baber/WOPTO huggingface dataset:
Patent GB-220812-A (GB)
Title: Valve spring lifter
IPC: B25B27/26
Filed: 1923-08-28
Abstract: 220,812. Kirkham, J.- Aug. 28, 1923. Prizing-tools; pliers.-A tool, for use particularly as a valve spring lifter, comprises two pivoted lever members 1 each provided with a jaw 4 having upstanding flanges 5 round its edge to engage the washer supporting the spring. The levers are of sheet metal stamped to channel form, the channels having extended sides 2 which overlap and are pivoted together by a pin 3. The jaws 4 are of circular shape, the flanges 5 being situated around their edges to engage the spring supporting-washer. Slots 6 are provided to accommodate the valve spindle. To hold the levers 1 when the spring is compressed, a ballheaded pin 7, or a link hinged to one lever and adapted to pass over the end of the other, may be employed.
Patent GB-533019-A (GB)
Title: Road sign kerbs
IPC: E01F9/053
Filed: 1939-07-27
Abstract: 533,019. Road-traffic signs. FRANKLIN, V.A. July 27. 1939, No. 21795. [Class 3 (ii)] A kerb has alternating blocks G, F of differing colour forming the top surface, and a row of recesses in the side towards the road. On the traffic-facing inclined walls C of the recesses are insignia A in distinctive colours provided with reflectors B. Reference has been directed by the Comptroller to Specifications 368,735, [Group X], and 450,866.
Patent GB-597986-A (GB)
Title: Arrangements for tracing electric pulses on cathode ray oscillographs
IPC: G01S1/02
Filed: 1945-08-24
Abstract: 597,986. Radiolocation. STANDARD TELEPHONES & CABLES, Ltd. Aug. 24, 1945, No. 21830. Convention date, March 18, 1944. [Class 40 (v)] A circuit for reducing interference in a pulse radar system due to pulses of large amplitude, comprises means for deriving, from the received pulses, pulses having an amplitude to width ratio which is greater for large amplitude pulses than for other pulses, and a cathode-ray display unit of which the time base trace is deflected transversely by the derived pulses, the brilliancy of the trace being adjusted so that pulses producing a rapid transverse motion due to a large amplitude to width ratio are displayed as indications so faint that they are practically invisible. Fig. 1 shows a radar system comprising a pulse 'transmitter 10, a sweep circuit 18 which produces the horizontal sweep voltage for the oscillograph 16 and a receiver 12, the output of which, Fig. 2a, is applied to the anode 33 of a double diode so biassed that the lower portions of the received signals are limited at level 42. The output developed across resistor 43 is applied to the second half of the double diode which is so biassed that the positive portions of the signal are cut off at level 41. The double diode output is as shown in Fig. 2b, the circuit being so adjusted that the small amplitude non-interfering signal 50 is passed substantially unchanged while the large amplitude interfering signal 52 is limited as shown. These output signals are differentiated by a condenserresistor network 60 to yield pulses as shown in Fig. 2c, these pulses being passed through a clipper amplifier 70 which removes the negative portions of the pulses to produce pulses as in Fig. 2d which are then applied to deflect the beam of the cathode-ray tube.. The pulse produced from the interfering signal is of greater amplitude and narrower than that produced from the non-interfering pulse, so that the rate at which the beam is deflected is greater for the former signal. The brilliancy of the cathode-ray beam is consequently adjusted so that the small amplitude pulse produces an easily visible trace while the large amplitude pulse produces a faint trace whereby its interfering effect.is greatly reduced. In an alternative embodiment, the output from the receiver 12 is applied to a clipper valve which clips at a level such that only the peaks of the interfering pulses are passed. The output of the clipper valve which is negativegoing, is applied to a double triode mixer together with the receiver output. The peaks of the large amplitude signals are consequently cancelled by the output of the clipper valve so that the mixer output comprises two narrow pulses in place of the interfering pulse while the non-interfering pulse is passed unchanged. This mixer output is applied to the cathoderay oscillograph as before.
Patent GB-191773-A (GB)
Title: Improvements in electrical connections between conductors
IPC: H01R4/52
Filed: 1921-08-17
Abstract: 191,773. Firth, J., and Cohen, S. Aug. 17, 1921. Plugs.-A detachable electrical connector comprises a conducting member having a conductorreceiving passage and means carried thereon and operable by a sleeve to grip or release the, conductor by movement toward or away from the axis of the said passage. Figs. 1 and 2 illustrate a telephone plug in which the conductors 13 are secured and connected by balls 20 set in radial openings in a conducting stem 11 and urged towards the conductor by a sleeve having a conical or tapered portion 22 engaging the balls and actuated by a spring 26. In a modification, Fig. 5, the stem 11 is slotted at 27 and its tapered head 18a is engaged by the tapered portion of the sleeve; one of these elements only need be tapered. In a further modification, the slit, tapered head may be exteriorly screw threaded and engaged by an interiorly screw threaded sleeve, the spring 26 being omitted. A double or multiple ended connector may be constituted by arranging :t conductor receiving passage at each end or arm of a conducting member and providing gripping means of any of the forms described. A coupling of this kind may be arranged on the terminal p.n of a sparking plug or the ends of a lead may be fitted with such a coupling wherewith to engage the terminal stem of a plug. Reference has been directed by the Comptroller to Specifications 4672/00, 21861/07, and 23774/07, [all in Class 38, Electricity, Regulating &c.], and 108,745, 123,468, and 156,291, [all in Class 38 (i), Electric couplings &c.].
Patent GB-459242-A (GB)
Title: Improvements in and relating to horns for gramophones or like sound reproducing machines
IPC: G10K13/00
Filed: 1935-08-02
Abstract: 459,242. Acoustic horns and resonators. MIURA, H., 23, Tamachi, Hongo-ku, Tokio. Aug. 2, 1935, No. 21941. Convention date, Aug. 8, 1934. [Class 13] A horn for a soundreproducing instrument, such as a gramophone, incorporates a closed chamber 7 of curved crosssection positioned symmetrically at the centre of the outlet portion of the horn and set into resonance by the sound waves incident on it. As shown, the resonator chamber 7 has the surface F of greatest radius of curvature facing the direction of the incident soundwaves and its upper and lower curved surfaces in conjunction with the upper and lower walls 4 of the mouth of the horn divide the outlet into two passages. The resonator may be a double-walled structure and enclose an inner closed chamber N and the outlet of the horn may be a double-walled structure 4, 5. The cross-section of the closed airchamber 7 may be circular or elliptical. The sound-inlet tube 1<1> which is of considerable length, bifurcates and forms two passages 1, which terminate in mouth portions 2 adjacent the surface of the resonator 7.
Patent GB-244524-A (GB)
Title: Improvements in or relating to devices for arresting the rotation of running shafts or shafting in the event of accidents and other contingencies
IPC: E21D15/22
Filed: 1924-09-18
Abstract: 244,524. Bevins, F., and Hunt, J. E. Sept. 18, 1924. Stopping machinery by movement of guards or protectors; breaking- pieces for relieving strain. - Emergency stop mechanism for line shafting comprises, in combination, a weighted or spring-loaded member controlling a belt-striker, clutch, or driving-electromotor cut-out switch, a spring-controlled slidable bolt engaging the member (or a part associated therewith) to hold it in the " on " position, a double-armed catch lever biassed by a spring &c. to hold the bolt in operation, a flexible wire, cord, &c. alongside the shafting adapted to release the catch and bolt mechanically or electrically, and a lever &c. acting on the bolt to reset the mechanism. A sliding belt fork 4 is manually operated by a lever 11 to set the belt 5 on the fast pulley 2, and is there retained, against a spring or weight 13, by a spring-pressed sliding bolt 17 engaging a hole in a lug 20 on the lever. The bolt is held operative by a roller 24 on a trip lever 23, which is movable between an adjustable stop 26 and a lug 34 when pulled against a spring &c. 25 by a wire 30. This wire is connected to a wire 27 supported adjacent to the shaft 1. The trip lever may, however, be actuated by a solenoid controlled by a switch to which the wire 27 is connected. The bolt 17 has an inclined surface 17a to help the release movement of the trip lever and a slightly bevelled end 17b to assist its retention, a handle 36 being provided to reset the bolt. The belt fork 4 may be directlv connected to the bolt 17. The bolt 17, or means, such as the lug 20, associated therewith or engaged thereby, may also support and release a spring-pulled or weighted lever actuating a band brake simultaneously with the belt-shifting operation. The wire 27 is made up of a number of lengths connected by readilyfrangible joints 35, in order to prevent injury to a person caught thereby. These joints may comprise eyes 35a, Fig. 11, connected by weak, open links 35h. The belt fork may be replaced by a similarly-controlled clutch lever, or the bolt 17 may detain and release a spring or weight biassed tappet 54, Fig. 9, which knocks over the handle 53 of an electrical cut-out to stop an electromotor when the trip lever 23 is lifted. According to the Provisional Specification, the flexible connection may be actuated by contact therewith of a broken belt.
Patent GB-1419167-A (GB)
Title: Sheet material dispensing packages
IPC: A47K10/38
Filed: 1973-05-09
Abstract: 1419167 Container of moistened sheets COLGATE-PALMOLIVE CO 3 May 1974 [9 May 1973] 22048/73 Headings B8C and B8M A container enclosing a strip of moistened absorbent fibrous material and having an aperture 22 through which a leading portion 23 of the strip can be threaded to be manually grasped for withdrawal, has at least a portion of the edge of the aperture 22 in the form of a pointed notch to grip the strip pulled thereagainst during the withdrawal of the strip and thereby permit severance of the leading portion, the aperture 22 being of such size and shape as to be filled substantially completely by the gathered-in cross-section of the strip threaded therethrough. The strip may be in the form of successive sheets conjoined end to end by weakened regions. The container may have a replaceable closure cap 19. The aperture 22 is preferably three sided with three pointed corners. The container may have a seal which hermetically seals the container and must be broken or removed to afford access to the strip.
Patent GB-703225-A (GB)
Title: Improvements in and relating to seats
IPC: B60N2/34
Filed: 1952-09-02
Abstract: 703,225. Bed settees. WALTER. Ltd., M., CARTE, C. H. W. Nov. 19, 1952, [Sept. 2, 1952], No. 22071/52. Class 52(2) [Also in Group XXXII] Seat units particularly for ambulances and other vehicles and other places are arranged and mounted so that they may be converted into beds, stretcher carriers, &c. or can be removed for use as portable seats. As shown, the seat unit comprises a seat frame 1...4 and a back frame 6...9 pivoted together at 28 by means of arms 26, 27 and also at 16 by arms 29 and links 30. The back frame 6...9 is carried by a mounting member 12 pivotally secured at 13 to a bracket 14 secured to the side of the vehicle &c. The back frame 6...9 is provided with brackets 31 to which are pivoted at 32 the turned-up arms 33 of a cross member 34 carried by a sleeve 11 rotatably'mounted on the mounting member 12. The seat unit is provided with squabs 5, 10 and with legs 18, 24. Fig. 3 shows how two, seat 'units arranged in tandem in a vehicle are converted into a bed or stretcher carrier, the seat and back frames being locked in alignment by means of projections 25 on the legs 24 being engaged by slots in pivoted brackets 21 and projections 45 on the seat frame of one unit engaging a slotted member 42 on the outer end of the back frame. The seat unit may be swung up against the side of the vehicle by swing- ing the member 12 upwardly about its pivot 13.
Patent GB-974926-A (GB)
Title: Improvements in or relating to endless conveyors
Inventor: SHEEHAN JOSEPH EMMET
IPC: B65G17/48
Filed: 1961-06-04
Abstract: 974,926. Endless conveyers. M. A. SHEEHAN. June 4, 1963, No. 22112/63. Heading B8A. An endless conveyer comprises a pair of laterally spaced parallel tracks 4, one or more carrier units 15 adapted to travel along the tracks and rotatable by means of control elements 24 actuated by guide tracks 5, between carrying and unloading positions about an axis transverse to the direction of travel. Each unit 15 comprises a carrier plate 18 to each end of which a shaft 16 is rigidly secured, a fourwheeled track follower 19, 20, 21, 22, secured to the shaft 16, a shaft 23 in axial alignment with shaft 16 but secured on the opposite side of the track follower and the control element 24 secured to the remote end of the shaft 23. The control element 24 comprises a wheeled trolley 25 which runs in a recess 26 in the elongated element body and has an axle 30 extending from the trolley, through a slot 29 in a cover plate 28 secured to the control element and rotatably mounts a wheel 31 which runs in the guide track 5. Dogs 14 rotatably support each shaft 16 and are interspersed as required between the links of a pair of endless chains 13 which are mounted on, and driven by sprockets 12 journalled in ribs 9 on each track framework. Each track 4 is formed in a side member 1 and has two vertical 1a and two horizontal 1b spans. At the juncture of the spans, the track is omitted. The guideway 5 is formed continuously in each side member 1. In one cycle of operation, a carrier plate 18 is maintained horizontal around the top half of the circuit by means of the relative positions of the track 4 and guideway 5. Upon reaching an abnormal contour 33 in the guideway 5, the advance of the wheel 31 is retarded relative to its associated moving parts and therefore causes a 90 degree rotation of the carrier plate 18, the control element body and the track follower 19, 20, 21, 22. The latter is permitted to rotate in this area due to a recess 35 in the track 4. The carrier plate 18 is moved back through 90 degrees to its original attitude by means of a further abnormal contour 34 and associated recess 36 in the bottom horizontal span of the circuit. A final abnormal contour 37 in the guideway 5 of the vertical span causes the wheel 31 to change ends of the recess in the control element body, the carrier plate and track follower being maintained in the same attitude since no track recess is provided. The carrier plate 18 may be maintained at any angle between the horizontal and vertical after the abnormal contour 33 is passed, depending on the position of the guideway 5 relative to the track 4. The rotating operation of the carrier plate 18 may be accelerated by the provision of a fixed cam 38, Fig. 7 (not shown), which engages the control element body. Varying numbers of wheels may be provided for the track follower depending on the required angle of rotation of the carrier plate.
Patent GB-884676-A (GB)
Title: Apparatus for cutting paper into folded or crimped strips
Inventor: BROOKS ERIC
IPC: B31F1/24
Filed: 1958-07-10
Abstract: 884,676. Corrugating paper. TWEEDY & CO. Ltd., GEORGE. July 10, 1959 [July 10, 1958], No. 22129/58. Class 141 [Also in Groups VIII and XVII] Apparatus for cutting paper 31 into crimped strips comprises a rotary shaft 16 having a series of projections 18 which co-operate with slots 14 in a bar 13, the paper being fed intermittently into the path of the projections by means of a bar 20 which is displaced by means of cams 28 on the shaft 16 against the action of springs 27 when the projections 18 approach and pass the slots 14. The shaft 16 may be replaced by a bar and the slotted bar 13 by a bar having a series of spaced plates or knives.
Patent GB-964934-A (GB)
Title: Improvements in looms for weaving
Inventor: PORTER IAN STEPHEN
IPC: D03J1/00
Filed: 1962-06-08
Abstract: In a loom for weaving papermaker's felts and conveyer belting, a mist of water or chemical solution is created over the warp between the warp beams and the shedding mechanism, and the fabric is stretched and dried on the way to the cloth beam.  The mist may be produced by sprays, or by a roller dipping into a trough to carry liquid against a stationary brush which flicks it into the air.  The fabric is drawn off by a series of rollers and passes under the floorboard of the loom to a second series of rollers driven slightly faster than the first series to stretch it.  Under the floorboard, the fabric passes between dielectric heating panels or has hot air blown on to it; alternatively, some of the rollers are heated.  Tensioning warps. The warp from the beams passes in a serpentine path round a series of driven rollers.  To facilitate initial threading of the warp through the roller, it is stated that elliptical gears may be provided at their ends, which move them apart when partly rotated.
Patent GB-744196-A (GB)
Title: Improvements in or relating to silencing means
Inventor: GREATREX FERDINAND BASIL
IPC: F02K1/40
Filed: 1953-08-12
Abstract: 744,196. Silencers for exhaust gases. ROLLS-ROYCE Ltd. Oct. 14, 1954 [Aug. 12, 1953]. No. 22282/53. Class 7(2) [Also in Group XXVI] - A conduit 10; e.g, the jet pipe of a jet propulsion engine, through which the high velocity gas flow is of a non-pulsating nature, has an outlet portion 13 of which the periphery increases from the inlet towards the outlet end, and the - crosssectional area in a plane 'normal to the mean direction of the gas flow either remains constant or decreases immediately or after an initial constant portion to provide a throat having a cross-sectional area less than that of the inlet end of the portion 13. The outlet end may be rectangular, oval or elliptical, and there may be a further section of' increasing crosssectional area downstream of the throat thereby providing a convergent-divergent nozzle. As shown, the portion 13 changes gradually from circular cross-section at the inlet end to a rectangular cross-section at the outlet end, the length of the rectangular section being 3. 6 or 10 times the width; the sides of the rectangular end are inclined inwardly as at 14 and that end is divided by struts 15 of trapezoidal form into six apertures 18, square in cross-section. In a modification (Fig. 2, not shown), the walls of the apertures 18 are frusto-conical giving rise to corrugations in the portion 13.
Patent GB-662211-A (GB)
Title: Improvements in washing machines for fruit and vegetables
IPC: A47J43/24
Filed: 1949-08-29
Abstract: 662,211. Fruit &c. washer. MATHER & PLATT, Ltd., and MATHER, W. L. Aug. 15, 1950 [Aug. 29, 1949], No. 22363/49. Class 28 (ii). [Also in Group XXX] Fruit or vegetables delivered into the lower perforated buckets c of a vertical endless chain conveyer d is sprayed at the top with washing water from pipes f, the rebounding water being deflected by baffles t into the lower buckets. Other nozzles g with separate control valve agitate the fruit in the buckets. The fruit is conveyed from a picking table by conveyer b into the lower buckets and is finally delivered at the discharge point k. Fig. 3 shows a sheet metal bucket with perforations q in its lower part and with the conveyer chain links s welded on.
Patent GB-1470506-A (GB)
Title: Fuel injection pumping apparatus
IPC: F02M59/30
Filed: 1973-05-11
Abstract: 1470506 Fuel injection pumps CAV Ltd 29 April 1974 [11 May 1973] 22475/73 Heading F1A A fuel injection pump comprises a displacement piston 15 arranged to pump fuel through an outlet 11 and an electrically controlled fluid-pressure operable piston 20 for actuating the displacement piston 15, the delivery of fuel through the outlet 11 being terminated when, at a predetermined piston position the outlet is placed in communication with a drain. As shown communication between the outlet 11 and the drain is established when a spill passage 16, 17 registers with a spill gallery 18 leading to a source of fuel 14, but in an alternative Fig. 2 (not shown), a spill valve (42) in the piston is displaced by contact with the end of its cylinder 10. The fluid for operating the piston 20 is supplied and exhausted through a passage 22 under the control of valves 23, 24. The valves 23, 24 are operated by fluid acting on the upper ends of valve-members 30, 31, 32 and 26, 27, 29, the fluid being moved by a piston 33 displaced by energization of a stack of Piezo-electric crystals 34. In the position shown fuel from a source 14 flows past a non-return valve 13 to act with a spring 21 in moving the pistons 15, 20 in the return direction. The return movement is stopped when an electronic circuit including a coil 39 for sensing the stroke of the piston 20 causes part energization of the crystal stack 34, the timing of this energization being dependent on the quantity of fuel required to be delivered. Part energization overcomes a spring 28a to move the valve-member 30, 31, 32 to a position closing the drain 25, a stronger spring 28 maintaining the valve 23 closed. When the next injection is required the circuit causes the crystal stack to be fully energized to open the valve 23 so that high-pressure fluid from an accumulator 24a enters the passage 22 to operate the piston 20. The valves 23, 24 may be replaced by a single valve (44), Fig. 3 (not shown).
Patent GB-625979-A (GB)
Title: Improvements in safety devices for knitting machines
IPC: D04B35/18
Filed: 1946-07-29
Abstract: 625,979. Knitting-machines. BEVINS, F. July 29, 1946, No. 22504. [Class 74 (ii)] [Also in Group XXXVII] A spring-loaded feeler blade 1 can move endwise, or rock about a pivot pin 3, or do both, so that a contact 5 which it carries can " make " with either of faces 12, 13 of a contact 11, borne on a block 6 in which the feeler is mounted. The block is carried on one of the knitting cam carriages 20 and the end 2 of the feeler is located between the needles of the two beds, close to the point where the fabric leaves the needles. The feeler is housed in a longitudinal groove 7 in the block and the bottom of the transverse recess housing the pin 3 is formed with an incline 17. The device may be used to detect a load-up, which would move the feeler endwise, or rock it ; a faulty needle, which would rock the end 2 outwardly, or jammed yarn guides 21, which would deflect the end 2 inwardly, causing the pin 3 to ride along the incline 17. It may also be used to detect abnormal tension or breakage of the yarn, or failure of supply. The device may form part of a stop motion as/or give a visual or aural warning signal. The device may be made to clear a bracket, which would otherwise obstruct its traverse, by engagement of a roller on the device with cam located adjacent to the bracket.
Patent GB-1509016-A (GB)
Title: Bottle caps
IPC: B65D41/62
Filed: 1975-05-23
Abstract: 1509016 Secondary closures TUBOPLASTFBANCE 23 May 1975 [12 June 1974] 22596/75 Heading B8T A secondary protective closure of plastics material is composed of two parts, namely a cylindrical skirt 1 and a disc 3 fixed to the edge of one of the ends of the skirt and the skirt is composed of two co-extruded thermoplastic materials 5, 6 of the same material, the inner layer containing, as an additive, a product which reduces its coefficient of fraction. The preferred thermoplastics material is 0À4 grade low density high pressure polyethylene and the additive may be glycerol monostearate (0À25%) or a fatty amide, e.g. a food-grade master mixture (2À5%). The disc can be attached by over moulding or the closure may be thermoformed and a vent 4 may be provided in the disc 3.