baber/WOPTO huggingface dataset:
Patent GB-702492-A (GB)
Title: Improvements in or relating to spirit levels
IPC: G01C9/32
Filed: 1951-09-12
Abstract: 702,492. Spirit levels. HOSKINS, W. F. Feb. 20, 1952 [Sept. 12, 1951], No. 21453/51. Class 97(2) In a spirit level of the kind comprising a bubble tube mounted in a casing while a lamp bulb and metal battery casing containing two cells are arranged beneath the bubble tube in circuit with a switch mounted in the bubble tube casing, the battery cells are arranged with the lamp bulb between them and adjacent an opening in the battery casing which is opposite a central opening in the bubble tube casing, one cell and the lamp being mounted in smaller metal casing mounted in one end of the battery casing while a conductor strip extends from the lamp socket to abut against one terminal of the other cell when the latter is inserted in the battery casing with its ter. minal in resilient contact with the latter. As shown in Fig. 1, the bubble tube 2 is mounted in a block 1 as of wood having formed therein a bore 1a in which lies a brass battery casing 3 having an opening 3a registering with an opening 1b in the block 1 beneath the bubble tube. The lamp bulb 9 and one cell 6 are carried in a case 8 slidable in the casing 3, and from the lamp holder 10 extends a strip 11 to contact one terminal of the other cell 5. This cell is in resilient contact at 4 with the casing 3 and cell 6 may be engaged by a screw switch 17. In another form, Fig. 3 (not shown), the bubble tube casing and the battery casing are entirely separate and are each removably mounted on pillars upstanding from a metal base plate; the bubble tube is in this case provided with a rotatably mounted protective sleeve having diametrically opposite openings. In a further form, the level is torpedo shaped and formed in a single casting.
Patent GB-1446124-A (GB)
Title: On-line ultrasonic gas entrainment monitor
IPC: G01N29/02
Filed: 1974-05-15
Abstract: 1446124 Ultrasonic gas-entrainment monitor; sound reflectors UNITED STATES ENERGY RESEARCH & DEVELOPMENT ADMINISTRATION 15 May 1974 [15 May 1973] 21494/74 Headings H4D and H4X Gas bubbles entrained in a liquid in an enclosure are quantified by directing ultrasonic energy radially outwards over a 360 degree arc from a transducer in the enclosure, receiving the energy after reflection from the interior walls of the enclosure and/or from the bubbles, and providing an indication of the attenuation of the received energy. The Fig. 1 device has a flat transmit/receive transducer 16 for directing pulses towards the wall of tubular enclosure 10 via a conical reflector 20. Radial supports 18, members 24, 26, and acoustically transparent sleeve 30 are all stream-lined. Transducer 16 and reflector 20 are replaced by a cylindrical transducer 34 in the Fig. 3 embodiment. The Fig. 1 or 3 device may be included in the primary coolant piping of a nuclear reactor to detect fuel element failure (Fig. 5, not shown).
Patent GB-904640-A (GB)
Title: Improvements in or relating to paint and like brushes
Inventor: WILCOCK ERNEST ALBERT
IPC: A46B3/12
Filed: 1960-06-20
Abstract: 904,640. Paint brushes. SPA BRUSHES Ltd. June 20, 1961 [June 20, 1960], No. 21573/60. Class 19. In a method of making a brush wherein the bristles are secured by a cement 6 or the like, e.g. a synthetic resin in one end of a ferrule 1, a handle 2 being secured in the other end, the ends of the bristles 5 are inserted into the ferrule, a cement 6 in liquid form being applied to such end portions, a block 4b is introduced into the ferrule to contact the cement, the latter subsequently hardening to bind the bristles and block together, and a further quantity of cement 6 is introduced into the ferrule to bind the block and bristle assembly to the ferrule. As shown, a wedge 7 of channel-section, which may, however, be a tube of P.V.C. or rubber, or a solid non-compressible body is introduced into the roots of the bristles. The block 4b is provided with a longitudinal slot 9 which permits the side of the block adjacent the bristles to flex when a laterally-applied compressive force is applied to the ferrule after the first quantity of cement has been inserted therein. A number of wedges 7 and slots 9 may be provided. Specification 856,868 is referred to.
Patent GB-353679-A (GB)
Title: Improvements in or relating to devices for determining the speed of aircraft
IPC: G01P3/36
Filed: 1930-07-16
Abstract: 353,679. Bomb-dropping sights. HOFE, C. VON, 5, Sonnleithnerg, Vienna, and AKT.-GES. C. P. GOERZ, OPTISCHE ANSTALT, Pressburg, Bratislava, Czecho- Slovakia. July 16, 1930, No. 21577. [Class 97 (ii).] Bomb-dropping apparatus of the kind provided with clockwork for regulating the incidence reflector of the optical sighting instrument, is adapted for determining the ground-speed when the reference point is located behind the observer by the provision of means permitting the rotation of the bombdropping apparatus through at least 180‹ about a vertical axis, with simultaneous reversal of the direction of motion controlling the incidence reflector by means of a reversing gear arranged in the clockwork controlling the reflector. As shown in the Figure, the sighting device comprises a telescope with objective 1, eyepiece 2, and an erecting prism 23, and a rotatable reflector 3. The telescope may be vertically oriented by means of the transparent level 24. The reflector 3 is rotatable about the axis 5 in front of a window 4, and a toothed segment 6 is secured to the reflector holder, and is engaged by a second toothed segment 7 of half the pitch diameter pivoted at F. The latter is secured to a slotted guide 8 engaging the pin P of a nut 9 non- rotatably mounted on a threaded rotatable spindle 10. The point 8a indicates on the scale 11a the adjustment of the reflector 3 required for any given aeroplane height. The spindle 10 is uniformly rotated by clockwork 12 reversible by means of the lever 13, the rotation being indicated on a scale 12a by a pointer 20. The knob 10a serves for the simultaneous adjustment of the pointers 8a, 20. The lower portion of the casing is provided with a tubular bearing collar H mounted in a cylindrical boring of the plate P. The clockwork may be started or stopped by pressure on a knob of the stop-watch type.
Patent GB-976756-A (GB)
Title: Improvements in or relating to travelling wave tubes
Inventor: ASH ERIC ALBERT
IPC: H01J23/24
Filed: 1961-06-15
Abstract: 976,756. Travelling wave tubes. STANDARD TELEPHONES & CABLES Ltd. June 15, 1961, No. 21673/61. Addition to 906,206. Heading H1D. A slow wave structure comprises a grating 1 of intersecting electrically conducting strands in the form of a hollow, generally cylindrical body, and a flat electrically conductive plate 2 joined to the grating throughout the length of the structure, the conductive strands of the grating being arranged to form a regular pattern of staggered apertures. As shown, Fig. 1, the plate is tangential to the generally cylindrical body; alternatively, the plate extends in a diametral plane through the hollow body and projects to either side beyond it. The regular pattern may be staggered rectangular apertures, Fig. 2, or diamond-shaped apertures, Fig. 3. In a modified arrangement, two gratings are concentrically disposed, each consisting of a set of equidistant parallel electrically conductive strands inclined to the cylindrical axis, the angles of inclination in the two gratings being opposite to one another, the flat plate being arranged radially in between the gratings and joined to each of them throughout their lengths. The cylindrical grating may be a whole cylinder as shown, or in the form of a semi-cylinder. The structure may be used in a travelling wave amplifier or a backward wave oscillator.
Patent GB-203648-A (GB)
Title: Improvements in box making machinery
IPC: B31B17/00
Filed: 1922-03-03
Abstract: 203,648. Shields, T., (Burt Co., Ltd., F. N.). March 3, 1922. Paper tubes. - Relates to ironing or smoothing means for box-making machines. A form of the invention is shown constituting part of a machine identical with that fully described in Specification 203,353 for making the cylindrical body portions of circular boxes. At a certain stage in the formation of the box, a thin preferably ornamental strip 110 is added and in its passage to the former passes over a glueing-roller 137 and a scraper 139 and is ironed by a roller 140 on a spring arm 141, passing thence to reciprocating feed jaws, one of which carries a detent pawl to prevent backward movement of the strip due to the pull of the arm 141.
Patent GB-1115642-A (GB)
Title: Space conditioning system
IPC: F24F5/00
Filed: 1964-05-26
Abstract: 1,115,642. Heating and cooling buildings. P. EISLER. 26 May, 1965 [26 May, 1964], No. 21688/64. Heading F4U. The walls of a room are maintained below blood heat, e.g. at a temperature of between 55‹ and 95‹ F. so that the radiation heat loss of an average adult occupant is limited to about 400 B.T.U. per hour minus the heat exchanged directly between the occupant and the air in the room. Ventilation air may be dessicated before entry, e.g. by a heat-exchanger 18 beneath the window 13 so as to avoid condensation on the walls. A device 21 senses the temperature and humidity of the air and controls a thermostat 17 which may also be manually adjusted by a pointer 44 to regulate the temperature of the walls. The walls are thermally insulated and may be heated by electric resistance heating film or may be heated or cooled by fluid flowing slowly in a closed circuit through a porous layer within the walls formed e.g. of foamed plastics, felt, wood cellulose or porous clay enclosed between impervious layers of polyvinyl chloride &c. In suitable localities water may be drawn from a deep lake for cooling the walls. The means for adjusting the temperature of the walls comprises a hemispherical container 31, with its flat surface attached to the wall, filled with liquid 33 of high thermal expansion acting on a diaphragm 34 operating a microswitch 37. A screw 38 operating in a bellows 40 and turned by a manually operated pointer 44 regulates the temperature at which the switch 37 operates. Where the heat dissipating layer is between the insulating layer and the mass of the wall, the latter may serve as a heat storage device, giving the system great thermal inertia and if the capacity of the wall is large enough, the whole system can be run as a night-storage system operating on the off-peak tariff.
Patent GB-883616-A (GB)
Title: Improvements in or relating to motor vehicle transmission systems
Inventor: COOPER RAYMOND JAMES
IPC: F16D3/205
Filed: 1958-07-08
Abstract: 883,616. Universal joints. BIRFIELD ENGINEERING Ltd. July 7, 1959 [July 8, 1958], No. 21780/58. Class 80 (2). In a universal joint of the axially slidable transverse trunnion type the longitudinal guides 3 for the part-spherical rollers 7 are formed in the wheel hub 1, and the trunnion 6 is located between the wheel bearings 11 carried by the hub mounting 12. A brake drum 2 is formed integrally with the hub 1. The joint is sealed at its inner end by a rubber boot 8 and at its outer end by a closure plate 18. Specification 883,617 is referred to.
Patent GB-713292-A (GB)
Title: Method of operating electrically heated forging machines and a machine to carry out the method
IPC: B21J9/08
Filed: 1952-08-29
Abstract: 713,292. Forging. MASCHINENFABRIK HASENCLEVER AKT.-GES. Aug. 29, 1952 [Aug. 29, 1951], No. 21784/52. Class 83 (4). [Also in Group XI] An electric forging machine with an anvil 2 and ram 3 is operated with heating of the workpiece 1 by current passing simultaneously transversely between clamping electrodes 7 and longitudinally between the clamping electrodes 5, 6 and an anvil electrode 2. The clamping electrodes are insulated from one another and may be connected electrically through at least one secondary winding of at least one transformer; and where a polyphase transformer is used, e.g. a three-phase transformer, the third secondary winding 26 may be connected to the anvil 2. One or more secondary windings may be disconnected, so that the workpiece may be heated longitudinally, transversly or both. The transformer is controlled on the primary side stepwise by tappings. The heating current of two phases 22, 23 on the primary side may be controlled by a common step switch 29, the third phase 21 connected to the clamping electrodes 5, 6 for transverse heating being separately controlled by a separate step switch 31. The secondary windings may be disconnected individually. Current may be supplied by two single phase transformers connected in parallel, the secondary of one being connected to the clamping electrodes 5, 6 and the secondary of the other to the electrode 5 and anvil 2. Contact pieces 7, 20 of different lengths may be placed between the electrodes 5, 6 and may be arranged so that the transverse resistance of the workpiece portion between these clamps is approximately equal to the longitudinal resistance of the workpiece between the anvil 2 and the clamps.
Patent GB-320947-A (GB)
Title: Improvements in or relating to molds for casting metals
IPC: B22C9/06
Filed: 1928-07-27
Abstract: 320,947. White, A. E., (Aluminium, Ltd.). July 27, 1928. Moulds. - An iron, steel, or other permanent mould for casting aluminium &c. comprises halves 2, Fig. 7, associated with a base 1 so that they can expand without losing their original alignment. The halves are connected at one side by a lever 10 and cam 11 and at the other by a hinge pin 3 which engages a slot or hole, elongated in the direction of the contact faces c, in the base. A projection 25 on the base engages a corresponding recess, in the halves 2, concentric with the mould cavity. In a modification the pin 3 does not engage the base and rotation is prevented by making the projection 25 non-circular or arranging a dowel pin 33 in the base to engage a hole formed at the faces' c. If it is desired to adjust the halves 2 to compensate for wear &c. each half may be hinged to a separate pin 14, 15, Fig. 3, with eccentric pivots in plates 16, 17 to which they can be locked by screws 22. The plate 17 has a pin 18 which may engage an elongated hole in the base. This construction also permits a hinged mould being used for castings with considerable projections &c.
Patent GB-835471-A (GB)
Title: Explosive compositions and methods of producing same
IPC: C06B31/28
Filed: 1957-07-10
Abstract: 835,471. Explosive compositions. D'EXPLOSIFS ET DE PRODUITS CHIMIQUES S. A. July 10, 1957 [July 17, 1956], No. 21889/57. Class 9(2) An explosive composition comprises a homogeneous mixture of divided ammonium nitrate with an apparent density of from 0.1 to 0.9 with a combustible organic liquid, such as a liquid hydrocarbon fraction (gasoline, fuel oil or gas oil), an alcohol (methanol or ethanol) or an organic acid such as acetic acid. The liquid ingredient forms from 3% to 12% of the total composition. The absorption coefficient of the ammonium nitrate should not be below about 8%, and it may be increased by mixing divided fibrous cellulose with the ammonium nitrate.
Patent GB-1383628-A (GB)
Title: Rotary-piston internal combustion engines
IPC: F02B55/08
Filed: 1973-05-08
Abstract: 1383628 Rotary positive-displacement machines DAIMLER-BENZ AG 3 May 1973 [9 May 1972] 21918/73 Heading F1F In a trochoidal-type I. C. engine a coating 10 on one or each of adjoining surfaces 6, 7 and 8, 9 of housing peripheral and lateral walls 2, 4, 5 obviates leakage and consists of an elastically or plastically deformable metallic or plastics material capable of withstanding a temperature of at least 200C and having a thickness not exceeding 0À2 mm before the housing is assembled. The coating may be either lead, tin or zinc foil or applied by plating or screen printing.
Patent GB-581788-A (GB)
Title: Regulating mechanism for windows or other similarly movable devices
IPC: B60J7/12
Filed: 1943-12-31
Abstract: 581,788. Window-opening apparatus. JENKINS,-R. G. C. (Parsons, J. B.). Dec. 31, 1943, No. 21921. [Class 20 (iii)] [Also in Groups XIV and XXIV] A regulator for operating vehicle windows of the kind comprising a fluid actuated piston 40 connected to crossed lever mechanism 31, 32 to effect a to-andfro movement of the window &c. is characterized by the provisions of a spring 51 which is tensioned upon regulator movement in one direction, movement in the opposite direction thereby being assisted when the pressure is released. The cylinder is pivoted on a pivoted lever 45 having an extension 48 acting as stop and the spring connects this lever to the sliding arm 32 of the crossed levers whereby the spring absorbs expansion of pressure fluid occurring after the window 25 has been moved to its ultimate position.
Patent GB-213189-A (GB)
Title: Improvements in and relating to water heating apparatus
IPC: F24D19/10
Filed: 1923-08-30
Abstract: 213,189. Shoemaker, G. E. Aug. 30, 1923. Heating water.-The cold water supply pipe 8, 4 to a hot-water storage tank 2 in a domestic supply system is connected as at 16 directly with the hot-water delivery pipe 14 from the top of the tank, there being interposed a fitting 17 having a port 20, of area less than that of the pipe 16, which may be fixed, Fig. 3, or controllable by a screw plug 21b, Fig. 5. By this connection syphonage of the contents of the tank 2 is prevented.
Patent GB-349367-A (GB)
IPC: D01F11/02
Filed: 1930-07-22
Abstract: Viscose artificial silk is desulphurized and bleached in a bath or baths containing available oxygen.  The silk may be desulphurized and partly bleached in a partly spent bath, and the bleaching then completed in a fresh bath.  In an example, the silk is treated at 60-70 DEG  C. in a partly spent bath containing hydrogen peroxide and sodium silicate, rinsed, and then treated at the same temperature in a fresh bath containing the same reagents; the bleached product is weakly acidified and washed again.
Patent GB-1314543-A (GB)
Title: Control means for stopping an electric motor
IPC: H02P3/22
Filed: 1970-05-07
Abstract: 1314543 Control of A.C. motors A K LITTWIN 7 May 1970 [23 June 1969] 22065/70 Heading H2J  When stop-switch 42 is opened to stop a motor 18, contacts 36b, 36c, 36d close to connect resistors 22 across the motor windings a predetermined period of time before contacts 62b, 62c, 62d open to disconnect the supply at the same time that contact 62f closes to enable a motor braking circuit 26 controlling relay 28. Closure of contacts 84b shortly afterwards causes brake application. Closure of main switch 16 energizes coil 36a, opening contacts 36b, 36c, 36d and closing contacts 36e, 36f, thus energizing coil 48a whose contacts 48b close. Operation of the start switch 56 then energizes coil 62a via contacts 48b and 52b, the latter closed by coil 52a, thus closing contacts 62b, 62c, 62d to connect the motor to the supply, and holding contacts 62e. Contacts 62f open to render the braking circuits 74 and 82 non- operative during motor running. Operation of the stop switch 42 leads to the reverse of the above sequence for starting, contacts 38b having been opened upon closure of contacts 52c at starting, contacts 38c, d having also closed at starting, to hold coil 38a energized, and to prepare the circuit 74 for operation when contacts 62f open, respectively. Closing of the contacts 62f energizes coil 84a of a delay relay 84 after a short interval leading to operation of the circuit 24 energizing coil 28a, so connecting the motor for braking via contacts 28b, 28c, 28d. Relays 38 and 68 co-operate to de-energize coil 84a after a delay sufficient for braking of the motor, thus opening contacts 84b to render the braking circuit 24 inactive.
Patent GB-203683-A (GB)
Title: An improved process for the manufacture from cyanamide of manures containing soluble organic nitrogen
IPC: C05C7/00
Filed: 1923-09-01
Abstract: The process for making manure, as described in the parent Specification, by treating a porous material such as peat or turf, clay, pozzuolana or other volcanic ash with a concentrated solution of cyanamide, obtained from calcium cyanamide, and heating the mixture under pressure, is modified (1) by drying the mixture by exposure in the air instead of heating under pressure, (2) by using peat which has already been treated instead of fresh peat, in order to obtain a product having a higher nitrogen content, (3) by adding acids to the mixture in the case where the mixture is heated under the pressure of carbon dioxide or nitrogen, and (4) by using as porous material the residues described in Specification 182,134, which are obtained when calcium cyanamide is treated with carbonic acid.  When the mixture of porous material and cyanamide solution is heated under pressure, a temperature between 60 DEG  and 90 DEG  C. is preferably used.
Patent GB-442019-A (GB)
Title: Improvements in ejectors for vacuum brake apparatus for railway and like vehicles
IPC: B60T13/46
Filed: 1934-07-30
Abstract: 442,019. Brake-ejectors. METCALFE, R. D., and METCALFE, J. C., Injector Works, Romiley, Cheshire. July 30, 1934, No. 22158. [Class 71] In an ejector for vacuum brake apparatus, the main ejector, steam-control valve h is so constructed that the effective area for the flow of steam past the valve does not increase with increase of control handle movement or of valve lift throughout the range of such movement, but after a predetermined effective area for steam flow is reached, the area is reduced, and the valve lift is controlled by a handle a associated with an indicator a<1> so that the flow area is suited to the steam pressure available to give maximum ejector efficiency. The spindle b controlled by the handle a has cams c, d which control the air valve e and the main ejector, steam valve h. The valve e supplies air to the space f and the train pipe connection g. Steam passes from the inlet i to the space and the train pipe when the valve h is opened and the valve e is closed. A valve k supplies steam to a continuously working ejector which maintains a vacuum in the train pipe by overcoming leakage. The stem m and the seat n of the valve are tapered. On opening the valve h, the tapered stem gradually reduces the supply. The control fitting may be separate from the injector proper. A steam brake may be combined with the vacuum brake. Specification 325,404, [Class 71], is referred to.