baber/WOPTO huggingface dataset:
Patent GB-1469670-A (GB)
Title: Control process for an internal combustion engine
IPC: F02D45/00
Filed: 1974-08-01
Abstract: 1469670 Counting apparatus; controlling I.C. engines SOC DES PROCEDES MODERNES D INJECTION SOPROMI 1 Aug 1974 [3 Aug 1973] 34035/74 Heading G4D [Also in Division H3] Apparatus for converting a digital word to a time duration comprises a clock pulse source and three presettable counters set to the digital word and numbers N2 and N3 respectively and connected so that the second counter counts to N2 defining a first interval, the first counter then counts to the digital word defining a second interval, the next clock pulse increments the third counter and resets the first two counters and the process then repeats until the third counter reaches a count of N3. The resulting duration is T.N3 (N2 + digital word) where T is the clock pulse period. With counters 1 and 2 initially reset, a short pulse at E triggers circuit 14,15 and enables gate 19 passing clock pulses to gate 5 which is enabled and hence to counter 2. When the count of N2 is reached the output signal from N2 closes gate 5 and via inverter 8 opens gate 4, passing clock pulses to counter 1. When the contents of counter 1 reaches the digital word input A, gate 4 is closed and a pulse passes via gate 6 to increment counter 3 and reset counters 1 and 2. This opens gate 5 and the cycle repeats. When counter 3 reaches a count of N3, gate 14 switches and gate 19 is closed stopping the flow of clock pulses. A signal at B can be used to prevent clock pulses reaching counter 2 so that the duration is proportional to the digital word. When the digital word varies, the resulting period is an average value thereof. The apparatus may be used for fuel injection or ignition advance in an I.C. engine.
Patent GB-377550-A (GB)
Title: Process and apparatus for the manufacture of double walled flasks and vessels of glass in one operation at the glass furnace
IPC: C03B9/06
Filed: 1931-12-08
Abstract: 377,550. Making double-walled glass vessels. GLASFABRIK SOPHIENHUTTE R. BOCK GES. and HODECKER, W., 1A, Sudstrasse, both in Ilmenau, Thuringia, Germany. Dec. 8, 1931, No. 34061. [Class 56.] Relates to the method of making double-walled glass vessels in one operation by blowing the outer vessel c. Fig. 1, in a mould, and then forming the inner vessel from a mass of hot glass d which is applied to the mouth of the outer vessel and is forced in.. wards and shaped by means of a mandrel or tool a. According to the present invention, the outer vessel and the tool are moved. relatively to one another, not only in the direction of the longitudinal axis of the vessel but also perpendicularly thereto, for the purpose of shaping the inner vessel from the mass of hot glass d. The perpendicular movement enables vessels to be made which are not circular in cross section or which have a body that is relatively wide in proportion to the width of the neck. When the mass of glass d has been forced into the vessel c for a sufficient distance, the tool a or the vessel is moved as shown in Figs. 3 and 4 to shape the inner vessel, and this movement is repeated a number of times as the glass d is pressed lower into the vessel c. The tool need not be in one piece but may consist of two pieces, or two blades h, Fig. 16, which can be moved apart and rotated if desired.
Patent GB-1116598-A (GB)
Title: Improvements relating to phase sensitive detectors
Inventor: BRIGGS JOHN NIGEL
IPC: H03D13/00
Filed: 1964-08-20
Abstract: 1,116,598. Phase discriminators. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 17 Aug., 1965 [20 Aug., 1964], No. 34081/64. Heading H3A. A phase discriminator comprises means for applying an input signal to two parallel branch circuits D 1 , T 1  and D 2 , T 2  of opposite conductivities to which a reference signal is applied to control the conduction therethrough. If the frequencies are different the output is the difference frequency, the capacitor C 2  by-passing carrier frequencies and the filter R 3 , C 3  removing the sum frequency. If the frequencies are the same the output is a direct voltage proportional to the phase difference. In a modification, Fig. 2 (not shown), the input transformer has two secondary windings connected respectively between the ends of R 1  and D 1  and D 2 , the centre tap of R 1  feeding the output circuit C 2 , R 2 .
Patent GB-965842-A (GB)
Title: Snap closure for container
IPC: B65D43/02
Filed: 1962-09-05
Abstract: 965,842. Snap closures. PLASTIC PACKAGING Ltd. Sept. 5, 1962 [Sept. 9, 1961], No. 34104/62. Heading B8T. A closure formed from sheet material for a container 1 has two sealing portions at 12, 5 co-operating with seats on the container and an elastic neck 7 joining the sealing portions which is stressed when in position to hold the sealing portions against the seats. Both the closure and the container are deep vacuum drawn from sheet polystyrol and the container has a roller lip 2 and an annular groove 3 separated by a curved area 4. The closure has an annular collar 13 which fits over the lip 2 and a rib 9 which takes into the groove 3, the resilience of the part 7 maintaining the seals. An additional seal is formed between the wall 1 of the container and a bead 8 in the base of the closure. The collar 13 has sets of clips 14 of different heights engaging the rolled lip 2 to allow for variations in the size of the lip. The rib 9 is of greater diameter than the smallest diameter of the neck 7 to allow stacking of the closures. Parts of the closure may be made thinner to provide flexibility.
Patent GB-906914-A (GB)
Title: Improvements relating to the control of warp tensioning and automatic let off of thewarp in looms
IPC: D03D49/06
Filed: 1959-10-08
Abstract: 906,914. Automatic tension control systems. ZELLWEGER Ltd. Oct. 8, 1959 [Oct. 22, 1958], No. 34167/59. Class 38 (4). [Also in Groups IX and XXIV] The warp tension in a loom is maintained by measuring the tension electrically and controlling the let-off. The warp 2 passes from a beam 1 over a sprung back-rest 5 to the cloth beam 26. The position of the back-rest 5 is indicative of the warp tension and this is detected by either a variable inductance 42 or a variable capacitance, Fig. 4 (not shown), or a differential transformer, Fig. 3 (not shown), or a resistance strain gauge or a piezo-electric crystal. The output of the detector is compared with a reference voltage 34 (or in the case of the differential transformer, the transformer stator is adjusted to give zero output at the desired value of tension) and the error signal is passed to an amplifier 40 (of undisclosed type) via a phase-shift network 30. The amplifier 40 controls the speed and direction of the drive 67 to the warp beam 1. The drive may be obtained from the main motor 29 driving the loom via an epicyclic gear-box 10 controlled by a pair of electromagnetic brakes (see Group XXIV) or the amplifier may supply a separate motor driving the beam. To compensate for the changes in tension due to shedding, a pair of switches 16, 17 cam-actuated in synchronism with the shafts 18 apply over-riding signals from a source 46 to the amplifier 40 to cause the necessary let-off and take-up of the warp beam. A switch (not shown) reduces the value of the reference voltage 34 when the loop is stationary to reduce the standing tension. A further switch enables the warp beam to be controlled manually.
Patent GB-312575-A (GB)
Title: Improvements in or relating to slug casting machines and type-bars cast thereby
IPC: B41B11/52
Filed: 1928-11-22
Abstract: 312,575. Hart, H., (Mergenthaler Linotype Co.). Nov. 22, 1928. Moulds for type-bar-making machines.-Typebars adapted to produce a wide spacing between the printed lines are cast at their ends with projecting spacing-ribs D, Fig. 1, located beyond the ends of the line of characters, so that the typebars, when assembled, are spaced apart, as shown in Fig. 3. The assembled bars are locked against relative endwise movement by the engagement of the ribs D on each bar with notches E formed in the adjacent bar. The ribs D are formed by grooves L<2>, Fig. 4, in one part, preferably the cap portion L, of the mould, and the notches E are formed by tongues M<2>, N<2> on the liners M, N. The blank portions at the ends of the typebar, that carry the ribs D, may be formed by means of blank matrices or quads, assembled at the beginning and end of the line, but are preferably formed by the vice-jaws, which overlap the ends of the mould-slot, and contact, as usual, with the end character-matrices of the line. The right-hand liner M is cut back, so that the mouldslot terminates behind the right-hand vice-jaw. In order to keep the mould of standard length, the left-hand liner N is extended by the same amount, and the left-hand vice-jaw is set farther to the right, so as to overlap the liner.
Patent GB-486406-A (GB)
Title: Improvements in or relating to electric meters of the induction type
IPC: G01R11/36
Filed: 1937-12-13
Abstract: 486,406. Supply meters. SIEMENSSCHUCKERTWERKE AKT.-GES. Dec. 13, 1937, No. 34465. Convention date, Feb. 16. [Class 37] The load-error curve of an induction meter is corrected on the high load end only by arranging one or more displaceable members of high magnetic conductivity over a part of the saturated path and in the neighbourhood of that part of the current magnet shunt which is saturated at high loads, the displaceable members being separated from the main shunt by air or non-magnetic material. In Fig. 1, the current magnet shunt has a restricted part 4 with large ends 1 located in recesses 3 and separated therefrom by air gaps 2, displaceable iron members 6 being located below the return flux loop 5 of the voltage magnet (not shown). At low loads the members 6 have no effect upon the load-error curve but when the part 4 is saturated, movement of the members 6 raises or lowers the curve at the high load end. Where the return loop 5 is omitted the members 6 are constructed as a single part covering a wider area of the shunt path 4. In a further modification, the members 6 are pivoted upon the loop 5. Fig. 4 shows the adjustable member 60 mounted on the return loop 9 by a pin-and-slot 13, 14 and regulated by means of a screw 12.
Patent GB-193592-A (GB)
Title: Improvements in receptacles suitable for receiving goods delivered by tradesmen to householders
IPC: A47G29/20
Filed: 1921-12-22
Abstract: 193,592. Heron, A. H. Dec. 22, 1921. Receiving and delivery devices for doors and the like.-A receptacle for the use of tradesmen, &c., in delivering goods to houses comprises an outer door 2 accessible to the tradesman &c., and an inner door 3 accessible to the householder from within the house, the opening of the door 3 effecting the release of the locking-mechanism of the door 2 which latter, on opening, resets the locking-mechanism so that the outer door is automatically locked on closure. The locking- mechanism comprises a lever 4 pivoted at 5 on the side of the receptacle opposite to that to which the doors are hinged and limited in its movement by stops 7, one end 9 of the lever being of hooked form and adapted to engage a tumbler catch 10 on the door 2 and the other end being weighted at 11 and carrying a pivoted cam 12 movable between stops 14 on the lever. The catch 10 comprises a stationary member 16 and a weighted tumbler 17 pivoted at 18. The inner door 3 carries an arm 19 and on being opened, this arm contacts with the cam 12 and moves the weighted end of the lever 14 upwards thus lowering the hooked end 9 out of engagement with the member 16 of the catch 10 and releasing the door 2, the downward movement, of the lever pushing the tumbler 17 aside until it passes below the tumbler which then swings by gravity above the lever and retains it in the lowered position: the door 3 can then be closed without moving the lever 4 by reason of the pivoted cam 12. The door 2 can now be opened by the tradesman, &c. and articles deposited in the receptacle, the opening of this door disengaging the lever 4 from the tumbler 17 and allowing the lever to rise to its upper position. On closing the door 2, the member 16 engages with the hooked end 9 of the lever and locks the door. The doors mav be provided with latches and the receptacle may comprise two or more compartments each having sets of doors arranged as above while it may be formed by or built into a wall of the house or attached to a door or other fixture.
Patent GB-1474205-A (GB)
Title: Differential amplifiers with gain control means
IPC: H03F3/18
Filed: 1974-08-06
Abstract: 1474205 Gain control of amplifiers SONY CORP 6 Aug 1974 [8 Aug 1973] 34573/74 Heading H3T Gain control of a transistor differential amplifier Q1, Q2 is effected (in response to a control voltage at t3) by a transistor Q3 controlling the common emitter current supply to the amplifier and by a transistor Q5 controlling the bias or signal level at the input terminal, the latter transistor coming into operation at a higher signal level than the former.
Patent GB-839266-A (GB)
Title: Industrial lift trucks
Inventor: ULINSKI BRONISLAUS I
IPC: B66F9/08
Filed: 1957-11-06
Abstract: 839,266. Pistons. YALE & TOWNE MANUFACTURING CO. Nov. 6, 1957, No. 34575/57. Class 122 (1). [Also in Group XXX] Cylinders 25 and 31 of hydraulic rams in the mast assembly of a fork lift truck (see Group XXX) are provided with bushings 34 to centre each piston 18, 32, at one end of its cylinder and, to guide the other end of each piston, a sectional bearing 35 is mounted in a groove near the end of the piston. Studs 36, Fig. 5, hold the sections of each bearing 35 with their ends in spaced relation to permit fluid to flow past the bearing between the end and side surfaces of the piston. Specifications 630,168 and 807,940 are referred to.
Patent GB-919702-A (GB)
Title: Improvements in or relating to the hydrogenation of cyclopentadiene
Inventor: HOLMES PETER DESMOND
IPC: C07C5/05
Filed: 1959-10-13
Abstract: Cyclopentene is obtained by the partial hydrogenation of cyclopentadiene in the presence of a supported nickel catalyst containing less than 20% by weight of nickel. Suitable supports are sepiolite, calcium, barium, strontium or magnesium oxide or carbonate, diatomaceous earth or fire brick derived therefrom, charcoal, graphite, pumice or thermally or steam deactivated alumina. The temperature may be 20-200 DEG C., pressure 0-500 p.s.i.g. and the cyclopentadiene space velocity 0.1-5 vol./vol./hr.  A diluent, e.g. n-heptane, may be added.  The amount of hydrogen added may be in the range 0.5-1.8 mols per mol of cyclopentadiene.
Patent GB-301656-A (GB)
Title: An improved electrode for a microphone
IPC: H04R21/02
Filed: 1927-12-22
Abstract: 301,656. Siemens Bros. & Co., Ltd., and Button, G. F. Dec. 22, 1927. Microphones.- An electrode for a microphone is formed by mixing finely divided carbon with a carbonaceous binder to form a stiff paste which is then formed into the requisite shape and a coating of carbo or anthracite granules applied to the surface thereof, the electrode being subsequently baked. I
Patent GB-619169-A (GB)
Title: Improvements relating to the control of aircraft
IPC: B64C3/54
Filed: 1946-11-23
Abstract: 619,169. Controlling aircraft. WILLIAMS, D. Nov. 23, 1946, No. 34814. [Class 4] In order to eliminate reversed aileron control effect, a wing is provided with a pair of ailerons, one inboard of the other, the wing and ailerons being of such aerodynamic and structural characteristics that throughout the speed range of the aircraft the combined effect in roll of actuation of the two ailerons bears an orthodox relation to the actuation of the pilot's control member. In the form shown in Fig. 1, the transmission for the outboard aileron 1 includes a reversing pinion 8, so that the ailerons move in opposite directions, the reversed control effect at low speeds of the aileron 1 being insufficient to overcome the orthodox effect of the inboard aileron 2. Owing to the greater flexibility of the wing tip the reversal speed for the aileron 1 is less than that for the aileron 2, so that as the speed increases above this value the combined effects of the two ailerons results in an orthodox control. Fig. 3 shows a construction in which the outboard aileron 1 is locked in its neutral position by a brake 13 at low speeds, but when the reversal speed is reached the brake is released by a pitot or other speed-responsive device and the shaft 12 is coupled by a clutch 14 to a shaft 15 geared to the shaft 4 controlling the inboard aileron 2. In the further form according to Fig. 4, the inboard and outboard ailerons operate together throughout the lower speed range, but at the reversal speed for the outboard aileron 1 clutches 21, 22 in the transmission shafts 20, 25 are respectively disengaged and engaged to give a reversed drive to the aileron 1. At the reversal speed of the inboard aileron 2 the direction of rotation of the shaft 34 is reversed by a gear-box 28, the clutch 22 being disengaged and the clutch 21 re-engaged so that at higher speeds the relationship of movement of both ailerons to the pilot's control member is unorthodox.
Patent GB-155258-A (GB)
Title: Improvements in or relating to steam turbine driven locomotives
IPC: F01B17/04
Filed: 1920-12-10
Abstract: 155,258. Boltshauser, H. Dec. 15, 1919, [Convention date]. Railway l o c o - motives, steam.- The forward and reverse distributing- valves of a locomotive driven bv a turbine and employi n g superheated steam are carried in a casing joined immediately to the header of the superheater. As shown, the casing 6 containing the valves 7, 8 is outside the smoke box and is connected to the header 3 by a short pipe 5. In a modification the casing is contained within the smoke-box and projects forwardly from the header, the valves being operated by transverse shafts through bevel-gearing.
Patent GB-1432843-A (GB)
Title: Tongs
IPC: B25B27/14
Filed: 1973-07-23
Abstract: 1432843 Jointing by stamping; shearing R ROMMEL 23 July 1973 [4 April 1973] 35050/73 Headings B3Q and B3W Tongs for pressing, perforating or cutting operations having one jaw slidable rectilinearly in guides towards another jaw are constructed from at least three superimposed plates which define the guides and a cavity containing means for driving the movable jaw. In an embodiment, Figs 3 and 6, there are two outer plates 1, two spacing plates 2 and a central plate 3 having a handle 5. The plates may be made by cutting, punching or casting. The slidable jaw consists of a plate 28 on each side of a toggle link 16 which is pivoted to the plates and to a pair of toggle links 22 also pivoted to the outer plates 1. An extension 17 on the link 16 carries a second handle 5 for operating the toggle, and a slot (8), Fig. 2 (not shown), in each plate 1 providing guides for pins 27, 31 passing through the slide 28. The slide is biased to the open position by a spring-pressed pin 35 engaging the slide 28 or a die thereon, and by a volute spring (not shown) on a pin 24. A pivotal peg 13 biased by a spring 14 engages teeth on the end 21 of the link 16 to form a full-stroke mechanism. Crimping dies (50, 51), Fig. 7 (not shown), for indenting one or two (Fig. 2) zones of a terminal (Fig. 1) are releasably carried by the jaws. The fixed die (50) has a recess 52 to pass a bolt 32 and lateral projections (54) entering openings 6 in the plates 1, a similar recess (53) and projections (44) on the movable die (51) co-operate respectively with the pin 31 and the front edges of the slide plates 28 which have projections 55 for retaining the die; the fixed die (50) is retained by tightening the bolt 32. Instead of a fixed die an indexable turret-die 39, Fig. 8 (not shown), may be used. In another form, Fig. 9, the slide 28 is moved by a cam 60 which is turned by a ratchet lever 64 engageable over the end of the cam-shaft. The handle 5 may be detached from the centre plate 3 to allow the apparatus to be mounted on a drive unit 75, Fig. 16, including an electromotor for driving the cam-shaft through a reduction gear. A time switch can stop the apparatus after each cycle and a counter may record the cycles. Alternatively a flexible drive shaft may be used between the unit 75 and the cam-shaft.
Patent GB-1442243-A (GB)
Title: Synchronizing ring
IPC: F16D23/02
Filed: 1974-08-08
Abstract: 1442243 Positive clutches NISSAN MOTOR CO Ltd 8 Aug 1974 [21 Aug 1973] 35084/74 Heading F2C  A synchronizing ring 10 for a split-ring synchronized positive clutch of a change speed gear comprises at least one groove 18 in the inner circumference thereof to adjust the synchronizing capacity thereof. The groove may have a semicircular, rectangular or V-shaped crosssection. The groove may extend along part of or the entire inner circumference of the ring, alternatively a plurality of circumferentially spaced grooves may be provided in the inner circumference. Expansion of the ring may be assisted by the usual spreader bonds.
Patent GB-1361466-A (GB)
Title: Ratchet screwdrivers
IPC: B25B15/04
Filed: 1972-06-23
Abstract: 1361466 Ratchet screwdrivers JAMES NEILL HOLDINGS Ltd 23 June 1972 [27 July 1971] 35085/71 Heading B3N A ratchet screwdriver comprises a handle 2, a body 11 housing a ratchet mechanism, a screwdriver blade 3, a slider 6 for reversing and locking the ratchet mechanism extending through a slot 7 in one side of the handle, a groove 10 extending along a hole 5 in the handle from the slot to the open end of the hole, and a plug for closing the open end of the hole and the adjoining end of the groove, with the screwdriver blade projecting through a bore therein. The groove 10 may emerge in a peripheral recess or counterbore at the open end of hole 5, the plug fitting tightly in the recess or counterbore. Alternatively, the plug has a spigot 15 fitting inside a socket in the adjacent end of the body 11. The plug may be a tight push fit or be secured by adhesive. Slider 6 has ribs 9 for engagement with notches 8 in the sides of the slot. The handle and plug may be formed from plastics.
Patent GB-473936-A (GB)
Title: Improvements in or relating to loudspeakers
IPC: H04R9/04
Filed: 1936-12-22
Abstract: 473,936. Loud-speakers. GENERAL ELECTRIC CO., Ltd., JONES, A., and LITTLEMORE, S. Dec. 22, 1936, No. 35175. [Class 40 (iv)] In a method of assembly of a moving - coil loud - speaker having a former for the coil supported by a spider attached to the magnetic surround for the coil and directly associated with the former, the spider is threaded on to the coil former so that it abuts against a ridge pressed out of the former in the form of a complete annulus and the end of the conical diaphragm is then threaded on to the coil former so that it abuts against the spider and is then glued into position. The ridge 3 on the paper former 2 is produced by the use of a jig with an annular groove and a rubber ring inserted within the former and expanded by means of a press tool. After the spider 4 and diaphragm 5 have been threaded on the former, the diaphragm is secured by gluing. The diaphragm is formed from a single sheet of paper and the joint 6 at the abutting edges is effected by heating under pressure a thin sheet of silk impregnated with a solution of rubber, guttapercha or balata. The magnet system comprises a rectangular permanent magnet 16 clamped to a poleplate 9 by screws 11 and a magnetic plate 12 carrying the centre polepiece 13. The leads 17 to the coil are connected to terminals 14 on a plate 15 secured to the housing 7. The surround 8 may be attached to the diaphragm 5 by a joint similar to that described in connection with the production of the diaphragm.
Patent GB-450311-A (GB)
Title: Improvements in textile yarns and fabrics and the production thereof
IPC: D02G3/28
Filed: 1934-12-07
Abstract: 450,311. Sizing yarns. DREYFUS, H., 22, Hanover Square, London. Dec. 7, 1934, No. 35188. [Class 140] [See also Group IX] The twist in crepe yarn is fixed by passage of the yarn during twisting through a sizing chamber 15, adjustably fed through a valve 20 from a reservoir 18, and a drier 21.