baber/WOPTO huggingface dataset:
Patent GB-1331784-A (GB)
Title: Cine camera with a dissolve device
IPC: G03B19/26
Filed: 1970-10-02
Abstract: 1331784 Cine cameras AGFA GEVAERT A G 2 Oct 1970 [3 Oct 1969] 46960/70 Heading G2E A cine camera has a dissolve device comprising a rotary cam 2 driven by electric motor 19 when the device is switched on and the camera release is pressed, cam 2 operating firstly to close switch 21 in a circuit which progressively closes the diaphragm aperture 57 as film is loosely fed into a space in the cassette a spool, then, after 180 degrees rotation, to trip contacts 26, 27 to reverse motor 19 whereby the loose film is re-wound with the diaphragm closed, and finally, after a further 180 degrees, cam 2 opens switch 18 to stop the motor, the fade-in being provided after disconnection of the drive to cam 2 when film transport is switched on and switch 21 is opened to progressively open the diaphragm blades. The device is switched on by rotating knob 35 to lower slider 1 whereby pawl 3 locks takeup sprocket 38 against a friction clutch connection to motor-driven worm 37, and connected arm 4 depresses bell-crank 10 to engage gear 11 on eccentric 11a with worm 37. The eccentric reciprocates lever 14 carrying the spring-loaded pawl 15 which then rotates cam 2 by engaging teeth 2a. An inter-lock with slider 1 holds camera release 33 depressed so that the fade-out sequence cannot be halted. Fade-in may commence after rotation through 90 degrees of knob 35 to raise slider 1. In an alternative form, pawl 3 is selectively operable either as above with non-return cassettes to engage sprocket 38, or without engaging the sprocket of the cassette permits re-winding. The selective use of pawl 3 is controlled by a slider which senses the presence or absence of a groove on the cassette indicative of its type.
Patent GB-1030930-A (GB)
Title: Offset printing machine
IPC: B41F31/30
Filed: 1963-11-29
Abstract: 1,030,930. Printing-apparatus. L. G. DUBUIT. Nov. 29, 1963 [Dec. 13, 1962], No. 47295/63. Heading B6C. An offset machine, Fig. 4, suitable for printing on planar or curved articles comprises a framework including two side walls, an offset cylinder carrying a two-part blanket 1, a plurality of printing cylinders A, B, C, D in contact with said offset cylinder, a plurality of forme inking rollers a, b, c, d, and an inking train including sliding rollers al, a3 and distributing rollers a2, a4 associated with each forme inking roller, screws, Fig. 2 (not shown), for adjusting the printing cylinder A, for instance, against spring pressure being located in a plane at right-angles to a plane containing screws, Fig. 3 (not shown), for adjusting the associated forme inking roller a against spring pressure. The cylinders such as A are mounted in bearings slidably located in guides, machined in the said side walls. Each printing cylinder is adjusted peripherally by means of pinions, Fig. 5 (not shown), and the bearings are then locked to the side walls by screws. The printing cylinders may be axially displaced by screw members adapted to engage the shafts of the cylinders. The cylinder A may be removed without affecting the adjustment of the inking rollers. Inking.-The forme inking roller a, Fig. 3 (not shown), is supported in bearings which are slidable in guides in the side walls. The roller may be removed upon removing plate members. Offset surfaces.-The offset surface, Fig. 1 (not shown), comprises two plastic hemicylindrical members lined with an adjustable amount of polyurethane. The ends of the offset cylinder are threaded so that collars and threaded rings co-operate with the tapered edges of the members to secure them to the cylinder. Printing on curved surfaces.-Articles to be printed are mounted on mandrels 36a-36d, Fig. 6, supported on a rotatable disc 35, Fig. 6. The mandrels are carried by pins 38 which rotate in lever arms 39 rockable about an axis 40 of a socket 40<SP>1</SP> carried by a bar 41. Screws 42 are provided to adjust the articles with respect to the offset blanket. The bars 41 are radially adjustable to accommodate articles of different diameter. Bottles &c. are printed by removing the disc 35 and connecting the drive to a pair of sprocket wheels, Fig. 8 (not shown), carrying a pair of chains. Each bottle is placed on supports by a pneumatically driven member and engages a socket. The bottles are filled with compressed air before printing. If the bottles are conical the chains are arranged at different levels by rollers, Fig. 7 (not shown). Planar articles to be printed are fed on to the chains which move at the peripheral blanket speed. The machine is adapted to print in four colours.
Patent GB-1119718-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F01L1/26
Filed: 1966-10-21
Abstract: 1,119,718. L C. engine valve gear. MASCHINENFABRIK AUGSBURGNœRNBERG A. G. Oct. 21, 1966 [Nov. 20, 1965], No.47433/66. Heading F1B. An I. C. engine having at least three inlet valves 2, Fig. 1 and three exhaust valves 3 per cylinder has rings 5, 6 or ring pieces mounted in the cylinder cover 1 for rotation about the cylinder axis by a camshaft acting through rocker levers 17 mounted on fixed pivots 18, each rocker lever being engaged by one ring or ring piece and having an end portion engaging the associated valve stem. Rotational movement of the ring or ring piece imparts a rocking movement to the rocking levers to effect longitudinal movement of the associated valve stem. Each ring piece may extend over half the periphery. In another embodiment a high level camshaft acts directly on the bell cranks 7, 8.
Patent GB-1176665-A (GB)
Title: Air Conditioning Diffuser Unit.
Inventor: GRANT RAYMOND PATRICK
IPC: F24F13/062
Filed: 1966-10-24
Abstract: 1,176,665. Ventilators. R. P. GRANT. 19 April, 1967 [24 Oct., 1966], No. 47561/66. Heading F4V. An air stream diffuser comprises a movable element 3 connected by links 7 and arms 11 to a nut 10 engaging a threaded shaft 9 which cannot move axially, rotation of a central element 1 causing movement of the nut along the shaft and thereby raising or lowering the element 3. Arms 5 support an outer stationary element 4 and a further stationary element 2 is supported by struts 12 from the arms 5.
Patent GB-1308269-A (GB)
Title: Lead frames for integrated circuit devices
IPC: H01L23/498
Filed: 1971-10-14
Abstract: 1308269 Semiconductor devices MICROSYSTEMS INTERNATIONAL Ltd 14 Oct 1971 [31 March 1971] 47808/71 Heading H1K The ends of the fingers of a lead-frame to which the electrodes of a semi-conductor device are to be connected are partially embedded in a pad of polyimide material. The fragile fingers are supported by the pad from which they stand slightly proud to facilitate making the connections to the device. The ends of the fingers of the lead-frame may be reduced in thickness by etching or milling where they are to be embedded in the pad which may be circular, square or rectangular in shape. The semi-conductor device may have beam leads which are bonded to the ends of the lead-frame fingers or may be a flip-chip or may be connected by spider bording. A machine for simultaneously processing each member of a strip of lead frames comprises a set of punches which are raised to cut pads from a sheet of polyamide material and locate them against the underside of the lead-frame strip and a corresponding set of heated heads which are lowered onto the upper face of the strip to press the ends of the lead frame fingers into the polyimide pads which are softened by the heat conducted through the fingers.
Patent GB-1210836-A (GB)
Title: Double lever fastener
IPC: E05C3/12
Filed: 1968-10-09
Abstract: 1,210,836. Releasable fastenings. HART WELL CORPS. 9 Oct., 1968 [26 March, 1968], No. 47825/68. Headings E2A and E2B. A double lever fastener for securing a panel to a surrounding frame comprises a handle lever 1, connecting means 4 for pivotally connecting said handle lever to a said panel for approximately half-circle movement, a catch lever 5 engageable with a keeper pin 4 in said frame, pivot means 8 pivotally inter-connecting said two levers so that in use after the catch lever is engaged with the keeper pin, the catch lever makes approximately a quartercircle fastening movement during said approximately half-circle fastening movement of said handle lever, and the levers for release of the panel making corresponding reverse movements and holding means (i.e. a trigger lever 16) for holding said handle lever in the fastening position. In the construction shown the catch lever has parallel arms 6 which are joined by a connecting web 9 and the arms are also joined together by a hook end portion 10 which is engageable with the keeper pin. The panel is arranged to drop when the handle lever is swung through the approximate half circle so that the catch lever remains engaged with the keeper pin. The handle lever 1 remote from the pivot 4 is provided with a longitudinal slot and on each side of the slot there are parallel flanges 15 between which is journalled a trigger lever 16 by means of a pivot pin 17; the trigger lever is provided with a hook 19 adapted to engage a retainer pin 20 suitably secured to the panel and to release the handle lever, the trigger lever is pivoted by inserting a tool such as a screw driver or rod into a socket 25 in the trigger lever to rotate it clockwise against the bias of a spring 23. When the handle lever is released the handle lever can 'be rotated clockwise to cause the catch lever to pivot clockwise about the pin 11 after which the panel is lifted slightly and the catch lever disengaged from the pin 11.
Patent GB-1408920-A (GB)
Title: Rigid polyurethane compoitions
IPC: C08G18/28
Filed: 1972-10-17
Abstract: 1408920 Polyurethanes DOW CHEMICAL CO 17 Oct 1972 [21 Oct 1971] 47846/72 Heading C3R A composition which rapidly sets to a solid rigid urethane resin article having an elongation value of less than 100% and a density of at least 1 gram/c.c. on addition of an organo-metal catalyst comprises (A) a polyether polyol which is the adduct of a polyhydric initiator compound having a functionality of 3-8, with a vicinal epoxy compound, the polyol having a hydroxyl equivalent weight of from 60 to 230; (B) an organic polyisocyanate; (C) a liquid monohydroxy halogenated alkane having a boiling point below 150 C. and in which the hydroxyl group is reactive with an isocyanate group. In forming the rigid article components (A) and (B) are present in amounts so as to provide an NCO : OH ratio of 0À8 to 2, component (C) is present in quantities of 0À1-10% wt. of A + B + C; and the organo-metal catalyst is present in quantities of 0À02-5% wt. of A + B + C. Suitable components C are fluorinated, chlorinated and brominated ethanols and propanols. Suitable catalysts include organo metal compounds of Sn, Zn, Pb, Hg, Cd, Bi, Co, Sb and Fe such as stannous octoate, dibutyltin dilaurate, dibutyl tin diacetate, ferric acetyl acetonate, lead octoate, lead oleate, phenylmercuric propionate, cobalt napthenate, lead naphthenate and mixtures thereof. Suitable polyhydric compounds for component (A) include glycerine, trimethylolpropane, pentaerythritol, sorbitol, sucrose and mixtures thereof; and suitable epoxy compounds for (A) include alkylene oxides and substituted alkylene oxides such as ethylene oxide, propylene oxide, butylene oxide, epichloro(or bromo-, or iodo-)hydrin, styrene oxide or mixtures thereof. Suitable polyisocyanates as component (B) include tolylene diisocyanate, xylylene diisocyanate, hexamethylene diisocyanate, diphenylmethane diisocyanate, phenylenediisocyanate, hydrogenated methylene diphenyldiisocyanate, polymethylene polyphenyl isocyanate and mixtures thereof. Optional ingredients include inert fillers such as sand, microballoons, glass fibres, asbestos, aluminium granules, silicon carbide powder, colouring agents such as pigments, e.g. chromic oxide and ferric oxide, dyes, and mixtures thereof. In Examples 1-5 solid rigid polyurethane articles are prepared by mixing a polyether polyol prepared from glycerine and propylene oxide, tolylene diisocyanate, 2-chloro-ethanol, or 1- chloro-2-propanol, and lead octoate and pouring the mixture into a polyethyleneterephthalate tray or polyethylene beaker. In Example 6 the article is prepared from a polyether polyol of propylene oxide and pentaerythritol, xylylene diisocyanate, 2-chloro-ethanol and lead octoate. Uses.-A casting material for bearing surfaces, annular spacers, decorative objects, furniture, gears or other machine components, threaded protective plugs and caps.
Patent GB-1308270-A (GB)
Title: Phenylhydrazone derivatives the preparation thereof and compositions containing them
IPC: C07D317/32
Filed: 1971-10-14
Abstract: 1308270 Phenylhydrazones UPJOHN CO 14 Oct 1971 [27 Nov 1970] 47889/71 Heading C2C The invention comprises cyclic and non- cyclic ketols and thioketols of glyoxyloyl halide 1-phenyl hydrazones having the formula wherein R is an alkyl having 1 to 8 carbon atoms, holoalkyl having 1 to 8 carbon atoms, cycloalkyl having 3 to 10 carbon atoms, phenylalkyl having 7 to 12 carbon atoms, phenyl, and substituted phenyl having 6 to 12 carbon atoms selected from alkyl phenyl having 7 to 12 carbon atoms, alkoxy phenyl having 7 to 12 carbon atoms, halophenyl and combinations of alkyl, alkoxy and halo groups on the phenyl ring; the X's are independently oxygen, sulphur, sulphinyl or sulphonyl; Ra and Rb are each alkyl having 1 to 4 carbon atoms or taken together form an alkyl-substituted or unsubstituted ethylene or trimethylene group; Y is selected from halogen, alkyl having 1 to 4 carbon atoms, haloalkyl having 1 to 4 carbon atoms, alkoxy having 1 to 4 carbon atoms and alkymercapto having 1 to 4 carbon atoms; n is zero or an integer from 1 to 5 and Z is chlorine or bromine. They may be prepared by halogenating a 4-R-2,3,4-triketone 3-phenylhydrazone with an alkyl or alkaline earth metal hypohalite to obtain the corresponding 3-halo- 3-phenylazo-4-R-2,4-diketone and hydrolysing the latter to obtain an R-glyoxyloyl halide 1-phenylhy drazone wherein R is alkyl, haloalkyl, cycloalkyl, phenyalkyl, phenyl or substituted phenyl. The compounds of the invention may be used in the control of arthropod pests.
Patent GB-1435289-A (GB)
Title: Preparation of deuterated esters of carboxylic acids
IPC: C07B59/00
Filed: 1974-11-07
Abstract: 1435289 Deuterated esters of carboxylic acids PIERCE CHEMICAL CO 7 Nov 1974 48109/74 Heading C2C Deuterated esters of carboxylic acids are prepared by reacting a carboxylic acid with a deuterated alcohol in the presence of dimethylformamide di-neopentyl acetal. Exemplified is the reaction of a mixture of myristic, palmitic, palmitoleic, stearic and oleic acids with completely deuterated methanol and dimethylformamide di-neopentyl acetal to produce a mixture of the corresponding trideuteromethyl esters.
Patent GB-1511739-A (GB)
Title: Controlling pig iron refining
IPC: C21C5/34
Filed: 1975-11-24
Abstract: 1511739 Controlling converter steelmaking CENTRE DE RECHERCHES METALLURGIQUES-CENTRUM VOOR RESEARCH IN DE METALLURGIE 24 Nov 1975 [28 Nov 1974] 48140/75 Heading C7D In a converter steelmaking process employing oxygen blowing through a submerged tuyere the blowing is terminated when the intensity of sound emitted from the converter reaches a level corresponding to the desired carbon content of the bath, that level being determined from a predetermined relationship between noise level and carbon content which may have been obtained by statistical analysis of previous operations in the same installation. Intensity is preferably measured in the frequency range 20-13000 Hz, particularly < 100 Hz.
Patent GB-1488798-A (GB)
Title: Detection of pressure vessel closure failures
IPC: E05B17/00
Filed: 1973-10-17
Abstract: 1488798 Switches operated by impact IMPERIAL CHEMICAL INDUSTRIES Ltd 8 Oct 1974 [17 Oct 1973] 48271/73 Heading H1N A device for breaking an electric circuit when fractured as a result of the failure of the closure of a pressure vessel comprises a brittle electrical conducting element 11, Fig. 1, supported adjacent the closure and connected across a pair of terminals 12. In the embodiment of Fig. 1 the element 11 comprises a glass tube having a central dividing wall (22) Fig. 2 (not shown) for the major part of the length and coated internally with silver. One terminal is set each side of the wall so that the electric current must pass almost the length of the tube beyond the wall and return. The conducting element 11 is preferably of circular section so that it may be readily sealed in a flanged support 1. In a modification (not shown) the element may be a glass U tube coated internally and sealed at the open ends in a threaded cap carrying a pair of terminals for insertion in the ends of the tube. The supporting material may alternatively be of porcelain or brittle plastic.
Patent GB-1546269-A (GB)
Title: Power converter control
IPC: H02M1/08
Filed: 1977-11-21
Abstract: The control circuit contains a detector (10) for detecting a predetermined point in the cycle of the AC voltage (L1, L3) for the converter. The corresponding angular value of the AC voltage is calculated from the output signal of the detector in a synthesizer (12) and is passed, as an address signal in digital form, to a memory (14) in whose memory locations the optimum triggering sequence and triggering time of the valves of the converter are stored for each angular value. The memory output is connected to a triggering circuit (24) which converts the output signals of the memory into triggering signals for the valves of the converter. <IMAGE>
Patent GB-1065694-A (GB)
Title: Improvements relating to high power lasers
Inventor: DUNSMUIR ROBERT
IPC: H01S3/06
Filed: 1962-12-28
Abstract: 1,065,694. Lasers. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Dec. 30, 1963 [Dec. 28. 1962], No. 48884/62. Heading H1C. An annular crystal assembly 1, Fig. 2, is rotated at high speed about a light source 2, and provides an optical output from one or more fixed and partially-reflecting resonator systems 3 disposed about the crystal periphery. A continuous output is obtained if the rotating annulus is formed from a single crystal, e.g. ruby, or from a plurality of such crystals cemented together, while a series of output pulses is obtained if the crystals are spaced apart by a distance exceeding the width of a tuning system. The fixed resonator system 3 comprises either two reflecting optical flats, or a reflecting surface on or adjacent to one side of the annulus which co-operates with a fixed reflecting surface. Either or both reflecting surfaces may be partially reflecting and so provide the optical output. The speed of rotation selected is determined by the spontaneous emission lifetime of the active medium which for ruby doped with chromium is approximately 3 milliseconds. Consequently any excited elemental portion of the annulus must pass between the reflecting surfaces within this time, which gives an optional rotational speed of 20,000 r.p.m. Proportionally lower speeds are obtained by the use of a plurality of tuning systems equally spaced about the crystal periphery. A modification which also permits the rotational speed to be halved is the provision of a semi-circular reflector 4. Cooling may be effected by either gas blowers 5 or a liquid. The optical resonator may be modified by the use of a crystal of trapezium section. An arrangement is shown in Fig. 3 in which the output light path 6 from a rotating optical resonator system 3 is directed by prisms 7, 8 along the axis of a fixed annular crystal. It is stated that a straight or slightly curved crystal may be used in association with a resonator system, one of these components being fixed and the other reciprocated.
Patent GB-1574167-A (GB)
Title: Cooking apparatus
IPC: H05B3/74
Filed: 1977-11-24
Abstract: In known hot/cooking plates, in particular in glass-ceramic hot/cooking plates, there is provided in the central region of the cooking surface, below which a flat heater is located an unheated zone in which a temperature sensor of a hot/cooking plate controller is thermally coupled to the underside of the plate. With the aim of preserving an effective thermal contact between the pan base and temperature sensor even in the case of cooking pans which have an uneven pan base, in the present hot/cooking plate the unheated zone (3) with the temperature sensor (5) is arranged in the region of the rim of the cooking surface. <IMAGE>
Patent GB-1526308-A (GB)
Title: Audible bird scarer
IPC: A01M29/20
Filed: 1977-01-31
Abstract: 1526308 Bird scares AGRICAID Ltd 31 Jan 1977 [28 Nov 1975] 49016/75 Heading A1E [Also in Division H3] A bird scarer emits bangs at irregular intervals. A pseudo-random electronic timer energises an electromagnet 25 at irregular intervals of between 20 seconds and 40 minutes, causing a lever 28 to actuate a valve 5 to admit propane gas to the cylinder 8 of a single-acting piston. The piston is thus extended, pivoting a lever 40 against spring bias, and at the end of its stroke returning lever 28 to its initial position and thus actuating the valve 5. Gas is thus expelled from the cylinder 8 by the spring return of the piston and passes to an explosion chamber 3. Release of the lever 40 by the piston causes actuation of a piezo-electric igniter 13 producing a spark in the explosion chamber. A photoelectric cell disables the timer at night.
Patent GB-1330343-A (GB)
Title: Method of and apparatus for light-writing mask patterns
IPC: G03F7/20
Filed: 1970-10-15
Abstract: 1330343 Photographic projection printing PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 15 Oct 1970 [18 Oct 1969] 49029/70 Heading G2A A method of, and apparatus for, writing mask patterns on a photographic material 1 by means of light spot is characterized in that the length of the light spot in the direction of writing X is determined by two separately controlled boundaries A<SP>1</SP>, B<SP>1</SP>. The boundaries are controlled so that, for each infinitesimal element of a pattern element to be written, the time lag between the passages of the boundaries is constant. irrespective of accelerations on decelerations in the movement of the light spot relative to the material 1. The boundaries A<SP>1</SP>, B<SP>1</SP> are images of knives A, B, one of which is stationary with respect to a condenser 5 and a disc 6 and the other of which is movable with respect to the first. The dise 6 contains a number of transparent slits one of which is aligned with the gap between the knives A, B, thereby defining the transverse boundaries of the light spot, which is substantially rectangular. After passing through the gap between the knives A, B, light is reflected by a mirror 11 and a prism 10 through a lens 7 on to the material 1. The mirror 11 and prism 10 are mounted in a rotatable drum 9 so that writing may be effected in any desired direction by rotating A<SP>1</SP> and B<SP>1</SP>. Movement of the knife B is controlled by a device 8 in response to signals supplied thereto. The apparatus may be used to make photomasks for integrated circuits, on for the direct writing of mask patterns on a semiconductor material.