baber/WOPTO huggingface dataset:
Patent GB-667122-A (GB)
Title: Improvements in or relating to production of compounds of the thiohydantoin series
IPC: C07D233/84
Filed: 1949-05-05
Abstract: Dithiohydantoins of the general formula <FORM:0667122/IV (b)/1> where R1 and R2 are aliphatic radicals containing up to 4 carbon atoms are prepared by reacting an a -hydroxy-nitrile of the general formula <FORM:0667122/IV (b)/2> with carbon disulphide in an ammoniacal medium.  In an example a -hydroxy-isobutyronitrile is reacted with carbon disulphide and ammonia in alcohol solution to give 5 : 5-dimethyl - 2 : 4 - dithiohydantoin.  The a -hydroxy nitriles of the above general formula are made by reacting hydrocyanic acid with an aldehyde or ketone of the formula R1.CO.R2.  The Specification as open to inspection under Sect. 91 includes also the formation of the following derivatives of the above dithiohydantoins.  (1) The 4-methyl-thio ether by treatment of the 5 : 5-dimethyl-2 : 4-dithiohydantoin with methyl iodide followed by reaction with sodium bicarbonate.  (2) A monothiohydantoin by hydrolysis of the above 4-methyl thio ether with dilute mineral acid.  (3) The sodium, calcium, strontium and magnesium salts of the 5 : 5-dimethyl-2 : 4-dithiohydantoin by treatment with the corresponding alkali or alkaline earth metal base.  (4) The 2-methyl, or 2-benzyl 5 : 5-dimethyl-2 : 4-dithiohydantoin is prepared by forming the sodium salt as above and treating with methyl or benzyl iodide.  (5) The 4-imino compound is formed when the dithiohydantoin is treated with aqueous ammonia.  (6) The imino compound formed as above is converted by direct alkylation followed by hydrolysis to the 4-imino hydantoin. (7) If instead of ammonia as in (5) above there is used hydroxylamine, the corresponding oxime is formed. Similarly hydrazine forms the hydrazone.  The 5 : 5-dimethyl - 2 - thio - hydantoin - 4 - hydrazone may be used as a reagent for detecting ketones, and the compounds formed with acetone and methyl-ethyl ketone and formaldehyde are described.  This subject-matter does not appear in the Specification as accepted.
Patent GB-528065-A (GB)
Title: Improvements in or relating to zinc base alloys
IPC: C22C18/04
Filed: 1939-04-21
Abstract: 528,065. Alloys. IMPERIAL CHEMICAL INDUSTRIES, Ltd. April 21, 1939. No. 12090. Convention date, April 23, 1938. [Class 82 (i)] Zinc alloys, particularly for engravers' plates, contain 0.05-0.4 per cent. of aluminium, and 0.0004-0.009 per cent. of magnesium, the remainder being zinc of at least 99.85 per cent. purity, preferably at least 99.99 per cent. In making the alloys, aluminium may be introduced as an alloy of 1 part of aluminium and 2 parts of zinc, and magnesium as an alloy of 1 part of magnesium and 10 parts of zinc.
Patent GB-1350871-A (GB)
Title: Photometric analyzer employing fibre optic light transmitting means
IPC: G01N21/72
Filed: 1972-03-15
Abstract: 1350871 Optical apparatus BENDIX CORP 15 March 1972 [22 March 1971 18 May 1971] 12144/72 Heading G2J [Also in Division G1] In photometric apparatus a sample burner or a reaction chamber which operates at temperatures above ambient, is fitted with a fibre optic light guide by which atomic spectral emission may be conducted to a detector located remote from the chamber. In the Fig.1 arrangement the sample to be analyzed is passed through jet 12, flame enrichment gases being provided via port 16. Light guide 21 views the flame via cylindrical quarts window 17, and at its exit end adjacent wavelength filter 30 is flared to collimate the light. The photo-multiplier 26 output is amplified and displayed or recorded. In Fig.3, the exit end of the guide is tapered to a point which is at the focus of a collimator lens 32. In Fig.4, the guide views an area above the flame, a mirror 34 being provided to enhance detection. Instead of a combustion chamber, a reaction chamber in which chemiluminescence is produced may be monitored e.g. for use in detection of nitric oxide and ozone.
Patent GB-187186-A (GB)
Title: Improvements in or relating to trouser stretchers
IPC: A47G25/72
Filed: 1922-05-01
Abstract: 187,186. Palmer, J. F., Aylett, T. J., and Palmer, W. D. May 1, 1922. Combined presses a n d stretchers. - A combined trouser press and stretcher comprises a convex surface with clamping and stretching means at each end. The surface 12 is supported between side pieces 24 having inturned feet 25. At each end a composite roller comprising two cylinders 26 with an interposed ratchet wheel 27 is carried between brackets 29 pivoted to the side walls by studs 31. Each bracket is slotted to receive the spindle 32 of a hollow roller 33, so that a downward and outward movement of the rollers 33 causes rotation of the rollers 26, the engagement of a pawl 35 with the ratchet 27 preventing reverse movement. The rollers 33 are connected to narrow flexible battens 36 at each side of the surface 12 by means of narrow springs 37, which are coiled within the rollers 33 and connected to the spindles 32. The springs pass through slots in the rollers 33 and are fixed to the battens by plates 39. The brackets 29 at one side are hinged so that the rollers 33 and battens may be raised. In operation the trousers are laid on the surface 12, the battens placed in position, and the rollers 33 given a downward and outward movement, when the tension on the springs 37 clamps the trousers between the rollers 33, 26 and applies pressure through the battens 36. Additional feet 40 may be hinged to the side pieces 24.
Patent GB-1472802-A (GB)
Title: Method and apparatus for applying a transparent protective  coating to a sheet
IPC: B29C65/18
Filed: 1974-04-20
Abstract: 1472802 Laminating method and apparatus RICOH KK 20 April 1974 [20 April 1973 1 May 1973] 12173/74 Heading B5N A method of applying a protective transparent coating to a sheet comprises: (a) preparing a composite material by forming a release layer on a heat resistant backing layer and then releasably adhering a transparent thermal bonding layer on to the release layer, the thermal bonding layer being polyvinyl chloride, polyvinyl acetate or a polyamide; (b) maintaining the composite material so formed in a state of tension; (c) placing said sheet and said composite material together with the thermal bonding layer in face-to-face contact with the sheet; (d) applying heat and pressure to bond the thermal bonding layer to the sheet; and (e) separating both the heat resistant backing layer and the release layer from the thermal bonding layer which remains bonded to the sheet. The sheet may be a photograph, an identification card or a railway pass, the heat resistant backing layer may be polypropylene, an acetate or a fluorocarbon resin, and the release layer may be an acrylic or a silicone resin. An apparatus for effecting the method comprises: (a) first means for making a composite material by forming a release layer on a heat resistant backing layer and then releasably adhering a transparent thermal bonding layer on the release layer; (b) second means for maintaining the resultant composite material in a state of tension; (c) third means for placing the sheet and the composite material together with the thermal bonding layer in face-to-face contact with the sheet; (d) fourth means for applying heat and pressure to bond the thermal bonding layer to the sheet; and (e) fifth means for separating both the heat resistant backing layer and the release layer from the thermal bonding layer. In the embodiment described with reference to Figs. 9 and 10, the composite material from roll 1 having sprocket holes 1a is fed over sprocketed rollers 4 and 5 co-operating with rollers 7 and 8, the rollers 4 and 5 maintaining the portion 9 of the composite material in tension. Laminating rollers 10 and 11, roller 10 being provided with means for external or internal heating are mounted on shafts 10a, 11a, roller 11 being disposed in a box 12 and means being provided for moving roller 11 in and out of its operative position, means 22 being provided to heat roller 11. In operation, the card 20 forming the sheet material is fed through guide member 32 towards the rollers 10 and 11, a switch being closed to rotate the take-up reel 6 and feed rollers 4 and 5 and also to move roller 11 on to its operating position, the card 20 carrying the bonding layer being ejected on to the receiving table 34 by keeper plate 33 whilst the backing layer and the release layer are wound on to take-up reel 6.
Patent GB-540347-A (GB)
Title: Improvements in machines for setting or driving rivets and the like
IPC: B21J15/26
Filed: 1940-07-26
Abstract: 540,347. Riveting; drilling-machines. BAXTERS (BOLTS, SCREWS & RIVETS), Ltd., and DENT, W. C. July 26, 1940, No. 12179. [Classes 83 (iii) and 83 (iv)] In a machine for setting rivets &c. in which the rivets are fed in succession to a holder for operation by the setting tool 4, the work is visibly located by means of a pin 20 separate from the tool 4. The pin 20 may comprise a drill, driven by a pneumatic or other motor in a casing 20a to clear the holes in the work and it is mounted on a frame 19 pivoted at 18 to a slide 14 normally held up against the machine frame 1 by springs 70, Fig. 4. A pedal is connected by a yielding coupling, as described in Specification 540,345, to a crank lever 32 which acting through link 33, and an extension 34 of the slide 14, moves this down to enter the drill or pin 20 into the hole in the work. The extension 34 acts, through an arm 48, spring 49, and rod 50, to press a clamp 51 on the work and this is held down by a spring catch 53. The operation of the pedal also starts the rotation of the shaft 11, e.g. as in Specification 540,345, causing the cam abutment 40 to be removed, thus disconnecting the pedal, causing the cam 55 to act through crank levers 56, 32 to lift the slide 14, and the pin 20 and a crank 12 and toggle 7, 8, 9 to lower the tool 4. The block 9 then acts, through a telescopic link 59, slide 60, and link 61, to swing the frame 19 against the action of a spring 63, so that jaws 25, holding a rivet 26 received from a shoot 27, replace the pin 20. The jaws are on arms 22 pivoted at 23 to the frame 19 and pulled together by a spring 24 but in the rivet-receiving position held slightly apart by a wedge 28. A projection 64 on the block 9 then engages another 65 on the rod 34 and the slide 14 is thus again lowered to push the rivet through the work. A conical surface 66 on the tool shank then engages and separates the arms 22 to release the rivet and the tool finally sets it against an anvil 5. At about this time a projection 68 on the block 9 releases the catch 53 from the slide 50 so that the clamp 51 is raised by its spring 52. During the return of the tool the slide 14 is raised and the frame 19 returned to its original position. The clutch is released automatically after one revolution. Specification 540,348 also is referred to.
Patent GB-574910-A (GB)
Title: Improvements in micrometer gauges for measuring internal diameters
IPC: G01B5/08
Filed: 1943-07-27
Abstract: 574,910. Gauges. HIRSCHMANN, O. July 27,1943, No. 12185. [Class 106 (ii)] A micrometer gauge for measuring internal diameters comprises a casing 1 with a fixed cam 2 and a fixed drum 11 with a scale, the casing carrying a shaft 5 rotatable by an indicating drum 12 corresponding to the drum 11 and an eccentrically mounted bearing 7 for an adjustable contact roller 8 or cam 21. The roller or cam is held on its bearing by a plate 4. To gauge bores of different diameters, rollers of different sizes are provided, or as shown in Fig. 6, the cam 21 may comprise portions of different radius.
Patent GB-861748-A (GB)
Title: Improvements in and relating to indicators and indicating systems
IPC: G09D1/00
Filed: 1959-04-10
Abstract: 861,748. Indicators. HORTON, W. G. April 10, 1959, No. 12204/59. Class 3(2) An indicator comprises a flanged metal plate 7 which has a piece of graph paper 10 glued thereto and a protective film 11 of transparent plastic. The plate 7 also carries opposed plates 12 which are grooved to receive endless indicating bands 15. The indicating tabs 16, 17 are coated with an "ever tacky" adhesive and may comprise a channel-shaped member adapted to receive a card or strip, see Fig. 5 (not shown). The plate carries a pivoted flanged strip 30 adapted to be held in an overlapping position by lugs 36, 37. The plate may carry an additional flanged strip at its other end to define therewith a groove for receiving the ends of elongated indicia-carriers, see Fig. 2 (not shown).
Patent GB-884998-A (GB)
Title: Electric arc cutting of metals
Inventor: BECK PETER LESLIE
IPC: B23K35/38
Filed: 1957-04-15
Abstract: 884,998. Cutting by fusion. BRITISH OXYGEN CO. Ltd. April 9, 1958 [April 15, 1957], No. 12234/57. Class 83 (4). In the constricted arc cutting of metals by a non-consumable electrode, nitrogen is used as the shielding gas. The nitrogen preferably containing less than 0.005% oxygen as an impurity. The metals cut may be aluminium, copper, bronze or stainless steel and the cutting head may be of the kind described in Specification 872,726, using a thoriated tungsten electrode and an electro-graphite nozzle insert. In an alternative embodiment, Fig. 3, a copper nozzle 13 is secured to a nozzle body 13 and encloses a cooling water passage 14.
Patent GB-1235075-A (GB)
Title: Anti-static coating
Inventor: WOOD HENRY WALTER
IPC: G03C1/89
Filed: 1969-03-07
Abstract: 1,235,075. Photographic materials having anti-static layer. ILFORD Ltd. March 2, 1970 [March 7, 1969], No.12268/69. Heading G2C. A photographic material having improved surface conductivity has coated on the surface thereof (i) an aqueous alcohol solution containing at least 0À2% by weight of an alkali-metal polyvinyl sulphonate or (ii) an aqueous solution of at least 0À2% by weight of an alkali-metal polyvinyl sulphonate and at least 0À1% by weight of KC1. When the aqueous-alcoholic solution (i) is used, alcohol is preferably added to an aqueous solution of sodium polyvinyl sulphonate until opalescence occurs. When solution (ii) is used, gelatine may also be present. The solutions may form part of a topmost emulsion layer, a supercoat layer or a backing layer such as an anti-halation layer.
Patent GB-1032603-A (GB)
Title: Internal combustion engine cooling system
IPC: F01P11/02
Filed: 1963-03-28
Abstract: 1,032,603. Cooling systems for internalcombustion engines. FABBRICA ITALIANA MAGNETI MARELLI S.p.A. March 28, 1963 [March 29, 1962], No. 12273/63. Heading F4U. An I.C. engine cooling system is pressurized by compressed air and includes one or more valves F which normally connect an air compressor (not shown) to the air space above the liquid level in the radiator A. The arrangement is that when a part of the vehicle such as the bonnet G or radiator cap A<SP>1</SP> is moved to gain access to the cooling system, a valve F is actuated automatically to vent the system to atmosphere and to cut off the compressed air supply. The system shown includes an air line B, D and a pressure limiting device C. In the position shown, the system is connected to atmosphere through a valve chamber F4, hollow valve stem F1, ports F9 therein, and valve chamber F8. As the bonnet G is closed, the bonnet contacts the valve piston and moves it to the right, so moving the valve plate F2 from its seat and at the same time closing the air path to atmosphere through the stem F1. Valve chamber F3 is connected to the air compressor and movement of valve F2 from its seat interconnects valve chambers F3, F4, thus pressurizing the system through line D, pressure reducing device C and line B.
Patent GB-1018716-A (GB)
Title: Electric motor control systems
IPC: B60L15/10
Filed: 1964-03-24
Abstract: 1,018,716. Control of D.C. motors. WESTINGHOUSE ELECTRIC CORPORATION March 24, 1964 [April 3, 1963], No. 12278/64. Heading H2J. Acceleration and dynamic braking of traction motors M1, M2 is effected by a master controller which is notched automatically by a bi-stable magnetic amplifier MA having control windings 16, 18 sensitive to motor current. The controller is pneumatically actuated and is controlled by electromagnetic valves BV, PV energized by the magnetic amplifier, there being a Zener diode Z in their circuit which prevents spurious operation by blocking feeble currents. A manual controller MC selects accelerating or braking operation, and also switches a resistor network 23 in a bias winding 22 to give different notching rates for the two conditions. Anaclclitional bias winding 24 is connected to a differential transformer 34 which has a core 35 moved by the manual controller in such a way that the braking rate at least can be varied by movement of the controller. The transformer and the magnetic amplifier are supplied from a static inverter IV. During acceleration the motors operate as series machines connected in parallel, but for dynamic braking armatures and fields are cross-connected through a common resistor BR.
Patent GB-916732-A (GB)
Title: Improvements in and relating to cams
IPC: F01L1/16
Filed: 1960-04-06
Abstract: 916,732. Cams. GOTAVERKEN A.B. April 6, 1960 [July 10, 1959], No. 12283/60. Class 80 (3). [Also in Group XXVII] A cam disc gives a reciprocatory element a lift curve 23, in which the rise and fall parts respectively comprise a top portion and a bottom portion 12, 13, of which the top portion is part of a first cosine curve and the bottom portion is composed of a part of a second cosine curve 17 and a superimposed third cosine curve 22, the second curve at the joining point between the portions, having a lift height and slope equal to those of the first portion, the wavelength of the third curve being equal to the distance between the initial point of the lift curve and the joining point and its amplitude being equal to the second cosine curve multiplied by the square of the 360th part of its wavelength measured in degrees. The curves 25 and 26 represent the inertia of the reciprocating parts and the desired spring force curve.
Patent GB-491547-A (GB)
Title: Improved device for levelling and locking the healds of looms for weaving
IPC: D03C1/14
Filed: 1937-04-30
Abstract: 491,547. Heald - levelling devices. ROTTON, W. S., and PATERSON, J. D. April 30, 1937, No. 12307. [Class 142 (i)] In heald-levelling devices for Leeming and other dobbies, a levelling bar c journalled in brackets can be turned by operating a handle lever from a position wherein it acts as a stop on which the lowered bowl levers rest to a position wherein it raises these levers, a second levelling bar d connected by lever mechanism to the first being similarly operated. At the same time, a finger h on the bar d is moved into the path of projections i<1>, i<2> on a disc i on a gear wheel in the train of gears by which and a hand wheel the dobby can be turned over when the power drive is disconnected. The abutments prevent the dobby being thus turned over, when the heald-levelling means have been operated. Furthermore, a short arm m on the bar d is connected to a slotted rod n receiving a pin on the usual clutch fork p on a vertical shaft driving the dobby. This rod prevents movement of the clutch to restart the dobby until the heald-levelling means have been moved into inoperative position. A modification is described wherein only one levelling bar is used.
Patent GB-1177174-A (GB)
Title: An Improved Arrangement for the Protection from Electrical Interference of Telecommunication Cables from the Proximity Effect of High Power Installations
IPC: H04B3/28
Filed: 1967-03-16
Abstract: 1,177,174. Suppressing interference. VEREINIGTE DRAHT-und KABELWERKE A.G. 16 March, 1967 [16 March, 1966], No.12350/67. Heading H4R. In an arrangement for suppressing longitudinal currents induced by adjacent power lines in a telecommunication cable with a conductive sheath or with a metallic conductor which does not envelop the cable, by increasing the magnetic coupling between the conductive element and the telecommunication conductors by associating at least at one point, one or two turns with a magnetic core, the continuity of the conductive element is broken at 2 and a winding 7 or a winding W 2  of a matching transformer is connected across the break and inductively coupled with the core. Supplementary capacitors may be added for, for example, the purpose of tuning.
Patent GB-982172-A (GB)
Title: Improvements in or relating to cooking by means of electricity
IPC: H05B3/00
Filed: 1960-04-07
Abstract: 982,172. Cooking apparatus. K. ZAIDENER. April 5, 1961 [April 7, 1960; May 31, 1960], No. 12479/60. Heading A4D. [Also in Division H5] Apparatus for cooking sausages comprises an open-topped water container 12 for receiving a sausage, a lower contact (not shown) arranged at the base of the container, an upper contact 16 arranged to move through the open top of the container from a retracted position outside the container to a working position within the container where it contacts the top end of the sausage within the container, and a timer arranged to effect cut-off current flow through the contacts and retraction of the second contact after a cooking time has elapsed. In the arrangement shown the upper contact 16 is secured to a telescopic rod 18 carried by an insulated bracket 19 slidably mounted on a carrier 20 which is mounted on a pivot 21 and also supports a hood 11, an electric motor 33 connected by a chain 34 to a projection 35 on the bracket 19, and a bell-crank lever 36 having a finger 37 which engages the projection 35 and a finger 38 which engages a catch 39 secured to a shield 31. An emergency plunger 40 can disengage the finger 38 from the catch 39. A hand lever 22 mounted on the pivot 21 carries a bar 23 which engages the carrier 20 and a stop 24, and is connected by an arm 28 and a spring 29 to a clockwork timer 30. A multiple contact switch 43 is mounted on the shield 31 and carrier 20. In operation, the timer 30 is set to the required cooking time and the lever 22 depressed to move carrier 20 to a vertical position where finger 38 engages the catch 39. Movement of finger 37 allows the upper contact 16 to move down to contact the sausage. The lever movement starts the timer 30 and closure of the contacts 43 applies current to the cooking contacts. At the end of the cooking time the timer 30 operates a relay switch 48 which cuts off the current to the cooking contacts and energizes the motor 33 to raise the upper contact 16. The projection 35 trips the lever 36 and the carrier 20 falls back to the position shown in which its weight is supported by swivel blocks 27 bearing against compression springs 25. Opening of the contacts 43 disconnects the current supply. The motor 33 may be replaced by a weight which is raised on closing the machine and is released by means of a solenoid to raise the upper contact 16.