baber/WOPTO huggingface dataset:
Patent GB-1354442-A (GB)
Title: Additives for lubricating and fuel oils
IPC: C10M159/12
Filed: 1972-06-28
Abstract: 1354442 Polyolefin derivatives RHONEPROGIL 28 June 1972 [8 July 1971] 30289/72 Heading C3P [Also in Division C5] Lubricating and fuel oil additives are prepared by reacting diphenylolpropane with a succinic acid or anhydride substituted by a substantially saturated hydrocarbon radical of at least 30 carbon atoms derived from a polyolefin, and neutralizing the resulting product with an amine. The substituted succinic compound may be a reaction product of maleic acid or anhydride with polyethylene, polypropylene, polybutylene, polyisobutylene or a chlorinated polyolefin. The amine may be a polyethylene polyamine. The esterification with diphenylol propane may be effected in the presence of a catalyst, e.g. pyridine, pyridine hydrochloride, p-toluenesulphonic acid or sulphuric acid, and an entraining solvent, e.g. xylene or toluene. In examples polyisobutylene/maleic anhydride reaction products are esterified with diphenylol propane and the products neutralized with (1,2,4,6 and 7)tetraethylene pentamine and (5) triethylene tetramine.
Patent GB-1274917-A (GB)
Title: Improvements in and relating to quick release plunger mechanisms
IPC: A61M5/20
Filed: 1969-06-16
Abstract: 1,274,917. Automatic surgical injector. REX CHAINBELT Inc. 16 June, 1969 [28 June, 1968], No. 30302/69. Heading A5R. [Also in Divisions E2 and Fl] An automatic plunger release mechanism comprises a barrel 12, a spring 26 biasing a plunger 14 movable in the barrel between a retracted and extended position, lockable in its retracted position by means of balls 42 which engage recess 54 in the plunger 14, the balls being supported in a ball carrier 34 movably mounted on a guide 30 fixed to barrel 12, the balls 42 being engageable by an actuator 46 which is attached to a sleeve 44, movably supported on barrel 12. In operation, the device is initially cocked as in Fig. 2 and may be used to drive the needle of a serum injecting mechanism 25 (not described) mounted on a thread 24 on an adaptor 20. The carrier is engaged with a resistant surface and sleeve 44 is moved to the left, compressing spring 52, and causing actuator 46 also to move to the left so that balls 42 move free of portions 50 of the actuator. When this occurs, spring 26 drives plunger 14 in the direction of the arrow and head 56 cams the balls 42 outwards into bores 40 in the carrier 34. The plunger is then free for movement under spring 26 and carrier 25 is removed. To re-cock the mechanism (see Figs. 3 to 6), the exposed end of plunger 14 is engaged with a resilient surface and a force is exerted on cap 32 to compress spring 36. Head 56 engages balls 34 and moves them and the carrier 34 to the right until the balls pass locking portions 50 and are adjacent cam surfaces 48. Continued pressure then forces the balls outwards and head 56 moves past the balls. Then carrier 34 is free and spring 52 moves carrier 34 relative to actuator 46 so that locking portions 50 on carrier 34 engage the balls. The operation continues until head 56 abuts cap 32, when the force is removed. Carrier 34 continues to move until it abuts on base 28 as shown in Fig. 2. A lock may be provided to prevent accidental release, such as pins 58 engaging in recesses 60.
Patent GB-320530-A (GB)
Title: Improvements relating to automatic vending machines
IPC: G07F9/02
Filed: 1928-10-19
Abstract: 320,530. Rollings, E. W., Shore, E., and Javitz, 1. D. Oct. ]9, 1928., Casings; delivery of articles stored in piles.-The casing or body of a coin-freed vending machine is substantially an exact facsimile of the article to be delivered or of the box, tin or other container holding the articles. The body or casing A, Fig. 1, of a machine for delivering rolls or miniature loaves of bread is made in the, shape of a loaf of bread. It contains the coin-freed mechanism and is provided with an insertion slot B, a delivery slot C and an operating knob G. A machine, Fig. 3, for delivering boxes of matches is shaped and coloured to represent a partly open box of matches. Any suitable coin-freed mechanism may be used. The mechanism illustavated in Fig. 3 comprises a hinged magazine E for the articles which is rocked above a delivery shoot F, a fixed horizontal finger H separating off the bottom article.
Patent GB-854903-A (GB)
Title: Radar identification systems
Inventor: WILSON TECK ALBERT
IPC: G01S13/78
Filed: 1957-01-28
Abstract: 854,903. Pulse radar. HUGHES AIRCRAFT CO. Jan. 28, 1957, No. 30357/56. Drawings to Specification. Class 40(7). In an "I.F.F." system the friendly aircraft makes its identity known to the interrogating aircraft by transmitting a signal, in response to an interrogating signal of a certain frequency, which signal is applied to the radar receiver of the interrogating aircraft coincident in time with the receipt of an echo signal from the friendly aircraft, this echo signal resulting from a signal sent out from the radar transmitter at a point later in time than the interrogating signal and having a frequency different from the latter. To ensure coincidence of the signals at the radar receiver a time delay is introduced in the transmission circuit of the friendly aircraft and another time delay is introduced in the circuit applying the echo signal to the radar receiver, the sum of these two delays being equal to the delay between the transmission of the interrogating signal and the radar signal. The coincidence causes either the elimination of the echo signal from the radar screen or a change in its colour. The friendly aircraft transmits at a frequency different from that of the interrogating signals; however, the various frequencies are sufficiently close to permit employment of a single antenna. A switch permits operation of the radar transmitter in the normal manner when transmission of interrogating signals is, not required.
Patent GB-444649-A (GB)
Title: System for the synchronous production of motion pictures and sounds
IPC: G03B31/00
Filed: 1934-10-24
Abstract: 444,649. Combined optical sound - reproducing and kinematograph apparatus. SMITH, S. J., 39, Randolph Road, Broomhill, Glasgow. Oct. 24, 1934, No. 30464. [Class 40 (ii)] [See also Group XX] A combined motion picture-projecting and sound - reproducing system comprises a translucent record disc 3 on which pictures and sound waves are photographically recorded in equi-pitched separate spiral tracks formed respectively on inner and outer concentric sections thereof, the record being deposited on a translucent turntable 1 surmounted by a unit assembly incorporating projector and exciter lamps 5, 4 and aperture plates 15, 14 which surmount respectively a lens system 17, which projects the pictures via a mirror 18 on to a screen 19, and a photo-electric cell 16 for the reproduction of the sounds. The turntable and unit assembly are arranged for relative transverse movement and, as shown, the turntable shaft 2 is journalled in a carriage 20 slidable horizontally on rails 21 supported by pedestals 22. Secured on the shaft 2 is a disc 23 provided on its upper face with a series of sockets or teeth arranged in a spiral similar to the spiral of the picture track and adapted to be engaged by a driving sprocket pinion 24 mounted on the shaft 25 of a constant speed electric motor 26. The image of each picture on the screen 19 may be held stationary for a brief space of time by mounting the mirror 18 so that its angle relatively to the light beam can be altered by a cam driven from the motor 26. The lamps 4, 5, which are mounted on opposite sides of a light-proof partition 6 below reflectors 8, 9 in a casing 17, are cooled by a current of air from a fan mounted in a casing 29 on the motor shaft 25, the fan and lamp casings being connected by an air delivery duct.
Patent GB-1154172-A (GB)
Title: Photographic Camera
IPC: G03B15/04
Filed: 1966-07-07
Abstract: 1,154,172. Photographic cameras. EASTMAN KODAK CO. July 7, 1966 [July 12, 1965], No.30544/66. Heading G2A. A photographic camera having a socket for receiving flash-cubes and indexing means associated therewith for rotating the socket, is further provided with manually operable means movable from a first position in which indexing of the socket is prevented to a second position in which indexing of the socket is effected by the indexing means. In the embodiment shown, the socket and inserted flash-cube 5 are fixedly attached to a shaft 30 and movable therewith, the shaft 30 also carrying a segment 31 of a clutch mechanism. The other clutch segment 32 is slidable on a shaft 33, but rotates therewith, and bears against a manually operable lever 34 which, in its first position, maintains the segment 32 out of engagement with the segment 31. Rotation of the shaft 33 in response to film winding mechanism is therefore not transmitted to the shaft 30, so the socket is not indexed. However, a switch 39, controlled by the lever 34, is open, so a circuit to a flash-bulb of the inserted flash-cube is not completed. When it is desired to make a flash exposure, the lever 34 is rotated anti-clockwise (as seen) to a second position thereby closing the switch 39 and causing the segments 31, 32 to engage. Depression of the shutter release then results in a flash exposure, the flash-cube being indexed as the film is advanced, the relationship between the film advancing mechanism and the indexing mechanism being as described in Specification 1,154,171. In the embodiments of Figs.2, 3 (not shown) a sprocket wheel (9, 9<SP>1</SP>) is advanced through 90 degrees by a slip clutch mechanism as described in Specification 1,154,171. The manually operable means comprises a lever (11, 11<SP>1</SP>) which in its first position engages one of a series of projections (10) on the sprocket wheel and, on being pivoted to its second position, releases the projection and closes a switch (13, 23) in the flash-bulb circuit. In another embodiment Fig. 5 (not shown) a second shutter release button (42) is provided for use when making a flash exposure. Depression of this button not only actuates the shutter, but also closes a normally open switch (44) in the flashbulb circuit and pivots a lever (46) out of engagement with a slip clutch (48) to allow of indexing. In a further embodiment Fig. 6 (not shown), a second shutter release button (51) is again provided to actuate the shutter and close the flashbulb circuit which also contains an electromagnet. On depression of the button (51) current passes through the winding of the electromagnet and attracts a hooked lever (57) out of engagement with a sprocket wheel (58) which rotates under spring action to index the flash-cube during exposure.
Patent GB-1383943-A (GB)
Title: Electrolytic methods of making intimately admixed metal oxides
IPC: C25B1/00
Filed: 1972-06-29
Abstract: 1383943 Electrolytic preparation of mixed metal oxides. OXYDENCHEMIE, AG FUR 27 June 1973 [29 June 1972] 30547/72 Heading C7B  Mixed metal oxides are produced by preparing ore oxide of the desired mixture by electrolysis using the relevant metal as a dissolving anode, while including in the electrolytic bath compound(s) of the other metal(s) to be incorporated. These compound(s) have a solubility <8% w/v in the bath and the pH is maintained between 4 and 10 during electrolysis. The anode may be of Fe, Cu, Ni, Zn, Pb, Co or Al with a cathode of Fe, Ni, Hg treated Fe, Pt or oxidized Ti. The electrolyte may be an aqueous halide, nitrate, sulphate, acetate or oxalate of e.g. K, Na or NH4. The metal compound may be an oxide, fluoride, carbonate, hydroxide or sulphide. A chelating agent may be added to increase its solubility. During electrolysis the electrolyte may be aerated or subjected to the action of further pairs of electrodes, e.g. Pt plated Ti anode/Fe cathode or Pt/Ir alloy anode and cathode, to produce an oxidant e.g. KOCl, which oxidises the electrolytic product. A uni-directional or alternating magnetic field may also be applied, especially when magnetic oxides are being prepared. Mixed oxides of the following metal combinations are specified; Fe/Ba, Fe/Mn/Zn, Fe/Zn, Fe/Mn, Fe/Mg, Fe/Zn/Mn/Li, Fe/Cu, Ni/Ba, Fe/Sr, Fe/Pb and Zn/Al. The prepared oxide may be sintered at 800-1000‹C, and may be further electrolytically heated in a diaphragm cell to oxidize or reduce it.
Patent GB-1042216-A (GB)
Title: Electron discharge device and a cavity resonator therefor
IPC: H01J23/20
Filed: 1964-08-04
Abstract: 1,042,216. Transit-time tubes; cavity resonators. WESTINGHOUSE ELECTRIC CORPORATION. Aug. 4, 1964 [July 30, 1963], No. 30604/64. Heading H1D. A tunable annular cavity resonator, e.g. for a coaxial magnetron, includes an annular tuning member disposed and axially movable within the cavity, adjusting means extending through one of the cavity end plates for axially moving the tuning member, and bellows which extend between, and are vacuum sealed to, the timing member and the end-plate, such that the adjusting means is external to the vacuum region. A coaxial magnetron with polepieces 48 and 50, a cathode 16 having a barium oxide coating 20 on a molybdenum sleeve 18, and an anode 22 with vanes 24, includes an outer cavity resonator 30 formed by the anode 22, the cup-shaped member 10, and a cover 34. Resonator 30 is tunable by an annular U-shaped member 44 which is axially movable by rods 64 mounted in a cross-piece 62 secured to the lower end of, and vertically displaceable by, a rod 60, which is slidable with respect to an extension 68 of the upper polepiece 50. Ring-shaped bellows 74 and 76 extend between, and are vacuum sealed to, the tuning member 44 and the end plate 34, and are of a lossy materiale.g. stainless steelto inhibit back cavity resonance. In a modification (Fig. 3, not shown) coaxial bellows 74, 76 are replaced by two smaller bellows, each extending around the periphery of one of the rods 64.
Patent GB-1354967-A (GB)
Title: Combine harvesters
IPC: A01F7/06
Filed: 1971-06-30
Abstract: 1354967 Combine harvesters SPERRY RAND CORP 30 June 1971 [30 June 1970 10 June 1971[ 30634/71 Heading AIF  In an axial flow combine harvester the separated chaff and straw falls through opening 58 at the end of two parallel threshing and separating units 28 and slides down deflector plate 60 onto grate 64 from where it is thrown rearwardly upwards by beater 62 and deflected by curved baffle 65 along path A to fall to the ground through discharge opening 38 without interfering with the air flow carrying chaff and debris from a conventional grain cleaning unit 32 along path B to the discharge opening 38. Cut crop from elevator 40 is fed by augers 68 to threshing rotors 70 and separating rotors 72 co-operating with concaves 74 and grates 76 respectively through which separated grain falls onto grain pan 50 of the grain cleaning unit 32. Spiral fins 88 on the inside of casing 67 cause the crop to move rearwards as it is rotated. Baffle 130 attached to grate 64 prevents draughts from rotors 72 interfering with the air flow from the blower 56. Grate 64 comprises parallel rods 108 passing through and welded at their ends to a boxsection beam 110 secured by bolts 106 to deflector plate 60 which is hinged at 102 to the end of grates 76. Bolts passing through end brackets 112 of the beam and through slots in the sidewalls 95 of the combine may be slackened and moved along the slots to adjust the grate 64. The rods 108 may be connected by cross-members. Beater 62 comprises a boxsection beam 118 fixed to a shaft 124 journalled in bearings 126 on the outside of sidewalls 95 The blades are formed from two folded sheet metal members 120 welded along beam 118 and to circular end plates 122 by gussets 129. An arcuate shield 131 covers the gap between the end plates 122 and the sidewalls 95. The beater 64 may be replaced by spikes or by a larger box-section beam 166, Fig. 9, not shown, having a blade (164) mounted at each corner.
Patent GB-1090228-A (GB)
Title: Preparation of 2-aminoethyl esters of methacrylic acid
Inventor: MCFADDEN RUSSELL THOMSON
IPC: C08L63/00
Filed: 1965-07-20
Abstract: Acid addition salts of aminoethyl esters of methacrylic acid of formula CH2=C(CH3)COOCH2CH2NHR in which R is hydrogen, a C1-C6 alkyl or hydroxyalkyl group, a C7-C12 aralkyl group or a C2-C6 cyanoalkyl group may be used as curing agents for epoxy resins (especially epoxy resins based upon Bisphenol A).ALSO:An aminoethyl ester of methacrylic acid in the form of an acid addition salt is prepared by reacting methacrylic acid and an aziridine compound of formula <FORM:1090228/C2/1> in which R is hydrogen, an alkyl or hydroxyalkyl group containing 1-6 carbon atoms, an aralkyl group containing 7-12 carbon atoms or a cyanoalkyl group containing 2-6 carbon atoms, in the presence of an inert liquid aliphatic hydrocarbon solvent having up to 12 carbon atoms, adding an acid under substantially anhydrous conditions to the reaction mixture and thereafter separating the ester in the form of an acid addition salt.  The reaction takes place as follows <FORM:1090228/C2/2> Examples are given of the preparation of acid addition salts of aminoethyl esters of methacrylic acid of the above formula in which R is H, phenethyl and cyanoethyl.
Patent GB-1194116-A (GB)
Title: Bottle Closure
Inventor: NIEDERER JAKOB
IPC: B65D41/48
Filed: 1968-06-27
Abstract: 1,194,116. Bottle closure. J. NIEDERER. 27 June, 1968 [6 July, 1967], No. 30791/68. Headings B8D and B8T. A bottle closure comprises two members 1, 2 integrally joined by a shoulder 20 provided with a weakening groove 7, the top member 1 being removable from the lower member 2 by tearing along the weakening groove. The lower member 2 is provided with annular beads 4, 5 which are engageable over associated beads on a bottle neck to be closed. When the upper member 1 has been torn off, a pouring lip (17) is formed, Fig. 3 (not shown), and a sealing lip (18) provided against the end of the bottle neck. The upper member may be provided with ridges 8 and may also be so dimensioned that the smallest diameter of the upper member 1 is at least as large as the diameter of the bottle neck opening. The bottle may not be reclosed therefore after the upper member 1 has been torn off. The closure may be formed integrally by injection moulding of plastics material (e.g. polyethylene). Reference has been directed by the Comptroller to Specification 1,130,234.
Patent GB-1080097-A (GB)
Title: Board whereon forms, mouldings, paintings and drawings can be effaced
IPC: B43L1/12
Filed: 1965-07-21
Abstract: 1,080,097. Repeatedly usable boards. M. PADOWICZ. July 21, 1965 [Dec. 24, 1964], No. 30948/65. Heading B6P. A board comprises a base-plate 1, a coloured layer of paper 2, and a transparent synthetic plastic bag having two faces 3<SP>1</SP> and 3<SP>11</SP>. Within the bag is a pasty mixture 4 of mineral oils and saponified metals or various waxes. By pressing a blunt stylus, Fig. 3 (not shown) on the surface of face 3<SP>11</SP>, the pasty mixture is moved aside and the coloured layer of paper 2 appears. Any markings so formed may be removed by smoothing the pasty mixture evenly within the bag. In a modification (Fig. 2) the coloured layer of paper 2 is exchangeable. An additional transparent intermediate layer (9) may be inserted between the bag and the layer 2 in order to tension the bag. The layer (9) is attached to the bag and is greased on the side facing the bag in order to avoid friction.
Patent GB-823726-A (GB)
Title: Improvements in or relating to overedge sewing machines having horizontally rotating feed cups
IPC: D05B27/18
Filed: 1956-10-11
Abstract: 823,726. Sewing machines. STROBEL, O. Oct. 11, 1956, No. 30998/56. Class 112 In a sewing machine having feed cups arranged horizontally on vertical shafts the rear cup, which is arranged immediately below the horizontally reciprocating needle bar, and the forward cup, which turns in ball bearings, can both be removed from their shafts merely by lossening simple securing means and without dismantling machine parts. The rear cup 2 has a hub 10 which only half surrounds the shaft 9 and is secured thereon by a screw 11. The forward cup 6 is firmly fitted to the outer race of double ball bewaring 22 the inner race of which is mounted on the neck 23 of a shaft stub 24 clamped to the retaining arm, 15 and is removably held thereon by the needle guard 18 and a screw 26. Alternatively, the forward feed cup may be removably mounted on a shaft stub which is mounton the retaining arm by ball bearings, the needle guard being torrid by a stirrup adjustably attached to the arm.
Patent GB-762281-A (GB)
Title: Improvements in and relating to piston compressors
IPC: F04B39/12
Filed: 1953-11-10
Abstract: 762,281. Reciprocating compressors. DOLZ. H. Nov. 10, 1953 [Nov. 24, 1952], No. 31071/53. Class 6(1) In a reciprocating electric motor driven compressor, the end of the cylinder 10 is closed by a spring-loaded valve member 11 so that the piston 8 may overshoot the end of the cylinder. The piston carries an inlet valve 20 and the compression chamber 13 communicates through a restriction 17 with a further chamber 16. Charging may be assisted by means of a plate 22 or in a modification a piston, operating in a cylinder 23 within the motor; this piston is resiliently secured to the rod 7 and acts as a guide. The valve 20 may be replaced by an intake in the cylinder. The piston head and valves 11, 20 may be covered with resilient material.
Patent GB-236457-A (GB)
Title: Improvements in and relating to calendars
IPC: B42D5/06
Filed: 1924-12-29
Abstract: 236,457. Vivian, G. S., and Wadding- ton, Ltd., J. Dec. 29, 1924. Calendars.-In monthly tear-off calendars each sheet is provided with two covering sheets with the days printed in a distinctive manner the two covering sheets being perforated so that portions may be torn off for each day, thus the bottom sheet shows the days that have passed, the middle sheet the present day, and the upper sheet the future days. The lower sheet 1 has the days 2 printed on paper of a distinctive colour and has loosely attached to it the middle sheet 3 having the days printed each with a dark border and the upper sheet 4 having the days printed on white paper, the squares on sheets 3 and 4 being perforated. In use the upper sheet is torn away so as to remove all the squares up to and including the present date, and the middle sheet torn away so as to remove all the squares up to but not including the present date.
Patent GB-1473294-A (GB)
Title: Electrical junction box assembly
IPC: H02G3/08
Filed: 1973-06-29
Abstract: 1473294 Junction boxes FOSROC AG 27 June 1974 [29 June 1973] 31191/73 Heading H2E An electrical junction box comprises a box 1 with one or more limbs 5 for receiving mineral insulated copper or aluminium covered cable, the cable being clamped by a compression ring 3 screwed on the limb. A flexible polyvinyl chloride sheath 2 with a flared rim 11 is located between the ring and the cable to form a fluidtight joint. The box 1 and compression ring 3 are moulded of rigid synthetic resin. The limb 5 may include an enlarged portion 7 to accept an electrical component 8 connected to the cable.
Patent GB-1024173-A (GB)
Title: Improvements in and relating to vacuum electric devices
Inventor: BLACK IAN ALEXANDER
IPC: H01H33/662
Filed: 1961-08-30
Abstract: 1,024,173. Vacuum switches. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Aug. 29, 1962 [Aug. 30, 1961], No. 31210/61. Heading H2B. [Also in Division H1] The envelope of a vacuum switch, spark-gap or the like includes an insulating member 6 so shaped that parts of its internal surface are shielded from any path along which material evaporated from the contacts could be projected. Guard rings 8, 9 attached to the contacts 1, 2 serve to shield other parts of the member 6. The member 6 may be of glass or porcelain. For very high voltages the external surface of member 6 (Fig. 3, not shown) is shaped to increase its length and prevent breakdown.