baber/WOPTO huggingface dataset:
Patent GB-459100-A (GB)
Title: Improvements in and relating to coupling and steering mechanisms for trailers of motor vehicles
IPC: A44B9/10
Filed: 1936-05-04
Abstract: 459,100. Tractor - - trailer coupling and steering mechanism. AGAHD, W., 213, Kurfurstendamm, Berlin. May 4, 1936, No. 12552. Convention date, May 3, 1935. [Class 103 (v)] . Coupling and steering mech. anism for trailers of motor vehicles comprises links e, f. g arranged in the form of a trapezium, the broad base g being in the form of a bar pivoted at its middle point h to the trailer l. The links e f, are jointed to the ends oi the bar and to pivot bolts b, c, provided at the ends of the small base of the trapezium situated on the tractor a at the rear of the rear axle the line connecting the bolts b, c, being substantially par allel to the rear axle of the tractor. A link k is connected to the bar g and to the steering mechanism of the trailer. The link k may be connected with the bogie or truck of the trailer &c.
Patent GB-1464681-A (GB)
Title: Methods of crystal collection
IPC: B01D9/00
Filed: 1975-03-26
Abstract: 1464681 Freeze refining C C ADAMS 26 March 1975 [7 June 1974] 12571/75 Heading B1G A method of freeze refining comprises rotating a cooled shaft in a liquid melt of impure material to deposit onto the rotating shaft pure material, along with traces of impurities, in a substantially crystalline form, the crystalline deposit taking place by grain growth in a radial direction. Discrete heterogeneous crystals of substantially pure material are formed having grain boundaries of substantially impure material, and the crystalline material is removed from the shaft while maintaining substantially the integrity of the crystal formation. This removal can be accomplished by rotating the shaft, preferably after heating the solid on the shaft, at sufficient speed to cause the solid material to separate along some of the grain boundaries. The size and purity of the crystals produced on the cooled shaft can be varied by control of the rate of growth. The purity of the product crystals can be further improved by washing the solid with the melt e.g. in apparatus as shown in Fig. 5 where the cooled shaft. S rotates in the melt M contained in vessel 10 to produce solid material P which when broken by centrifugal force comprises pieces 16a, 16b, 19a and 19b. These pieces can be further. compacted by means of vibrator 17 and purified by washing with melt in the lower part 10b of the vessel.
Patent GB-255981-A (GB)
Title: Improvements in and relating to dynamo electric machines
IPC: H02K9/16
Filed: 1925-05-14
Abstract: 255,981. British Thomson-Houston Co., Ltd., and Pollock, A. A. May 14, 1925. Dynamos and motors, cooling.- A dynamo electric machine has a main casing, such as 3, Fig. 1, through which the magnetic part 4 of the frame projects into a space 5 between the main casing and a similarly shaped outer casing 6, cooling air being passed axially through this space, for instance by means of a fan 13. The inner casing and end plates may be ribbed internally or externally and the field coils 12 are pressed closely against the inner casing through which their heat is coducted to the air space 5. The upper and lower parts of Fig. 2 show sections respectively on the lines A B, C D of Fig. 1. The field system is made of stampings 4 which are slotted at their outer edges at 7 so that part of their idle magnetic material is removed and the remainder is used as a heat conductor. In the form shown, the casing 3, which may be of aluminium or other light weight metal, is ribbed only on its outer surface and the end plate 10 is ribbed internally and externally at 11. The fan 13 is enclosed by a bell-shaped cap 14 forming an intake from the space 5. When the machine is a generator driven by an internal combustion engine, the radiator cooling fan may be used for drawing the air through the space 5. Specification 18087/12 is referred to.
Patent GB-500277-A (GB)
Title: New and useful improvements in yarn packaging
IPC: B65H54/28
Filed: 1937-05-03
Abstract: 500,277. Winding bobbins. BRITISH CELANESE, Ltd. May 3, 1937, No. 12586. Void. Convention date, May 1, 1936. [Class 120 (ii)] Yarn is made into a crosswound package by feeding it to a rotating support through a guide that reciprocates in a direction parallel to the axis of rotation of the package with a velocity that is greater at the end portions of its stroke than at the central portion so as to form a substantially cylindrical package without hard ends. As shown, the guide is reciprocated by a cam I which has two cam grooves 6, 7 for use in a machine having two banks of winding and twisting devices, the groove 7 being 90‹ out of phase with the groove 6 so as to reduce vibration; the grooves are of constant pitch for about three-quarters of the traverse and increase for about one-eighth of the traverse at each end. 'A balance weight 11 may be incorporated in the cam by thickening the rim. Specification 455,396 is referred to.
Patent GB-400677-A (GB)
Title: Improvements in or relating to hydraulic or liquid pressure control systems
IPC: F15B7/10
Filed: 1932-05-02
Abstract: 400,677. Hydraulic transmission of power. LOCKHEED HYDRAULIC BRAKE CO., Ltd. and BOUGHTON, E. B., Brock House, Langham Street, London. May 2, 1932, No. 12616. [Class 69 (ii).] A hydraulic transmission system having operating and operated members 11, 15, each connected with a double-acting piston or equivalent, and two connecting lines 20, 22, has two reservoirs 25, 26, each connected to its pipe line through pressure release and inlet valves. Spring-loaded or weighted plungers 31 or connections to elevated reservoirs may be provided. Releasable catches are preferably provided for retaining the members 11, 15 in position.
Patent GB-101418-A (GB)
Title: Flexible Tubes and Methods and Apparatus for Making same.
Inventor: BRINKMAN LOUIS HERMAN
IPC: B21C37/12
Filed: 1916-09-06
Abstract: 101,418. Brinkman, L. H. Sept. 7, 1915, [Convention date]. Cased forms; tubes.-In apparatus for making flexible tubes from a strip or ribbon of metal, the strip is given a longitudinal fold or groove and is helically wound into the form of a tube with the edges of adjacent convolutions interfolded into a positive locking engagement. The apparatus for making the tube comprises a rotary spindle B, Fig. 1, formed in one with a screw-rod E, and a die F which co-operates with the screw-thread 28' of the rod to form the strip into a tube. The die F, Fig. 6, consists of an outer metal casing 29, a metal bushing 81, and the die proper 30 having tube-forming threads 38, 39, 40, non-forming threads 35, 36, 37, and unthreaded clearances 78, 79. The strip of metal passes to the rod E through a preliminary former 45<1>, Figs. 3 and 5, which forms the fold or groove 44 and also bends over the edge 46, and thence through an opening 43 in the casing 29. The strip is frictionally gripped by the screw-thread 28<1> and is carried round with it, the die F at the same time receiving a longitudinal movement. As the strip first enters the die, the groove 44 coincides with the top of the thread 40, and the sides 47, 48 of the strip lie against the walls of the thread. The strip then passes through the tube-forming threads 38, 39, 40, which are shaped so as gradually to interfold the edges of adjacent convolutions and bend them into a final condition, indicated at 58, Fig. 7. When the die F has reached the limit of its tube-forming movement, the direction of rotation of the rod E is automatically reversed, thus releasing the frictional grip between the strip and the threads 28<1>, and allowing the die F and the portion of the tube already formed to move back to its initial position to recommence a second tube-forming movement. The reversing is effected by means of a longitudinallymoving nut G operating, through links 25, levers 17, and forks 10, a clutch C splined on the spindle B to engage between oppositely rotating pulleys 3, 4. After passing through the forming-die, the tube is pressed by means of rollers 60, 61, Fig. 3. The longitudinal section of the completed tube mav be that as formed bv the die and as shown at 59, Fig. 7, or, by applying endlong pressure, the walls of the groove 44 may be reflexed and the completed tube have a section as shown at 96. The tube mav be reinforced by a wire wound inside the tube between the convolutions, and the seam 58 may be externally corrugated. Other longitudinal sectional shapes of completed tubes are shown in Figs. 8, 9, and 10. The Specification as open to inspection under Section 91 (3) (a) also comprises modifications in which the pressure rollers 60. 61 are arranged to crimp the seam 58 and in which the tube may be formed from a laminated strip comprising two brass strips and a central steel strip of smaller width than the brass strips, so that it does not extend to the seam. This subject-matter does not appear in the Specification as accepted.
Patent GB-113917-A (GB)
Title: Improvements in Feeding-bottle Holders.
Inventor: SMART FRANK CHARLES
IPC: A61J9/06
Filed: 1917-09-04
Abstract: 113,917. Smart, F. C. Sept. 4, 1917. Feeding-bottles, holders for.-A feeding-bottle holder adapted to be secured to a perambulator or cot consists of a wire frame B bent to a suitable shape to receive the bottle and having rubber or other resilient bands D, E to engage the ends of the bottle. The holder has a hook A to engage the side of a cradle, &c., and is formed with feet C at the end of each arm B.
Patent GB-474684-A (GB)
Title: Improvements in or relating to radio receivers
IPC: H04N5/60
Filed: 1936-05-04
Abstract: 474,684. Wireless receiving circuits; thermionic valves. BAIRD TELEVISION, Ltd., and MERDLER, L. R. May 4, 1936, No. 12634. [Classes 39 (i) and 40 (v)] In a superheterodyne radio receiver for receiving a plurality of signals, e.g. sound and television, the incoming modulated carrier waves are applied to the grids of a plurality of valves and local oscillations to other grids of the valves and a circuit tuned to a frequency derived from one of the several carrier frequencies is connected to the anode of each of the valves. As shown, the valves are in a common envelope, while the local oscillator may be in the same envelope and consist of a triode-hexode valve with a divided anode. An input filter 2 is preferably provided to remove frequencies of the order of the intermediate frequencies to which the circuits 5, 6 are tuned. Specifications 392,456 and 444,774 are referred to.
Patent GB-978336-A (GB)
Title: A control mechanism for producing timed rotational movements
IPC: B66C1/66
Filed: 1962-06-19
Abstract: 978,336. Toothed gearing. ALLIED CHEMICAL CORPORATION. June 19, 1962 [July 17, 1961], No. 12722/64. Drawings to Specification Divided out of 978,335. Heading F2Q. The subject-matter of this Specification is substantially the same as that described in Specification 978,335, from which the present Application is divided, but the claims are concerned with the control mechanism.
Patent GB-243988-A (GB)
Title: Improvements in or relating to rotary printing presses
IPC: B41F13/00
Filed: 1925-05-15
Abstract: 243,988. Schwarz-Presse Akt.-Ges. March 9, 1925, [Convention date]. Rotary machines; tripping - arrangements. - A stop - cylinder rotary machine is constructed with a clutch drive for the impression cylinder, and in connection with the operating-lever for the clutch is a safety device which prevents the clutch from being operated except when the impression cylinder is in the normal position of rest. The impression cylinder 17 is driven by mutilated gearing 30, 16 from the plate cylinder 29, and projections 25 co-operate to start the cylinder 17 after its period of rest. The cylinder is held in its position of rest by a spring-pressed pin 14 with a ball engaging a recess in the axle 24 of the cylinder. The motion of the gear 16 is transmitted to the axle 24 by a clutch 1 splined to the axle 24 adapted to engage a clutch face 22 in the wheel 16. The clutch is operated by a U-shaped lever 21 with rollers 3 engaging a groove 26 in the clutch. The lever 21 is connected by a pin 11 to a hook 6 with an extension 19 which normally engages in an annular recess 20 in a disc 7 fixed to the axle 24. The pin 11 is embraced by a slot 5 of a lever 10 pivoted at 9, and the leverc 10 is used to operate the lever 21 to throw the clutch 1 in and out. Owing to the engagement of hook 6 in the recess 20 the clutch can be thrown out until an opening 8 allows the extension 19 of the hook 6 to be moved in the direction of the arrow 27, and the lever 10 can then operate lever 21 to actuate the clutch.
Patent GB-1048745-A (GB)
Title: Improvements in or relating to starter switches for electric motors
Inventor: ALLEN JAMES CECIL
IPC: H02P1/32
Filed: 1964-03-26
Abstract: 1,048,745. Electromagnetic switches; pneumatic actuation of switches. BIRMINGHAM SMALL ARMS CO. Ltd. March 25, 1965 [March 26, 1964], No. 12790/64. Heading H2B. A star-delta starter comprises a fixed contact block 1 with two movable contact blocks 6, 7, on opposite sides thereof, the blocks 6, 7 being either rigidly or resiliently connected together such that they may only independently contact the fixed contact block when moved pneumatically, hydraulically or electro-magnetically. The electric motor is connected in star circuit (Fig. 6, not shown) when " star block" 7 contacts block 1 (Figs. 3, 4, not shown), and in delta circuit (Fig. 7, not shown) when " delta block" 6 contacts block 1 (Figs. 1, 2, not shown). Bars 9 rigidly connect blocks 6, (Fig. 5, not shown), or springs 34 provide a resilient connection, Fig. 9. The energizing of a solenoid 24 raises a weight 35, and thereby a lever 37 moves block 7 against the springs 34 to contact the block 1. A timing device 29 (Fig. 8, not shown) eventually de-energizes solenoid 24 and energizes a solenoid 25 to raise a weight 36 and cause a lever 38 to move block 6 to contact the block 1. With both solenoids de-energized springs 34 hold blocks 6, 7 away from block 1.
Patent GB-1357456-A (GB)
Title: Doppler radar system
IPC: G01S13/56
Filed: 1972-03-20
Abstract: 1357456 Radar MULLARD Ltd 23 Feb 1973 [20 March 1972] 12811/72 Heading H4D [Also in Division G4] In a Doppler-effect radar utilizing phasequadrature Doppler beat frequency channels affording target speed and sense of direction, a phase detector is responsive for each cycle of the two beat frequency signals to produce a first output when their relative phasing is within specified limits and a second output when it has shifted outside those limits, and a speed indication is inhibited for a predetermined period when either one of the first and second outputs is produced and to maintain the inhibiting condition for a further such period if the other output is produced within the predetermined period. The invention reduces the effects of noise, particularly circuit noise; and by selection of the period for determining whether or not inhibition is to take place a fluttering curtain does not produce a false alarm in an intruder detection system. The phase detector may be a D-type bi-stable, the inputs to which are squarewave pulses developed, by Schmitt triggers, from the Doppler beat frequency channel outputs; the bi-stable produces a first output signal when the relative phase of two square-wave pulses is within Œ90 degrees and a second output signal when beyond that range. The inhibit circuit comprises a diode bridge, fed from both outputs of the phase detector, coupled to a transistor circuit.
Patent GB-719418-A (GB)
Title: Improvements in or relating to a pulse delaying circuit
IPC: H03K5/13
Filed: 1952-05-21
Abstract: 719,418. Pulse delaying circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. May 21, 1952 [July 30, 1951], No. 12835/52. Class 40 (6) Fig. 1 shows a pulse delaying circuit in which a pulse to be delayed shown at 1 in Fig. 2 is applied at an input 10 and a train of regularly recurring synchronizing pulses 2, Fig. 2, are applied at an input 11. Normally the left-hand section of valve 17 is non-conductive and since junction points 34, 35 are both normally held at a negative potential with respect to earth the latter by the application of the clamping voltage 4, Fig. 2, applied at terminal 30 and the resultant charge on capacitor 37, the right-hand section of valve 17 also has a very low conductivity. When positive pulses are present simultaneously at inputs 10 and 11 the left-hand section of valve 17 conducts, the anode potential falls, curve 3, Fig. 2, and capacitor 31 is discharged . At the approximate time when the synchronizing pulse of curve 2, Fig. 2, ends, a positive pulse passes through capacitor 31 and rectifier 26 from the anode 19 and charges capacitor 37. The right-hand section of valve 17 thus considerably increases its conductivity so that a positive output pulse curve 5, Fig. 2, appears across cathode load resistor 41 at output terminal 42 and is maintained until the next clamping pulse, curve 4, Fig. 2, is applied, or an output may be taken from terminal 35. Thus an input pulse appearing in any time interval, e.g. T1-T2 causes an output pulse to be produced in the succeeding time interval.
Patent GB-1151969-A (GB)
Title: Improvements relating to Filtration
Inventor: LAUDER DAVID REID
IPC: B01D29/00
Filed: 1967-03-20
Abstract: 1,151,969. Filter for hydraulic circuit. ENGLISH ELECTRIC CO. Ltd. 29 Dec., 1967 [20 March, 1967], No. 12863/67. Heading BID. [Also in Division F2] A filter, in a hydraulic circuit in which the direction of flow is sometimes reversed, comprises filter elements (14) located' in individual housings 12 which extend from a distributor casing, having an inlet chamber 6 and outlet chamber 8. from which ports 16, 18 open into the housings, and a system of valves which insure that flow through elements (14) is always inwards whether passage 2 or passage 4 is temporarily serving as the inlet to the casing. In Fig. 1, ball 34 engages either of seats 40, 42, in chamber 6, and a spool valve 28, 30, 32 closes either end of chamber 8. Reversal of flow shifts the valves to their other positions, valve 28-32 being moved by pressure applied through passages 38, 46. Each filter housing may incorporate a non-return valve (22), and a by-pass valve combined with an indicator of the valve's position is connected between chambers 6, 8 (Fig. 3, not shown). In Fig. 4 (now shown) valve 28-32 is replaced by two separate non-return valves, and the casing is divided laterally so that additional sections (94), incorporating continuations of chambers 6, 8 and carrying additional filter housing(s), may be inserted between the end sections. Ball valve 34 may also be replaced by two separate non-return valves.
Patent GB-743082-A (GB)
Title: Improvements in or relating to mountings for abrasive discs
Inventor: GUBBINS CHARLES HENRY
IPC: B24B45/00
Filed: 1953-05-08
Abstract: 743,082. Securing discs on shafts. WOLF ELECTRIC TOOLS, Ltd. May 8,1953, No. 12900/53. Class 80(2) [Also in Group XXIII] An abrasive disc 11 is mounted on the driven shaft 10 of a grinding machine by an element 12 of resilient material, e.g. hardened or toughened rubber; incorporated in the element 12, e.g. during moulding, is a flange 14 of a member having a boss 13 threaded internally to cooperate with a thread on the shaft 10 and threaded externally to receive a flanged nut 15 projecting through a central aperture in the disc, so that the disc 11 is held between the element 12 and nut 15. The boss 13 may be formed without an external thread, the nut 15 then engaging the shaft 10; to permit this, the boss 13 is disposed on the side of the flange 14 remote from the disc 11.
Patent GB-659867-A (GB)
Title: Improvements in the sails of yachts and boats and the like
IPC: B63H9/06
Filed: 1949-05-14
Abstract: 659,867. Sails. McGRUER, E. May 14, 1949, No. 12916. [Class 115] A double sail of the type shown in Specification 212,665, [Class 115], has its leading edge c formed on a rigid frame capable of rotating on or with the mast a. Specification 4704/15, [Class 115], also is referred to.
Patent GB-674467-A (GB)
Title: Improvements in or relating to thermionic valve circuit arrangements
Inventor: COOPER VICTOR JAMES
IPC: H03F3/44
Filed: 1950-05-23
Abstract: 674,467. Mixing circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Jan. 25, 1951 [May 23, 1950], No. 12930/50. Class 40 (iv). [Also in Group XL (c)] An arrangement for additively combining two signals comprises a pair of valves with their anode-cathode paths connected in series, the anode of each valve being cross-connected to the grid of the other over impedances Z1, Z5 and Z2, Z3 respectively. The two inputs are applied to the respective control grids, while the output is taken from between the cathodes of the valves. In simplified embodiments, Figs. 2, 3 (not shown), feedback between the anode of one of the valves and the grid of the other is not provided, the impedances Z1, Z5 or Z2, Z3 being omitted. The arrangement may also be utilized as a modulating or gating circuit.
Patent GB-131929-A (GB)
IPC: B60B7/00
Abstract: 131,929. Lean, C. March 16, 1917. Mud-guards rotating with wheels.-A sidesplash guard comprises a pneumatic tyre, preferably only slightly inflated, mounted at the side of the main tyre-carrying rim so as to be in contact with the ground without supporting any appreciable part of the load. The guard-tyre may be mounted resiliently or revolubly, or both, and may be fitted on its outer side with an annular guard to arrest any splashes due to the guardtyre itself. Further, the rim-extension or other device carrying the guard-tyre may be fitted with a closing disk on one or both sides. In the form shown in Figs. 1 and 2, the guard-tyre 4, formed with an inclined tread-rib 20 is carried by a ring 11 (closed on its outer face by a disk 19) which is held in position at the side of the main rim 1 by tension-springs 5. These are arranged in pairs with their ends connected to plates 7 on radial bolts 12 carried by the rim 1, and plates 6 bolted to the ring 11. In the modification shown in Figs. 6 and 7, the guard-tyre 38 is carried by a ring 320 bolted to the main rim 31, and, as shown in Fig. 6, restrained by side flanges 36, 37 secured respectively to the parts 320, 31. Fig. 7 shows a smaller guard-tyre fitted when the main tyre 32 is partially worn, the dotted lines 40 (Fig. 6), 45 (Fig. 7) indicating still further adjustments to meet the reduced size of the main tyre. The flange 43, Fig. 7, is shown fitted with an auxiliary guard 60 of ordinary construction. In the further modification shown in Fig. 8, the guard-tyre 58 is carried by a ring enclosed by a disk 55, which is connected by springs 53 to a ring 52 rotatably mounted on a grooved collar 51 on the hub 50. The disk 55 is fitted with a central spring closure-cap 56 to provide access to the nut 49 for assembly &c. of the guard.
Patent GB-131978-A (GB)
IPC: H02K23/66
Abstract: 131,978. Smith, W. R. July 25, 1918. Dynamos, regulating; exciting.- In constantpotential variable-speed dynamos, the field is regulated by a coil f which superimposes on the main magnetic circuit through the yoke of the fieldmagnets a closed magnetic circuit which has its path through a part of the yoke that carries the main circuit, the regulating-coil acting by varying the reluctance of the main magnetic circuit up to speeds at which the secondary or regulating magnetic path becomes saturated, and at higher speeds by the regulating-flux passing through the main magnetic circuit. In the arrangement shown, the dynamo is shunt-wound and the coil f is placed in series with the outside terminals g<1>, g<2>. The coil f is preferably arranged outside the casing c to facilitate its cooling.