baber/WOPTO huggingface dataset:
Patent GB-385388-A (GB)
Title: Improvements in and relating to protective apparatus for electric circuits
IPC: H02H7/16
Filed: 1931-10-26
Abstract: 385,388. Protective cut-out arrangements. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. -(Assignees of Moffett, G. A. ; 154, Sacandaga Road, Scotia, New York, U.S.A.) Oct. 26, 1931, No. 29672. Convention date, Oct. 25, 1930. [Class 38 (v).] Protection of a condenser 7, for regulation or power-factor improvement in a highvoltage conductor 1 interconnecting two synchronous machines, is obtained by means of a gap 8 in series with an operating coil 9 of a normally-open contactor 10. Excess current in the conductor 1 raises the voltage across the condenser 7 and, to prevent overstressing the latter, the gap 8 is. arranged to break down and energize the coil 9, which closes the contactor 10 and short-circuits the condenser. Part of the coil 9 acts to hold the contactor 10 closed until the current falls to a safe value. In the event of a breakdown of the condenser dielectric, the voltage across the condenser is insufficient to energize a winding 16 which thereupon allows the normally-closed contacts 15 to open and remove a short-circuit from a coil 13. The latter removes a latch and allows a spring 12 to close contacts 11 and shortcircuit the condenser. A time-lag device 18 prevents operation of the coil 13 due to lack of voltage across the condenser on first closing the circuit of conductor 1, and the contacts 11, after being tripped, require to be reset. In conductor 2 a similar overload protection device is shown, but a pair of serially-connected contacts 10<1> are provided. The condenser 7 is, however, replaced by parallel-connected condensers 71 such that if the dielectric of one breaks down, the balance of a circulating- current circuit is upset and a coil 121 trips the manually-reset contacts 11<1> closed, preferably with a time-delay. In a modification of the equipment for conductor 2, Fig. 3 (not shown), the switch 11<1> is dispensed with and the movable element thereof instead may be arranged, when tripped, to act on the contacts 10<1> to close them. In a modification for medium or low-voltage circuits, Fig. 2 (not shown), there may be insufficient voltage across the condenser 7 in overload conditions, so the equipment is adapted to be current instead of voltageoperated. A current-coil is connected in series with the condenser for actuating a contactor which short-circuits the condenser and all but the holding turns of the coil. Alternatively, the condenser may be in parallel with that part of the coil which is not used for holding the contactor closed. Specifications 286,693, [Class 38 (v), Electric switches &c.], and 373,047 are referred to.
Patent GB-796184-A (GB)
Title: Apparatus for treating box blanks
IPC: B31B1/74
Filed: 1955-10-18
Abstract: 796,184. Feeding sheets. LABOMBARDE. P. D. Oct. 18, 1955 [Feb. 9, 1955], No. 29679/55. Class 100(1). [Also in Group XVII] Box blanks are fed from a blank separating and feeding station to, and through, a blanktreating station by an endless, continuously moving conveyer provided with alternate sets of fixed and pivoted lugs thereon, the pivoted lugs being controlled to swing upwardly to engage the rear edge of a blank to feed it to the treating station and then release it, and the next set of fixed lugs then engages the blank and feeds it through that station. Sheet-separators:- The blanks 20 are stacked in a magazine 184, and are each coated on both faces with wax or other material. The separator mechanism is substantially as described in Specification 795,621 and comprises a front adjustable gate member 186 co-operating with the magazine base normally to allow only one blank to pass. A carriage 203 (not shown), longitudinally slidable in fixed tracks below the magazine 184, supports a number of suction cups, such as 206, each having a flat friction rim for engaging the bottom blank 20. On the return stroke of the carriage, compressed air is supplied to the cups 206. The suction and compressed air supplies are controlled by a valve 211 operated by a cam on a drive shaft 222 which also operates the carriage. The reciprocating suction and friction cups feed the bottom blank between a pair of feed rollers 199, 200. Sheet-forwarders; pusher-feeds:-Each blank 20 is fed by the rollers 199, 200 on to a pair of endless chains 110, 111 (not shown), passing over sprockets 122, 124, the latter being driven continuously from a shaft 102 by chain and sprocket gearing. This shaft 102 also drives sprockets on the shaft 222 and the lower feed roller 200 by means of a chain 225. The shaft 102 is driven through reduction gearing 231 from a shaft 233 and pulley 234, or by a separate motor. Each conveyer chain has pivotallymounted lugs 134 thereon which are used solely to forward a blank 20 to a position between opposed electrically-heated members 51, 52, and has further fixed lugs 137 thereon for forwarding the blank, after treatment by the members 51, 52, to a delivery belt 116. The lugs 134, 137 are arranged alternately, and are spaced apart along the chains at a distance at least as great as the length of a blank. The pivoted lugs 134 are controlled by fixed cam tracks, such as 140, which are engaged by pins on the lugs to swing the lugs upwardly into operative position to feed a blank, and then to depress them to release the blank in position between the heating members 50, 51. The blanks 20 are supported on side rails, which also provide guard covers for the conveyer chains 110, 111, during conveyance by the chains, and are urged against these rails and the pusher lugs 134 or 137 by a series of spring fingers 151 adjustably mounted on supports above the chains.
Patent GB-1222759-A (GB)
Title: Pneumatic radial tires for use in 2-wheeled vehicles
IPC: B60C9/20
Filed: 1969-06-11
Abstract: 1,222,759. Pneumatic tyres. BRIDGESTONE TIRE K.K. 11 June, 1969 [25 June, 1968], No. 29707/69. Heading B7C. A pneumatic tyre for use in 2-wheeled vehicles comprises a radial cord carcase layer 1, a breaker layer 3, and a safety ply 5 disposed between the breaker and carcase and extending from bead 2 to bead 2<SP>1</SP>, the cords of both breaker layer 3 and safety ply 5 being disposed at between 0-30 degrees to the mid-circumferential plane but in opposite senses. In modifications, the safety ply is disposed radially inwardly of the carcase ply 1 (Fig. 3b, not shown) or the breaker layer is omitted and two or more safety plies with the cords of adjacent plies crossing are used in its place.
Patent GB-637557-A (GB)
Title: Improvements in or relating to spindles for spinning and twisting textile threads
IPC: D01H7/86
Filed: 1947-11-07
Abstract: 637,557. Twisting textile threads. FANE, G. W. R. Nov. 7, 1947, No. 29726. [Class 120 (ii] Double-twist spindle comprises a one piece shank or spindle proper having its upper end a<SP>2</SP> bored out to receive the thread k, a lower portion a formed with a seat for a ball or roller bearing b, and a hollow middle portion a<SP>1</SP> of larger diameter and formed with two diametrically-opposite slots a<SP>3</SP> for outward passage of the thread entering through the bored upper end. The hollow interior of the middle portion a' is curved or tapered at the end connecting it with the bore of the spindle. A driving pulley e with a rotating cup f may be seated on the enlarged middle portion a<SP>1</SP>, the boss of the driving pulley having diametrically opposite thread openings e<SP>1</SP> adapted to register with the slots a3. Alternatively, the rotating cup f may have a boss having diametrically opposite thread openings which register with the slots a<SP>3</SP>, the driving pulley e then being seated on the lower portion a of the spindle proper. The lower extremity of the spindle proper is reduced slightly in diameter to fit the bush c and is fitted with a silver-steel plug m which rests on the ball d forming the footstep bearing of the spindle. Specification 472,998 is referred to.
Patent GB-343992-A (GB)
Title: Improvements in, or relating to, wall or like plugs
IPC: F16B13/08
Filed: 1929-10-02
Abstract: 343,992. Screw sockets. LLEWELLYN, J. B., 24, Coleman Street, London. Oct. 2, 1929, No. 29892. [Class 89 (i).] A device for securing a screw 1 in a wall comprises a screwed socket 2 with prongs 4 the ends 3 of which are flared to engage the conical end of the sleeve 5. These ends are also sharpened to enter the material of the wall. In a modification the sleeve is provided with grooves to fit the tongues and has a head to prevent the socket turning. In a further modification grooves are provided on the outer cylindrical surface of the socket to grip the sides of the hole in the wall.
Patent GB-299771-A (GB)
Title: Improvements relating to means for injecting liquid fuel into the cylinders of self-ignition oil engines
IPC: F02B19/14
Filed: 1928-10-17
Abstract: 299,771. Acro Akt.-Ges. Oct. 1927, [Convention date]. Cylinders receiving liquid fuel. - In engines in which the air is forced through a constriction h into an auxiliary chamber i at the end of the compression stroke, the stream of liquid fuel issues into a funnelpart g, substantially at right angles to the axis of the nozzle-holder d. The piston may be cut away as shown to accommodate the end of the nozzle-holder, or the latter may be set back in the cylinder wall, which is then provided with a passage for the stream of fuel, the nozzle-holder being arranged tangentially to the cylinder bore if desired; the nozzle-holder may be arranged parallel to the cylinder axis, the chamber i being then placed at the side. For starting a. plug, containing an electrically heated wire, may project into the funnel shaped part g. The chamber i may be formed in the piston.
Patent GB-465118-A (GB)
Title: Improvements in and relating to amplifying circuits suitable in connection with television
IPC: H04N5/14
Filed: 1935-10-30
Abstract: 465,118. Valve amplifying circuits. BRITISH THOMSON-HOUSTON CO., Ltd., and MYNALL, D. J. Oct. 30, 1935, No. 29973. [Class 40 (v)] An amplifier for television scanning-voltages is provided with a high load resistance R in its anode circuit, and loss of amplification of the highest frequency components of the scanning- voltages is avoided by inserting a suitablydesigned impedance (such as r, c) in the cathode lead. The loss at high frequencies is due to unwanted capacity (represented by a condenser C) between anode and earth and is of greater extent when the resistance R is high. This loss is overcome by inserting an impedance in the cathode lead, which should be approximately of the same kind as the complex impedance in the anode circuit. In the case shown the product rc should approximate to the product RC. A second valve in push-pull may be fed from a portion of the resistance R.
Patent GB-898584-A (GB)
Title: Improvements in or relating to the manufacture of laminated safety glass
IPC: B32B17/10
Filed: 1960-08-31
Abstract: 898,584. Laminates. FORD MOTOR CO. Ltd. Aug. 31, 1960 [Aug. 31, 1959], No. 30055/60. Class 140. Curved laminated safety glass is manufactured by bending a pair of superposed glass sheets on a bending mould and forming aligned depressions in the edges of both sheets, on the corners of said sheets ; then separating the sheets and removing them from the mould and assembling the sheets with a plastic interlayer, e.g. a vinyl resin, while matching the marks to orient the glass sheets into the same relative position as they occupied on the bending mould. The depressions, which may be arcuate, may be formed by grinding. Curved laminated safety glass may be used in wrap-round windscreens of automobiles, e.g. Fig. 5. In such a case the aligned depressions, 21, are preferably made on the corners, 20, formed by the intersection of two generally perpendicularly extending adjacent edges of the glass.
Patent GB-1510847-A (GB)
Title: Process for the production of saccharified starch product
IPC: C13K7/00
Filed: 1975-07-17
Abstract: 1510847 Saccharification of starch hydrolysates to maltose HAYASHIBARA SEIBUTSU KAGAKU KENKYUJO KK 17 July 1975 [17 July 1974 7 Nov 1974] 30101/75 Heading C2S [Also in Division C3] Starch hydrolysates are saccharified to give maltose contents of greater than 50% by weight by treatment with an enzyme having a ratio of maltotriose-hydrolysing activity to maltosehydrolysing activity of 2À5 or greater. The enzyme may be derived from a wide variety of bacteria.
Patent GB-535864-A (GB)
Title: Improvements in handles for carrier bags, boxes and the like
IPC: B65D33/12
Filed: 1939-11-16
Abstract: 535,864. Carrier bags. PADWA, P. Nov. 16, 1939, No. 30193. [Class 133] The string carrying-loops of a carrier bag are provided with handles 4 of flattened shape formed by wrapping thin paper such as brown or kraft paper coated with adhesive around them.
Patent GB-993700-A (GB)
Title: Arc initiation by spark injection
Inventor: CREVIS NORMAN
IPC: B23K9/073
Filed: 1962-08-07
Abstract: 993,700. Arc welding systems. BRITISH OXYGEN CO. Ltd. Oct. 31, 1963 [Aug. 7, 1962], No. 30213/62. Heading H2H. An inert gas shielded arc welding circuit has an oscillatory choke capacitor combination 5, 8 for producing a high frequency discharge which is blocked on negative half waves by a rectifier 9. A high resistance 11 enables the capacitor to be changed from the D.C. welding source 1. A protective device 11 such as a gas diode or selenium rectifier protects the diode 9 against reverse over-voltages. A high voltage source 4 provides pulses to start the arc through a spark gap 7, which pulses are blocked from the remainder of the circuit through inductor 8.
Patent GB-423386-A (GB)
Title: Improvements in photoelectric control apparatus
IPC: G05D23/22
Filed: 1933-10-31
Abstract: 423,386. Controlling apparatus by light. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, EDEN, E. M., and STOPFORD, C. W., c/o General Electric Co., Wembley, Middlesex. Oct. 31, 1933, No. 30219. [Class 40 (v)] [See also Group XIII] In order to ensure that apparatus controlled manually or automatically by the aid of an indicator associated with a beam of light and a photo-electric device shall be put into a state of least activity when some portion of the apparatus is so damaged that control is no longer possible, the indicator is caused to interrupt the light when in the position, e.g., zero, which it then takes up, as well as in positions on the side of the critical point remote from zero. In the control an electrically heated furnaco, the pointer 13 of a millivoltmeter connected to a thermo couple interrupts the light passing from a lamp 1 to a photo-electric device 14 when it reaches the point 6 corresponding to the desired furnace temperature, and in this and positions beyond it the flag attached to the pointer maintains the flow of energy to the furnace at the low level to which it has been reduced by the action of the device 14. When the pointer returns to zero, in the conditions mentioned, it is arranged to interrupt the beam at a point 10 in the neighbourhood thereof to cause a reduction of energy flow to the low level. The mirror 9 is carried by an arm which is geared to the arm carrying the light source 1, screen 3, lenses 2, 4, 11 and mirror 7 so that adjustment of this arm to determine the critical point shall not disturb the path of the beam past the mirror 9, lens 12 and point 10 to the photo-electric device 14. In a modification, Fig. 2, in which the indicating device is a mirror 1 the beam is reflected to the photoelectric device 6 from a concentric mirror 5 in front of which are arranged the adjustable member 7 and the fixed member 9, which interrupt the beam in the critical and zero regions respectively. The invention includes the converse arrangement in which light is permitted to pass to the photo-electric device instead of being interrupted.
Patent GB-1182490-A (GB)
Title: Variable Attenuators
IPC: H03G1/00
Filed: 1967-06-30
Abstract: 1,182,490. Volume control. JERROLD ELECTRONICS CORP. 30 June, 1967 [15 July, 1966], No. 30229/67. Heading H4R. A variable attenuator has, as the variable element, the emitter to one base path of a unijunction transistor having the other base left unconnected. The attenuation is controlled by varying the D.C. current flowing through the unijunction transistor from the emitter to the one base to vary the impedance of that path. One embodiment, Fig. 1 (not shown), includes the emitter base path in the shunt arm of a simple potentiometer in the signal path, while a second embodiment, Fig. 4, shows the attenuating and control elements of an A.G.C. system in which a bridged-tee attenuator comprises series resistors 15 and 17, with a shunt variable resistor formed by the emitter to base B1 path of transistor 10a, and a bridging variable resistor formed by the emitter to base B1 path of transistor 10b, capacitors 16 and 19 being included to provide D.C. blocking. The impedances of transistors 10a and 10b are differentially varied by including them in the collector circuits of transistors 28a and 28b of the differential amplifier 40 to which the A.G.C. control voltage is applied. In a manual gain control circuit the differential amplifier is replaced by a potentiometer (21), Fig. 3 (not shown).
Patent GB-1276165-A (GB)
Title: X-ray film holder and connecting means
Inventor: BEST RICHARD GEORGE
IPC: G03B42/04
Filed: 1969-06-13
Abstract: 1276165 Radiographic films PRECISION X-RAY CO 13 June 1969 30238/69 Heading H5R A periapical X-ray film, e.g. for dental use, enclosed in a disposable film wrapper, is mounted against the support plate 64<SP>1</SP>, Fig. 11, of an X- ray shield and aiming means, by non-metallic band means secured to one face of the film wrapper and arranged to overlie the support plate to maintain registration therewith. The band means may consist of a paper band 36, Fig. 5, having its ends 38 folded and cemented to the film wrapper 34 to form a loop which may be slid over the support plate, the band having an arcuate shaped opening through which a pulltab on the wrapper may project (Figs. 6 and 7, not shown). In the embodiment of Fig. 11, a sheet of paper 70<SP>1</SP> is secured at its top and side edges to the wrapper to form a pocket which may be slid over the support plate, which has a curved top to facilitate this operation; a central portion of the pocket sheet may have two parallel lines 74<SP>1</SP> of spaced perforations with a pull-tab 78<SP>1</SP> at the bottom, the pull-tab 82<SP>1</SP> on the film wrapper being secured by a spot of cement 84<SP>1</SP> to the intervening region of the sheet. Alternatively, the film wrapper, which may also contain a lead shielding foil, may have a pair of parallel lines of spaced perforations lying beneath those formed in the pocket sheet, but which extend also down the other side of the film wrapper, and which end in a pull-tab lying directly beneath that formed on the pocket, whereby the two pull-tabs may be simultaneously engaged by the fingers (Figs. 13 and 15, not shown). The support plate 64<SP>1</SP> is mounted, for introduction into the mouth, at the end of an arm 18 secured to a stainless steel circular shield 10, Fig. 3, which covers the core 12 of an X-ray machine, has a central rectangular aperture equal in width to the support plate, and is provided with a pair of arms (14, Fig. 1, not shown), one of which is held by the patient to maintain the plate in position in the mouth. Arm 18 has an off-set portion 26 to ensure that the plate is axially aligned with the aperture in the shield.
Patent GB-1134314-A (GB)
Title: New carbonic acid esters
IPC: C07C327/20
Filed: 1967-06-30
Abstract: 1,134,314. Carbonic acid esters. AGRIPAT S.A. 30 June, 1967 [1 July, 1966], No.30255/67. Heading C2C. [Also in Division A5] Novel compounds of the general formula wherein R is C 1 -C 4  alkyl, Hal is chlorine or bromine and n is 0, 1 or 2 are prepared by reacting an ester of the formula with an acetyl halide of the formula
Patent GB-729948-A (GB)
Title: Vehicle window raising and lowering mechanism
Inventor: STEPHENSON CYRIL HEATH
IPC: E05D13/00
Filed: 1952-11-29
Abstract: 729,948. Vehicle window operating mechanism. WILMOT-BREEDEN, Ltd. Feb. 22, 1954 [Nov. 29, 1952], No. 30313/52. Class 20 (3). A vehicle window raising and lowering mechanism includes a radial window-actuating arm a freely pivoted on a spindle d for a hand lever e, a short arm f secured to the spindle d and having a lost-motion connection with the arm a, a stud g on the arm a passing through an elongated hole h in the arm f, and a pawl r pivoted on the stud g having near its pivotal end a projection r<SP>1</SP> for engagement with a finger-piece s in the arm f and being hooked at its free end to engage with catch-pieces t, u on a ratchet plate q. An abutment x on the pawl r bears against the spring o to load the pawl. The spindle d is supported in a bearing piece i secured to the sheet-metal door part by a nut k, the ratchet plate q being clamped between the part j and the bearing piece i, and a decorative boss n being freely mounted between the lever e and facing material m of the door. The arm a carries a roller b at its free end which engages in a channel secured to the lower edge of a window c vertically movable in guides in the vehicle door, the window being counterbalanced by a spring o connected between the free end of the arm a and a lug p on the ratchet plate q. When lowering the window the initial movement of the hand lever e moves the short arm f to an extent determined by the length of the slot h to cause the finger s to rock the pawl r to disengage it from the part t, or u, continued movement of the handle e causing the arms f and a to move together and the window to descend, a projection v on the arm a engaging an abutment w on the bearing piece i when the window reaches its lowermost position. Upon operating the lever f to close the window the arms a, f move together and upon approaching the closed position the pawl r engages one of the parts t, u. The arm a may be in the form of a parallel motion linkage.
Patent GB-1423412-A (GB)
Title: Ion plating method and product therefrom
IPC: C23C14/58
Filed: 1973-06-26
Abstract: 1423412 Ion implantation coating with metals; carburizing nitriding boriding N N ENGEL 26 June 1973 [9 Aug 1972] 30328/73 Headings C7F and C7U Iron or steel is bombarded with metal ions which penetrate the substrate, bombardment is continued for long enough to produce a coating of the metal over the ion-implanted substrate, and the resulting coated substrate is hardened. Typithe implanting ions are selected from Sc, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Y, Ac, Th, Pa, U, Np, Pu, Am, Cm, Bk, Cf, Es, Fm, Mv, No, Lw, Fe, Co, Ni and B, and hardening is by reaction of the coating with a different one of said elements or with C, N, or B. The substrate may be steel containing 0À3-1À8%C and is ion-cleaned using an Ar plasma, e.g. at 2 x 10<SP>-</SP><SP>5</SP> Torr or lower, and is then connected as cathode and implanted with ions from a source which is either the element on a heated W wire or a pod of the element formed by electron beam heating; the resulting vapour is ionized by the Ar plasma and penetrates the substrate typically to a depth of 1-20 mils. Carburizing may be in hydrocarbon gas at 600- 900C or in N 2 /propane plasma, or by box, cyanide or gas carburizing. Steel substrates may then be quench-hardened to produce martensite; the process is useful in producing cutting edges having a Knoop hardness > 1200. In examples steel files or C steel are implanted with Ti, or Fe and carburized either in CH 4 /H 2  or N 2 -C 3 H 8  plasma.
Patent GB-1065137-A (GB)
Title: Photographic camera
IPC: G03B7/16
Filed: 1965-07-16
Abstract: 1,065,137. Photographic cameras. AGFA A. G. July 16, 1965 [July 18, 1964], No. 30336/65. Addition to 1, 37, 503. Heading G2A. A photographic camera as claimed in the parent Specification has a supplementary lens (10) for the camera objective (11) which is moved into the optical path of the objective (11) upon introduction of a flash bulb (16) in a lamp holder 3, 4. A pin (5) is then moved in the direction c thus rocking a lever 10 which carries lens (10). At the same time exposure time setting device 12 is rotated until a suitable exposure time, e. g. 1/30 second is set.