baber/WOPTO huggingface dataset:
Patent GB-106528-A (GB)
IPC: G03B31/02
Abstract: 106,528. Burns, J. May 23, 1916. Kinematograph apparatus. - Directions for actors &c. are projected on to the screen so as to be visible only to the actors, an obturating-device being provided to hide the directions from the spectators. In the construction shown in Fig. 1, the directions are projected upon a surface B at the back of a recess placed at an edge of and behind the picture screen A. The obturation-device D is made of a number of thin blades E arranged so as to be edgeways to the rays of the projecting-lantern. The obturating-device may also be placed in front of the picture screen, the directions being projected on the part of the screen covered by the obturating-device.
Patent GB-896131-A (GB)
Title: Cinematograph projectors
IPC: G03B21/18
Filed: 1959-03-26
Abstract: 896,131. Kinematograph projectors. ZElSS IKON A.G. March 26, 1959 [April 1, 1958], No. 10677/59. Class 97(1). Cinematograph projector incorporates two or more independent movably mounted rollers adapted to engage film running through the projector at at least two different transverse positions of the film, the rollers being so disposed and arranged as to occupy respective positions which are dependent on film tension, said rollers being operatively associated with switch means whereby the roller or rollers can switch off the film feed should the film tension at any one of said different transverse positions fall below a predetermined level. As shown, film 1 passes over rollers 2 and 4 and is engaged at marginal portions only by two movable rollers 3, 3<SP>1</SP>, mounted respectively on arms 6, 6<SP>1</SP>, pivotable about pins 7, 7<SP>1</SP> fixed preferably to the front and rear shields of the fire protection channel. The rollers press against the film due to their own weights, which may be effectively increased by spring biasing, and if there is a longitudinal or other break in the film with resultant decrease in tension, the appropriate roller will pivot on its arm to open switch 8 or 8<SP>1</SP>, (which are connected in series), and the film feed will thus be switched off. In modifications there may be several rollers with associated switches all connected in series, or a bridge may be hingedly connected to the two arms 6, 6<SP>1</SP> and arranged to operate a single switch.
Patent GB-679584-A (GB)
Title: Improvements in pipe couplings
IPC: F16L19/04
Filed: 1950-05-02
Abstract: 679,584. Pipe couplings. KAY, F. June 22, 1950 [May 2. 1950], No. 10786/50. [Class 99 (i)] A hollow thimble 1 has cylindrical and tapered parts 2, 3 fitting into correspondingly-shaped portions of a union socket 6, and a tapered end part 4, projecting from the limb, formed with ring-like serrations 5 that bite into the inner surface of the flared end of a pipe drawn on to the end 4 by a nut 13. There may be a ring 10 having a stepped recess 11, and a seating 16 in the socket for the thimble. The end 4 may be at an angle of between 30 degrees and 60 degrees to the axis of the thimble.
Patent GB-148004-A (GB)
Title: Improved means for holding globes, shades and the like on the galleries of gas and other lights
IPC: F21V17/00
Filed: 1919-05-01
Abstract: 148,004. Heath, A. W., and Brough, W. H. May 1, 1919. Globe or shade holders.-On the gallery A of a gas or other light is formed an ear 4 in which is pivoted a catch member C havng a curved arm 5, which on rotation of the member projects into the gallery and engages under the flange 9 of the globe or shade B. In this position a projection 13 of the catch member is caused to engage with a curved guard 12 to retain the member in position. When withdrawn for the purpose of removing the globe B, a hook formed on the end 6. Fig. 4, of the arm 5 catches against a portion 8 of the gallery which forms a stop.
Patent GB-230304-A (GB)
Title: Improvements relating to safety valves
IPC: F16K17/10
Filed: 1924-05-03
Abstract: 230,304. Babcock & Wilcox, Ltd., and Kemnal, Sir J. May 3, 1924. Safety valves.-A safety valve loaded by springs acting through toggle links has the valve member fitted with anti-scoring means. The valve member 1 has a main face 8 adapted to engage a seat 4 and a ported tubular part 6 adapted to co-operate with a corresponding sleeve 7 formed on the valve seat. The loading springs 9 are arranged on a rod 15 which has an eye 16 passing round the valve spindle, 10, between adjustable abutments 17, and bearing blocks 14. Toggle links 11 are arranged between these blocks and a fixed bridge 13 and links 12 between the same blocks and a collar 10<a> on the valve spindle. A forked casing lever 20 may also engage the collar 10<a>.
Patent GB-664554-A (GB)
Title: Improvements relating to spring heels for boots and shoes
IPC: A43B21/30
Filed: 1949-04-26
Abstract: 664,554. Spring heels for footwear. GRIFFITHS, H. E. April 26, 1950 [April 26, 1949], No. 10982/49. Class 17 (ii). Screw threaded ends 9a of springs 9 arranged in opposing recesses around the periphery of two flanged telescoping casings 5, 8 of heel shape are passed through holes 5c, 8c in such casings and engaged by nipples 10 to hold the assembly together in an adjustable manner. The casing 5 is secured to the lower face of the heel 6 by screws 7 before the casing 8 is applied.
Patent GB-513534-A (GB)
Title: Improvements relating to model aeroplanes and gliders
IPC: A63H27/00
Filed: 1938-04-11
Abstract: 513,534. Toy aircraft. MATTHEWS, P. W. April 11, 1938, No. 11012. [Class 4] A model aeroplane readily convertible into a glider, of the type consisting of a thin tubular body 1, a detachable nose-piece 6, and propeller shaft 7 rotatable therein, an elastic strip 9 detachably secured to the propeller shaft and anchored at the tail end of the body, and wings 12 and a tail-piece 5 detachably held to the body, is characterized in that the wings are detachably mounted on carriers 13 which pass under the body and are held thereto by rubber bands 14 passing under the carriers and up over the body, and that the,upper ends of the landing wheel struts 16 are a push fit in pockets 17 provided on the' inner ends of the wings. The tail piece incorporates a strip 3 which lies along the body and is held thereto by an elastic band 2. The rear end. of the driving elastic 9 is detachably connected to a wire 10 non-rotatably mounted at the tail of the body and constituting a skid. According to the Provisional Specification the wings may be detachably connected to a bearer above the body.
Patent GB-492153-A (GB)
Title: Improvements in or relating to machine tools particularly lathes or the like
IPC: B23Q5/14
Filed: 1937-02-12
Abstract: 492,153. Control of motors. SUNDSTRAND MACHINE TOOL CO. Feb. 12, 1937, No. 11034/38. Convention date, Feb. 29, 1936. Divided out of 490,427. Drawings to Specification. (Class 38 (iii)] [Also in Groups XXII and XXIV] A machine-tool has a member or carriage reciprocable longitudinally of a bed, drive means for reciprocating said member &c., at feed and traverse rates,' control means for said drive means actuatable to obtain movements of the member, including rapid approach and feed, and means for preventing, during the cutting operation, a change in the movement of the member &c., from feed directly to rapid approach, but permitting a change from feed to rapid return. The electrical arrangements for obtaining movement of the member or carriage are identical with those described in connection with Specification 490,427. Specification 490,434 also is referred to.
Patent GB-1217572-A (GB)
Title: Improvements in anti-microbic agents
IPC: A01N35/08
Filed: 1968-03-07
Abstract: 1,217,572. Compositions comprising phenols. HENKEL & CIE G.m.b.H. 7 March, 1968 [26 April, 1967], No. 11080/68. Headings A5B and A5E. [Also in Division C5] An antimicrobic composition comprises a bactericidal phenolic compound and a monohydric or polyhydric aliphatic alcohol having from 2-5 carbon atoms in a straight chain and substituted by at least one nitro group. The alcohol may be further substituted by a phenyl residue optionally carrying halogen atoms or nitro groups. Examples are given of an anti-microbic powder ointment and detergent, a deodorant spray and stick,- a hand washing paste and an antiseptic shampoo.
Patent GB-1428236-A (GB)
Title: Flame photometric detector
IPC: G01N21/72
Filed: 1973-03-07
Abstract: 1428236 Flame photometer VARIAN ASSOCIATES 7 March 1973 [8 March 1972 (2)] 11098/73 Heading G2J [Also in Division G1] In a flame photometric device, an end-on sighting of the flame is obtained by mounting the photo-detector 12 with its optical axis parallel to the axis of the burner 11. The burner comprises a tip 31 having a passageway therein for transmission of fuel and combustion gases and a passageway 34 surrounding the tip 31 for delivering a sample to the peripheral region of the flame.
Patent GB-678806-A (GB)
Title: Improved method of and apparatus for detecting gaseous halogens and halogen compounds
IPC: G01N21/72
Filed: 1951-05-11
Abstract: <PICT:0678806/III/1> A method for detecting the presence of gaseous halogens and halogen compounds in air which comprises heating in a flame an element carrying a trace of a sodium compound such that the sodium barely colours the flame in normal operation and introducing into the flame air suspected of containing halogen, a marked increase in the sodium colour of the flame indicating the presence of halogen. Apparatus for carrying out the method comprises a burner 32, a flexible exploring tube 40 for leading air containing halogen compounds to the primary air inlet and a wire 46 extending into the region of the flame of the burner and adapted to carry a trace of sodium.
Patent GB-933132-A (GB)
Title: Improvements in or relating to thread rolling machines
IPC: B21H3/04
Filed: 1961-03-27
Abstract: 933,132. Thread rolling. J. PLAGEMANN, [trading as PEEWEE MASCHINEN - UND APPARATEBAU W. PLAGEMANN]. March 27, 1961 [March 26, 1960], No. 11172/61. Class 83 (4). An hydraulic system for controlling the advance and reverse feed of a slide and associated roll of a thread rolling machine, ineludes a high pressure pump with a pressure relief valve, a throttle valve, and solenoid-operated slides for the advance and reverse feed, the advance feed of the slide and roll being in two movements separated by a brief pause while a blank is fed to the rolling position, the first movement being either in quick traverse or at the rate of advance for effecting the rolling operation. The slide 8 during its advance feed trips switches which control the position of solenoid operated slides 36 and 37, the position of the slides determining the paths of the outputs of high and low pressure pumps 33 and 34, and hence the direction and speed of movement of the slide 8. Each blank 11, after being rolled on a support 12 is ejected and trips a lever 23 which restarts the rolling cycle. A ram 15 feeds the blanks to the rolling position. Each slide 36 or 37 can take three positions to determine whether the pump outputs are fed to one or other side of the slide 8 or to a sump 35.
Patent GB-805189-A (GB)
Title: Improvements in or relating to electric frequency changing circuits
Inventor: GREEN DAVID ALBERT
IPC: H03D7/12
Filed: 1957-04-05
Abstract: 805,189. Transistor frequency-changing circuits. KOLSTER-BRANDES Ltd. April 5, 1957, No. 11186/57. Class 40 (6). In a frequency changer for a radio receiver of the kind comprising a transistor 4 which functions both as a local oscillator and as a mixer and has a parallel resonant circuit 10, 11 tuned to the local-oscillation frequency and the primary of an I.F. transformer 12 arranged in series with the collector electrode of the transistor, a resistor 25 is arranged in parallel with the parallel resonant circuit 10, 11 to reduce the collector load impedance at the local-oscillation frequency. The resistor 25 is smaller in value than the D.C. resistance presented. by the transistor under the conditions to which it is biased ; as a consequence the amplitude of the oscillations generated is limited by the periodic reduction of the collector current to zero instead of by the transistor being periodically driven into saturation as would occur in the absence of the resistor 25. Oscillations which thus have a larger current amplitude than would otherwise be the case are maintained by coupling the inductor 10 through an inductor 21 to the base of the transistor 4. The input radio-frequency signals are also applied to the base through the inductor 22 arranged in series with the inductor 21. Desired bias conditions for the transistor are achieved by potentiometer chain 15 and 16 and by resistor 6 shunted by a capacitor 7 and arranged in series with the emitter electrode. The resistor 25, modified in value in accordance with the transformation ratio, may be arranged instead in parallel with the coupling inductor 21 which may alternatively be connected in series between the resistor 6 and the emitter electrode.
Patent GB-1493208-A (GB)
Title: Electric switch
IPC: H01H7/02
Filed: 1975-03-18
Abstract: 1493208 Fluid dampers E MARQUARDT J MARQUARDT H MARQUARDT and E MARQUARDT [trading as J & J MARQUARDT] 18 March 1975 [22 March 1974] 16207/75 Heading F2S [Also in Division H1] A fluid damping device for the pivoted or flexed contact arm 1 of an electric switch comprises a sealed chamber 8 containing a fixed and movable laminations 11, 12 in a damping fluid and covered by a flexible diaphragm 9 through which forces are transmitted to and from the contact arm and actuating system. The movable laminations 11 are pivoted on pins 10 and are held in the "off" position shown by an arm 23 of the actuating mechanism acting through a slidable plunger 22 and spring 19. To close the contacts 3, 4 the arm 23 is raised whereby the contact spring 2 urges the contacts 3, 4 to the closed position, the movement being damped by a pivoted arm 15 engageable with the diaphragm 9 and having a projection 26 against which the contact arm 1 rests. More than one set of contacts may be arranged in the switch and some may not be damped so that a sequential closure is obtained.
Patent GB-1171714-A (GB)
Title: Four-Section Fully Hydraulically Operated Crane Boom
IPC: B66C23/697
Filed: 1967-03-09
Abstract: 1,171,714. Jib cranes. GROVE MFG. CO. 9 March, 1967 [15 March, 1966], No. 11244/67. Addition to 1,128,016. Heading B8B. A crane boom comprises four telescopic extensible sections 10 . . . 13 and three hydraulic rams 36, 57, 61 which interconnect the sections and are adapted to move the latter relative to one another. A hoist cable 15 extends to a hook assembly via a guide channel 17 on the section 10 and guides 56. Bearing pads, e.g. 28, are provided between the sections. The ram 36 extends between a pivot 37 on the section 10 to a pivot 38 on a housing 29 welded to the section 11, the ram 57 extends between a pivot 59 on the section 11 to a pivot 60 on a housing 45 rigidly connected by a flange 46 to the section 12, and the ram 61 extends between a pivot 63 on the section 12 to a pivot 64 on the section 13. The housing 45 has skids 47 which slidably bear on the section 13, the ram 61 extending between the skids. The boom may be used in stationary installations.
Patent GB-1287658-A (GB)
Title: An arrangement for reducing the unburned components in the exhaust gas of an internal combustion engine
IPC: F02P5/07
Filed: 1970-03-09
Abstract: 1287658 Purifying I C engine exhaust gases; timing ignition TOYO KOGYO CO Ltd 9 March 1970 [10 March 1969] 11266/70 Heading F1B Below a predetermined engine or vehicle speed a compressor 2 supplies air to the engine exhaust passage 9, e.g. an exhaust pipe or afterburning reactor, and the operation of a spark-plug 5 or one of a pair of plugs in the or each engine cylinder is such as to provide exhaust gases which are effectively burnt in the presence of the air supplied. In the embodiment shown, intake manifold vacuum is applied to a diaphragm 23, to close a valve 28 controlling an outlet 27 to atmosphere from the delivery passage 10 of the engine-driven compressor 2, when a speed sensor 3 closes the circuit of the solenoid valve 22 by means of the switch 13. At idling speed a switch 36 operated by a spring-biased diaphragm 43 closes the circuit of a contact breaker 35 providing normal ignition timing for the plug 5. Above idling speed with the carburetter throttle valve 41 opened, the diaphragm 43 is subjected to intake manifold vacuum and the switch 36 closes the circuit of a contact breaker 34 providing retarded ignition timing. When the engine speed exceeds the predetermined speed the speed sensor 3 operated the switches 13 and 14 to de-energize the solenoid valve 22 and close the circuit of the contact breaker 35. In a second embodiment, Fig.2 (not shown), the circuit of the contact breaker (35α) of one spark-plug (5α) is open below the predetermined speed and above idling speed to render the plug inoperative and the circuit of the contact breaker (35b) of a second plug (5b) is always closed.
Patent GB-621623-A (GB)
Title: Improvements in and relating to a pyrophoric lighter
IPC: F23Q2/40
Filed: 1946-04-12
Abstract: 621,623. Spring hinges. THORENS SOC. ANON., H. April 12, 1946, No. 11354. Convention date, May 3, 1945. [Class 65 (ii)] [Also in Group XI] A leaf-spring hinge connection for the lid 2 of a pocket lighter is such that the lid is held both in the open and closed positions. The leafspring 8 has upstanding lugs 9 which are notched to engage round an axle 10, which may be removably, mounted in notched plates 11 welded to the sides of the casing. The leaf-spring 8 acting in conjunction with the top edge of the casing wall causes the lid to be held in both its open and closed positions, the open position being such that the lid is held against the side wall of the casing. The spring 8 is forked to accommodate the snuffer cap 7 and is secured to an inner plate 14 of the lid 2 by wings 13 of a piece fastened by a screw 12 to such inner plate.
Patent GB-113591-A (GB)
IPC: F22B9/12
Abstract: 113,591. Rees, D. E. Dec. 12, 1917. Return-tube boilers.-The gases pass from the furnace A to the chimney G by two passages, one passage being through a flue I beneath the boiler and an external flue J and the other through smoke-tubes K above the furnace. Dampers M', M<2> are provided in the passages.
Patent GB-422903-A (GB)
Title: A new method of and apparatus for refrigerating
IPC: F25D3/12
Filed: 1933-04-18
Abstract: 422,903. Refrigerators. SOC. ANON. ASTERIA, Via Bettinelli, Castellanza, Italy. April 18, 1933, No. 11386. Void [Abridged as open to inspection under Sect. 91 of the Acts, April 18, 1933]. [Class 29] A cabinet is cooled by ice, e.g. solid carbon dioxide, disposed in a recess in the floor of the cabinet. Heat-conducting plates D are arranged between the ice and the cooling-space of the cabinet. The recess may be provided with a heatinsulated cover C. Fixed or movable wooden partitions F may be arranged between the plates D and the goods to be cooled. In a modification, the plates D are dispensed with and replaced by independent bars connected either directly or through a metal plate with the ice. The bars may be automatically disconnected from their association with the ice.
Patent GB-301266-A (GB)
Title: Improvements in and relating to centrifugal governors
IPC: G05D13/16
Filed: 1928-04-17
Abstract: 301,266. Garrard Engineering & Manufacturing Co., Ltd., and Slade, H. V. April 17, 1928. Centrifugal governors.-To reduce hunting and increase the speed of action of governors used with gramophones &c. elastic means are arranged in opposition to the means controlling the weights so that the action decreases with increase of speed. The spring blades d carrying the weights c are secured to a sleeve g fixed to the shaft and to a sliding sleeve secured to the brake disc e. The sleeve j has a collar k to which are secured springs l which press out the weights c in opposition to the spring blades d. As the radius of operation of the weights increases, they slide on the springs l. The friction reduces vibration and damps out underside fluctuations of the disc e. In a modification, the collar carrying the springs l is fixed to the shaft a.
Patent GB-1282425-A (GB)
Title: Improvements in or relating to optical systems
Inventor: FREEMAN MICHAEL HAROLD
IPC: G02B27/01
Filed: 1969-03-04
Abstract: 1282425 Head-up display PILKINGTON PERKIN-ELMER Ltd 27 May 1970 [4 March 1969] 11392/69 Heading G2J An aircraft head-up display system comprises a CRT 5 having a spherical convex screen 6 on which is shown visual information to be displayed to a pilot E, a concave spherical partial reflector 2 through which the pilot views the outside scene L, and a second planar partial reflector 4; the radius of curvature of the screen 6 is half that of the surface 2, and the screen 6 and the reflector 4 co-operate to produce a virtual image 6' of the screen which is concentric with and located at the focus of the spherical surface 2, so that light emanating from a display on the screen 6 is reflected from surface 4 to surface 2 and thence to the pilot who sees an image of the display superimposed at infinity on the outside scene. To reduce reflection by extraneous light from the surface 2, this surface may take the form of a 'spike mirror' adapted to reflect light within only a chosen narrow wavelength band, the CRT then emitting light only within that band. There may be some departure from exact sphericity, when surface 2 may have a conic or toric curvature, and the CRT may be replaced by a suitable optical imaging system.
Patent GB-963044-A (GB)
Title: New phosphacyclohexanes and their preparation
IPC: C10L1/26
Filed: 1962-03-26
Abstract: The invention comprises a 2, 4, 6-triaryl-1, 3-dioxa -5- substituted phosphacyclohexane of the formula: <FORM:0963044/C1/1> wherein A, A1 and A2 each represent phenyl, substituted phenyl or naphthyl, said substituents on the phenyl radical being halogen (e.g. Cl, Br or I) nitro, hydroxy, C1-C6 alkoxy, or C1-C6 alkyl and Z is 2-cyano-ethyl, phenyl or phenyl substituted by one of the above specified substituents. They may be obtained by reacting a primary phosphine Z.PH2 with the same or different aldehydes A.CH=O, A1CH=O and/or A2CH=O in the presence of an aqueous mineral acid. If desired the reaction may be carried out in the presence of a water-soluble inert organic solvent, e.g. tetrahydrofuran, dioxane, a C1-C6 aliphatic monohydric alcohol, acetonitrile, or the dimethyl ether of ethylene glycol. Suitable mineral acids are HCl, HBr, HI and H2SO4 and the reaction is generally effected at 0 to 80 DEG C. preferably 15 to 60 DEG C. The amount of aldehyde used is generally at least 3 moles per mole of the phosphine but the molar ratio of aldehyde to phosphine may vary from 2:1 to 10:1.  The products are suitable for use as additives for gasoline (see Division C5).  Reference has been directed by the Comptroller to Specification 883,262.ALSO:Gasoline contains as additive a 2,4,6-triaryl-1, 3-dioxa-5-substituted-phosphacyclohexane of the formula <FORM:0963044/C4-C5/1> wherein A, A1 and A2 each represent phenyl, substituted phenyl or naphthyl, the substituents on the phenyl radical being halogen, nitro, hydroxy, C1-C6 alkyl or C1-C6 alkoxy and Z is 2-cyanoethyl, phenyl or phenyl substituted by any of the above specified substituents (see Division C2).  Up to about 10 grams of the additive may be dissolved in one gallon of gasoline. Reference has been directed by the Comptroller to Specification 883,262.