baber/WOPTO huggingface dataset:
Patent GB-407704-A (GB)
Title: Devices for converting or translating acoustic energy into electric energy and vice versa
IPC: H04R15/00
Filed: 1932-09-21
Abstract: 407,704. Sound receiving and transmitting devices. FRANCIS, E. L., 88, Chancery Lane, London.-(Steinberger, R. L. ; 8, Hartford Street, Westwood, Massachusetts, U.S.A.) Sept. 21, 1932, No. 26280. [Class 40 (iv).] A sound receiving or transmitting device, which may be employed for subaqueous signalling, comprises a vibrator having a relatively immovable portion 2 secured to an object 1, such as the side of a ship, and a vibratory portion 4 adapted to vibrate expansionally in a direction normal to its end faces 7, 9 so as to produce an intermediate nodal plane between said faces, the portion 4 being supported by the portion 2 through a relatively thin and narrow web 6 arranged in or near a loop of the expansional vibrations. The vibratory portion 4 is made of a metal having small mechanical viscosity and a large bulk velocity of sound, such as cast aluminium which preferably contains about 5 per cent silicon, whilst its axial length is substantially equal to a half wave length or an integral multiple of a half wave length of the sound in the material of the vibrator. In order to obtain a vibratory portion having a large cross-sectional area compared to axial length, the portion 4 is, according to the invention, divided into sections or blocks having substantially the same natural frequency and comprising a central block 8, preferably in the form of a cylinder, and seven outer blocks 10 each of which may take the form of a sector of an annulus. The blocks 10 are integrally connected to one another near or at each end by radially disposed webs 12 and to the block 8 by thin annular webs 13. The blocks, which preferably have the same mass and the same height, although the block 8 may be slightly shorter as shown, are driven in unison by individual driving means, preferably of the magnetostrictive or piezo-electric type. As shown, each block has a magnetostrictive nickel tube 14 resonant with the block attached thereto by a cap plate 16 threaded on to a screw 18 integrally fixed to the block. Each core, which has a small cross sectional area compared with that of the block, is surrounded by an energizing coil 20 which may also supply a constant magnetic polarization to the core. According to a modification (Fig. 4, not shown), an additional ring of sectors is interposed between the blocks 10 and the portion 2.
Patent GB-599715-A (GB)
Title: Improvements in and relating to electrode for electric arc heating
IPC: B23K35/04
Filed: 1945-10-09
Abstract: 599,715. Electrode holders. CARBORUNDUM CO. Oct. 9, 1945, No. 26332. Convention date, Sept. 3, 1943. [Class 39 (iii)] An electric arc-welding or cutting electrode comprises a main body 30 of siliconised silicon carbide with metal of lower resistance extending along its length either in the form of metallic inserts 34 or an outer sheath 32, applied by spraying, casting or shrinking a tube thereon, or by locating the tube as a core or between the inner and outer surface of the main body, or by locating a rod as a core or as a spiral reinforcement. Oxygen may be supplied through a central bore 31 and the holder may incorporate a clamp 11 bearing on the metal surface. Specifications 513,265 and 583,039, [both in Group XXXVI], are referred to.
Patent GB-1013726-A (GB)
Title: Improvements relating to methods of manufacturing glass
IPC: C03C4/14
Filed: 1964-06-25
Abstract: A glass is made by melting in an inert or weakly oxidizing atmosphere a mixture of the following oxides or equivalent compounds, in moles per cent: B2O3, 35-80; Fe3O4, 1-20; Al2O3, 2-15; Na2O, 5-20; PbO, 5-20; where 0.3<PbO/Na2O<3.3.  The glass contains iron in the ferrous and ferric states. For B2O3 may be used boric acid; for Al2O3 hydrated alumina; for Na2O, Na2CO3.10H2O, and for PbO, Pb3O4.  Fe3O4 may be used as such, or a mixture of Fe++ and Fe+++ salts, e.g. oxalates, may be used, the ratio of Fe++: Fe+++ used not being critical.  The glass is electrically conductive.
Patent GB-601889-A (GB)
Title: Improvements in and relating to articles of furniture
IPC: A47C3/04
Filed: 1945-10-10
Abstract: 601,889. Nesting furniture. AVERY, R. Oct. 10, 1945, No. 26431. [Class 52 (ii)] A chair or table constructed for nesting comprises two transverse supporting members a, b, of substantially inverted U-shape which are inclined to one another so that the widest spacing of the members occurs at their lower ends. The members a, b, are connected by ties e, f which may be welded thereto at varying levels as desired, or the ties may be formed integral with the support members a, b at the lower ends thereof.
Patent GB-1524582-A (GB)
Title: Incandescent lamp
IPC: H01K1/14
Filed: 1976-06-25
Abstract: 1524582 Electric incandescent lamps XEROX CORP 25 June 1976 [3 July 1975] 26463/76 Heading H1F A lamp comprises a filament having a plurality of coil sections 6 and a plurality of straight sections 8, the glass envelope 10 being pinched around the straight sections to form a series of cavities 14 around the coil sections. The envelope may contain bromine or iodine.
Patent GB-1116215-A (GB)
Title: Improvements relating to the production of cast tubular hollows
Inventor: WHITAKER PAUL
IPC: B22D18/04
Filed: 1964-06-26
Abstract: 1,116,215. Casting processes. STEWARTS & LLOYDS Ltd. 22 June, 1965 [26 June, 1964], No. 26492/64. Heading B3F. A method of casting tubes comprises the steps of causing, by gas pressure means, molten metal 3 to rise into a tubular die 4 which is heated to within a temperature range of 80‹ to 400‹ C., maintaining the gas pressure to hold the metal in the die for sufficient time to allow freezing of the metal adjacent to the die wall to a required thickness to form an embryo hollow and thereafter releasing the pressure to remove the residual molten metal from the die. The die is supported in the cover of a furnace body 1 containing the molten metal 3 into which the lower end of the die is immersed.
Patent GB-964496-A (GB)
Title: Booster-assisted brake system for vehicles
Inventor: DAVIS JOHN WALTER
IPC: B60T13/24
Filed: 1959-08-01
Abstract: 964,496. Fluid pressure brakes; indicators. GIRLING Ltd. Oct. 5, 1960 [Aug. 1, 1959], No. 26493/59. Headings F2E and F2F. A pedal operated booster-assisted braking system for a vehicle incorporates a master cylinder so that on failure of the booster the capacity of the master cylinder is increased to provide the pedal with a length of travel greater than normal during application of the brake. A pedal operated rod 25 in normal use shifts inwardly a piston 23 having shoulders 26 and 27 which close one valve 38 previously venting a booster cylinder 16 through a port 31, and opens another valve 39 connecting the cylinder 16 through a path 29, 38 and 34 to a vacuum source 37. A booster piston 17 and an integral piston 18 operating in a master cylinder 10 are moved forward, the consequent increase in pressure closing a reservoir valve 54 and pressurizing a brake line 14. The booster piston 17 and pedal operated piston 23 are normally locked together by a radial latch-pin 45 which is maintained by the vacuum source 37 acting on a piston 44 in engagement with a groove in a sleeve 28 fast with the piston 23, the piston 44 being slidable in a radial cylinder fast with the piston 17. Failure of the vacuum allows a spring to raise the latch pin 45 whereupon a spring 53 urges the piston 23 outwardly to raise the brake pedal which subsequently when applied moves only the piston 23 in the master cylinder so that the fluid displacement is less than normal, the pedal pressure being smaller and pedal movement greater.
Patent GB-315622-A (GB)
Title: Apparatus for tensioning and securing the ends of wire or the like used for tying bales, cases and other packages
IPC: B65B13/02
Filed: 1928-09-15
Abstract: 315,622. Hoffmann, E. Sept. 15, 1928. Wire strainers.-In a bale &c. wiring-apparatus in which the wire is gripped between pivoted cam grippers 7, Fig. 2, and stationary jaws 6 carried by sliding members 5 which, for tensioning the wire, are caused to approach one another by the rotation of cams 4 on a shaft 3, the cams bearing against the sliding members, the grippers are released by depressing levers 22 integral therewith until a spring-pressed catch 23, Fig. 1, pivoted on each sliding member 5 behind the gripper for movement in a horizontal plane, engages a recess 25, Fig. 5, in the gripper, which is then held in the released position against a spring 27, Fig. 1. The catches are provided with depending keys 26 which on being struck by the operator in inserting a new wire, withdraw the catch from the recess 25 and permit the spring 27 to swing the gripper automatically into gripping position. The overlapping ends of the wire are guided to the slotted twisting pinion 13, Fig. 2, by slotted guides 19 which, by rods 21, are moved positively with the sliding members 5. Specifications 167,010 and 221,771 are referred to.
Patent GB-281983-A (GB)
Title: Improvements in automatic change speed gears
IPC: F16H33/18
Filed: 1927-10-07
Abstract: 281,983. Aktiebolaget Spontan. Feb. 16, 1937, [Convention date]. Variable-speed and reversing ratchet gearing which varies automatically with the load and comprises an element 8, Figs. 1 and 2, to which alternate positive and negative impulses are imparted, the latter being transmitted to a stationary part 31, comprises also a mass 26, or group of masses, resiliently connected to the stationary part to which the damped negative impulses are transmitted. High frequency vibrations are eliminated and it is possible to reverse the one-way devices while in motion, there being a reversible roller clutch A and a like reversible detent B. In the arrangement shown, planetary eccentric masses 7 alternately in opposite phase carried by planet-gears 4 in a driving fly-wheel 2 impart the alternating impulses to a central gear 5 in a yielding manner so as to effect the automatic variation. The gear 5 is fast on the sleeve 8, which envelops both one-way devices. The clutch A drives a sleeve 9 fast on a driven shaft 12 and the detent B comprises a central substantially stationary sleeve 10. The sleeve 10 is connected through a flange member 25 to the characteristic shock-absorbing massive ring 26, which is in turn connected through radial spiral springs 29 to the normally-stationary member 31 which takes the negative impulses through detent B. There is a fly-wheel 23 fast on driven shaft 12 and a fixed enclosing casing 24. In Fig. 10 is shown an alternative arrangement of masses 26, 26' one within the other and connected by springs 54, 55 to one another and to the abutment 31. The means for effecting reversal of drive while in motion is shown in Figs. 1 and 3. Reversal of each grip device A and B is effected by a relative turning of its grip-roller cage, and the cages are operated in unison by the axial sliding of coupled cam sleeves 16, 17 as described in Specification 276,853. This is effected by sliding a sleeve 18 outside the sleeve 8, and this is effected in turn by turning a shaft 40 having a crank 49 in a ball-bearing 50. The abutment 31 is normally held fast by a pivoted spring- pressed locking lever 45. The reversal has to be effected quickly while the abutment 31 is free to turn. To this end, the shaft 40 carries a shaped cam 44 adapted to engage the lever 45 and to disengage it to free the abutment 31 just prior to a quick shift of the sleeve 18. This is done by the shape of the cam 44 together with a spring somewhere in the control. The shaft 40 is turned by a speed-multiplying pair 41, 42 operated from a wheel 43, which may be spring-held by a catch 56, Fig. 6, to effect a quick operation after the catch slips.
Patent GB-191165-A (GB)
Title: Improvements in or relating to hand propelled trucks, trolleys and the like
IPC: B62B3/00
Filed: 1921-10-07
Abstract: 191,165. Harris, W. G., Owen, A. J., and Vassall, H. G. Oct. 7, 1921. Suspending and mounting bodies and undercarriages; wheels, arrangeinent of;,equalizing load on wheels.- A hand-truck or trolley comprises a frame, three or more wheels units ratatably mounted thereon, a table also mounted on the frame, and means for turning the wheel units about their pivots simultaneously in the same direction. Four pairs of wheels b are mounted on axles c in forked brackets d pivoted on the frame a. A table e is rotatably mounted by a spindle f in a rotatable sleeve g which carries a gear wheel j, gearing through wheels m with wheels k on the axles of the brackets d. The sleeve g has arms g<1> on one of which a clutch lever g<2> is guided by a pin g<8>, the other arm g<1> having a lug g<5> engaging return springs g<7> on the lever g<2>. The clutch lever has a dog g<3> engaging a ratchet g<4> on the table e, so that the table and wheel may be rotated separately or together. The wheel axles are so pivoted to allow of rocking or tilting to conform to inequalities in the floor. Chain gearing may replace the gear wheels.
Patent GB-209168-A (GB)
Title: Improvements in variable electric condensers
IPC: H01G5/06
Filed: 1922-10-03
Abstract: 209,168. Pirie, M. V. Oct. 3, 1922. Condensers. - The movable vanes C of a variable condenser are insulated from the fixed vanes A by means of insulating material G which is moulded or compressed into apertures in the metal mounting plates O. Each of the plates D is preferably in the form of a ring having three radial arms H to the ends of which are secured the rods E carrying the fixed vanes. The movable vanes are carried by a spindle B mounted in metal bushes F carried by the insulation G. One or more of the fixed vanes may be formed with holes for receiving a stop-pin or buffer L, Figs. 4 and 6, for limiting the movement of the movable vanes. A fine adjustment of the capacity may be obtained, by means of a circular vane P mounted on a sleeve M, which surrounds the spindle B and is formed with an inclined slot N engaging a pin 0 carried by the spindle, rotation of the sleeve M varying the thickness of the air dielectric between the vane P and an adjacent fixed vane.
Patent GB-742558-A (GB)
Title: Improvements in or relating to method and apparatus for coating clock hands and the like
IPC: G04B19/32
Filed: 1953-09-30
Abstract: <PICT:0742558/III/1> <PICT:0742558/III/2> Clock hands or similar articles are coated with radium luminous material (a compound of radium and phosphorescent zinc sulphide) or the like, by mounting a plurality of such articles on a common support, providing a coating member with coating material, and moving the support to bring the portions of the articles to be coated into contact with the coating member.  This may be done in the apparatus shown which comprises a base 10 adapted for mounting on a table, and having a plate 22 removably mounted thereon.  The plate 22, which may be of steel or lead, has clips 28 adapted removably to secure thereto a tank 30 for the coating material.  A screen 32, which is preferably of "Monel" (Registered Trade Mark) metal or stainless steel wire mesh, but may be of foraminous metal, or a solid plate of glass, stainless steel or other suitable material, is mounted for vertical reciprocation into and out of the container 30; it forms part of an assembly comprising arms 34 and a cross-member 36, which is removably attached to a cross-member 40 on a slide 46.  The slide 46 is attached, through a spacer 48, to a second slide 50, which is guided for vertical reciprocation between plates 52, 54, by a rod 64 which may be raised by a treadle (not shown) beneath the table, and is urged downwards by a spring.  A stop 74 limits the upward movement.  Guides in the form of brackets 96, adjustably secured to uprights 100, are provided for supporting cards 82 on which clock hands 84 are mounted.  In operation, the tank 30 is filled with the coating material and the guides 96 and stop 74 so adjusted that, with a card in position and the screen elevated, the upper edge of the latter defines the upper limit of the portion of the hands to be coated.  The card is then advanced until the hands contact with the coating on the screen, and, if the hands are curved, they are rocked against it.  The card is then removed and laid in a horizontal position.
Patent GB-1346194-A (GB)
Title: Magnetic tape device
IPC: G11B5/48
Filed: 1971-04-19
Abstract: 1346194 Cassette recorder SUD-ATLASWERKE GmbH 19 April 1971 [30 Nov 1970] 26864/71 Heading G5R In a tape recording and playback machine 1 for magnetic tape 3 in a cartridge 2 which is received in a recess 4 in the machine, a magnetic head 5 on slide 6 is advanced to engage the tape and during this movement an abutment 8 on the head (or on the slide, Fig. 4, not shown) engages an inner surface of the cartridge casing to latch the cartridge against the action of spring 7 and to align the tape with the head 5. The spring 7 can be replaced by a spring loaded floor to the recess supported on a helical spring or solid elastomeric material.
Patent GB-262564-A (GB)
Title: Improvements in devices for adjusting the tension of wire mattresses
IPC: A47C23/28
Filed: 1925-10-27
Abstract: 262,564. Iliffe, E. H. Oct. 27, 1925. Mattresses. - Headed bolts 1, oppositely threaded, are inserted in the fixed and moving end bars 5, 6 of a wire mattress and are engaged by a socket or turnbuekle 3 correspondingly threaded and adapted for rotation by a spanner or tommy-bar. The ends of the socket enter counterbores 11 in the rails.
Patent GB-209187-A (GB)
Title: Improvements in pneumatic conveying systems
IPC: B65G51/20
Filed: 1922-10-05
Abstract: 209,187. Taylor, A., and Backhouse, E. Oct. 5, 1922. Pneumatic dispatch apparatus.-The speed of the carrier is diminished before ejection at the terminal by causing it to enter a section of the delivery tube in which air is flowing at a reduced rate, or through which no air is flowing. In a system comprisng delivery tubes 1, 2 delivering at stations 4, 3 respectively, a passage 8, spaced back from the delivery end 9 of the tube 2, leads to the tube 1 and the tube end 9 is connected by a passage 10 to the tube 1, the air flow through the two passages being controlled by valves. At the station 4 the tube 1 is connected to a tube 5 giving a parallel path for the air to pass to a return tube 6, valves being fitted as at the station 3. The return tube 6 has a station 7 for the reception of carriers from the station 3 for return to the central station 18.
Patent GB-264265-A (GB)
Title: Improvements in windshield wipers
IPC: B60S1/26
Filed: 1925-10-28
Abstract: 264,265. Ellis, G. B., (Holding Co., Inc., S. & U.). Oct. 28, 1925. Windows and the like, cleaning.-In mechanism for cleaning wind-screens, comprising two wipers connected to wiper shafts, one of which is driven by a motor and the other is driven from the first shaft by a detachable connection, a separate housing detachably secured to the wind-screen pawl is provided for the driving gearing on each shaft. As shown, the shaft 15 actuated a motor 10, is provided with a segmental pinion 14 engaging a rack rod 23 which also engages a pinion 25 on the shaft 15<1>. The pinion 14 is housed within the motor casing. The pinion 25 is heated in a housing 26 provided with a shank 27 which forms a bearing for the shaft 15<1>. The motor may be connected to the shaft 15 through the medium of a slipping clutch, as shown in Fig. 5. A gear wheel 31 loosely mounted on the shaft 15 is provided with a recess 32 adapted to receive part of a pin 33 fixed to the shaft. The wheel is pressed against the pin by a spring 34. If the wiper meets with an obstruction, the pin 33 moves out of the recess and the motor continues to drive the wheel 31 while the wiper is stationary. The clutch connection also facilitates movement of the wiper out of the line of vision of the driver of the vehicle.
Patent GB-201809-A (GB)
Title: Improvements in valves or the like fluid controlling means
IPC: F16K25/04
Filed: 1922-10-07
Abstract: 201,809. Grainger, J. E., Dixon, W. G., and Shadbolt, S. M. Oct. 7, 1922. Closure members, compound. - In a valve of the type comprising a lift closure member combined with a tubular closure member having a V-shaped or equivalent port, the apex 5, Fig. 1 of the V-shaped port 4 is disposed below the level of the face 8 of the lift member so that the port opens after the lift member has left its seating 6. An upstanding flange 10 is disposed between the seating 6 and the tubular member 3. These features serve to prevent " wire cutting of the faces of the lift valve. The apex 5, Fig. 2, of the port 4 may be bevelled, as shown at 9, to increase the deflecting action on the fluid at small openings of the valve.
Patent GB-802601-A (GB)
Title: Improvements in and relating to apparatus for recording hits on targets
IPC: F41J5/06
Filed: 1956-09-05
Abstract: 802,601. Indicating apparatus for targets. NETHERLANDS, MINISTER OF STATE FOR WAR. Sept. 5, 1956 [Sept. 8, 1955], No. 27241/56. Class 20(1) In apparatus for counting the number of "hits" scored in target or gunnery practice, a microphone converts the pressure waves generated by projectiles passing close to or hitting the target into electrical waves which are fed to a pre-amplifier connected to an impulse generator, the output of which after differentiating, is fed to a multivibrator which has two stable conditions and which actuates a counting device. As shown, a thyratron valve impulse generator is biased to normally prevent conduction, and a capacitor 4 is charged to the H.T. voltage through a resistor 3. Upon a positive voltage being fed from a preamplifier 1 to the control grid of the valve 2, the latter conducts and the capacitor 4 discharges to the cut-off voltage of the valve which then ceases to conduct and the capacitor is againcharged up to the voltage of the H.T. source. The saw-tooth wave produced is differentiated by a capacitor and resistor 5, 6, the resulting short negative impulse followed by a positive square form wave being fed to a flip-flop circuit comprising a double triode valve 7, 8. A further thyratron valve 10 has its grid connectedto the output of the flip-flop circuit and has a counting device relay 11 in its anode circuit. A neon tube 12 is connected across the anode and cathode of the valve 7. Fig. 2 represents the operation of the apparatus when two guns which may have firing rates of 12 rounds per second are operated; (a) indicates a series of impulses I, II from the pre-amplifier, which result from hits by the respective guns and which are fed to the valve 2. Assuming that at the start of the series of hits, the valve 7 is conducting, the first negative portion of an impulse (b) produced by the valve 2 will cause the valve to cut-off and its anode voltage will rise (c), the anode voltage of valve 8 being correspondingly decreased (d). Sumultaneously the neon tube 12 will ignite and remain so until a second impulse of the series (b) causes the valve 7 to conduct again and the valve 8 to cut-off, the voltage on the grid of the valve 10 rising and causing operation of the counting relay 11. Only the even numbered impulses, i.e. e<SP>1</SP>, e<SP>11</SP>, e<SP>111</SP>, are registered by the counter, the odd numbered impulses merely causing the neon tube 12 to be ignited. The heavy lines at (f) indicate the periods of glowing of the tube 12. To score the total number of hits, the number indicated on the counter is doubled and if the neon tube remains ignited at the end of a series of hits, the score is increased by 1. For recording hits scored by four guns; a further flip-flop circuit, including an additional neon tube, may be used.