baber/WOPTO huggingface dataset:
Patent GB-614297-A (GB)
Title: Improvements in or relating to suction cleaners
IPC: A47L9/10
Filed: 1946-07-12
Abstract: 614,297. Suction cleaners. HOOVER, Ltd., BELL, W. C., and PRESS, R. H. H. July 12, 1946, No. 20897. [Classes 8 (i) and 8 (ii)] In a suction cleaner of the type comprising a casing A, Fig. 1, containing a motordriven fan C and affording a main nozzle A<1> adapted to be manoeuvred by a handle E pivoted at F<1>, and including a preliminary separating chamber D and a final chamber supported by or in the handle E and also having a conduit connection F with the fan outlet, the final filter is cleaned by a relatively movable filter cleaning nozzle exhausting back to the chamber D. As shown, the handle E is hollow with side outlet openings and supports an air-permeable fabric filter sleeve on the inner surface of which rests a starsectioned nozzle G having an elongated slot G<1>, Fig. 3, with rounded lips G<2>. The nozzle is continuously open to the fan inlet by a tube H, a port H<1>, a passageway H<3> and a port H<4>. The whole of the final filter surface is cleaned in turn by rotation of the nozzle about the filter axis either manually by an end grip E3 or automatically as the handle E is rocked about its pivot F<1>. To this latter end the nozzle G is formed with a ratchet G<3> which is engaged by a pawl J<1> carried by an arm J<2> on a rocking shaft J carrying an arm J3 connected by a link J<4> to a. pivot on the casing. The slot G<1> may be annular or circumferential and a valve between the fan and the main nozzle A<1> may cut out the latter during the filter cleaning operation. In a modification, the cleaner has a transverse fan and motor movable with the handle relative to the casing. Specification 568,242 is referred to.
Patent GB-520178-A (GB)
Title: Improvements in or relating to apparatus for feeding cut tobacco
IPC: A24C5/39
Filed: 1938-07-14
Abstract: 520,178. Tobacco-feeding mechanism. MOLINS, D. W., RUAU, F. F., and MOLINS MACHINE CO., Ltd. July 14, 1938, Nos. 20899, 21067 and 26027. [Class 130] In a cigarette-making or other machine in which cut tobacco is fed by a carded endless conveyer or roller 4, surplus tobacco is separated from the conveyer or roller by a blade 6 adjacent to the carding of the conveyer and having an uneven or toothed tobaccoengaging edge which is opposed to the direction of movement of the conveyer and is given a relative movement in a direction transverse to the direction of movement of the conveyer. As shown, tobacco in a hopper 1 is conveyed to the roller 4 by a smooth roller 2 having retractable pins 3. The blade 6 has square teeth 9, Fig. 5, chamfered at the edges and bent as shown by the chain line 600, and is reciprocated endwise upon a support 7 by means shown in Fig. 3. The blade is clamped to flexible straps 104 fixed at 38 to levers 39 pivoted at 40 and connected by tensioned straps 43, each lever 39 being oscillated from an eccentric 49 through a rod 47 universally jointed to an arm 46 on the lever. Surplus tobacco separated by the blade 6 is guided by the member 8, on which slides a tamper 13. In front of the blade 6 is a presser element 10 of ovate or circular section, carried by pivoted arms 11 and resting freely on the tobacco, and a trimming roller 17 having inclined pins 18 and rotating in the direction indicated by the arrow in Fig. 1. , The tobacco on the roller 4 may be removed by a picker roller 50 and thrown by a vaned winnowing roller 52 on to a carded roller 54, from which it is removed by a picker roller 56 and discharged through a chute 140 on to a band 150 or a web of cigarette paper. The various rollers &c. are driven from a motor by chain, belt &c. gearing described in the Specification. In a modification, Fig. 4, the tobacco-engaging edge 9 is integral with the guide 8, which is secured to an angle piece 113 reciprocated in the same manner as the blade 6, Fig. 3. In a further modification, Fig. 6, a toothed roller 210 in front of the blade 6 rotates clockwise at a slower peripheral speed than that of the roller 4. Tobacco is removed from the teeth of the roller 210 by a raking device comprising rakes 180 moving in the path 190, 192, 194, 196. The rakes 180 are pivoted at 183 on an arm 181 pivoted at 182, but are frictionally held against angular movement on the arm 181. A lever 184 on the mounting for the rakes is connected to a chain 185 anchored at 186, and a cam 187 connected to the rakes is adapted to engage a fixed stop 1 S9 when the rakes reach the point 195 in their path. A raking device as described in Specification 441,433 may be provided instead of that shown in Fig. 6. Specification 520,223 also is referred to. One of the Provisional Specifications states that a pressing device &c. as described in Specification 385,210 may be used for dealing with a tobacco roll formed above the carded conveyer.
Patent GB-1255113-A (GB)
Title: Internal combustion engine crankcase ventilation systems
Inventor: DINGEL RONALD JOHN
IPC: F02M25/06
Filed: 1970-04-30
Abstract: 1,255,113. Air filters. GENERAL MOTORS CORP. 30 April, 1970 [21 May, 1969], No. 20911/70. Heading BIT. [Also in Division F1] The opposite ends of a pair of tubular filter elements 70 and 72 are sealed to respective annular end caps 64 and 66 and a filter chamber 78 having an outlet in the end cap 66 is defined by an enlarged pleat 76 in the element 70 and the element 72. The filter elements are mounted in an I.C. engine air cleaner 16 and a pipe 34 to the engine crankcase extends through the opening (82), Fig. 3 (not shown), in the end cap 66. The element 70 is formed of oiled paper, the element 72 of resin treated paper and the caps 64, 66 of plastisol.
Patent GB-377423-A (GB)
Title: Improvements in and relating to machines for clipping felt
IPC: D04H17/00
Filed: 1931-07-22
Abstract: 377,423. Clipping felt hat blanks. FARR, G. F. and PHILLIPS, P. W., 58, Collingdon Street, Luton. July 22, 1931, No. 20917. [Class 63.] u Relates to machines for clipping felt, particularly the felt material of hats, of the kind in which a driven roller for supporting the material to be clipped is mounted near a clipping device, towards and away from which the roller can be moved, the roller being reversible end for end so that the material may be clipped either from the right or from the left. A bracket-like frame 11 secured to a work bench 13 carries a casing 14 through which extends a main shaft 15 having fast thereon a worm 16 ; at the forward end of this shaft is a reciprocating cutter device 18 of known type, which is operated by the rotation of the shaft 15 and at its rear end is a driving pulley or sprocket 17. The worm 16 drives a worm wheel 19 fastened to a sprocket or pulley 21 from which motion is transmitted by a sprocket chain 63, via a sprocket 24 mounted on a shaft 23 and a jockey pulley, to a sprocket or pulley 36 secured to one end of a lay shaft 28 rotating in a bearing member 27 rotatably mounted on a pin carried at the end of an arm 25 movable angularly about a shaft 23 secured to the frame 11. On the other end of the lay shaft are fastened a pulley 34, in alignment with a pulley 32 and connected therewith by a belt 35, and a sprocket or pulley 37. The pulley 32 rotates as one with the roller 31 on a shaft 33 secured to the upper end of the support 30, which is rotatably mounted on a pin 29 extending upward from the bearing member 27. When the support is turned round so that the roller 31 is on its left, the sprocket chain 63 is put on the sprocket 37. A rearward extension 38 of the arm 25 is pivotally connected by an adjustable link 39 to a treadle 41. The dotted lines,. Fig. 3, show the idle position of the parts, when the roller, lay shaft &c. fall away from the cutter device 18 and the treadle 41 and link 39 are raised, allowing, by mechanism hereafter described, a compression spring 32 to apply a. brake block 53 to a pulley 54 which is rotatable on a shaft 47 and around which pulley and the driving pulley or sprocket 17 passes a belt or sprocket chain 55. When the treadle is depressed, as shown in Fig. 3, the roller 31 is raised to the cutter device and an adjustable link 59, connected to the other end of the pivoted lever 51 which carries the brake block 53 is depressed and through a pin 56 presses a boss 57, sliding on the shaft 47 and integral and rotating with two pulleys 45, 46, against the pulley 54, transmitting motion thereto. A driving belt 44 from the motor 43 passes around one of the two pulleys 45, 46. As long as the foot is on the treadle 41 the brake block 53 is raised, the friction clutch. applied, and drive imparted to the shaft 15.
Patent GB-1105296-A (GB)
Title: Improvements in or relating to electric discharge tubes
Inventor: HEFTMAN GEORGE
IPC: G09G1/20
Filed: 1964-05-21
Abstract: 1,105,296. Cathode-ray tube circuits. RANK ORGANISATION Ltd. 20 Aug., 1965 [21 May, 1964], No. 20941/64. Heading H4T. In a symbol display arrangement of the kind utilizing selective control (i.e. ON-OFF) of a plurality of electron beams produced by an e.g. 7 x 5 matrix in a cathode-ray tube together with deflection control means for positioning each symbol in a desired location on the tube screen an increase in the definition equivalent to that which a 14 x 10 matrix would produce is realized by subjecting the beams to a subsidiary deflection during each symbol display period such that each beam follows the path A-B-C D (Fig. 1). The subsidiary deflection is produced by supplying the normal X and Y deflection means with the output of a pulse generator 170 (Fig. 4, not shown) comprising a repeating sequence of pulses 1 to 4 (Fig. 2, not shown), these pulses, additionally, being combined in 180 (Fig. 4) to derive a further sequence 5 to 9 (Fig. 2) which together with the four subsidiary deflection pulses are utilized for ON-OFF control of the tube beams (Fig. 3, not shown), selectively in accordance with the symbol produced (Figs. 4 and 5a, 5b, not shown).
Patent GB-1058114-A (GB)
Title: Improvements in or relating to data stores
IPC: G11C7/02
Filed: 1964-05-21
Abstract: 1,058,114. Circuits employing bi-stable magnetic elements. INTERNATIONAL BUSINESS MACHINES CORPORATION. May 21, 1964 [May 31, 1963], No. 20943/64. Heading H3B. In a data store, a digit line 42 and a sense line 34, or a common digit-sense line, are each associated with several thin film storage elements 33 on a word line 10, and each includes a delay unit 46 between each two cells which it has in common with the word line. When word drive amplifier 11a provides a read-out pulse the outputs sensed by line 34 from elements 33a to 33e reach amplifier 37 in sequence. The output is returned via further delay units 46 to write amplifier 45 and the arrangement is such that each digit reaches the storage element in which it is to be rewritten at the instant at which the word pulse begins to die away. Two separate word pulses may be used for reading and writing or they may be combined in a single pulse. If the signal propagation time along lines 42, 34 is comparable with the delay imposed by elements 46, the digits are organized in word subgroups (Fig. 6, not shown). Three common digit-sense lines are connected to sense amplifiers 61, 62, 63 at one end and to write amplifiers 71, 72, 73 at the other end. In reading-out a word the subgroups U1 U2, U3 are read-out in parallel, and the units B1, B2, B3 of each subgroup appear in sequence. For writing-in a sequence of bit pulses is passed in parallel to each write amplifier. Lines 81, 82, 83 are provided for regeneration of the read-out information. The delay units may consist of extended lengths of conductor.
Patent GB-439129-A (GB)
Title: Improvements in or relating to printing upon porous sheet material
IPC: B41F23/00
Filed: 1934-07-17
Abstract: 439,129. Printing processes. WHEELWRIGHT, Ltd., J. S., 1, Lower Regent Street, London, and WHEELWRIGHT, J. S., The Corner, Three Elm Lane, Tonbridge, Kent. July 17, 1934, No. 20970. Drawings to Specification. [Class 100 (ii)] [See also Group VIII] A method of preparing porous sheet or web material for printing consists in securing the sheet or web to an absorbent sheet or web having a waterproof backing prior to the printing operation. The porous material may be silk or cotton fabric, and the absorbent material may be cotton felt. In a modification, the special absorbent sheet or web is omitted, and several sheets or webs of absorbent material united together may be secured to a waterproof backing, the ink passing through the top sheet or web to print the underlying sheets or webs of absorbent material. The waterproof backing may be a sheet or web of material, or may consist of a coating applied to the lowermost sheet or web. The sheets or webs may be secured together by adhesive. Specification 416,373 is referred to.
Patent GB-165674-A (GB)
Title: Improvements relating to means for retaining petrol cans and the like on motor cars
IPC: B60R9/02
Filed: 1920-07-12
Abstract: 165,674. Tailby, N. July 12, 1920. Petrol cans, detachably securing to running boards. - Spare petrol cans are secured to the footboard by vertical hinged frameworks, and a spring-controlled detachable gripping-head which bears on the top of the can. Each framework consists of two bars a hinged to the footboard and an upper cross-member d, the bars a forming guides for a sliding cross-piece e into which the bolt j is screwed more or less to vary the force with which the spring 9 pulls the gripping-head k downward. To prevent accidental disengagement and to facilitate locking, enlarged necks i on the bolts j engages key slots h in the ends of the gripping-head k. In a modification, the neck i is extended laterally as at o, Fig. 5, so that the bolt can only be disengaged from the key-slot when in one position. The two bolts may then be locked in this position by a rod extending through holes in each ball head f and secured by a padlock, &c.
Patent GB-260377-A (GB)
Title: Improvements in garment hangers
IPC: A47G25/48
Filed: 1925-08-21
Abstract: 260,377. Walton, G. Aug. 21, 1925. Coat, skirt, and like hangers. - In a device for hanging trousers &c. and of the kind comprising a wire spring yoke the ends of which are formed into clamping members over which the cuffs of the trousers are passed, the yoke a is suspen3ed from a hook g with spaced arms k. The yoke is formed with a central coiled spring b and outwardly and downwardly directed bends c.
Patent GB-441388-A (GB)
Title: Improvements in ships' hatches
IPC: B63B19/22
Filed: 1934-07-19
Abstract: 441,388. Hatches. MACGREGOR, R., 6, Lloyds Avenue, London. July 19, 1934, No. 21103. [Class 113 (i)] In Specifications 350,209 and 418,900* beams are described for supporting hatch covers and provided with detachable rollers whereby on lifting the beams they may be rolled along the coamings. According to the present invention, the tracks 3 on which run the roller devices 7 detachably secured to the beams 2 are disposed below the upper edge of the coaming 1, which thus forms a guide and safety device for the rollers.
Patent GB-1060695-A (GB)
Title: Multiplex programme control for a group of lifts
Inventor: AKOS BALINT
IPC: B66B1/20
Filed: 1964-05-21
Abstract: 1,060,695. Lift control systems. HAJTOMU-ES FELVONOGYAR. May 21, 1964, No. 21140/64. Heading B8L. The invention relates to a CYCLIC CONTROL SYSTEM, e.g. for two cars A, B, each operating in its own shaft and serving six floors. To determine priority of operation the cars are considered schematically as being in an endless chain system, Fig. 1, with car A always in advance of car B, and the CALL-RANGE of each car is the floors between it and the next car round the chain. Thus assuming car A going up at floor 3 (A3F) and car B at floor 5 going down (B5L), then the call range for car A is H3F, H4F, H5F, H6L, and for car B H5L, H4L and so on round the chain to H2F. In practice the CALL DISTRIBUTOR, Fig. 3, comprises contacts of the level register relays arranged in a ring (shown by heavy lines) which will be interrupted at two points corresponding to the positions of the lift-cars. The ring is earthed in response to a call, by contacts such as H1F-2 or H1L-2 of the call register relays, to energize distributer relay AH or BH according to the relative position of the call signal and the interruptions in the ring. The lift control system is described in detail with reference to Figs. 2 ... 10 (not shown).
Patent GB-437396-A (GB)
Title: Improvements in or relating to indiarubber hose pipes
IPC: B29D23/00
Filed: 1934-07-19
Abstract: 437,396. Hose pipes. SZURGENT, L., 29, Antonsplatz, Vienna. July 19, 1934, No. 21193. Convention date, July 19, 1933. [Class 99 (ii)] In a hose pipe comprising an inner rubber tube, an intermediate layer of braided or woven thread or wire, and a rubber cover, the inner tube, which is preferably formed in an extruding machine and is unvulcanized or only partly vulcanized, is filled with a pressure fluid and serves as a mandrel during application of the said reinforcing layer and rubber cover. In order to prevent stretching of the inner tube longitudinal threads or wires are embedded in or located on the wall of the tube as it leaves the extruding machine or when applying the reinforcing layer. The inner tube is coated with rubber solution before or after application of the reinforcing layer, and when dry a rubber layer is applied thereto to form the outer cover; alternatively several rubber layers with intermediate reinforcing layers are applied. Preferably the reinforcing layer only partly covers the inner tube in order to obtain an effective union between the inner tube and outer cover, and the individual threads thereof may be coated with rubber solution before the braiding &c. operation. The complete assembly is then vulcanized in known manner.
Patent GB-1441618-A (GB)
Title: Alarm systems
IPC: G08B13/00
Filed: 1973-05-04
Abstract: 1441618 Intruder alarms; fire alarms SECURITY CONTROL ENG Ltd 1 May 1974 [4 May 1973] 21220/73 Heading G4N An alarm system suitable as intruder or fire alarms for guarding a building comprises a first warning device to be located inside and operable immediately upon tripping of the system, a second warning device to be located outside the building and operable after an interval determined by a delay device unless the system itself is rendered inoperative during that interval by a master control switch. The master control switch may be incorporated in a door lock or be operable by a key or by a secret combination. The sensing switches may be associated with doors, windows, &c. The system can be tested manually. The first and second warning devices may include acoustic devices such as a bell and/or visual devices such as a flashing light. The system may be arranged so that the first warning device ceases operation automatically once the second warning device becomes operational.
Patent GB-1487101-A (GB)
Title: Apparatus for measuring a variable impedance such as liquid conductivity
IPC: G01R27/22
Filed: 1974-10-03
Abstract: 1487101 Resistance measuring bridges A F MILLS 3 Oct 1974 [14 May 1974 2 Oct 1974] 21231/74 and 42824/74 Heading G1U For measuring a variable impedance, a transformer applies an output signal from a relaxation oscillator to the impedance, any change in the impedance causing a change in the signal which is detected. The arrangement is used to measure the concentration of a detergent solution. The four arms of a bridge are composed respectively of R6; R7; C2 in parallel with R5 ; primary winding of T 1 in series with the collector-emitter junction of Tr2. A conductivity cell 1 is connected across the secondary winding of T1. A relaxation oscillator comprised of capacitor C1 charging via resistor R1 and discharging through a programmable unijunction transistor Tr 1 has its output frequency and amplitude determined by R3 and  RV1 with a diode D1 providing temperature compensation. The oscillator output pulses 5 are fed to the transistor Tr2 which thus supplies an approximate squarewave voltage to the cell 1. C 2  and R 5  stabilize the voltage at the transistor emitter and this is compared with the reference voltage at the junction of R6 and R7 by a meter M1. The arrangement is calibrated by inserting the cell in a solution of known concentration and adjusting RV1 to give centre-scale deflection (about 25ÁA) on M1. Any change in the cell 1 resistance due to change in conductivity of the detergent solution causes a change in the collector load of Tr2 and thus a change in emitter voltage. Also, the change in collector load is reflected through the transistor appearing as a change in the oscillator load, which affects the oscillator frequency and amplitude, accentuating the change in emitter voltage. The battery supply may be tested by closing PB1 when S1 is "OFF".
Patent GB-1148594-A (GB)
Title: Improvements in fuel injection pumps for internal combustion engines
IPC: F02M41/12
Filed: 1966-05-13
Abstract: 1,148,594. Fuel injection pumps. ROBERT BOSCH G.m.b.H. May 13, 1966 [May 14, 1965], No.21267/66. Heading F1A. A fuel injection pump has a reciprocating or reciprocating and rotating pumping and distributing piston 1, and its delivery is regulated by a by-pass passage 13a controlled by a slide valve 12 on the "hydraulic stop" principle, slide valve 12 being displaced to the right by fuel from an auxiliary piston 17, and being spring-loaded to displace fuel through a passage 27 with an adjustable throttle 26, which retards the return movement of slide valve 12. Piston 1 incorporates regulating means for controlling the period during which passage 27 is open, such that this period is shorter than the interval between two delivery strokes, of the pump. The regulating means comprises longitudinal grooves 28 communicating with a circumferential groove 29 permanently communicating with suction chamber 11. Movement of slide valve 12 to the right is limited by an overflow passage 23 with an adjustable throttle 24. Passage 23 may be connected to passage 27 so as to be controlled by the regulating means, Fig. 2 (not shown).
Patent GB-1421095-A (GB)
Title: Overhead projector
IPC: G03B21/132
Filed: 1974-05-14
Abstract: 1421095 Overhead projector G RITZERFELD 14 May 1974 [23 June 1973] 21279/74 Heading G2J An overhead projector has two lamps 2, 3 mounted on a common frame 1 which is displaceable perpendicularly to the optical path so that each of the two lamps is selectively movable into an operative position. As shown, lamp 2 is in the operative position. If it fails, a lever 8 is manually operated to move frame 1 and to operate contacts 11 which switch off lamp 2, switch on lamp 3 and energize a warning lamp (not shown) indicating that lamp 2 requires replacement. The lamps are housed in a box 12 which is vertically displaceable by cam disc segments 19 to accommodate different projection distances.