baber/WOPTO huggingface dataset:
Patent GB-1213885-A (GB)
Title: Electric-motor speed control
IPC: H02P7/291
Filed: 1968-03-21
Abstract: 1,213,885. 885. Automatic control of speed. PHILIPS ELE CTRONIC & ASSOCIATED INDUSTRIES Ltd. March 21, 1968 [March 24, 1967], No.13729/68. Heading G3R. The speed of a series motor is controlled by regulating the off-time of a periodically operated interrupter in the motor circuit by means responsive to the armature voltage while the interrupter is off, during which time the field flux is provided by separate means. As shown, the motor is energized from a D.C. source 3, the interrupter comprises a transistor 6 and operation is controlled by a multivibrator 9,10. When 9 is conducting a "sampling" transistor 11 is also conducting, switching a trigger circuit 12,13 to a condition which biases 6 "off"; the field is then energized through a resistor 7 and the motor e. m.f. is integrated by charging a capacitor 15. When 9 and hence 11 go "off" at the end of the finite sampling period, 15 discharges through resistor 16, thereby completing a sawtooth waveform which at some point equals the reference voltage on a Zener diode 18. At this point trigger 12,13 changes over and switches on transistor 6. The time required to reach this point depends upon the amount the capacitor was charged by the motor e.m.f. and hence is a measure of its speed, and since this is also the "off" time of transistor 6 the speed is regulated to remain substantially constant. Resistor 17 is voltage dependent to protect transistor 11. In an alternative embodiment, Fig. 3 (not shown) the supply is A. C., the interrupter is a thyristor, triggered at variable phase angle by a blocking oscillator controlled by a transistor trigger (32,33), the field is energized by a capacitor (51) during "off" periods, and operation is controlled directly by the A. C. supply. In either embodiment the field may include a permanent magnet, which then provides the flux when the interrupter is off.
Patent GB-283775-A (GB)
Title: Improvements in bullnose, splayed, angle, and arch tiles used in fireplaces, and kerbs and other tiles
IPC: E04F13/14
Filed: 1927-05-23
Abstract: 283,775. Malkin, J. R., and Marsden Tiles, Ltd. May 23, 1927. Tiles for fireplaces, kerbs, &c.-Bullnose and like tiles are. formed on the back with one or more projections b, b<2> with their ends d, d<2> undercut to bind into the cement or plaster. The edges b<3> of the projections b<2> may be serrated or irregular. The tile may also be provided with an undercut recess e and a transverse groove f.
Patent GB-1395322-A (GB)
Title: Weighing apparatus
IPC: B65D90/48
Filed: 1971-05-07
Abstract: 1395322 Discharging hoppers J W TILLS 4 May 1972 [7 May 1971] 13800/71 Heading B8S [Also in Division G1] A weighing hopper 1 of weighing apparatus (see Division G1) is fed with granular or pulverulent material from above by a feed hopper 2, whose discharge is controlled in response to load signals from the weighing hopper 1. The outlet control apparatus for the feed hopper having an outlet passage 15 for gravity discharge of the material, comprises a control member 17 supported beneath and adjacent the passage 15 and having a larger circumference than the outlet passage, the member 17 being vertically adjustable relative to the passage and being mounted on springs 20 whereby the member 17 may be vibrated to disturb the material supported thereon for discharge into the weighing hopper 1. The solid control member 17 is attached to an annular sieve portion 18 of a tray 16 through which the material passes for discharge, the vibration of the tray and control member being effected by a piston and cylinder 21, e.g. pneumatically operated. A sleeve 19 is vertically movable on the outlet passage 15 to produce a gap between the outlet and the member 17 related to the angle of repose of the material such that no material will spill to the sieve portion 18 whilst the plate is not vibrated.
Patent GB-1098987-A (GB)
Title: Improvements in or relating to oil heating plant
IPC: C10G9/20
Filed: 1965-04-01
Abstract: 1,098,987. Oil heating furnaces. BABCOCK & WILCOX Ltd. April 1, 1965 [April 3, 1964], No. 13804/65. Heading F4A. An oil heating furnace comprises banks of oilheating tubes I . . . IV arranged in combustion gas passes 4a, 4b, 5 so as to be heated by convection, the walls of the gas passes and the combustion chamber 2 being lined with steam generating tubes extending between headers 11, 12. The gas passes 4a, 4b are formed by a dividing wall 3 formed of steam generating tubes welded together side by side. Combustion gases are recirculated from the flue 5 through openings 7 upstream of the burners 6 or through openings 9 into the gas pass 4a. Steam from the separator drum 13 passes to a superheater 14. More than one superheating stage may be provided and some of the oil heating tubes may be arranged upstream of the superheater in the direction of gas flow.
Patent GB-1143393-A (GB)
Title: Headrest for car and like seats
IPC: B60N2/48
Filed: 1965-04-01
Abstract: 1,143,393. Head-rests for seats. I. H. J. BOURNE. 18 March, 1966 [1 April, 1965], No. 13807/65. Heading A4J. In a head-rest 1 attachable to a backrest of a vehicle seat, a resilient wire or like frame 3 has projections 7 and 10, which grip the back-rest, when a rearward turning movement is exerted on the upper part of the frame by tightening straps 14. The frame 3 is drawn into a flattened V-formation by the tension in the straps. The projections 7 and 10 may be provided with bearing plates or may be padded. In a modification (Fig. 6, not shown), straps 14 are attached to additional rear projections. Members 9 are securable to the rear of rest 1, at different distances apart and at different levels, by means of a plate (22) (Figs. 3-5, not shown) and rows of socket holes (20a, b and c) to receive the ends of the members. A lumbar pad may be attached to the frame 3.
Patent GB-196497-A (GB)
Title: Improvements in or relating to leading-in conductors for vitreous material
IPC: H01J5/46
Filed: 1922-05-16
Abstract: 196,497. Naamlooze Vennootschap Philips' Gloeilampenfabrieken, Holst, G., and Oosterhuis, E. May 16, 1922. Wire.-Leading-in wires for electric lamps &c. comprise an uncoated metal tube of high electric conductivity (for example copper) and having the property of sealing or sticking to the vitreous material at or below the sealing-in temperature, and a filling of material (for example tin or glass) that becomes plastic or molten at or below the sealing-in temperature. Reinforcing-wires may extend longitudinally through the tube within the filling material. Specifications 22911/06 and 22911A/06, [both in Class 39, Electric lamps &c.], are referred to.
Patent GB-118907-A (GB)
Title: Improvements relating to Machines for Tearing Cloth or Fabric.
Inventor: FRIER JOHN DOUGLAS
IPC: D06H7/20
Filed: 1917-09-26
Abstract: 118,907. Frier, J. D. Sept. 26, 1917. Tearing, severing by.-Consists of a machine for tearing fabrics longitudinally, applicable for the production of strips for handkerchiefs. The fabric is led from a pile on a table 29 or from a roller 38, upward between guide-bars 27, 28 and through a slot in a transverse plate 26<a>, where it is torn, one strip being led to a winding-roller S at one side of the machine, and the other to a roller 9 at the other side. The slotted plate is provided with a cloth-edge guide 26<b>, and is supported in a wheeled carriage 26 movable between rails 24, 25, so that if one of the rollers takes up faster than the other, the carriage will adjust itself to maintain an even tension on the fabric. The main shaft 2, driven by belt and fast and loose pulleys, drives the rollers 8, 9 by chain gearing, the one direct and the other through a. countershaft 3. When the driving-belt is thrown on the loose pulley, the shaft 2 may be turned in the opposite direction by means of the handwheel 41 to unwind the strips from the rollers 8, 9. This is necessary when, from some defect in the fabric, the tear has diverged to one side or the other of the proper line, as shown by edge indicators, and it is required to make a fresh nick in the fabric. The unwound fabric is carried to the front A of the machine into a convenient position for nicking, by a roller 32, mounted in a carriage slidable along guide-rails 30. The guiderails are pivoted at one end, so that their front ends may be lowered; the carriage then moves forward, taking the fabric with it, and at the same time the guide-bar 28 is caused to rock to nip the fabric against the bar 27 by means of levers and links 33 - - 37. When the fabric is being torn into strips of different width, the narrow strip may stretch more in winding than the wide strip; to compensate for this, the tension on the wide strip is increased by means of a tension roller 18 that is drawn down between the rollers 17<a>, 17<c> by means of a treadle 23 and a system of levers and links.
Patent GB-1149844-A (GB)
Title: Improvements relating to devices for cutting thin slices
Inventor: SLEE ROBERT KENNETH
IPC: G01N1/06
Filed: 1966-03-29
Abstract: 1,149,844. Microtomes. R.K. SLEE and K.V. SLEE. June 23, 1967 [March 29, 1966], No. 13853/66. Heading G2J. A microtome for cutting thin slices has means for automatically separating the specimen holder and knife after each cutting stroke so that the specimen holder and specimen do not make contact during the return stroke. The microtome may comprise a fixed knife 2, and a specimen holder 1 mounted on a frame 3 pivoted on knife edges 9 of a pair of fulcrum struts 7 held in V-shaped notches 10. The specimen holder is reciprocated for cutting and return strokes by a linkage 12 on a cranked disc 13; disc 13 has a cammed surface 31 which engages a follower roller 32 on a rocker 33 thus, via shafts 36, 19 or (54), arms 24 attached to struts 7 and frame 3, causes the specimen holder to move longitudinally away from the knife edge during the return stroke. The specimen hold may be fed into the path of knife 2 by a pawl 17 engaging a ratchet 16 effecting downward movement of screw-threaded shaft 19 which is converted to lateral movement of holder 2 by arms 24, struts 7 and frame 3, the amount of lateral movement is set by a cam 28. In alternative embodiments, the specimen holder may be fed by continually heating frame 3 and for the rocker 33 may be used to pivot knife 2 away from specimen holder.
Patent GB-386663-A (GB)
Title: A device for the automatic sealing of injuries caused by foreign bodies to air, gas or liquid-filled tanks or containers
IPC: B64D37/06
Filed: 1931-05-11
Abstract: A puncture-closing composition for use in connection with pneumatic tyres, and containers for gases or liquids, consists of hypermasticated, dead-rolled rubber with 18-35 per cent of spindle or other mineral oil.
Patent GB-1356111-A (GB)
Title: Vacuum ovens comprising shelves or trays
IPC: F27B5/04
Filed: 1970-03-23
Abstract: 1356111 Vacuum ovens SOUTH LONDON ELECTRICAL EQUIPMENT CO Ltd 21 June 1971 [23 March 1970] 13947/70 Heading F4B  A vacuum oven has a shelf comprising upper and lower stainless steel plates 1, 2 between which is a zig-zag electrical heating element 3. Stainless steel strips 4 act as spacers for the heat ing element the ends of which are taken to a connector 8 through a vacuum seal in the oven wall. A tube 11 is attached to the outside of one of the plates or arranged between the plates and a cooling fluid passed through it. In a further embodiment, Fig. 3 (not shown), the strips 4 are replaced by rows of stainless steel discs.
Patent GB-161857-A (GB)
Title: Improvements in hinged covers for closing containers, tank filling apertures or for like purposes
IPC: B60K15/04
Filed: 1920-05-21
Abstract: 161,857. Vulcan Motor & Engineering Co., (1906), Ltd., and Grinham, E. G. May 21, 1920. Stoppers and lids, catch. - In hinged covers for containers, tank filling - apertures, &c. the hingepin is constituted by a spring ring F which extends around the neck A of the aperture and has its ends coned resiliently to engage recesses F<2> in a lug E attached to the cover D. The ring F is engaged in slots in a pair of lugs B<2> on the neck embracing a hinge lug C on the cover and also in slots in lugs arranged at intervals around the neck, while its ends pass through holes in a pair of lugs B<3> on the neck embracing the lug E. Jointing-material G is provided, for example, in a recess in the cover. The lugs C, E may be made separate from the cover and secured thereto, and a flange D<4> on the cover encloses the ring and lugs.
Patent GB-1279536-A (GB)
Title: Workpiece feeding or stacking machine
Inventor: SELLE HEINRICH
IPC: B65G47/91
Filed: 1970-03-24
Abstract: 1279536 Suction lifting devices H SELLE 24 March 1970 [31 March 1969] 14094/70 Heading B8H Workpieces 2, Fig. 1, are placed on a conveyer table 3, or removed therefrom, by suction heads 17 mounted on a beam 13, which is supported from.an adjustable jib 10 by a lazy-tongs linkage 14. The linkage 14 is operated by a ram 16 and the jib is raised by a screw 9 driven by a motor 9<SP>1</SP>. The workpieces are picked up from stacks on each side of the table 3. In a second embodiment, Figs. 3, 4, the general arrangement is similar but two beams 130 are provided on a carriage which is movable transversely of the table 3. The beams are spaced so that one is over the table whilst the other is over one of the two stacks 2.
Patent GB-543897-A (GB)
Title: Manufacture of pharmaceutical and veterinary preparations
IPC: A61K31/16
Filed: 1940-09-16
Abstract: 543,897. Pharmaceutical preparations. COLLIE, B., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Sept. 16, 1940, No. 14212. [Class 81 (i)] Aqueous dispersions of triphenylchloroethylene suitable for injection as an oestrogenic agent are prepared by grinding in water in the presence of a dispersing agent which in the proportions necessary (from 1 per cent. to 10 per cent. of the active substance) has no harmful physicalogical effect. Suitable dispersing agents are sodium dinaphthylmethanedisulphonate, sulphite cellulose lye, sodium 4- aoctadecenylamine-1-methoxybenzene-2-sulphonate, sodium di-isopropyl-naphthalene-B-sulphonate and condensation products from ethylene oxide and longchain fatty acids. Glycerine, glucose and sodium chloride are substances which may be added to the solution according to examples.
Patent GB-823667-A (GB)
Title: Method and apparatus for reducing the effect of scattered light in monochromators
IPC: G01J3/42
Filed: 1957-05-06
Abstract: 823,667. Photo-electric analysis of radiation. WHITE DEVELOPMENT CORPORATION. May 6, 1957 [Sept. 19, 1956], No. 14327/57. Class 40 (3). In apparatus for measuring the intensity of a selected portion of a spectrum a beam of that portion passes through a monochromator and a chopper having signal and compensating apertures which produce respectively (a) signal and scattered beams, and (b) substantially only scattered beams, which are translated photoelectrically into an electrical output signal, the scattered beams cancelling each other out so as to indicate substantially only the signal radiation. Light from a source 2 is chopped at 16, passes through adjustable jaws 22, prism 26, mask 30 and adjustable jaws 32 to strike a photo-voltaic cell 34. The chopper 16, Fig. 3, has a semi-circular signal aperture 42 which passes radiation directly as well as producing scattering, and. semi-circular compensation apertures 44, 46 from which only scattered radiation is received. The scattered radiation from the two slots is cancelled out in amplifier 36 and the amount of direct radiation is indicated at 38. The chopper, which may vibrate, may be of other shapes or be placed in other positions in the optical system. The two beams of the chopper may otherwise be distinguished by giving the scattered and scattered plus direct radiation different frequencies (Figs. 4 and 6, not shown) or different phases (Figs. 7 and 8, not shown). In the phase discriminating method a phase detector synchronized with the motion of the signal aperture of the chopper and another detector synchronized with the motion of the compensating apertures are connected in a subtracting circuit, adjustment of the apparatus being made in the circuit rather than optically. To zero the apparatus a sample is used which has substantially no transmission in the selected region so that only scattered light will reach the photo-cell.
Patent GB-1491759-A (GB)
Title: Printing machines
IPC: B41J1/32
Filed: 1975-04-08
Abstract: 1491759 Selective printing GROSS CASH REGISTERS Ltd 7 April 1976 [8 April 1975 (2)] 14341/75 and 14342/75 Heading B6F A printer has print wheels 10 and a plurality of hammers 23, each of which are movable parallel to the spindle 11 to successively strike an associated group of adjacent wheels 10. Hammer arrangement.-A follower 33 engages the rotating cam 31 to cause axial movement of the spindle 29. Block 40 and coupling member 38 and link plates 46A ensure spindle 27 and bar 46 move in unison with the spindle 29 in the axial direction. Each hammer 23 is pivotally mounted on spindle 27, powered by spring 45 and cocked by an associated cam 28. As shown there are five hammers and twenty wheels 10; hence each cam 28 has four lobes, i.e. one for each cocking of its hammer in the printing cycle.  Type selection.-Except for two fixed wheels at each end, which carry start and stop codes, all the wheels 10 carry numerals and corresponding bar code marks and are selectively rotatable by an associated driving wheel 16 which also rotates an indicator wheel 21. Whilst a key 18 associated with each wheel 16 is kept depressed, a pawl 17 mounted on a carriage 22 is permitted to engage the wheel 16. When the carriage 22 is rocked by movement of pin 22A each wheel 16 engaged by its pawl 17 is stepped. Drive and interlock.-A drive from a common motor can be selectively clutched to the spindle 29 and to the carriage 22. An interlocking mechanism, Fig. 2 (not shown), ensures selection and impression cannot occur simultaneously.
Patent GB-833410-A (GB)
Title: Improvements in louvres
Inventor: AMERY ARTHUR NORTON
IPC: E06B7/084
Filed: 1958-05-05
Abstract: 833,410. Windows; shutters; louvres; operating apparatus. CRITTALL MANUFACTURING CO. Ltd. May 5, 1958, No. 14344/58. Classes 20(3) and 137 A louvre carrying bar 1 has a longitudinal flange 11 forming a weather strip and a drain channel 13 is formed inside the flange adjacent the bar. As shown, the bar 1 has flanges 3, 4 and the flange 3 is doubled over and joggled at 12 to provide the flange 11 and drain channel 13. Louvre clips 8 are mounted on pivot pins 7 offset from the longitudinal axis of bar 1 and spring 27 mounted in split studs 29 retain glass or metal louvres 9 against flanges 31, 32. Figure 1 shows the operating mechanism: the pivot pins 7 have keyed to them arms 20 which are pivoted to an operating rod 21. A toggle linkage 23 pivoted to the rod 21 and 24 pivoted to the bar 1 operates to lock the louvres in the closed position. The link 23 has an extension 28 which in the closed position bears on the rod 21. An embossed semi-circle 17 seals the pivots 7 against weather.
Patent GB-754273-A (GB)
Title: Improvements in or relating to cardboard or the like display trays
Inventor: WYNNE JOSEPH SAMSON
IPC: G09F1/00
Filed: 1954-05-17
Abstract: 754,273. Display trays. W. & M. BOXMAKERS, Ltd. March 29, 1955 [May 17, 1954], No. 14371/54. Class 3(2) A cardboard blank, Fig. 1, is provided with slits 6. 7 and fold lines as shown in order to make the tray of Fig. 2. The wall 2 of the blank is provided with an opening 10 and slots 14 to receive an advertizing panel 8 which is positioned as shown in Fig. 1 for storage purposes and is mounted as shown in Fig. 2.
Patent GB-1212465-A (GB)
Title: Cable connector and means to manufacture same
IPC: H01R12/50
Filed: 1969-03-19
Abstract: 1,212,465. Two-part couplings. BUNKERRAMO CORP. 19 March, 1969 [29 March, 1968], No. 14411/69. Heading H2E. Electric cable connectors are manufactured from a printed circuit board 1 with parallel conducting paths 3 on its underside 2 and perforated by holes 4 in a grid pattern so that each path 3 'contains a column of holes. 'Soldering pins 7a of a connector strip 7 are passed through a row of holes so that the strip 7 lies at right angles to the conducting paths 3 but on the top of the board, the pins 7a being joined to pin or socket contacts 7b, 7c in the strip. Bared wire ends 8a of multi-core cables 8 are also passed from the top through holes adjacent to the soldering pins 7a and both wire ends and pins are soldered to their respective paths 3 by splash bath, wave, or dip soldering. A single board may be divided by slots 6 into segments 5 and then cut down the line A-B to form a number of connectors attached to cables 8. A connector may be fitted with slotted end pieces (10) one of which forms a cable clamp, and may be inserted into a split insulating sleeve ( 15) (Fig. 3, not shown) or be rotatably suspended in bearing blocks or on pivots (Figs. 4-7, not shown).
Patent GB-553207-A (GB)
Title: Improvements in means for the automatic control of air pressure in a closed chamber
IPC: B64D13/04
Filed: 1941-11-08
Abstract: 553,207. Automatic control systems. BENDIX AVIATION CORPORATION. Nov. 8, 1941, No. 14413. Convention date, Nov. 5, 1940. [Class 38 (iv)] Fluid pressure.-A chamber 10 exposed to varying external pressures, such as an aircraft cabin, has a valve 15a communicating with the exterior and means 57, 63, 64 responsive to the rate of change of internal pressure operating to close the valve. A blower 12 is in normal operation to supply external air to the chamber and is stopped with the closure of the valve when the pressure change is upward. Further control means 17 responsive to internal pressure may close the valve and subsequently determine the internal pressure by opening and closing it but its action is modified by a device 18 responsive to the difference between internal and external pressure so that below a certain external pressure, such as that due to a given altitude in the case of an aircraft cabin, the maintained internal pressure will fall at a slower rate than the external pressure. The control means comprise aneroid type elements and the control is electrical. The element 57 actuates a switch lever co-operating with contacts 65, 68 and a relay 28 to close the valve, and with a contact 69 and a relay 70 to open the circuit of the blower motor. The elements 17, 18 operate jointly on a lever 20 which selectively controls relays 27, 28 governing a reversible electric motor 38 and its armature circuit switch 49 to open or close respectively the valve 15a. Resistances 26a ensure that the rate of change of pressure control supersedes the pressure control when operative. Adjustment of the elements 57, 17 on their mountings determines respectively the rate of change of pressure and the internal pressure at which the valve will be closed and adjustment of the ratio of the arms of lever 20 or of the bush 22 will determine the pressure difference at which the valve will be opened.
Patent GB-612160-A (GB)
Title: Improvements in or relating to tippler apparatus
IPC: B65G69/18
Filed: 1946-06-13
Abstract: 612,160. Rotary tipplers. MITCHELL, F.G. June 13, 1946, No. 14455. [Class 78 (iv)] In tippler apparatus for use with a tubular or funnel-shaped shoot, the apparatus being of the kind comprising a supporting structure and a cradle that has rails for carrying a vehicle loaded with fragmentary material, the cradle being mounted to move angularly. on the supporting structure for discharging the contents of the vehicle, the cradle has closure means 75 which substantially close the inlet of the shoot 70 in all positions of the cradle except the discharge position. The cradle comprises a pair of arcuate rockers 20, 22 having a gap 24 and constituting two tracks rigidly connected by longitudinal members 26. The two tracks 20, 22 are rotatably mounted on a plurality of rollers 28, 30 mounted in spaced relation on two pairs of posts 16, 18 carried on the supporting structure 60. The closure means comprise an arcuate plate 75 extending along the entire length of the cradle along its inner peripheral face and extends outwardly at 76 at opposite sides of the delivery gap 24.