baber/WOPTO huggingface dataset:
Patent GB-529907-A (GB)
Title: Improvements in photometric apparatus for timing photographic exposures
IPC: G01J1/42
Filed: 1939-05-26
Abstract: 529,907. Photo-electric photographic exposure timing devices. BING, J. M. May 26, 1939, No. 15756. Convention date, March 6. [Class 40 (iii)] [Also in Group XX] An automatic exposure control system for photographic apparatus comprises a photoelectric cell 12 subjected to the scene brightness and connected to a bridge circuit 23, 24, 25 supplied with audible frequency current and provided with an audible indicator of balance 29 as described in Specification 506,219, a bridge adjusting member 30 the adjustment of which is a measure of scene brightness, and a resistance 31 adjustable by the same member 30 to determine the exposure time automatically. As shown, the control system is applied to an enlarger 10. In operation, switches 44, 43 are first closed to light the lamp in the enlarger and to energize the bridge circuit from a transformer 27. When the bridge has been balanced by the adjustment of member 30, the switches 44, 43 are opened, a piece of enlarging paper is placed on the easel 11, and then a switch knob 39 is pressed down and is held down by a catch 41. The lamp circuit is at once closed by contacts 37, and at the same time the circuit of resistance 31 is closed by contacts 34. After a given time, a thermal device 32, 33 deflects the catch 41 and thereby releases the switch knob 39 which is raised by a spring 45 and opens the contacts 37, 34, completing the exposure. The Specification as open to inspection under Sect. 91 describes also a reflex camera containing adjustable bridge resistances associated with its objective ; a sound generator or buzzer, a small battery for operating the buzzer, a telephone receiver, and further bridge resistance in the bottom of the casing ; and a photo-electric cell on the ground glass covered by the collapsable hood. This subject-matter does not appear in the Specification as accepted.
Patent GB-318476-A (GB)
Title: Improvements in or relating to rotary internal combustion engines
IPC: F02B53/00
Filed: 1928-05-30
Abstract: 318,476. Brown, R. C. May 30, 1928. Addition to 219,891. Fixed-abutment type; working-fluid supply; balancing moving parts; cooling parts. - Therotary internal-combustion engine of the parent Specification is modified by the provision of a number of cylinder portions each co-operating with a pair of sliding vanes in the rotor, the pairs of sliding vanes and the eccentric cylinder portions being angularly arranged so that the rotor is substantially balanced. An engine is shown having two cylinder portions 5, 5<1> and two pairs of vanes 8, 9, 8<1>, 9<1> arranged at 180‹ to each other; internal water cooling chambers 10, also at 180‹, are formed in the rotor 1 between the pairs of vanes. The transfer of the charge past the line of contact of the rotor and cylinder after compression between the pair of vanes may be effected by a peripheral groove in the rotor but is shown as taking place through a transfer passage 28 in the casing which is controlled by rotary trunk valves 29, 30 which also control the admission and exhaust passages 26, 27. The valves are actuated at half-speed through worm gearing 33, 34 and a chain drive from the rotor shaft. An alternative form of rotary valve is shown in Fig. 4 for effecting the admission, transfer, and exhaust of the charge. The timing of the valves is arranged so that an expansion stroke in one cylinder coincides with the induction stroke in the other cylinder. The admission and exhaust may be controlled by a gear-driven ported peripheral sleeve in the cylinder with which the vanes contact. The sliding vanes of the rotor are actuated by fluid-pressure through a valve device, Fig. 3, which comprises a loosely fitting piston 14 with an orifice 17 closed by a spring- pressed needle valve 19. Pressure-fluid admitted through a duct in the rotor shaft and passing to a duct 22 acts on the piston 14 and opening the needle valve 19 enters the vane slot 7 to move the vane outwardly. When the vane moves inwardly the needle valve 19 closes, whereupon the fluid pressure acts on the loose piston 14 to move it against a spring 16 to relieve the pressure. The orifice 17 is adjustable by a screw 18.
Patent GB-1309711-A (GB)
Title: Control systems and methods
IPC: H02P23/00
Filed: 1971-05-19
Abstract: 1309711 Automatic control of speed  CHANDLER EVANS Inc 19 May 1971 [21 May 1970] 15870/71 Heading G3R  The cyclic output of a tachometer connected to  a combustion engine is fed to a circuit 10 producing an output pulse train having pulse width commensurate with the actual instantaneous speed of a rotating member of the engine. The pulse train enables an AND-gate 12 to pass a train of high frequency pulses from a clock source 14 to a digital counter 16 for a period inversely proportional to the actual speed of the engine. The counter is interrogated by a logic circuit 18 comprising decision gates which are enabled at binary numbers corresponding to specific speeds. The actual speed of the engine is thereby classified into three states above, below or within a predetermined deadband. Depending on the classification, a 'down' trim gate 20, or an 'up' trip gate 22 is enabled to pass a drive signal from a circuit 24 to an electromechanical control mechanism not shown, such as solenoids moving a fuel flow regulator. The circuit 10 comprises a filter, to remove noise, a squaring circuit for shaping the signal to a square wave and a bi-stable circuit responsive to the trailing edge of the square wave to generate a true 50% duty cycle. The output of the circuit 10 is modified to reset counter 16 and transfer the classified information to the trim gates. The clock source comprises a crystal oscillator and the clock frequency may be varied by selection from a plurality of oscillators or the adjustment of a variable frequency oscillator.
Patent GB-168999-A (GB)
Title: Improvements in or relating to suspending means for curtains
IPC: A47H1/19
Filed: 1920-06-14
Abstract: 168,999. Cobb, L. R. June 14, 1920. Curtains, suspending. - A fitting for keeping taut a supporting-wire for a curtain comprises a baseplate A<1> provided with opposed ear-pieces A<2> in which is mounted, so as to be slidable endways therein, a turn-pin D to which one end of the supporting-wire is attached. As shown in Fig. 3, the turn-pin is prevented from rotating when moved to the limit of its travel in one direction by a square portion F which may engage with the square hole E in one ear-piece. A washer H prevents accidental withdrawal of the pin D.
Patent GB-587688-A (GB)
Title: Improvements in synthetic fog or smoke
IPC: C06D3/00
Filed: 1944-08-23
Abstract: A smoke composition comprises titanium tetrachloride together with a small proportion (preferably 0.1 to 0.2 per cent.) of phosphorus; which latter, before admixture, may be dissolved in several, e.g., 5 to 10 times its weight of carbon disulphide. Carbon tetrachloride may be added to reduce the fire hazard.  The composition may be stored in and distributed from a metallic, e.g., steel container charged with compressed or liquid carbon dioxide, and provided with replaceable nozzles which can be of various sizes and may produce jets or sprays. p  The Specification as open to inspection under Sect. 91 comprises also a composition including a vanadium compound and titanium tetrachloride treated with zinc oxide.  This subject-matter does not appear in the Specification as accepted.
Patent GB-889247-A (GB)
Title: Method and apparatus for recovering metal from scrap
Inventor: FOSTER THOMAS WILLIAM FREDRICK
IPC: F27D99/00
Filed: 1959-05-11
Abstract: 889,247. Recovering aluminium and aluminium alloys from scrap. KAISER ALUMINIUM & CHEMICAL CORPORATION. May 11, 1959. No. 16111/59. Class 82(1). [Also in Group XII] A method of melting aluminium metal or alloy, e.g. scrap, comprises the steps of having a body of fused salt 7 in a first chamber 3 consisting of a mixture of Na Cl, KC1 and a fluoride constituent less dense than the metal or alloy and maintained above 1300‹F., continuous withdrawal of the salt therefrom for introduction into a second chamber 4 so as to give intimate mixing with metal or alloy therein, and passing the mixture into a third chamber 5 below the surface of the salt in chambers 4 and 5, wherein substantially all of the metal or alloy fuses and settles to the bottom of chamber 5, the fused salt rising to the surface for continuous withdrawal to the chamber 3. The Na Cl and KCl may be 15 to 65% and 85 to 35% in relation to each other, the fluoride being 2À5 to 5% of the total fused salt. The apparatus used comprises a heatable salt-melting receptacle for the chamber 3 (Fig. 3) and a heatable metal-melting reinto the with a partition 55 to divide it ceptacle 2 chambers 4 and 5 (Fig. 4) above a passage 8, a motor-driven pump 6 in a zone 17 and conduit 11 for the transfer of fused salt from the chamber 3 to the open chamber 4, charged by a shoot 34 (Fig. 2), fused salt being returned to the former from the chamber 5 through a further conduit 9 and trough 51. Molten metal is removed, after tilting the receptacle about trunnions to decant fused salt away, through a tap hole 48 and a skim of aluminium oxide and fused salt a layer in the chamber 5 between the pure salt on the surface and the molten metal may be removed by another suitable opening on tilting the receptacle 2 about other trunnions thereafter.
Patent GB-1423398-A (GB)
Title: Jig
IPC: B23H11/00
Filed: 1973-04-04
Abstract: 1423398 Electro-erosion; workpiece clamping KOTOBUKI DIE CASTING CO Ltd 4 April 1973 [7 April 1972 27 April 1972 24 May 1972 (3) 6 July 1972] 16191/73 Headings B3V and B3B A jig for holding an electro-erosion electrode C or a workpiece comprises a body 21 having an axial channel 22, a holder 31 for supporting the electrode C or workpiece and a bolt 28 for pressing two perpendicular flat surfaces of the holder 31 against contact surfaces 23 of the channel 22. In one embodiment, an electrode C is held by a bolt 33 to a holder 31 which is held against two flat surfaces 23 of a bore 22 in the jig body 21 and against an upper stop 30 by a bolt 28 engaging a notch 42 in the holder 31. The lower surface of the holder 31 is provided with projections 47 for indenting the electrode C to facilitate the resetting thereof. The precise position to be machined may be determined by substituting the holder 31 for a tool (Fig. 10, not shown). Debris produced by machining may be removed by suction via a bore 24 or oil under pressure may be supplied to a bore 39 in the electrode C via the bore 24. In another embodiment (Figs. 5 and 6, not shown) the jig body 21 is U-shaped and is connected by bolts (46) passing through screw holes 29 to a disc (45) which is attached to a shaft of the E.D.M. apparatus. The jig body 21 may be provided with grooves (49) (Figs. 13 and 14, not shown) which enable it to be clamped by claws (G, H), (53) to a chuck or to a plate (51). The jig may alternatively be mounted on a table of a machine tool (Fig. 15, not shown) or in a vice (Fig. 16, not shown). The faces 23 of the bore 22 in the jig body 21 may be provided with ridges (50) (Fig. 13).
Patent GB-582843-A (GB)
Title: Improvements in or relating to aerial bombs
IPC: F42B15/10
Filed: 1939-06-01
Abstract: 582,843. Bombs dropped from aircraft. BURNEY, SIR C. D. June 1, 1939, No. 16203. [Class 9 (i)] A bomb which dives quickly on launching from aircraft has aerofoil surfaces or wings which, as the result of the forward motion, impart a downward thrust to the bomb. The bomb 2, Fig. 1, first moves in an arcuate path and then falls vertically. Fig. 4 shows in end view the bomb 2 provided with tail surfaces 6, 7 and inverted wings 8. The wings are carried at the lower side of the bomb to the rear of the C.G., the downward thrust at the centre of pressure P and the reaction of the tail surfaces causing the axis of the bomb to move tangential to the arcuate path. The wings are attached by a band 10 released by the removal of a pin 19 connected by a cable with mechanism in the tail of the bomb which acts by time, distance, or gyroscopic control to shed the wings when the bomb commences to fall vertically. Fig. 14 shows a " distance " control for the release mechanism in the form of a propeller 22 which rotates a screw 25 to move a nut 26 actuating through a lever 29, the cable 21 connected to the pin 19. Further, the same mechanism serves to control a tail fin 53 initially set to diving position but restored to inoperative position by a rotary detent 57 when the wings 8 are shed. In this construction the movable tail fin is provided when the C.G. of the bomb and the centre of pressure of the wings are in the same plane. Similar means for shedding the wings under time control is actuated by a gapped cam rotated by a clockwork mechanism, or the nut 26 may close an electric circuit for exploding a cartridge to move the lever 29. Fig. 9 shows a gyroscope 40 with contacts 42 for closing a circuit through a battery 35 to fire a cartridge 36 to operate the lever 29 to remove the pin 19 when the bomb assumes the vertical position. Fig. 15 shows a modification in which a gyroscope 42 inclined at 45 degrees closes a contact 39 to blow out the pin 19, the same gyroscope controlling the valve 63 of a servomotor 60 for actuating a rudder 59 and/or elevator ailerons to control the bomb as to direction and /or roll with respect to the vertical plane of fall.
Patent GB-1524900-A (GB)
Title: High solids active clay coating formulations and methods for producing and applying the same
IPC: B41M5/155
Filed: 1976-04-21
Abstract: 1524900 Coating composition; clay; chalk MOORE BUSINESS FORMS Inc 21 April 1976 [20 June 1975] 16203/76 Heading C1A [Also in Division D2] A formulation for coating receiver sheets in carbonless copying systems comprises water, an "active bentonite-type clay", an inactive material selected from kaolinite, chalk, and a mixture of chalk and kaolin, and a binder, the formulation having a solids content of from 43% to 60% by weight and a viscosity of from 700 to 7000 cps. An "active bentonite-type clay" is a bentonite clay containing montmorillonite, an acid-leached bentonite clay as defined in the Specification, or montmorillonite.
Patent GB-443327-A (GB)
Title: An improved method of making hats
IPC: A42B1/14
Filed: 1935-06-04
Abstract: 443,327. Hats. SUTTON, A., 14, King's Close, Hendon, London. June 4, 1935, No. 16219. [Class 63] A method of making a hat to resemble a straw hat, consists in blocking or pressing a sheet of woven wire to the desired shape preferably at a single operation, and then coating the wire shape completely, e.g. by dipping, with a cellulosic substance, preferably paracellulose, in such a manner that the cellulosic substance completely fills the interstices of the woven wire. Specification 10628/15, [Class 63], is referred to.
Patent GB-387897-A (GB)
Title: Improvements in the transmission mechanism of thermostatic regulators for stoves andfurnaces
IPC: F23N3/04
Filed: 1932-06-08
Abstract: 387,897. Regulating air supply to stoves. KOSMOS HEIZUNGSARMATUREN- & METALLWARENFABRIK, and BAUMEISTER, F. X., 40, Schillingsrotter Weg, Rodenkirchen, near Cologne, Germany. June 8, 1932, No. 16221. [Class 126.] In a thermostat mechanism controlling an air damper of a stove or furnace, and comprising an operating lever c<1> on a rockshaft c, the thermostat a engages a dog or driver d which is angularly adjustable on the shaft c, so that when installing the apparatus the position of the lever c<1> may be varied in accordance with the relative positions of the thermostat and damper. Other adjustments may be provided, as in the apparatus shown, in which the rock-shaft is mounted in bearings b<1> in a cap b which may be rotated and secured in any desired angular position ; further, the effective length of the operating lever is adjustable, either by making the lever in telescoping parts c<1>, c<11>, Fig. 2, or by slidably mounting it in the end of the shaft c, Fig. 3. Further, the shaft c is axially adjustable, and may be reversed end for end to bring the operating lever to the other side of the apparatus.
Patent GB-1010007-A (GB)
Title: Improvements in and relating to football boots and shoes
IPC: A43C15/16
Filed: 1964-04-20
Abstract: 1,010,007. Football studs. EUGAN BRœTTING, [trading as EUGAN BRUITING MODELLSCHUHE]. April 20, 1964 [May 11, 1963], No. 16240/64. Heading A3B. A stud 1 for a football boot is screwed on to a threaded member 8 projecting from a pressure distributing plate 3 which is fixed to the bottom of the boot by pins or spikes 4 driven through the bottom of the boot, the pressure plate projecting beyond the periphery of the stud and having a concave shoe-engaging surface. The pins or spikes, which lie outside the area of contact between the stud and the plate, may pass through holes in the plate or be integral therewith, and the inner ends are bent over the insole 7. The plate, e.g. of aluminium, may be elongated, as shown, and the narrow longer portion arranged towards the heel. A driving tool is shown at 10.
Patent GB-184931-A (GB)
Title: Improvements in and relating to electric motors
IPC: H02K16/02
Filed: 1921-06-13
Abstract: 184,931. British Thomson-Houston Co., Ltd., and Clough, F. H. June 13, 1921. Spindle-driving apparatus.- The spindles and bobbins of flyer spinning - machines are driven by an alternating-current motor which comprises two rotors 6, 7 connected respectively to the spindle and bobbintube. The inner rotor 6 is formed with definite poles so that it rotates synchronously and the outer rotor 7 is formed as the rotor of an induction motor. The drag of the yarn increases the slip of the rotor 7 so that the bobbin tube rotates at a slightly less speed than the spindle. The difference in speed between the two rotors may be adjusted to any desired extent by varying the voltage supplied to the stator winding.
Patent GB-481351-A (GB)
Title: Improvements in or relating to telephone receivers
IPC: H04R1/22
Filed: 1937-06-11
Abstract: In a telephone instrument of the magnetic diaphragm type, the polepieces are preferably formed of nickel-iron alloy in the proportions 45 : 55 and the diaphragm is made of an alloy of cobalt, iron, and vanadium in the proportions 49 : 49 : 2.  The steel for the permanent magnet is composed of iron, cobalt, and molybdenum in the proportions 72 : 12 : 16. p
Patent GB-107914-A (GB)
Title: Improvements in and relating to Variable Advertising Devices.
Inventor: CARTER MCION JAMES DOUGLAS
IPC: G09F7/08
Filed: 1916-11-15
Abstract: 107,914. Carter, M. J. D. Nov. 15, 1916. Loose-letter and like signs.-In interchangeable letter signs in which the letters are suspended on wires, each wire is stitched between a pin and a screw or a pair of screws. Fig. 1 shows one construction. The frame or moulding A is provided with recesses or grooves B for the pins and screws G, C between which the wires F are stretched, and the backing I, which may be transparent or otherwise, is secured in a rabbet H by a turnbutton J, or slides in grooved slots such as K. A glazed front may be fitted to cover the recesses B, being secured by corner fittings.
Patent GB-667403-A (GB)
Title: Improvements in or relating to the manufacture of organic compounds
Inventor: OCKRENT CHARLES
IPC: C07C37/62
Filed: 1949-06-20
Abstract: Chlorinated derivatives of m-benzylphenol with 1, 2 or 3 atoms of chlorine in the phenol nucleus are obtained by chlorinating with chlorine or sulphuryl chloride in presence of an organic solvent, or in caustic alkali with chlorine, and a trace of iron as catalyst with sulphuryl chloride.  Cl enters the 2, 4 and 6 positions of the phenol residue.  Examples are given of the preparation of the mono-, di- and tri-chlor derivatives by the use of chlorine, and of the monochlor derivative with sulphuryl chloride.
Patent GB-1211184-A (GB)
Title: Pressing of glass articles from molten glass
IPC: C03B11/00
Filed: 1969-03-28
Abstract: 1,211,184. Moulding thin glass articles. CORNING GLASS WORKS. 28 March, 1969 [1 April, 1968], No. 16400/69. Addition to 1,156,852. Heading C1M. In the method according to the parent Specification 1,156,852, particularly for forming relatively thin glass articles from glasses having a relatively short working range, the step of indexing the mould downwardly is removed and the mould is moved upwardly to press-form the molten charge. It has been found that, with the mould initially in its downward position, there is not undue splashing from the glass delivery orifice and the plunger is then immediately positioned above the mould.
Patent GB-1478277-A (GB)
Title: Rotary tubular grinding mill with direct drive
IPC: B02C17/18
Filed: 1975-04-21
Abstract: 1478277 Tube mills FIVES-CAIL BABCOCK 21 April 1975 [23 April 1974] 16424/ 75 Heading B2A A tube mill comprises an electric direct drive motor, the rotor 25 including a member 28 which is secured to an assembly including a sleeve 24 at one end of the mill. The rotor cooperates with a starter 32, the tube being supported in pairs of bearing slots 20, 22. A frusto-conical feed conduit 36 may be cooled by gas flow within the space surrounding it. One bearing ring 18 is free to slide on its shoe 22 to accommodate expansion effects due to heating. The sliding surfaces of the support ring 16, the surface of the member 28 the end portion 12 of the mill drum 10 the sleeve 24 and the rotor 25 are assembled and machined in a single operation to ensure perfect concentricity.
Patent GB-950147-A (GB)
Title: Fuel compositions
IPC: C10L1/10
Filed: 1962-04-30
Abstract: A fuel composition comprises (a) a major proportion of a hydrocarbon base boiling in the gasoline boiling range and having a research octane No. of at least 90; (b) an octane number-improving amount of an organic-metal-containing anti-knock agent which is a tetraalkyl lead, cyclopentadienyl nickel nitrosyl, methyl-cyclopentadienyl manganese tricarbonyl, tris-(acetylacetonate) iron III, nickel 2-ethylhexyl salicylate, bis-(N-butyl salicylaldimine) nickel or vanadium acetyl acetonate; (c) less than 2% by volume of a hydrocarbon-soluble co-anti-knock agent having the formula <FORM:0950147/C3/1> where R1, R2 and R3 are alkyl, alkoxy, cycloalkyl or aralkyl groups having not more than 8, 8, 15 and 15 carbon atoms respectively, and E represents a formyl, alkyl, carbonyl or arylcarbonyl group; and (d) a co-anti-knock extender having the general formula R-O-R1 where R is a C1- 7 alkyl, or aryl, aralkyl or alkaryl group, and R1 is hydrogen, C1- 7 alkyl, or aryl, aralkyl or alkaryl group, with the proviso that if (d) is a dialkyl ether at least one of the alkyl groups is branched.  The hydrocarbon base (a) may be pure hydrocarbon or a mixture of hydrocarbons containing at least two hydrocarbon types, examples being given. Typical additives for (c) are tertiarybutyl acetate, and 2-acetoxy-2-methyldecane. Additive (d) may be one of numerous specified ethers and alcohols, including commercial diisopropyl ethers containing small amounts of ethyl and isopropyl alcohols, ethyl isopropyl alcohol, water and C6- 12 propylene polymers.  Optional additives which may be present include halogen-containing lead scavengers, organic esters of phosphoric and phosphorous acids (examples given), alkyl boronic acids, polymerized linoleic acids, N,C-disubstituted imidazolines, 2,6-ditert. butyl-4-methylphenol N,N1-disalicylal-1,2-propane diamine, hexylene glycol diacetate and 1,4-dipropionyloxy-4-methyl undecane.