baber/WOPTO huggingface dataset:
Patent GB-455920-A (GB)
Title: Improvements in or relating to apparatus for controlling exposures in photographic printing and reversal processes
IPC: E01C19/10
Filed: 1935-04-23
Abstract: 455,920. Photographic exposure-controlling apparatus. I. G. FARBENINDUSTRIE AKT. - GES., Frankfort - on - Main, Germany. April 23, 1935, No. 12189. Convention date, April 20, 1934. [Class 98 (i)] Apparatus for automatically controlling the light illuminating a film during reversal or a negative during printing comprises a lightsensitive cell illuminated by light received from the photographic image, and a mirror galvanometer influenced by the current in the cell to change the direction of a pencil of light, which illuminates a number of photo-electric cells controlling a series of relays which affect the grid voltage of a grid-controlled discharge tube and thereby the intensity of the source of light illuminating the object. As shown in Fig. 2, a photo-electric device A is illuminated by light passing through a reversal film F, and the current from the cell A actuates a galvanometer G, the mirror of which reflects light from a source Lg onto a series of regenerative photo-electric devices B1, B2 ... Bn. Relays C1, C2 ... Cn are each in series with one of the photo-electric devices B1, B2 ... Bn, and operate switches c1 c2 ... en to shortcircuit portions of a potentiometer controlling the grid of a discharge tube S. The printing light Ln, e.g. of yellow light, is in the circuit of the discharge tube, and its intensity is determined by the actuation of the particular photoelectric device B1 which determines the potential of the grid of the discharge tube. Alternatively, the switches c1, c2 ... en may determine the tapping of a battery or a transformer, or may control the relative phase lead or lag of the grid and anode of the discharge tube. In Fig. 3, an additional series of relays D1 ... Dn and a series of switches dalpha1 . . . dalphan, d#2 ... d#n, dgamma3 ... dgamman are included. The pencil of light is made so large that in passing from one device B1, B2, &c. to the other, two adjacent relays are actuated. The switch d#2 is closed when the relay D2 is actuated, and the switch dgamma3 is opened when the relay D3 is actuated, the relays D1 ... Dn when actuated closing the switches dalpha1 &c. to control the printing illumination. By this means, when the ray passes from device B2 to B1 the switch C1 is closed without a voltage being applied across it, and similar action occurs in the movement across the other photo-electric devices B3 ... Bn. The relay Dn, has an auxiliary coil D1n which is energized over the switch d#n and maintains the switch dalphan closed when the beam of light passes over the end of the bank of light-sensitive devices. The Specification as open to inspection under Sect. 91 comprises also the subject-matter of Specification 455,023, [Group II], and the description of a diaphragm of tapering shape. This subject-matter does not appear in the Specification as accepted.
Patent GB-455626-A (GB)
Title: Improvements in chimney and/or ventilating cowls
IPC: F23L17/02
Filed: 1935-04-23
Abstract: 455,626. Chimney &c. tops. FORD, E. L., BROWN, T. F. W., and AIRVAC, Ltd., Honeypot Lane, Darlington. April 23, 1935, No. 12215. [Class 25] A chimney or ventilating cowl comprises a series of similarly formed equally spaced vertical slats 1, Fig. 1, each having a flat centre portion and outwardly bent edges 2 the vertical apertures 4 between the slats being unscreened on the outside and the slats being connected at their upper ends to a dome shaped member 3 and at their lower ends 5 to a member 6 adapted to be secured to a chimney or roof ventilating structure. A second or inner series of slats 9' of similar form may be arranged within the first series and directly behind the apertures 4. In the form shown in Fig. 5 the lower ends of the inner slats 9 are secured directly to a cylindrical member 15 and the lower ends of the slats 1 are connected to the member 15 by a conical member 14, drainage openings 16 being formed in the pocket between the members 14 and 15. The entry of rain to the interior of the cowl is prevented by a series of overlapping conical members 19 attached to the inner faces of the slats 9. In another modification the conical members 19 are replaced by a vertical series of horizontally and angularly disposed slats or louvres arranged in each of the spaces 4 between the outer slats 1. The dome 3 may be formed by two or more parts such as 24, 25 and 26, Fig. 10. In a further modification, Fig. 11, the ends of the inner slats 9 are directly connected to the dome 3 while the slats 1 are connected thereto by apertured spacing brackets 28 thereby leaving an annular outlet between the dome and the slats.
Patent GB-1026813-A (GB)
Title: Improvements in carburetors for internal combustion engines
Inventor: MENNESSON ANDRE LOUIS
IPC: F02M71/00
Filed: 1964-03-23
Abstract: 1,026,813. Spray carburetters. SOC. INDUSTRIELLE DE BREVETS ET D'ETUDES S.I.B.E. March 23, 1964 [March 26, 1963], No. 12216/64. Heading F1B. Fuel is supplied to injection nozzles 2 by an electrically driven pump 3, the motor 4 of which is not energized until the air flow in the induction pipe 1 reaches a predetermined value. Fuel is sucked from a float chamber 10 to a pump supply chamber 6, connected through pipe 13 to the pipe 8, through a metering orifice 15 controlled by a needle 17 actuated by an air-flow responsive valve 9, the fuel in chamber 6 being forced by pump 3 to the nozzles 2 via a distributor 23. The circuit of motor 4 is connected to the ignition circuit 26 and includes a switch 31 controlled by a device 34 actuated by the suction in pipe 1. When the engine is stationary the switch 31 is held open by the device 34 whereas at cranking speeds and above, the intake pipe suction lifts diaphragm 34 to close switch 31.
Patent GB-1165494-A (GB)
Title: Frequency-modulated Radar
IPC: G01S13/34
Filed: 1968-03-13
Abstract: 1,165,494. Radar. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 13 March, 1968 [16 March, 1967], No. 12219/68. Heading H4D. In a radar a frequency modulated signal frequency f runs linearly from frequency f 0  to frequency f 0  + #f 0 , signal f is frequency-multiplied by a factor n- and then emitted, the echo signal is mixed with a signal of frequency (n plus or minus one). f, the mixer output is passed through a band not less than #f 0 , the ensuing signal is mixed with a signal of frequency f and the resulting beat-frequency signal is fed through a low-pass filter to utilization means (e.g. a counter calibrated in distance). Correlation ranging, using a delay line and occurring at frequency f 0 , for ranging may be added.
Patent GB-281737-A (GB)
Title: Improvements in helicopters
IPC: B64C27/04
Filed: 1923-05-08
Abstract: 281,737. Brennan, L. May 8, 1923. Swivelling joints. - A universal joint, by which the car of a helicopter is suspended from the engine gear-box and through which explosive mixture is passed to the engine, consists of upper and lower members 33, 32 pivoted by ball-races 110, 111 on cross axes to a middle or gimbal member 112. Each member 33, 32 is shaped cylindrically and makes a gas-tight joint with the member 112 by leather packings 113 presed by comb-springs 114.
Patent GB-118451-A (GB)
Title: Improvements relating to Casting Machines.
Inventor: DAVIS WALTER
IPC: B22D11/06
Filed: 1917-08-28
Abstract: 118,451. Davis, W. Aug. 28, 1917. Casting - machines. -Consists in a casting-machine for lead balls &c. of the endless-chain type in which the moulds and runner blocks are divided on the central vertical plane, and ara guided so that the parts come together at the casting position. The halfmoulds a are connected by links b and are guided by bars f. Teeth g on their lower faces gear with a wheel by which they are driven. The pouring hole a<2> is circular above and of rectangular section when it enters the mould cavity. The half runner-blocks k are connected by links l and are guided by bars f<1>. Springs may be fitted to press the mould and runner-block sections together. Teeth m on the blocks engage wheels n by which they are driven. The gits are cut off by a knife o, Fig. 1, having an inclined edge o<2>; or they may be broken off by a wedge which separates the moulds from their corresponding runner blocks.
Patent GB-837055-A (GB)
Title: Improvements in or relating to the catalytic polymerisation of olefines and to catalysts therefor
Inventor: DALY NORMAN STANLEY
IPC: C08F10/00
Filed: 1958-04-18
Abstract: A polymerization catalyst comprises the product of mixing (1) compounds of a metal of Periodic Group IVa-VIIa and VIII, preferably of Group IVa, particularly halides, especially the compound TiCl4, with (2) an organic N-containing Al compound containing a N-Al bond, the amino group containing at least one N-H bond, e.g. (a) AlRR1NH2 or (b) AlRR1NHR11 wherein R, R1 and R11 are the same or different hydrocarbon, preferably alkyl, radicals.  It is preferable for constituent (2) to be prepared by reacting an Al trialkyl with ammonia or an aliphatic primary amine: compounds (2) specified are preferably amino-alkyl or amino Al dialkyls containing up to C5 alkyl groups, e.g. compounds of formula (a) wherein R=R1=C2H5, C3H7 or iso-C4H9 and compounds of formula (b) wherein R=R1=R11=C2H5, C3H7 or iso-C4H9, and R=R1=iso-C4H9, R11=iso-C3H7.  Said catalyst is used to polymerize olefinic compounds, especially ethylene, but also mentioned are propylene, butylene, butadiene and styrene. Specifications 799,392, 799,823, 801,031, 816,234 and 837,053 are referred to.ALSO:Alkylamino- and amino-Al dialkyls are prepared by reacting an Al trialkyl with an alkylamine (primary) or ammonia, respectively.  Specific examples of preparations are given for (1) NH2Al(isoC4H9)2 and (2) iso-C3H7NHAl(iso C4H9)2.  (1): NH3, dried over Al2O3 is passed into a vessel containing Al(iso C4H9)3 at 20-25 DEG  C. and, after heating under vacuum gave 80% of product.  (2): iso-C3H7NH2 (8.15 parts by weight) is added to Al(iso C4H9)3 (27.2 parts at ambient temperature and the mixture heated at 95 DEG  C. for 6 hours to give 27.8 parts of product (2).  The Al compounds are used as part of a catalyst composition for polymerization of olefins. Specifications 799,392, 799,823, 801,031, 816,234 and 837,053 are referred to.ALSO:Olefinic compounds, particularly ethylene, but also, e.g propylene, butylene, butadiene and styrene are polymerized at low pressure (preferably less than about 5 atm.) and preferably at about 30-50 DEG  C. in a non-aromatic solvent (e.g. iso-octane or light petroleum distillate, preferably when purified with conc. H2SO4, H2O, aqueous alkali, H2O and distillation over Na), by means of a catalyst formed by mixing (1) a Group IVa-VIIa or VIII metal compound(s), preferably a halide of Ti, Zr or Hf, particularly TiCl4 with (2) an organic N-Al compound containing an Al-N bond, specifically, e.g. NH2Al(isoC4H9)2 or isoC3H7 NHAl(isoC4H9)2.  The catalyst is preferably aged, e.g. for 20 to 30 minutes before use.  In polymerization, the catalyst concentration is preferably such that there is 5-15 millimols. of metal chloride per litre of reaction mixture.  The polymeric product is purified by means of ethanol, and dilute (e.g. 1%) acid and alkali.  Specifications 799,392, 799,823, 801,031, 816,234 and 837,053 are referred to.
Patent GB-575418-A (GB)
Title: Improvements in or relating to safety devices for use in fuze mechanism
IPC: F42C19/04
Filed: 1943-07-30
Abstract: 575,418. Fuzes for bombs &c. HEBARD, H. C., and IMBER RESEARCH, Ltd. July 30, 1943, No. 12404. [Class 9 (i)] An aerial bomb, flare, &c. is armed in two stages by a wind vane, which, in the first stage, prepares the fuze for firing, a safety-device then preventing operation of the fuze until withdrawn by further movement of the wind vane for a predetermined period. The invention is described with reference to the pressureoperated fuze mechanism described in Specification 561,931. On release of the bomb &c., rotation of a screw 4 by a wind vane normally housed in the casing 15, releases the casing 1 which then moves into contact with the screw 17, thereby preparing the fuze for firing. At this point a collar 7 on the screw spindle 4 engages the bearing 5 and the screw-thread on the spindle has moved out of engagement with the nut 31. At this stage, also, the striker 28 is still prevented by a pin 25 from firing the fuze, the pin being held against the influence of a spring 26, Fig. 2, by a longitudinal pin 21 connected by an inextensible flexible coupling 19 to a screw spindle 18 threaded within a screwed pinion 8 which gears with the screwed spindle 4. On further rotation of the spindle 4 by the wind vane, after the collar 7 has engaged the bearing 5, axial movement of the spindle is prevented and the pinion 8 is accordingly rotated, whereby the spindle 18 is moved in the direction of its length, thereby transmitting axial movement to the pin 21, after a shear wire 24 is sheared, thus freeing the pin 25 and releasing the striker 28 for actuation at the desired barometric pressure.
Patent GB-1390457-A (GB)
Title: Crystal-controlled digital clock
IPC: G04C17/00
Filed: 1972-03-16
Abstract: 1390457 Transferring mechanisms KIEINGER & OBERGFELL 16 March 1972 [16 March 1971 6 March 1972] 12413/72 Heading G4D [Also in Division G3] In a digital clock having units and tens of minutes drums 4, 5 and an hours drum 6, the drum 5 is smaller than the others and arranged eccentrically thereof so that projections 131, 110 on the drums 4, 5 can engage successive ones of abutments 130, 109 on the drums 5, 6 respectively to advance the latter drums by one unit at the appropriate times. The drum 6 is supported on a fixed spindle 7 and latched thereto by a star wheel 101 fixed to the spindle and a spring-loaded pawl 103 fixed to the drum. The other drums have similar mechanisms (not shown). The drum 6 rotates once in twentyfour hours and carries eight auxiliary drums 8-10 which are three-sided and are rotated around their own axes by engagement with a fixed cam ring 11. The spindle 19 of the drum 4 is rotated intermittently via a Geneva mechanism or a partially toothed gear to advance the minutes indication.
Patent GB-592130-A (GB)
Title: Improvements relating to the securing of upholstering or other fabric to wooden articles
IPC: A47C31/02
Filed: 1945-05-17
Abstract: 592,130. Seat bottoms and upholstery. COURTIAL, L. May 17, 1945, No. 12422 Convention date, Nov. 20, 1943. [Classes 52 (ii) and 52 (iv)] [Also in Group XXV] Spiked plates for securing fabric to furniture frames are formed with a plurality of rows of struck-up projections 1, 2, Fig 4, some of which are perpendicular to the plate to penetrate the frame 1 and others are folded to lie parallel to the plate to engage the fabric. Shaped upholstery pads can be mounted on a similarly shaped plate b, Fig 6, having projections 6, 7 to secure the padding and backing fabric t' respectively, the outer line of projections being alternately perpendicular 5 for driving into the frame and parallel 5a to secure the covering fabric e a covering strip 9 being adhesively secured to hide the edge.
Patent GB-885724-A (GB)
Title: Improvements relating to gas-containing metal coatings
IPC: C23C14/58
Filed: 1958-04-18
Abstract: A substrate is provided with a metal coating by evaporation in vacuo and a gas then sorbed into the coating.  The substrate is formed into a hollow cylinder and disposed co-axially about a heater wire which carries the metal to be evaporated.  After outgassing by either heating under vacuum or by discharge in an inert gas, the metal is evaporated on to the substrate and then contacted with the gas to be sorbed, sorption being aided, if necessary, with heat.  The substrate may consist of copper, molybdenum, nickel, silver, stainless steel or tungsten, the evaporated metal may be beryllium, lithium, niobium, titanium or zirconium, and the sorbed gas may be hydrogen, deuterium, tritium, oxygen or nitrogen.  Tritium-containing bodies may be used as sources of ionising radiation for the excitation of luminescence in phosphors and for the production of positive or negative ions, e.g. beta-particles.
Patent GB-552113-A (GB)
Title: Improvements in and relating to garden shears
IPC: A01G3/06
Filed: 1942-09-03
Abstract: 552,113. Gardening tools. CARVER, E. E. Sept. 3, 1942, No. 12447. [Class 6 (ii)] [Also in Group XIV] Garden shears, with two pivoted blades each rigidly connected to a long handle, have at least one handle 7, Fig. 1, so inclined that its grip 10 is forward of the fulcrum pin or pivot 4. The blades 2, 3 have shanks 5, 6 bent at an angle to the blades, preferably at angles of 53 and 73 degrees respectively. The shears 1 may be offset from the plane of the handles, preferably at an angle of 158 degrees, Fig. 2. For making a narrow trench between a lawn and a path, the shears may be inverted and drawn along, as shown by Fig. 3.
Patent GB-740341-A (GB)
Title: Maximum demand meter
IPC: G01R11/60
Filed: 1954-04-29
Abstract: 740,341. Supply meters. LANDIS & GYR AKT.-GES. April 29, 1954 [April 30, 1953], No. 12503/54. Class 106 (3). A maximum demand indicator having a signal contact 32 comprises a differential gear 29, 30, 33, 34 arranged on the arbor 18 of the indicating member 23 and operatively connecting together a control disc 31 for the signal contact 32, the indicating member 23 and a setting arm 35 for the control disc 31, the setting arm 35 being arranged to turn about the arbor 18 of the indicating member 23. The pointer 23 and sunwheel 29 are driven with the arbor 18 by a meter spindle 11 through a gear train broken periodically by an electromagnet 21, thus allowing a spring 22 to return the printer to zero determined by stop 28 leaving a frictionallymounted pointer 24 in the maximum position reached in any previous period. The contact 32 is actuated by a disc 31, mounted on the other sun-wheel 30, if driven to an extent predetermined by the setting of an arm 35 mounted on the planet carrier 33 and read against a reduced scale due to the 2: 1 reduction gearing. In a modification the maximum demand scale is used for setting the arm 35 by mounting the arm 35 on the free sun-wheel and forming the planet carrier as a control disc. The loss of fine adjustment thus caused may be made good by forming the planet carrier as a pinion meshing in a 1: 2 ratio with a pinion attached to the control disc.
Patent GB-1161654-A (GB)
Title: Process for Sodium Heated Modules
IPC: G21D5/08
Filed: 1968-03-14
Abstract: 1,161,654. Nuclear power plant. UNITED STATES ATOMIC ENERGY COMMISSION. 14 March, 1968 [19 May, 1967], No. 12568/68. Heading G6C. In a nuclear reactor power plant, the turbine steam circuit and the reactor sodium coolant circuit are thermally coupled by a secondary sodium system. The turbines 21, 26 receive steam from the superheater 7 and reheater 8 which are themselves heated by a sodium flow from the intermediate heat exchanger 4. The latter receives heat from the coolant sodium of reactor 1 through the lines 2, 3. The secondary sodium flow in the lines 5, 6 is controlled by the valve 27 and pump 28 so that half the temperature drop occurs across 7, 8 and half across the evaporator 15. Thus, ordinary stainless steel may be used for the evaporator and chromium stainless steel for 7 and 8.
Patent GB-271094-A (GB)
Title: Multiple thermionic valve amplifiers
IPC: H01J7/44
Filed: 1927-05-11
Abstract: 271,094. Loewe, S. May 12, 1926, [Convention date]. Vacuum tubes. - Components such as coupling condensers and resistances are mounted in the cap of an amplifying valve having several sets of electrodes, or in an adapter. As shown, condensers 8 and resistances 6 are mounted in an adapter 13 having sockets 15 receiving the pins of a multiple valve 1, and pins 16 for insertion in a holder.
Patent GB-1493421-A (GB)
Title: Refrigerated display case
IPC: F25D17/06
Filed: 1975-03-26
Abstract: 1493421 Refrigerators TYLER REFRIGEKATION CORP 26 March 1975 [4 April 1974] 12717/75 Heading F4H In a refrigerated display case 4 cooled air passes substantially only by slow, gravitational flow from an upper plenum chamber 6 through a perforated or porous plate 8 for diffusion into a space 12 housing a support tray 14 to a lower plenum chamber 16, the air being recirculated from the plenum 16 to the plenum 6 via a duct 24 housing air cooling means 26 and a fan 22 which maintains air in the upper plenum at a slightly greater pressure than that in the lower plenum. The support 14 may be perforate or imperforate and two secondary plenum chambers may be associated with the upper plenum to establish two diverging bands of slow moving air through the space 12. The low velocity of air over foodstuffs &c. on the support is stated to reduce drying thereof to a minimum.
Patent GB-528143-A (GB)
Title: Apparatus for controlling the rate of flow of a liquid
IPC: G05D11/03
Filed: 1939-04-28
Abstract: 528,143. Regulating fluid flow. SLATER, W. F., and GRIEVE, G. T. W. April 28, 1939, No. 12748. [Class 135] An apparatus for controlling the rate of flow of liquid is provided with a vessel arranged to be tilted to and fro in accordance with changes in the rate at which liquid is required to flow and with means for feeding liquid to the vessel to maintain the liquid level substantially constant therein while the liquid is discharged at one point at the required rate excess liquid is discharged at another point. Figs. 2 and 4 show the invention applied to an apparatus for use in supplying the softening solution in a lime water softening plant. Water entering a tank 1 through a pipe 2 passes under a baffle 6 and thence over a V-notch 3 to a tank from which it is withdrawn to the towers in which softening takes place. A float 9 adjustably secured to a lever 10 rides on the water in a supplementary tank connected by pipes 7 with the tank 1 so that the float rises and falls as the quantity of water flowing over the notch 3 varies. The lever 10 which is fitted with a spirit level 50 turns on bearing 12 and is counterweighted by a weight 40. A vessel 11 with a curved lower surface having its centre of curvature coincident with the bearing 12 is adjustably supported on the lever and has in one side a rectangular overflow notch 18 whereby the level in the tank is maintained substantially constant and on the other side a V-notch 14 fitted with a spout discharging into a funnel 16 connected by pipes 17 to the pumps for forwarding the softening liquid to the'softening towers. The overflow over the notch 18 falls into a collector 19 discharging through an aperture 20 on to a baffle which directs the flow through one of two troughs 21 leading to storage tanks for the softening liquid. Softening liquid is supplied to feed vessel 11 through a dip pipe 37 under a constant hydrostatic head maintained by supplying a slight excess of liquid to a vessel 33 and discharging the excess through an annular trough 34 and pipe 35 into the collector 19. According to the Provisional Specification a feed vessel similar to the delivery vessel is mounted to rock with the delivery vessel and is supplied with liquid at a fairly constant rate slightly in excess of that required by the delivery vessel. In another arrangement the lever is pivoted on a float in the feed vessel and the delivery vessel is arranged within the feed vessel so as to be more or less submerged as the lever tilts. The liquid flows over a weir into the delivery vessel and is discharged through a flexible connection. The delivery vessel may be arranged to receive and deliver an auxiliary stream of liquid into a displacement tank floating on a feed tank so that liquid from the feed tank is displaced as liquid flows into the displacement tank. The connection between the float and the delivery tank may be arranged to give other than proportional flow.