baber/WOPTO huggingface dataset:
Patent GB-228261-A (GB)
Title: Improvements in apparatus for injecting liquid fuel into the combustion chambers of internal combustion engines
IPC: F02M57/02
Filed: 1923-10-31
Abstract: 228,261. Blackstone, G. M., Carter, F., and Carter, E. Oct. 31, 1923. Lever and spring actuated pumps; buffers, springs, and the like.-Fuel for injection into the cylinders of an internal-combustion engne is supplied by a pump in measured quantities through a non-return valve d<1> to a chamber x, communicating with the fuel injector chamber c<4> and forming the pressure chamber of the fuel injection pump. The injection pump d<3> is in contact with a second plunger e provided with a cap e<4> slidable thereon, a spring e<1> being held between the head e' of the plunger e and the cap e<4>. As the fuel is supplied to the chamber x, both plungers d<3> and e, together with the cap e<4>, are moved outwards from left to right. Immediately preceding the injection a roller f<1> on the cam-shaft actuated lever f engaging the cap e<4>, and since the plungers e and d<3> are unable to yield owing to the fuel in the chamber x, compresses the spring e<1>, until a projection h on the lever f engages an adjustable tapped h<1>. When this occurs, the arm of a bell crank lever h<3> is moved out of contact with the outer end of the fuel injection valve c, thus removing from the valve the pressure of a supplementary spring h<2>. The pressure of the fuel in the chamber c<4> is then sufficient to open the injection valve c against the pressure of another spring (not shown), and injection takes place, the plungers e and d' moving from right to left under the influence of the spring e<1> at a speed independent of that of the engine. A buffer spring e<5> checks the outward movement of the plunger, and a valve i permits the escape of imprisoned air at starting, are provided. Specification 229,966 is referred to.
Patent GB-1485726-A (GB)
Title: Electronic timing circuit
IPC: H03K5/13
Filed: 1975-06-30
Abstract: 1485726 Delay circuit SEIKO KOKI KK 30 June 1975 [22 July 1974] 27559/75 Heading H3T A circuit, Fig. 2, in which a relay R L  is energized when a contact SW 1  is closed and is de-energized a predetermined period after a contact SW 2  is opened, the period being that taken by a capacitor C 0  to charge sufficiently via a resistor R to switch a Schmitt trigger T 1 , T 2 , is so arranged that a jittery closure of the contact SW 1  will not cause a jittery energization of the relay, since at the instant when the contact SW 1  is closed it will be effectively shunted by the capacitor C 0 . Thus, the capacitor C 0  performs both a timing function and also a jitter preventing function.
Patent GB-191196-A (GB)
Title: Improvements in starting devices for internal combustion engines
IPC: F02N3/04
Filed: 1921-10-18
Abstract: 191,196. Boscato, V. Oct. 18, 1921. Turning-gear.-A starter for motor-vehicle and like engines is of the kind in which a foot or other lever is connected to a toothed segment for rotating a free-wheel pinion on the engine shaft and tensioning a spring, the parts being returned by the spring to effect starting. The shaft a of a pedal or hand lever b carries an arm b<1> connected.-by a link to the pivoted segment d, and the power spring f is connected directly to the segment and to the frame e. The segment d is normally out of engagement with the freewheel pinion h on the engine shaft g. The device may be connected in any suitable manner to gearing for driving an ignition magneto at a suitable speed.
Patent GB-386729-A (GB)
Title: Improvements in and relating to high tension switch gear
IPC: H02B13/035
Filed: 1931-10-06
Abstract: 386,729. Switchgear structures. AKT.-GES. BROWN, BOVERI, ET CIE, Baden, Switzerland. Oct. 6, 1931, No. 27725. Convention date, Oct. 15, 1930. [Class 38 (v).] A switchgear structure for connecting a feeder to a ring-main comprises a totally-enclosed chamber 8 containing the current transformers 9 and potential transformers, the chamber being located between the top 6 of the power oil switch chamber 11 and the bottom 7 of the chamber 3 of the oil-immersed bus-bar disconnecting switches 1. An integral casting provides also a chamber 14 for the relays and measuring instruments. The movable members 1 are arranged to open with a quick action and, in the closed position, to be collinear with the bus-bars 2, and funnels 15 for each bus-bar are arranged beneath closeable openings for testing or earthing the appropriate bus-bar. A cover 10 of the intermediate chamber 8 is suitably interlocked with the various switches and the latter are also indirectly interlocked with the lowering gear for the tank 11. Indicators for the bus-bar switches 1 may be provided.
Patent GB-1181113-A (GB)
Title: Coal Ploughs
IPC: E21C27/34
Filed: 1967-06-16
Abstract: 1,181,113. Mineral-mining ploughs. GEWERKSCHAFT EISENHUTTE WESTFALIA. 16 June, 1967 [30 July, 1966], No. 27814/67. Heading E1F. In a coal plough having a plough body 1 on which two oppositely directed cutter carriers 5 are pivotally mounted about axes 6 upwardly inclined towards the centre of the plough body, the leading carrier in either direction of movement of the plough along a face is rendered operative by engagement with an associated abutment of abutments 11 on a draw bar 10 connected in the haulage means 2 of the plough and the trailing carrier is moved to an inoperative position by the movement of the leading carrier as it becomes operative, the carriers being coupled by a strut 8.
Patent GB-1494470-A (GB)
Title: Safety limit switch
IPC: H01H3/00
Filed: 1976-07-05
Abstract: 1494470 Retractive switches HONEYWELL GmbH 5 July 1976 [7 July 1975] 27863/76 Heading H1N A safety limit switch assembly comprises a main snap-action switch A, a normally-closed auxiliary switch B and an actuating member 2-3-9 for actuating the switches A and B in sequence, wherein the switch B comprises a lever 11 carrying a contact and biased by a spring 16 to urge said contact towards a fixed contact, said lever 11 having a projection 14 surrounded by a coil spring 13 acting between the lever 11 and the actuator 9, the height of the projection 14 being greater than that of the coil spring 13 when fully compressed, so that movement of the actuator in an operative direction causes, in sequence, the main switch A to snap over, the coil spring 13 to be compressed until the actuator engages said projection 14, and the auxiliary switch B to open under the force exerted by the actuator on said projection. As shown, the rod 3 is connected to actuator 9 via an adjustable screw 10 to enable the effective length of the actuating member to be varied, thereby varying the travel necessary between actuation of switches A and B. The assembly may be used with the normally-bridged terminals 23, 24 in series with switch B so that the circuit is opened even if switch A fails, due to contact welding, for example. A lamp (32, Fig. 2, not shown) may be connected across switch B contacts to indicate when switch B opens with switch A still closed.
Patent GB-464036-A (GB)
Title: Improved means for reinforcing metal doors
IPC: B61D19/02
Filed: 1935-10-10
Abstract: 464,036. Doors for passenger vehicles. LIGHTALLOYS, Ltd., and GRIEVE, W. H. Oct. 10, 1935, No. 27946. [Class 103 (ii)] [Also in Groups X and XXII] Cast metal doors have a reinforcement 6, Fig. 2, of steel or like higher tensile metal embedded in the stile during casting, or subsequently. The reinforcement may be solid or hollow and of any suitable section. The door may have a projecting tongue 2 and a rubber cushion 3 secured by washers and rivets or plates 4, or by one plate and a projecting edge of a door panel. The cushion may be tubular as shown in Fig. 4, and be secured by washers 11 and screws. The reinforcement may be inserted into a close fitting bore in the stile after casting.
Patent GB-1393949-A (GB)
Title: Network of digitally controlled nodes
IPC: G06F7/507
Filed: 1972-06-15
Abstract: 1393949 Adder-ripple carry circuits RCA CORPORATION 15 June 1972 [16 June 1971] 27986/72 Heading G4A [Also in Division H3] A switching network consists of cascaded stages each stage comprising a first transistor G2, G4-G14, Fig. 4, between a first potential point and the output node of the stage, a load device L1-L8 connecting the node to a second potential point, and transmission gates G1A, G3; G3A, G5-G13A, G15 with two control electrodes between adjacent nodes, input signals being applied to the control electrodes of the transistors G2-G14 and transmission gates G1A-G15, one control electrode of the transmission gates in adjacent stages receiving the same input signal. In the adder described, a plurality of adder ranks R1, R2, Fig. 2, are provided, each rank producing sum and carry signals from a respective group of four bits. Each rank comprises a pair of adders 11, 12 receiving the same four pairs of input bits but complementary conditional carry signals C, C. The two adders in each rank thus operate in parallel to provide sum and carry signals for the applied bits for both possible carry states, one or other set of carry and sum bits being selected by the CARRY or CARRY signal from the preceding rank using sets of four gates 15 or 16 and gates 20, 21 or 22, 23. The switching network described above performs the function of the gate sets 20, 21 and 22, 23, and is constructed from integrated circuit FETs. (For Figures see next page.)
Patent GB-1002888-A (GB)
Title: Improvements in or relating to stitch control mechanisms for sewing machines
IPC: D05B27/22
Filed: 1963-07-16
Abstract: 1,002,888. Sewing machines. G. M. PFAFF A.G. July 16, 1963 [July 18,1962 ], No. 28044/63. Heading D1G. [Also in Division F2] In a sewing machine having needle feed and feed by dog adjustable simultaneously, the means for controlling the needle feed is provided externally of the machine casing under the hand wheel or flywheel of the machine, and comprises a crank on a rock shaft extending into the machine casing to impart needle feed movements, and a second crank on a shaft extending into the machine casing and linked with the means for effecting feed dog adjustment. The pivoted needle bar gate is oscillated by a rock shaft 24 which is connected via a crank 23 to needle feed control mechanism 10 situated externally of the machine frame under the flywheel 42 on the arm shaft 2. Crank 23 is pivoted to a pin 22 on one end of a link 21 pivoted on a pin 18 bridging the arms of a yoke 16. The latter is pivoted by pins 17, 17a to a yoke 15 rigid with a rock shaft 14. Pin 18 is connected by a pitman 20 to an eccentric 19 on shaft 2. The arrangement is thereby such that whn pins 17 and 17a are aligned with pin 22, crank 23 remains stationary on oscillation of yoke 16, and is oscillated with increasing magnitude where pins 17, 17a are progressively moved away from alignment with pin 22 by rotation of shaft 14. The feed dog advance shaft 36 carries a crank 35 converted by a linkage 30, 31, 32, 33, 34 to a crank 28 on a rock shaft 29. Pin 32 is connected by a pitman 39 to an eccentric 38 on the looptaker driving shaft 9. The arrangement is thereby such that when pins 30 and 34 are aligned, crank 35 remains stationary or oscillation of links 31, 33, but is oscillated with increasing magnitude when pin 30 is progressively moved away from alignment with pin 34 by rotation of shaft 29. One arm of a double-armed crank 42 on shaft 29 is connected by a link 41 to a crank 40 on shaft 14. The other arm of crank 42 is connected by a link 43 to one end of a lever 44 rigid with a pivoted shaft 45. The other end of lever 44 is disposed in a cam slot 46a formed in a rotary control disc 46, and is biased by a spring 47, acting on shaft 29, against the outer edge of slot 46a governing the forward feed. Rotation of disc 46 from the zero feed position shown thereby progressively increases the rates of needle and dog feed simultaneously. Shaft 45 may be rotated at any time by a handle 48 to position lever 44 on the inner edge of slot 46a controlling the reverse feed.
Patent GB-1272154-A (GB)
Title: Semiconductor device
Inventor: VALCIK OTO
IPC: H01L29/40
Filed: 1970-06-10
Abstract: 1,272,154. Semi-conductor devices. CKD PRAHA OBOROVY PODNIK. 10 June, 1970 [12 June, 1969], No. 28113/70. Heading H1K. A thyristor including cathode-emitter-shunts 7 uniformly distributed beneath the annular cathode electrode 1 is provided with additional shunts 71 beneath the inner periphery of and partially overlapped by the cathode electrode 1. These shunts 71 are spaced from each other by a distance equal to or less than the mutual spacing of the fully covered shunts 7, and are spaced by 5-100 Ám. from the inner peripheral surfaceemergent portion 8 of the cathode-emitter junction 6, which portion 8 surrounds a central surface-emergent area of the base region 3 where it is contacted by the control electrode 11.
Patent GB-288912-A (GB)
Title: Improved drawing-out needle for use in machines for drawing out threads from tissues
IPC: D05B85/00
Filed: 1927-10-22
Abstract: 288,912. Mischke, K., and Diirkoppwerke Akt.-Ges. Oct. 22, 1927. Openwork effects, producing. -In. a machine for drawing out threads from tissues, the part d having the toothed edges e for engaging the threads to be drawn out is formed with a pricker a having a wedge-shaped rear part b and a. projection c. As the device enters the material the wedge b pushes back the cross threads, and any which may have been pressed down are lifted by the projection c out of the path of the cutter.
Patent GB-208846-A (GB)
Title: Improvements in and relating to sweetmeat coating machines
IPC: A23G3/22
Filed: 1922-10-17
Abstract: 208,846. Sonsthagen, A. Oct. 17, 1922. Coating bakers' and confectioners' goods.-In a confectionery coating machine the coating-material is applied to the bottoms of the cores in a whirling or churning condition produced by the different speeds of the core-carrying conveyer and the roller, disposed beneath the conveyer which applies the bottom coating, the upward pressure of the roller against the conveyer being greater than the weight of the conveyer and the cores thereon. Fig. 1 shows a machine of known type in which the coating-material is raised, by drums and scrapers, from a reservoir 1 to a discharge trough 6, the cores being carried through the coating-stream on a wire-work conveyer 7. The bottoming roller 8, which has a greater peripheral speed than the conveyer 7, is disposed slightly in advance of the coating-stream and is situated so that the conveyer slopes downwardly from the roller 8 to the roller 9. The roller 9 comprises a length of pinion wire which is prevented from sagging by projections 12, on a plate 13, which engage the plain portions 11 of the roller 9. The machine described above may ba used for applying a coating of thin consistency in which case a bottom coating of thicker consistency is applied by a bottoming-roller 17 which is similarly stressed upwardly against the conveyer 18. The material is raised from a jacketed reservoir 14, provided with a stirrer 15, by a roller 16 and applied to the roller 17. The conveyer 18 passes over rollers 20, 21 and a pinion roller 19 similar to the roller 9. A scraper 22 regulates the thickness of the applied coating. The cores are prevented from floating by a pivoted member 23 having a screw-adjusted weight 24a which regulates the pressure applied to the cores. The various parts of the machine are interconnected and driven by chains and chain-wheels and handoperated clutches 33, 42 are provided. An independent supply of coating-material may be applied to the bottoming-roller by a pump, and cleaning- scrapers may be provided.
Patent GB-1203211-A (GB)
Title: Improvements in the formation of layers on silicon
Inventor: WILKES JOHN GEORGE
IPC: H01L21/318
Filed: 1966-08-23
Abstract: 1,203,211. Silicon nitride layer on silicon. ASSOCIATED SEMICONDUCTOR MFRS. Ltd. 14 Nov., 1967 [23 Aug., 1966], No. 28176/66. Heading CIA. [Also in Division H1] A silicon nitride layer is grown on the surface of a silicon substrate by heating the substrate in an ammonia-containing atmosphere at a pressure of at least 20 lb./sq. inch at a temperature above 500‹ C., preferably from 800‹ to 1200‹ C. In one embodiment nested vessels 12 of silica containing the silicon strip 14 are placed in the base 1 of a dried autoclave which is then sealed and connected to a vacuum system by tube 9. After filling with ammonia to the required pressure the autoclave is lowered into a furnace and heated. For temperatures above 800‹ C. a low heat capacity furnace is used such as a resistance furnace, the whole assembly being surrounded by a stainless steel container.
Patent GB-305569-A (GB)
Title: Improvements in poking and stirring apparatus for electric furnaces
IPC: F27B3/10
Filed: 1928-10-02
Abstract: 305,569. Soc. Electro-Metallurgique de Montricher. Feb. 7, 1928, [Convention date]. Furnace details.-A plurality of pneumatic cylinders 1 are arranged symmetrically around the electrode, the piston rod 5 of each cylinder carrying a pinion 7 engaging a stationary rack 8 and a movable rack 9 to which is pivoted a yoke carrying poking and stirring rods 10. The cylinders are mounted on a circular support 2 oscillated by means of a cylinder 18.
Patent GB-425462-A (GB)
Title: Improvements in or relating to atmospheric vapour burners
IPC: F23D11/44
Filed: 1934-10-02
Abstract: 425,462. Atmospheric vapour burners. AKTIEBOLAGET B. A. HJORTH & CO., 31, Klara Norra Kyrkogata, Stockholm. Oct. 2, 1934, No. 28201. Convention date, Nov. 23, 1933. [Class 75 (i)] In a burner in which a needle valve 6 for controlling the vapour inlet 1 to the nipple 5 is provided with a screw-threaded operating spindle 8 carrying a pinion 13 in mesh with a rack 12 on the stem 10 of the cleaning needle 11, the pinion 13 is loosely mounted and a pin 15 on the valve stem 7 projects into a slot 14, or two diametrically disposed slots, in the pinion so that the latter is not rotated for operating the cleaning needle until the valve 6 has been fully opened. Alternatively, the slot, or slots, may be provided in the valve stem 7 and the pin, or two pins, on the pinion. The width of the slot or slots may be increased to correspond with the displacement of the valve 6 before the rack 12 is operated.
Patent GB-960425-A (GB)
Title: High frequency transmission system
IPC: H04J1/20
Filed: 1960-08-16
Abstract: 960,425. Telephone transmission systems. SPENCER - KENNEDY LABORATORIES Inc. Aug. 16, 1960 [March 15, 1960], No. 28433/60. Heading H4R. In a high-frequency transmission system comprising a transmission line which is subject to variations in impedance due to variations in ambient temperature, an amplifier is connected in cascade with the transmission line and a thermistor exposed to the same general temperature conditions as the transmission line is connected in the bias circuit of the amplifier. The thermistor is connected so that the amplifier bias voltage is decreased upon an increase in ambient temperature and the amplifier gain is thereby increased. The gain of pentode 12 (Fig. 1) coupling coaxial lines 20, 24 is controlled by a shielded thermistor 42 located in the vicinity of cable 20. Thermistor 42 varies the gain of pentode 12 by an amount to compensate for change in transmission loss. For television distribution purposes a distributed amplifier is used, comprising a plurality of pentodes interconnected by grid inductances and anode inductances, and the grid bias of all pentodes is controlled by one thermistor only (Fig. 2, not shown). To equalize for overall change in gain and variation of gain with varying frequency under varying temperature conditions, the transmission line is matched by input transformer 110 (Fig. 4) to distributed amplifiers 112, 114 in parallel and notionally represented by triodes. Amplifier 112 has a fixed gain and its output is applied to delay network 146, 148, 150. Thermistor 124 controls the bias and thus the gain of amplifier 114, the output of which is applied to equalizer 130 having a rising gain of approximately 5 db. per octave. The signals from the delay network and from equalizer 130 are combined in coupling means 156. When the temperature of line 154 is low the resistance of thermistor is correspondingly high and amplifier 114 is biased to low gain. The equalizer 130 then has little effect on the combined signal. As the temperature of line 154 rises, the output from amplifier 114 makes a greater contribution to the combined signal, providing a greater overall gain, while the passage of this output through equalizer 130 provides a rising gain with frequency which compensates for greater cable loss at high frequencies. The equalizer 130 may include two thermistors T1, T2 (Fig. 5) exposed to ambient temperatures and which affect its gain/ frequency characteristic mainly at the highfrequency end so that the slope of the characteristic is less in cold weather than in hot weather.
Patent GB-1155283-A (GB)
Title: Improvements relating to Servo Drum Brakes.
IPC: F16D65/56
Filed: 1966-06-24
Abstract: 1,155,283. Servo shoe brake. DAIMLER BENZ A.G. 24 June, 1966 [26 June, 1965], No. 28448/66. Heading F2E. A servo shoe drum brake having a primary and a secondary shoe 11, 12 respectively has a device for reducing the force applied to the secondary shoe, the device comprising a lever 14 adapted to co-operate with a stop 33 on the brake carrier, the lever having a primary arm 15 movable from an inoperative position (shown) determined by the release position of brake to an operative position in engagement with the stop under the influence of circumferential movement of the primary shoe due to braking friction, the lever being rendered ineffective, until the lever is in the operative position, by a resilient member 34 acting between the primary shoe and the lever system. A wear adjuster 19 is provided between the lever and the secondary shoe and its actuation rotates a screw and nut mechanism 24 to adjust the position of the stop 33 accordingly. In a modification (Figs. 2-4, not shown), particularly for the rear wheel brakes of a vehicle, the resilient member acting between the primary shoe and the lever comprises a scissors member associated with a spring, the force on which is varied according to the load on the vehicle.
Patent GB-773130-A (GB)
Title: Improvements relating to thermostats
IPC: G05D23/275
Filed: 1955-10-06
Abstract: 773,130. Heating liquid electrically. FEICHTINGER, H. Oct. 6, 1955 [Nov. 12, 1954], No. 28513/55. Class 39(3) In a system for maintaining constant the temperature of reaction apparatus, measuring apparatus or the like by circulating through or 'around the apparatus a liquid maintained at a constant temperature by a heater and a cooler, the heater comprises a resistance coil 9 wound on and insulated from a copper heat-storing core 10 spaced within a jacket 11 over which the liquid is forced by a pump 6, and heat from the resistance passes in part through the air space 13' to the jacket 11 and passes in part to the core, which is connected through a bridge 12 forming a heat throttle and connected as shown to the jacket 11. The liquid then passes over a control or switching thermometer 15 in a chamber 14 and through a pipe 19 to the reaction apparatus or the like, when it returns through a pipe 21 to a small liquidcontaining vessel 1, to which some liquid also returns directly from the chamber 14 through a pipe 20. The thermometer 15 serves to connect the resistance 9 to the current supply 18 through a relay 16 and switch 17. Cooling liquid is supplied through a pipe 28 to a cooling jacket 22 on the vessel 1 and then flows through a pipe 24 to a level regulating chamber 25, which has an outlet overflow pipe 26. The chamber 25 also has a pipe 27 extending into the vessel 1 and serving as an overflow pipe therefor, at a level lower than the pipe 26. A thin layer of insulation 13 is placed between the heater 9 and core 10. The feed pump 6 is driven through a shaft 5 by a motor 4. Nozzles 23 at the outlets of pipes 20, 21 ensure steady now of water therefrom into the vessel 1.