baber/WOPTO huggingface dataset:
Patent GB-361075-A (GB)
Title: Improvements in apparatus for measuring short time intervals
IPC: G01S1/72
Filed: 1930-10-21
Abstract: 361,075. Measuring short time intervals. SUBMARINE SIGNAL CO., 160, State Street, Boston, and WILLIAMS, R. L., 109, Waban Hill Road, Chestnut Hill, both in Massachusetts, U.S.A. Oct. 21, 1930, No. 31596. Convention date, Dec. 13, 1929. [Class 139.] Apparatus for measuring short time intervals comprises light-reflecting means set in motion at the beginning of the interval and a light-producing indicator which is rendered luminous at the end of the interval, the reflection of the indicator by the light-reflecting means indicating the momentary position of the latter with respect to a scale. The apparatus is described as applied to an echosounding device. An impulse is sent out by a manually operated hammer 1 striking against the ship's skin 2. The vibration is immediately transmitted to a relay 3 and causes the opening of contacts 6, 7 and the release of the spring armature 11 of an electromagnet 9. The armature hits a projection 13 on a disc 12 and causes it to rotate and to wind up a spring 15. A mirror 17 is secured to the disc. The echo is received by a hydrophone 18 supplied with current by a battery 21 through a potentiometer 20. The impulse is amplified and, through a transformer 26, causes a neon tube 27 to flash. The light passes through a lens 32 and is reflected from the mirror 17 on to a translucent scale 28 which may be graduated directly in depths. In a modification, Figs. 3 and 4, a pointer 33 is secured to the disc 12 and carries at its end a mirror 34. The pointer moves against a scale 35 illuminated from behind by a lamp 39. The neon tube 36 is situated above the pointer and when the tube is caused to flash on the arrival of the echo, light is reflected from the pointer mirror 34 and enables the position of the pointer to be noted. Specification 242,940, [Class 118 (ii), Signals], is referred to.
Patent GB-1131534-A (GB)
Title: Novel piperidino-butyrophenones and a process for the manufacture thereof
IPC: C07D211/44
Filed: 1967-07-10
Abstract: 1,131,534. Piperidino-butyrophenones. F. HOFFMANN-LA ROCHE & CO., A.G. 10 July, 1967 [11 July, 1966], No. 31596/67. Heading C2C. Novel compounds of the formula and their acid addition and quaternary salts where R 1  is C 1-7  alkyl, C 3-6  cycloalkyl, (C 3-6  cycloalkyl) - (C 1-7  alkyl), C 1-7  hydroxyalkyl or (C 1-7  alkoxy)C 1-7  alkyl, R 2  is acyl and X is halogen are prepared by reacting a 4-hydroxy piperidine of the formula with a compound of the formula where Y is a leaving group and then optionally subjecting the (C 1-7  alkoxy) C 1-7  alkyl group, if present, to ether cleavage to give a C 1-7  hydroxyalkyl group and optionally acylating the hydroxy group. The 4-hydroxypiperidines are made (a) by hydrogenating 4-hydroxy-4-phenylpiperidine in the presence of platinum oxide to give 4- cyclohexyl - 4 - hydroxypiperidine, (b) by reacting an alkyl lithium or cyclopropyl lithium with 1-benzyl-4-piperidone to give a 4-alkyl-1- benzyl - 4 - hydrorypiperidine or 1 - benzyl - 4 - cyclopropyl-4-hydroxypiperidine and then hydrogenating these compounds in the presence of palladium on charcoal to give 4-alkyl-4-hydroxypiperidine or 4 - cyclopropyl - 4 - hydroxypiperidine and (c) 1-benzy]-4-[3-(1,1-dimethylpropoxy)-propyl]-4-hydroxypiperidine is hydrogenated in the presence of palladium on charcoal to give 4-[3-(1,1-dimethylpropory)-propyl]- 4-hydroxypiperidine. Pharmaceutical compositions effective as analgesics, sedatives, antipyretics and anti-inflammatory agents comprise one of the novel compounds of the above formula or an acid addition or quaternary salt as the active ingredient and a carrier and are administered as tablets, dragÚes, capsules, solutions, suspensions or emulsions.
Patent GB-1340828-A (GB)
Title: Detection of spindle eccentricities in a multiple spindle machine tool
IPC: B23Q15/12
Filed: 1972-07-06
Abstract: 1340828 Machine tool control CINCINNATI MILACRON Inc 6 July 1972 [6 July 1971] 31808/72 Heading B3B A machine tool comprises a plurality of simultaneously rotating spindles SP1, SP2, SP3, means for advancing the spindles at the same feed rate towards a workpiece, separate sensing means 18, 20, 22 associated with each spindle for producing signals as a function of the eccentricities of each spindle; comparison means 24 for receiving said signals and producing an output 28 that is representative of the most significant magnitude of said signals resulting from each of said spindles at any instant in time, and a control mechanism responsive to said output 28 to control the feed rate of all the spindles. The sensing means 18, 20, 22 can measure in two mutually perpendicular directions at each spindle and a vector signal is derived from them. Allowance can be made for eccentricities in a free running condition of the spindles before the tools carried by the spindles engage workpieces. In one embodiment (Fig. 4, not shown) the analogue signals are passed through analogue/digital converters to a computer. The computer produces signals which are converted by a digital/analogue converter to control functions of the machine tool and to indicate functions on displays. The load on the motor driving the spindles may be sensed to provide an overall control in the feed rate.
Patent GB-933705-A (GB)
Title: Improvements in and relating to electrical step switches for regulating transformers
IPC: H01H3/40
Filed: 1961-09-05
Abstract: 933,705. Regulating switches. BROWN, BOVERI & CO. Ltd. Sept. 5, 1961 [Sept. 7, 1960], No. 31820/61. Class 38 (5). A step switch, e.g. for regulating transformers, has on each movable contact part the connecting rod of a crank gear arranged such that contact is made when the connecting rods are in the extreme extended position, the length of the connecting'rod being smaller than six times the crank radius r (preferably 3 to 4r), the contact movement being rectricted to an angle of crank rotation α between 150 and 240 degrees, and the cranks being staggered relatively to one another each by about 1/3 of the angle of crank rotation α. 1, 2, 3, 4 are extinguishing chambers of which chamber 2, for example, contains a somewhat flexible fixed contact 2a, and a contact part 2b movable in a piston guide 2c. The connecting rod 20a for actuating movable contact part 2b is operated at a position 1/3α different from rod 10a, and so on, the cranks each being provided with a toothed wheel, e.g. 10b, engaging in a larger toothed drive wheel 15 mounted on a hollow shaft 16. A switching arm 25 is also connected with shaft 16 for movement between fixed contacts 26, 27, after the contacts in chambers 1 . . . 4 have been operated in sequence during crank rotation through angle α. The operating sequence is reversed through chambers 4 ... 1 with crank rotation in the opposite direction, arm 25 then moving back between fixed contacts 27, 26. The fixed contacts of chambers 1 and 4 are connected directly with contacts 26, 27, respectively, while the fixed contacts of chambers 2 and 3 are connected by way of resistances with contacts 26, 27, and thence the selector contacts of a transformer step switch (Fig. 3, not shown).
Patent GB-1127209-A (GB)
Title: Delayed return electronic relay
IPC: H03K17/288
Filed: 1966-07-15
Abstract: 1,127,209. Relay - operating circuits. SCHIELE VERWALTUNGS G.m.b.H. 15 July, 1966 [17 July, 1965], No. 31939/66. Heading H3P. A circuit includes a relay 5, which is locked in the excited condition for a delay time after interruption of the excitation circuit 10, 11. With the excitation circuit connected, relays 5, 7 close contacts 12-14 and 15-17 respectively, relay 5 being held in that position by a mechanical lock controlled by a relay 6. When the circuit 10, 11 is interrupted, contacts 15-16 close and capacitor 4 charges from capacitor 1 until cold cathode tube 18 triggers, thus energizing relay 6, releasing the lock associated therewith, and allowing relay 5 to relax. In the embodiment depicted in Fig. 1 (not shown), tube 18 is replaced by a glow discharge diode, relay 6 being in series and capacitor 4 in parallel therewith, and relay 7 is placed in parallel with relay 5; but the operation is identical. In the embodiment of Fig. 3 (not shown), relay 7 is removed, points 15 and 16 connected, and diode 8 is replaced by a diode (19) in lead 11 between relay 5 and capacitor 1. A diode (20) with its anode connected to the trigger electrode of tube 18 and its cathode connected to the junction of diode (19) and relay 5 prevents capacitor 4 charging until the excitation circuit is interrupted. Relay 5 may be of the type which remains in its excited state after disconnection of the excitation circuit, by virtue of its residual magnetism. The mechanical locking mechanism may then be dispensed with and relay 5 is reset by the excitation of solenoid 6 producing a field to destroy the residual field in relay 5.
Patent GB-1108233-A (GB)
Title: Production of phenols
IPC: C07C37/82
Filed: 1965-07-27
Abstract: A phenol is displaced from a spent anion exchange resin (which has been used to neutralize the ketone-and phenol-containing mixture resulting from acid-catalysed cleavage of a hydroperoxide) by contact with an aliphatic ketone, prior to regeneration with an alkaline solution.  Specified initial materials are a ,a -dimethylbenzyl hydroperoxide, its a -methyl-a -ethyl analogue and its p-methyl, p-ethyl, p-isopropyl and p-t-butyl homologues; and a ,a -dimethylnaphthylmethyl hydroperoxide.
Patent GB-1499094-A (GB)
Title: Asymmetric synthesis of alkyl chrysanthemate
IPC: C07C69/74
Filed: 1976-07-30
Abstract: 2,5-Dimethyl-2,4-hexadiene is reacted with a diazo acetate of the formula N2CHCOOR     (V> in the presence of a catalyst. The catalyst used is a copper complex of a chiral Schiff base of the formula: <IMAGE> In the formulae, R, R<1>, R<2>, X<1>, X<2> and C<*> have the meanings given in Patent Claim 1. The optically active alkyl chrysanthemates thus prepared can be hydrolysed to give the corresponding optical isomers of chrysanthemic acid. These isomers can be used for the preparation of synthetic, insecticidally active pyrethroids.
Patent GB-1390901-A (GB)
Title: Drier for washing with a condensation device arranged in the drying air stream
IPC: D06F34/14
Filed: 1973-07-05
Abstract: 1390901 Drier LICENTIA PATENTVERWALTUNGS-GmbH 5 July 1973 [5 July 1972 17 Nov 1972 17 Feb 1973] 32034/73 Heading F4G A drier for drying washing is provided with a condenser 3 in a stream of drying air, means being provided for passing the coridensate from the condenser 3 to a condensation collecting container 9. The container 9 has a switch device which is actuated by predetermined minimal and/or the maximal liquid volume state to control the operation of the drier. That is if an attempt to activate the drier is made when the liquid state is above the minimal it will not operate. Further when the maximal state is reached the drier is automatically stopped. As shown the drier is of the rotating drum type, air being heated by a electric element 1. Condensate is pumped to the container 9 from the condenser 3. The switch device comprises a contact for determining the minimal level and afloat for determining the maximal level. Alternatively the container may be mounted on a plate which is pivoted at one end, the plate being supported initially by one group but as this is depressed during filling of the container a second spring supplements the one spring (Fig. 2, not shown). The container may have several compartments which fill in sequence such that the load on the plate moves non-uniformly. In a further embodiment the container is mounted on a lever, pivoted at one end and spring supported at its other (Fig. 3, not shown). The end of the lever remote from the pivot moves between a pair of contacts which are provided on a spring loaded lever.
Patent GB-1519024-A (GB)
Title: X-ray film holder
IPC: G03C3/00
Filed: 1975-07-31
Abstract: 1519024 X-ray film holders PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 31 July 1975 [3 Aug 1974] 32056/75 Heading G2X An x-ray film holder has a curved base-plate and a flexible cover-plate 2 pivotably inter-connected by a rod 16; the cover plate 2 also has a rod 8 along one edge connected by a lever 9 to a pivot axis 10. After a film has been inserted between the plates the lever 9 is moved downwards to a point of maximum resistance when rods 8 and 16, and the axis 10 lie in the same plane, beyond which the holder closes easily, with the cover-plate 2 deforming to the curved shape of the base. Lever 9 may be connected by a guide rod 11 and a slot 14 and trunion 15 to the rod 16. This causes the rod 16 to be raised when lever 9 is raised, thus moving the cover-plate away from the base-plate and permitting easy removal of the film. It also causes the rear edges of the two plates to be brought into contact before the front edges, as the lever 9 is lowered, thus preventing air being trapped. The base-plate and cover-plate may have intensifying screens and be made of aluminium and brass respectively. A lever 9 may be provided at either end of rod 8.
Patent GB-268013-A (GB)
Title: Improvements in metallic packings for stuffing boxes and the like
IPC: F16J15/28
Filed: 1925-12-19
Abstract: 268,013. United Kingdom Self-Adjusting Anti-Friction Metallic Packing Syndicate, Ltd., and Brooks, F. G. Dec. 19, 1925. Packing, metallic; packing, removable casings, containers, or carriers for; followers, bushes, and the like; packing, extracting. - Packing comprises two segmental cast-iron rings K separated by a, ring M, which may be of gun-metal, and is formed with radial slots receiving pins k<3> on the segments. The joints of the segments are preferably at an angle between a radius and a tangent to the bore. The packing is contained in a, casing comprising telescopic parts E, G, the latter being of gun-metal. Both parts are stepped to receive bushes F, H of gun-metal or the like. The casing is pressed on to a ring P, making a spherical joint with the gland Q, by means of a, spring C, one end of which is housed in a recess in the neck bush B, while the other end embraces a sleeve d' on a ring D bearing on the casing ring E. The bore a<1> in which the neck bush fits is of sufficient diameter to permit the passage of an enlarged part on the rod R, and the rings D, H and bushes F, H are formed in halves. The bush B and ring D are formed with tapped holes T to receive a withdrawing tool. Specification 210,494 is referred to.
Patent GB-328910-A (GB)
Title: Improvements in and relating to devices for separating petrol, oil, tar and the like from the waste water of garages
IPC: C11B13/00
Filed: 1928-11-05
Abstract: 328,910. Farrer, C. R. Nov. 5, 1928. Plant.-Adevice for separating petrol, oil, tar, and the like from the waste water of garages comprises a cast iron receptacle divided into three compartments by vertical partitions B, C, D. The waste water enters the receptacle through apertures G in the cover and is filtered through soft coke in a tray with a perforated bottom supported on projections H in the first compartment. The liquid after overflowing into a second compartment is further filtered through coke in a similar tray supported on a projection L and is discharged from the third compartment to the sewer through an outlet A. The coke attracts and absorbs petrol, oil &c. and heavier matter is collected in a tray with an imperforate base placed below the filter tray in the first compartment. A slot N in the top of the rib B allows of the escape of gases and prevents air lock.
Patent GB-500663-A (GB)
Title: Improvements in the manufacture of yeast and other micro-organisms
IPC: C12N1/38
Filed: 1937-11-23
Abstract: 500,663. Yeast. INTERNATIONAL YEAST CO., Ltd., and BENNETT, W. G. Nov. 23, 1937, No. 32250. Addition to 396,206. (.Class 14 (ii)] Yeast or similar micro organisms with high ergosterol content, grown according to the parent Specification, are subjected, while still suspended in the original liquor of the main treatment or after removal therefrom and redilution with water, to supplementary aeration in the presence of an oxygen carrier such as methylene blue or indigo carmine. Preferably an organic nutrient devoid of nitrogen and phosphorus, such as ethyl alcohol or lactic acid, is added, e.g. in proportions of 40 to 60 per cent of the weight of the yeast.
Patent GB-650653-A (GB)
Title: A machine for topping and tailing onions, shallots and other vegetables
IPC: A23N15/08
Filed: 1948-12-14
Abstract: 650,653. Endless conveyers. RICHARDS, P. G., and ROPER, D. R. Dec. 14, 1948, No. 32311. [Class 78 (i)] [Also in Groups I, VI and XXIV] In a machine for topping and tailing onions, shallots, turnips, &c. each held between spring jaws 9 of an intermittently advanced endless belt conveyer 2, each onion presses apart spring-pressed feelers 19 to which the knives 12, Fig. 6, are attached to adjust the spacing of the knives to the size of the onion. The initial spacing of the knives is adjustable by nuts 24. The knives are also provided with slots 23 to allow of their arcuate adjustment. A reciprocator 16 actuates the conveyer step - by - step by first pulling along a chain 29, thus turning the sprocket of a shaft 8 on which is mounted one of the end polygonal wheels 30 thereby moving the gripper conveyer 2 one step. On the return part of the reciprocation the chain 29 is slackened to allow a spring 31 to pull it back by means of a free wheel drive on the shaft 8. This return part of the reciprocation also forces the knives against the now stationary onion to cut off its ends. The shafts 6 and 8 are provided with friction couplings. The spring jaws 9 of the grippers are secured to separate plates 3 on the conveyer so that as they traverse around the polygonal wheels 5 and 7 at the ends they open out in turn to receive an onion placed therein by hand, and at the other end they open out again to allow the cut onion to fall out.
Patent GB-332154-A (GB)
Title: Improvements in speed measuring apparatus
IPC: G01P3/04
Filed: 1929-10-24
Abstract: 332,154. Hasler Akt.-Ges. vorm. Telegraphen-Werhstatte von G. Hasler. Nov. 21, 1928, [Convention date]. Periodic-counter and like speed indicators.-In a clockcontrolled speed measuring apparatus in which a clockwork has to be wound before each measurement, and upon release frees a locking pawl controlling the measuring and indicator mechanism by means of a cam disc, two springs are used to start the clockwork mechanism one being rendered inoperative upon the release of the measuring and indicating mechanism while the other continues to drive the clockwork until the measurement is obtained. Depression of a slidable pin 3 rotatesa segment disc 16 about its pivot 15 causing a pin 18 integral with the disc 16 and which projects through a slot 19 in the upper clockwork plate 20, to tension first a yoke-shaped spring 21 which constantly acts on the pin 18 and later an auxiliary spring 26 as shown in Fig. 2. Upon. release of the pin 3 both springs 21, 26 urge the segment 16 in a clockwise direction, which drives, through a gear wheel 14 and a one-way drive comprising a pawl 12 engaging a cam disc 13, a spindle 10 of an escapement wheel 11. When the clockwork has attained full speed the projection 9<a> of a cam 9 mounted on the escapement spindle 10 releases a pivoted pawl 8 from a toothed wheel 7. At the same time the upper arm of the spring 26 comes against a stop 27 after which the escapement is driven by the spring 21 only. The release, by the pawl 8, of the wheel 7, which carries the indicating pointer, allows the motion to be measured to be transmitted from a spindle 2, by means of gearing 4, to a wheel 6 which now rotates the wheel 7 and hence the pointer by friction. When the clockwork stops, that is when the pin 18 comes to rest against the top of the slot 19, the pointer wheel 7 is again locked by the pawl 8. Fig. 3 shows the arrangement of the pin 18 and the two springs 21, 26 relative to the slot 19.
Patent GB-252637-A (GB)
Title: Improvements in coal mining machines
IPC: E21C25/24
Filed: 1925-12-22
Abstract: 252,637. Tugwood, R. J., (Jeffrey Manufacturing Co.). Dec. 22, 1925. Coal-cutting machines.-A coalcutting machine comprises a supporting frame carrying a transversely swingable kerf cutter and a second kerf cutter swing- able in a plane at an angle to the transverse plane, and preferably in a vertical plane, the cutters having separate driving and feeding means and being operable simultaneously. As shown, a carriage 1 carries at the centre of its front end a cutter-chain jib 32 pivoted on a horizontal shaft 23, and has guides 5 in which brackets 7 are movable by screws 6, the brackets 7 supporting a ring 8 on which is rotatably mounted a turntable 9 rigidly carrying a horizontal cutter-chain jib 20. A motor 4 on the truck 1 is adapted at will to drive the truck at high or low speed, to drive the screws 6 to raise or lower the horizontal cutter-jib 20, and, through a shaft 26, bevel gears, a clutch and the shaft 23, to drive the cutter-chain on the jib 32. The shaft 23 also carries an eccentric 47<1> which oscillates a member 45 pivoted on a nut 40, the member 45 carrying opposed pawls adapted to engage opposed ratchet wheels on the nut to rotate the latter on a screw 38 pivoted at 39, the cutter-jib 32 being thereby raised or lowered; an adjustable shield plate holds either or both pawls out of action as desired. Beneath the turntable 9 is a motor 10 by which the cutterchain on the jib 20 is driven, and which may also drive a drum 11 through gearing and a friction clutch controlled by a hand-wheel 15; the drum winds in a rope 12 passing round guides 13 to a fixed point, and thereby rotates the turntable and cutter-jib to make an arc wall cut. The turntable 9 may be locked by a bolt engaging one of a series of notches.
Patent GB-1026818-A (GB)
Title: Apparatus for stopping mechanically driven presses
IPC: F16P3/00
Filed: 1964-08-10
Abstract: 1,026,818. External shoe-drum brakes. A. WEBER. Aug. 10, 1964 [Aug. 28, 1963], No. 32510/64. Heading F2E. [Also in Division B5] When a locking lever 45 is released, a bellcrank lever 42 is turned about its pivot 40 by means of a weight 43 and a roller 38 carried by the lever 42 forces a brake block 31 into contact with the flywheel 3 of a press (see Division B5). Release of locking lever 45 is effected by moving a member 11 into position to be engaged by a cam 8 or 9 on an arrester ring 6 of the press. Return of lever 42 to the position shown allows a spring 34 to release the brake. A screw 36 enables the brake to be freed if the spring 34 is insufficient to do this.
Patent GB-854711-A (GB)
Title: Improvements in or relating to a respooling device for photographic cameras
IPC: G03B19/04
Filed: 1957-10-18
Abstract: 854,711. Photographic roll-film cameras. GRUTER, R., MEIXNER, W., and NOLTE, A., [trading as BALDA-KAMERAWERK R. GRUTER KOMM.-GES.]. Oct. 18, 1957 [Nov. 5, 1956], No. 32530/57. Class 98(1) In a roll-film camera one end of a centrally pivoted lever controls the drive to a film drive roller and the other end controls a sleeve having an open-ended slot formed to provide engagement with the driving rib of the re-wind spool and to key the sleeve to the splines of a re-wind shaft. Thus, as shown, the legs of sleeve 5, which can be moved into engagement with rib 9a of spool 9, pass through apertures in ring 2 which is formed integrally with rewind shaft 1 and serves to mount the shaft for rotation. The rotation of plate 16 tilts lever 13 about projection 12 by the cam action of arm 16a and thus simultaneously couples or uncouples drive 15 with film drive roller 14 and uncouples or couples rib 9a with the legs of sleeve 5. The motion of plate 16 also locks or releases film re-wind handle 10. Rotation of pin 23 or, alternatively, a jumping motion of the pin (if the pin is keyed to shaft 1) shows that the film is being wound on correctly.