baber/WOPTO huggingface dataset:
Patent GB-893707-A (GB)
Title: Novel tryptamine derivatives and a process for the manufacture thereof
Inventor: HEATH-BROWN BASIL
IPC: C07D209/16
Filed: 1960-03-01
Abstract: The invention comprises 3-(21-methyl- and 21-ethylamino propyl)-indoles, their pharmaceutically acceptable addition salts with inorganic or organic acids, and the preparation thereof by formylating or acylating 3-(21-aminopropyl)-indole and reducing the carbonyl group of the resulting formyl or acetyl compound to the methylene group and, if desired, converting the resulting base into an acid addition salt.  Acylation is preferably carried out with acetic anhydride or a mixture of acetic anhydride and formic acid and the acyl group reduced by lithium aluminium hydride.  Pharmaceutical compositions contain the above compounds together with a carrier. The compositions are useful as psychos timulants and may be prepared in a conventional form suitable for enteral or parenteral administration, e.g. tablets, dragees, suppositories, capsules, solutions, emulsions or suspensions.
Patent GB-129237-A (GB)
Title: Improvements in or relating to Fluid Pressure Operated Diaphragm Horns.
Inventor: RYDBERG HELGE SVEN ALBERT
IPC: G10K9/04
Filed: 1919-03-22
Abstract: 129,237. Rydberg, H. S. A. March 22, 1919. Diaphragm horns.-In a fluid-pressure-operated diaphragm horn, the inlet pipe or chamber 6 passes obliquely from the wall 3 of the outlet chamber to the diaphragm 1 whereby the vibrations from the uncovered parts of the diaphragm pass out directly to the horn or the like 4. In a modification, the end of the inlet pipe has the form of an annular chamber with its two edges resting against the diaphragm. Two or more obliquely arranged inlet pipes may extend from an annular chamber, and the inner ends of the pipes may be quadrantal or of other shape.
Patent GB-363244-A (GB)
Title: Improvements in flat hosiery knitting frames
IPC: D04B11/00
Filed: 1931-03-09
Abstract: 363,244. Straight-bar knitting- machines. HEINITZ, W., 24, Neefestrasse, Chemnitz, Germany. March 9, 1931, No. 7256. [Class 74 (ii).] The needles are pressed individually by wires 1 clamped in a bar 2 and moved up and down by an arm 5. The wires rest against the sinker bed or against a separate strip 9. Fig. 2 (not shown) illustrates the parts in pressing position. Subsequently the press wires move down at the same rate as the needles until their heads are level with the tops of the instruments 17.
Patent GB-521784-A (GB)
Title: Improved hydrodynamic tachometer
IPC: G01P3/28
Filed: 1939-03-06
Abstract: 521.784. Fluid-pressure servomotor-control systems. SCHNEIDER & CIE, and FIEX, J. March 6. 1939, No 7314. Convention date. Aug. 26, 1938. [Class 135] A hydrodynamic tachometer comprises a piston 10 connected to the member of which the speed is to be measured, and moving in a cylinder 9 having a restricted outlet 31, the pressure variations in the cylinder due to the movement of the piston therein being transmitted to a second piston 20 which operates a valve, e.g., the valve 45, controlling a fluidpressure servomotor 3. As the rise or fall in pressure in the chamber 21 between the piston is substantially proportional to the square of the speed of the piston 10, the servomotor piston rod 39 carries a cam 40 with two similar parabola elements, the cam reacting on the control valve 24 of the servomotor through a plunger 42 and a spring 43 so as to return to a linear function quadratic impulses acting on the valve 24. The cylinder 9 and its extension 19 are enclosed in an outer casing 1 and are permanently filled with incompressed fluid, e.g., oil or water through apertures 28. 29, 31 from a tank 6 which also supplies a pump 4 serving the control valve 45 and the relay valve 24. The aperture 31 may be adjusted externally by a needle valve 32. The piston 20 which acts on the valve 45 through a rod 23 is loaded by a a spring 25 adjustable by means of a screw 26. The pressure in the conduit 44 acts on the relay valve 24 and is always adjusted as to balance the pressure of the spring 43 on the one hand and the pressure on the opposite end of the valve 45 on the other. In a modification, the piston 20 acts directly on the valve 24.
Patent GB-1340843-A (GB)
Title: High-voltage transformer
IPC: H01F38/18
Filed: 1972-02-17
Abstract: 1340843 Transformers F RAUPACH 17 Feb 1972 [20 Feb 1971] 7347/72 Heading HIT A transformer arrangement comprises two identical transformers 14, 15 in a cylinderical tank 11, the high voltage windings of the transformers being connected in parallel and the exciting windings in series or parallel. The transformers may be coupled by a coupling winding and may be disposed in off-set parallel position as shown in Fig. 4 so that the internal diameter of the tank needs to be little more than the sum of the diameters of the winding units 18, 19. The tank may be oil filled and the windings may be upright coils with cooling ducts. The transformer arrangement may be used for testing or as part of a testing transformer cascade.
Patent GB-748988-A (GB)
Title: Device for printing addresses
IPC: B41L45/02
Filed: 1954-03-15
Abstract: 748,988. Address-printing machines. STIELOW, J. H. B., [trading as STIELOW, J. H.]. March 15, 1954 [May 27, 1953], No. 7421/54. Class 100 (2). Stencilling apparatus. An address-printing device comprises a base, a manually-operated lever 1 pivoted at 1b to the base, an inking and impression roller 3 carried by an arm 2 pivoted at 2a to the lever 1, and a stencil holder 8 on the base into which a stencil cards can be placed or successively fed, the arrangement being such that when the lever 1 is operated the roller 3 first picks up ink and subsequently traverses the stencil so that a print is obtained therefrom; spring means control relative movement between the arm 2 and lever 1 so that during printing the pressure of the roller 3 on the stencil 9 is determined by the spring means. On moving the hand lever 1 to the left, the inking and impression roller 3 rolls over an ink pad 6 and thence over the stencil card 9 below which is a sheet to be printed, which is aligned by an adjustable stop 15. The card 9 is held normally clear of the sheet by blade springs 10<SP>11</SP>. The pressure of the roller 3 on the card is caused by springs 4 independently of the pressure exerted on the lever 1. The stroke of the roller 3 over the card 8 is limited by stops 17 engaging stop plates 10 adjustable by manually controlled cam discs 12 according to how much of the card 9 is to be printed from. The handle 1 may also control feeding of address cards in succession into printing position.
Patent GB-249669-A (GB)
Title: Improvements relating to electron tube apparatus
IPC: H02M7/06
Filed: 1925-03-19
Abstract: 249,669. Westinghouse Brake & Saxby Co., Ltd., (Union Switch & Signal Co.). March 19, 1925. Converting alternating and direct currents.-A rectifier of the copper oxide type, such as described in Specification 194,653, is used as the rectifier in an anangement for the supply from an alternating source of uni-directional current to the plate or filament circuit of a thermionic valve. Fig. 1 shows a detecting valve D, the plate and filament circuits of which are supplied through smoothing circuits B<1>, C and rectifiers D, E oppositely connected in pairs from a transformer K connected to an alternating current source. Fig. 2 shows the construction of the rectifying device E which consists of sections 37, 50, 51 having connections 24 - - 27. Each section comprises a number of copper discs 40 having an oxide coating 41 on one side, and sheets 39 of soft conducting material, e.g. lead foil interposed between them. The units may be surrounded by an insulating tube 36 mounted in a frame 34 and pressed into intimate contact by a screw 35.
Patent GB-182855-A (GB)
Title: Improvements in the treatment of sugar juice
IPC: C13B10/04
Filed: 1921-03-08
Abstract: 182,855. Mauss, W. March 8, 1921. Extracting sugar; purifying saccharine liquids. -Sugar juice is treated mechanically, for the separation of cane chips and other solid impurities, and chemically for the separation of albumen etc.; the solids separated are then washed with water, which is afterwards used in macerating the cane, so that sugar mixed with the solid residues is conserved. The juice from the sugar mill 1 passes to a centrifugal decanting machine 3 containing several chambers of the type described in Specifications 164,418 and 182,856, [both in Class 23, Centrifugal machines &c.], and the purified juice passes through a sampling-device 12 and a pipe 13 to a sulphuring apparatus 14. Thence it passes over a water-wheel 51 to a tank 15 to which lime-water is fed by a bucket conveyer 53 connected to the wheel 51 by a change-speed gear 54. From the tank 15 the juice passes to a heater 17, such as that described in Specification 173,709, [Class 64 (i), Heating liquids &c.], and thence through a filter 18, such as that described in Specifications 176,395 and 181,123, [both in Class 46, Filtering &c.], and a pipe 20 to the evaporators. The solid matter left on the filter is washed off by water from a pipe 31 into a decanting tank 21 into which fresh water is admitted through a float valve 22. Water for washing the filter 18 is withdrawn from the tank 21 by a pump 29 and passed to a pressure accumulator. The remainder of the water passes by a pipe 32 to a tank 33, a branch pipe 34 being provided to supply water for washing the separated solids in the centrifugal 3. The washed solids are discharged to the tank 33, the contents of which pass to a second centrifugal 36, from which the solids are discharged to waste. The liquid from the centrifugal 36 passes to a tank 39 in which is a float 40 controlling a valve 41 in the pipe 32, and thence by a pipe 2 to the mill 1. The whole of the maceration water is preferably supplied in this way.
Patent GB-1536197-A (GB)
Title: Electrical overload switching relay
IPC: H01H83/22
Filed: 1976-02-25
Abstract: 1536197 Thermal switches CUTLERHAMMER WORLD TRADE Inc 10 Dec 1976 [25 Feb 1976] 07466/76 Heading H1N A plural phase overload relay comprises a switch 30, 32 which is actuated by means 10a responsive to the currents of the individual phases when the mean of the currents on all phases exceeds a threshold or when the difference between the currents of any two phases exceeds a second threshold, the magnitude of which increases with the said mean over at least a range of values thereof. A relay for protecting a three phase motor includes a bimetal strip for each phase heated by the current flowing therethrough or through an adjacent heater. Free ends 10a of the three bimetals project through aligned slots in a pair of overlying plates 14, 15 both pivoted to a switch actuating lever 18. When a balanced overload occurs, the bimetals 10a drive the plate 14 to the left taking the plate 15 with it until an inclined edge 15c of the plate 15 abuts an adjustable ambient temperature compensating bimetal 24. Upon further movement of the plate 14 relative to the plate 15, the lever 18 is rotated to cause a spring biased lever 16 to open a set of contacts 30, 32 thereby interrupting the electrical supply to the motor. The movable contact 32 engages another fixed contact 31 connected in an alarm or indicator circuit and has to be reset by a pushbutton 50 if a spring blade 45 carrying the fixed contact 31 has been previously moved by a lever 47. When an unbalanced overload occurs, the plates 14, 15 will be moved relative to each other by the bimetals 10a causing the switch contacts 30, 32 to open. At high balanced currents in the three phases, a foot 15b of the plate 15 will slide down a ramp 13a whereby the lever 18 will be rotated so that a larger difference between any two phase currents will be necessary before the lever 18 will actuate the switch due to unbalanced overload.
Patent GB-514153-A (GB)
Title: Improvements in or relating to ships' logs or other flow meters
IPC: G01P5/07
Filed: 1938-03-10
Abstract: 514,153. Rotary meters. CHERNIKEEFF, B. March 10, 1938, No. 7516. [Class 110 (ii)] [Also in Groups XX and XL] In a ship's log or flow meter, the impeller drives a member intermittently reflecting radiation from a source to a, radiation sensitive device, the impulses of which indicate the movements of the impeller. As shown, the impeller comprises blades 17 carried by a sleeve 18 which is fixed to a collar 20. The latter is secured on a boss 21 on the shaft 22 which is mounted in bearings 24, 25. The boss 21 has a number of apertures 27 in which suction is created by the flow of fluid past the hollowed collar 20 and reduces the tendency of water to creep into the mechanism. A cylindrical shell 28 enclosing the blades 17 has a reflecting part which intermittently reflects light B passing from a source in the log body 1 to a light sensitive device. In a modification the impeller drives the reflecting member by a magnetic link through a fluid tight diaphragm, so that the light may pass from the source to the sensitive device without passing through a window or a layer of fluid.
Patent GB-705785-A (GB)
Title: Improvements in and relating to gas filled grid controlled electronic devices
IPC: H01J17/12
Filed: 1952-03-24
Abstract: 705,785. Thermionic valves. BRITISH THOMSON-HOUSTON CO., Ltd. March, 24, 1952 [March 23, 1951], No. 7521/52. Class 39(1) A gas-filled discharge device is divided into two sections by a planar grid 6, the anode having a planar active portion 17 close to the grid and a supporting portion 18 close to the envelope wall. The anode may be sealed to the envelope portion 2 in a re-entrant manner, with a heavy reinforcing plate 20 on the outer side. The grid may be formed of a pair of cup-shaped members with slots 8, brazed back to back, the flanges 3, 4 being sealed to envelope portions 1, 2 and having a terminal 5a.
Patent GB-972408-A (GB)
Title: Improvements in or relating to a device for measuring the electrical conductance or resistance of molten glass
IPC: G01N27/06
Filed: 1963-02-25
Abstract: 972,408. Conductivity measuring arrangements. EMHART MANUFACTURING CO. Feb. 25, 1963 [April 11, 1962],No. 7533/63. Heading G1N. [Also in Division G3] In a device for measuring the electrical conductance of glass through which current is being passed by two electrodes 10, 12 for heating purposes the conductance and hence the temperature is measured by deriving two signals Vv, Vi, dependent on the voltage across the electrodes and the current through them respectively, and applying one of them Vv across the ends of a slidewire resistor 24 in a resistance network, and the other between the slider 36 and one of the ends, the position of the slider 36 when there is no current through a detector in the slider lead being indicative of the conductance and resistance of the glass. The arrangement may drive a servomotor 42 to position on the slider and may control the current flow through the electrodes by means of variable transformer 14 to maintain a constant temperature. One or more fixed or adjustable resistors may be used in conjunction with the slidewire so that only a portion of the current is balanced by the slidewire. This enables the zero position to correspond with a value other than zero of conductance. Resistors 20, 22 shunting the electrodes serve as a potentiometer to produce the signal Vv and should be of a high value, to maintain the relation between Vi and the electrode current. An improved arrangement in which the signals are rectified before being applied to the potentiometer is described with reference to Fig.2 (not shown) and the arrangement includes further variable resistors for zero setting and control sensitivity. A further arrangement in which each of the heating electrodes may comprise two or more portions is described with reference to Fig. 3 (not shown).
Patent GB-161166-A (GB)
Title: Improvements in wheels for agricultural tractors and the like
IPC: B60B15/02
Filed: 1921-03-10
Abstract: 161,166. Martin, L. April 2, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Disc wheels; tyres, non-elastic.-Tractor wheels for agricultural appliances &c. consist of two side discs A with the edges flanged towards each other and provided with fixed radial plates C disposed obliquely across the space between the edges of the discs. The plates C project beyond the discs by substantially half their height. The discs, which may have apertures to permit the discharge of accumulated earth, are clamped between shoulders on a three-part axle B as shown in Fig. 5.
Patent GB-1194306-A (GB)
Title: N-Polyhalovinylthio Carboxamides and Compositions containing the same
Inventor: BROWN MELANCTHON STARR
IPC: C02F1/50
Filed: 1969-02-12
Abstract: 1,194,306. Pesticides containing carboxamides. CHEVRON RESEARCH CO. 12 Feb., 1969 [12 Feb., 1968, 30 July, 1968], No. 7694/ 69. Heading A5E. [Also in Division C2] A pesticidal composition contains an N-polyhalovinyilthio carboxamide of the formula R-CO-NH-S-C 2 X a  H 8-a'  wherein R is a hydrogen atom or a C 1-10  hydrocarbyl radical optionally substituted by halogen, each X is a chlorine or bromine atom and a is 2 or 3, together with an inert diluent or carrier.
Patent GB-1192535-A (GB)
Title: An Instrument for Use with Pipe Unions and Similar Fittings
IPC: G01C9/34
Filed: 1969-02-12
Abstract: 1,192,535. Levels. MESSWERKZEUG K. G. GUSTAV ULLRICH. Feb.12, 1969 [Feb. 12, 1968], No.7722/69. Heading G1F. A level for setting pipe unions comprises an elongated body 1 having a bubble vial 3 with viewing apertures 4, the body having a screw-threaded part 2 at one end to enable it to be screwed into the union, manual force on the body 1 enabling the union to be set in a desired orientation e.g. horizontal. A circular bubble vial 5 may be set in the end of the body 1 remote from the part 2 to enable the plumb settings to be made, otherwise the body may be screw-threaded at both ends. A transverse hole 6 provided in the body 1 near the screw-threaded part 2 for receiving a rod to facilitate the setting of the level.
Patent GB-576852-A (GB)
Title: Improvements in or connected with tubular fluorescent lamp fittings
IPC: F21V23/02
Filed: 1944-04-27
Abstract: 576,852. Condensers. REVO ELECTRIC CO., Ltd., and FELTON, A. E. April 27, 1944, No. 7853. [Class 37] [Also in Groups XI and XXXV] Auxiliary control gear for tubular fluorescent lamps such as a transformer k and a condenser a are resiliently mounted on the top of an inverted reflector to avoid hum. Felt pads f and g are interposed between the condenser a and a mounting strap d and metal base plate c, while similar pads m and n are interposed between a mounting bracket l and the transformer k and base plate c respectively. A sheet metal case b encloses the control gear, and base plate c rests on felt pads j.
Patent GB-1261234-A (GB)
Title: Electrically operated indexing mechanism
IPC: H01H3/60
Filed: 1969-02-13
Abstract: 1,261,234. Stepping switches; waveguide switches. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 13 Feb., 1969 [16 Feb., 1968], No. 7916/69. Headings H1N and H1W. The stepping drive device for a waveguide switch has a rotatable rotor which is stepped, between positions defined by an indexing device, by an electromagnetic mechanism which after each step returns to a rest position and controls a stop and damping device having rotatable and stationary abutments connected to the rotor and a stator of the device and arranged to co-operate at the end of each step to stop the rotor and to be then disengaged from each other by the stepping mechanism at its return to the rest position. The indexing device is a spindle 16 mounted in the rotor 1 and biased by a spring 17 so that a roller 18 on its off set end is urged against the sides of a square recess 15 in the end of the stator 4 so that the rotor is indexed in positions in which the roller 18 is in the corners of the recess 15. The electromagnetic drive 19 has one way drive action on the rotor 1 by means of pins 22, 23 in recesses in an axially spring-biased disc 24 which has teeth co-operating with similar teeth on a disc 26 fixed on the rotor 1 and arranged to move together in one direction only. The stop and damping device comprises a spring blade 30 with its ends in rounded pieces 37, 38 in elastic inserts 31, 32 in the stator. With the stepping mechanism in its rest position the pin 23 engages the blade 30 to hold it away from the side of the rotor disc 26 which is provided with projections 33, 34, 35, 36 to abut an edge 40 of a recess 39 of the blade and act as a damping stop to the rotor. The rotor has two curved waveguide channels which in each position interconnect waveguide channels in the stator (Fig. 2, not shown). The electromagnet drive has its coil (not shown) connected to a D.C. supply through contacts 44, 45, 46 co-operating with contact plates 42, 43 on a disc 41 on the rotor arranged such that the coil is de-energized after about 70 degrees of rotor travel. The disc 41 also has contact plates 50, 51, 52, 53 co-operating with contact springs 48, 49 in a lamp circuit to indicate the rotor position.
Patent GB-370612-A (GB)
Title: Improvements in springs
IPC: F16F1/22
Filed: 1931-03-14
Abstract: 370,612. Laminated springs. TALBOT, F. J., Globe Steel Works, Sheffield. March 14, 1931, No. 7920. [Class 108 (iii).] In a laminated spring in which each spring plate has a central rib 2 and a corresponding depression and in which a packing plate 13 is driven between one end of a hoop 3, which connects the spring plates together, and the nearest spring plate, a hollowended grub-screw 4 is screwed into the hoop 3 and passes through an aperture in the packing plate to engage the nib on the lowest spring plate. In one form, an upper packing- plate 5 is also provided and axles 7 journalled therein form pivots for divided links 8, 9 which are adjustably connected by a screwed sleeve 11 held against rotation by a split pin 12. The lower packing plate 13 is formed in such a manner that it can be driven into position without damaging the nib on the lower spring plate and for this purpose, the central aperture may be connected to the end of the plate 'by a slot. Alternatively the packing plate may be formed in two parts 18, Fig. 6, having flanges 18a to facilitate withdrawal and in a further modification, the packing plate is provided with a groove in its upper surface which extends from the aperture to one end of the plate. The plate 13 is provided with a longitudinal ridge 17 engaging a corresponding groove in'the hoop. One of the links 9, 8 may be hollow and threaded internally to receive the end of the other link and two ribs and two grub-screws, one on either side of the central axis of the spring, may be provided.
Patent GB-627840-A (GB)
Title: Improvements in or relating to devices for levelling needles in knitting machines
IPC: H01H33/985
Filed: 1946-03-14
Abstract: 627,840. Knitting-machines. HEMPHILL CO. March 14, 1946, No. 7972. Convention date, March 23, 1945. [Class 74 (ii)] Prior to transfer to the upper cylinder, the needles 3 are raised in the lower cylinder by a cam 16, acting on their sliders, until their hooks are positioned by a levelling element 14 at the correct height for the operation of a latch opener 20. The element 14, which also prevents outward tilting of the upper ends of the needles is mounted on a retractable slide 18, to which is adjustably secured the latch opener.
Patent GB-445907-A (GB)
Title: Improvements in or relating to photographic cameras
IPC: G03B19/04
Filed: 1934-10-19
Abstract: 445,907. Photographic roll - film cameras. MAYO, A. C., 28A, Onslow Road, Richmond, Surrey. Oct. 19, 1934, No. 7981/35. Divided out of 430,648. Drawings to Specification. [Class 98 (i)] A photographic camera body has two side-plates and a film guide plate extending from one side-plate to the other to divide the film-holding portion of the camera-body from the lens and shutter, which guide plate has a central exposure aperture and is curved so as to be concave towards the lens, being close to the back of the camera at the exposure aperture and curving forward at its ends to embrace the film spools, to stiffen the connection of the side-plates, and to afford a curved guide for the film itself. The construction is identical with that described in Specification 430,648.