baber/WOPTO huggingface dataset:
Patent GB-1292934-A (GB)
Title: Fm communications band limited detector
Inventor: YACKISH THOMAS MICHAEL
IPC: H03D3/04
Filed: 1970-02-24
Abstract: 1292934 Frequency discriminating MOTOROLA Inc 24 Feb 1970 [10 March 1969] 8722/70 Heading H3A A frequency discriminator for an f.m. signal which alternates between first and second voltage levels includes a timer responsive to a transition from the first to the second level to enable an AND gate for a predetermined time, a second input to the AND gate receiving the f.m. signal. As described, a transition of the signal at the base of transistor 40 from a low to a high level sets monostable 19 to its unstable state, producing an enabling signal for AND gate 20 which turns off transistor 64 for a period γ. A subsequent transition from a high to a low level will turn off transistor 67 and if this occurs before the termination of period γ both 64 and 67 are off together until the termination of period γ, producing an output pulse which is fed to filter 21. If the period of the input signal is greater than 2γ no output is produced. As the period of the input signal decreases the output increases linearly to an upper limit where the period is equal to γ. In an alternative arrangement the monostable circuit is replaced by the circuit of Fig. 8 in which input pulses are differentiated by CR 27, 28 and the positive spike switches off transistor 30 to discharge capacitor 35, and start the time period. Capacitor 35 then charges through resistor 36 until the potential across it is sufficient to switch trigger circuit 37, ending the timed period.
Patent GB-539578-A (GB)
Title: Improvements in or relating to devices for dipping or deflecting the lightbeam of headlights
IPC: B60Q1/14
Filed: 1940-03-15
Abstract: 539,578. Reflectors. BEDDOW, V. J. March 15, 1940, No. 8762/39. [Class 75 (ii)] In a motor vehicle lamp of the kind in which an electromagnet is provided for moving a pivoted reflector against the action of a spring or gravity, the lamp is provided with a ring b to which the reflector a is pivoted diametrically at c and which carries a saddle d at the rear of the reflector. An electromagnet g is mounted on the saddle and when energized attracts an armature h secured to a lever i connected by a link m to the reflector so that the latter is dipped. When the electromagnet is de-energized it is restored to its normal position by a spring l or gravity.
Patent GB-472548-A (GB)
Title: Improvements in and relating to drawing frames for jute and other long fibred material
IPC: D01H13/16
Filed: 1936-03-24
Abstract: 472,548. Stop - motions and alarms for drawing - frames. MACKIE & SONS, Ltd., J., and MACKIE, J. P. March 24, 1936, No. 8797. [Classes 120 (ii) and 120 (iii)] On the occurrence of a lap in a drawing- frame for jute and other long-fibred materials having a number of sets of drawing rollers 1, 2 loaded through compound lever systems 6 .. 9, movement of the levers 6 .. 9 actuate a stop-motion and/or an alarm. The sets of levers 6 .. 9 are connected to a common stop-motion control device, e.g. the shaft 12 through independently operating one way connections, e.g. the lever 11 and the ratchet and pawl 10, 14, which remain inoperative without adjustment in all allowable settings of the lever systems and whether all the lever systems are similarly set or not. Each pawl 14 may be moved out of engagement with its ratchet 10 by a pin 19 carried on an arm 20 and operated by a handle 17. When a lap forms on any of the rollers 1 or 2, the corresponding lever 9 is lifted and the shaft 12 turned clockwise to break the circuit normally closed by the press button 15. This movement of the shaft 12 lifts the pawls 14 of the other sets into the top teeth of their ratchets 10 and to restart the frame after stoppage the handle 17 is first moved to the off position to disengage the pawls 14 and allow the levers 11 to swing back against the stops 21.
Patent GB-1036834-A (GB)
Title: Refuse collecting vehicle
IPC: B65F3/28
Filed: 1965-03-02
Abstract: 1,036,834. Loading refuse vehicles. HER- -GULFS GALION PRODUCTS Inc. March 2, 1965 [March 12, 1964], No. 8868/65. Heading B8E. A refuse vehicle has a tailgate 23 pivoted to the rear of the body 20 in which a precompacting and ejecting plate is reciprocable. A packer blade 55 feeds the refuse from a receiving bin 52 to the main body 20 and extends across the tailgate being pivoted thereto at 60. The actuation path of the blade 55 is guided by rollers 59, 64 moving in cam guides 58, 63 on movement of the blade by hydraulic cylinders 68. From the rest position shown the rollers 64 are caused to move along the leg 71 of the cam 63 by the holding of the stub rod 60 of the rollers 59 by a latch 75. The paths 71-74 are then successively followed upon the extension and then contraction of the cylinder piston 67. A gate may he provided at the junction 73, 74 to ensure that the path 74 is followed or is manually releasable to cause the rollers to return along the leg 73 to raise the blade 55 to allow the removal of any obstruction in the refuse. When the vehicle is full the return of the piston 67 to the rest position shown is halted with the lower arms 80 of the latch 75 engaging the neck 60. Subsequent extension of the piston 67 will then cause the tailgate to be pivoted upwards to allow emptying of the body by the ejection plate therein.
Patent GB-236636-A (GB)
Title: Improvements in fuel briquettes
IPC: C10L5/10
Filed: 1924-04-08
Abstract: 236,636. Prescott, W., and Worger, D. F. April 8, 1924. Composition fuel.-Fuel briquettes are made by mixing together small coal or duff, crushed limestone or carbonate of lime, glue, formaldehyde and water and pressing the mixture. A mixture of bituminous coal and anthracite is preferably employed and amounts to 91.5-93 per cent of the weight of the briquettes. About 1 per cent of glue and 0.2 per cent of limestone are added and the whole is mixed with 6-7 per cent of water. About 0.15-2 per cent of a 40 per cent solution of formaldehyde is then added in bulk or by spraying. The glue may be dissolved in the water before mixing or may be added in powder form, in which case it is preferably mixed with the limestone before being added to the coal dust.
Patent GB-278970-A (GB)
Title: Improvements in rotary printing machines
IPC: B41F13/28
Filed: 1927-03-31
Abstract: 278970 Winkler C 31 March 1927 Headings F2A AD16 A6E2 and A7D1 Impression adjustments. -To adjust the pressure between the printing and impression cylinders of a rotary machine, the shaft e of one of these cylinders is mounted eccentrically in a bush b which is adjustable in the machine frame a and is held in adjusted position by screws c passing through segmental slots in an extension of the bush b. To hold the shaft e firmly, a split conical sleeve d is fitted in the bush b and is adjustable longitudinally thereto by means of a nut f operable by a spanner, and held in position by a segment g screwed to the bush. The end of the shaft is kept in position longitudinally by a screw i, which is held in its adjusted position, relatively to a cover h attached to the bush b, by means of a split wedge-shaped sleeve k adjustable by a nut l.
Patent GB-984420-A (GB)
Title: Improvements in or relating to synchronous electric machines
IPC: H02P29/00
Filed: 1961-03-10
Abstract: 984,420. Synchronizing arrangements. MASCHINENFABRIK OERLIKON. March 10, 1961 [March 19, 1960], No.8911/61. Headings H2H and H2J. A circuit for applying an increased excitation current to a synchronous machine when it falls out of step comprises a resistor 9 in the excitation circuit the voltage across which is compared with a rectified fraction of the stator voltage from a potentiometer 6 through a relay winding 7a. If the machine slips a pole a voltage is induced in the field windings 2 opposite to that provided by the exciter 9 causing the current in resistor 9 to reverse hence causing relay 7 to operate and be held by winding 7b and contacts 7c. Further contacts 7d shunt a resistor h increasing the reference voltage to a regulator r, thus increasing the output to the exciter field winding b which returns the current in field winding 2 to its correct direction and causes the machine to slip back into step. The current in resistor 9 returning to its normal direction causes the relay 7 to deenergize. In an alternative arrangement, the relay 7 is replaced by a feed-back amplifier.
Patent GB-1139405-A (GB)
Title: Process for the production of clay-bound molecular sieves
Inventor: WOLF FRIEDRICH
IPC: B01J20/18
Filed: 1966-03-01
Abstract: 1,139,405. Clay-bound molecular sieves. FARBENFABRIK WOLFEN VEB. 1 March, 1966, No. 8948/66. Heading C1A. Formed molecular sieve bodies are made by adding a clay to one or more of the reactants for the synthesis of the zeolite or to the reaction mixture, before, during or after the crystallization of the zeolite, and forming the mixture of zeolite and clay into the molecular sieve bodies which may be dried and calcined up to 750‹ C. The clay is preferably added in an amount of 5-30% by weight, of the expected yield of zeolite. The moist zeolite-clay mixture obtained after separation of the liquid phase of the reaction mixture may be subjected to ion exchange, although it is preferred to suck the mixture dry first. The clay may be a kaolinite, illite, halloysite, montmorillonite, attapulgite, palygorskite, bentonite or a mixed clay. Ions in the zeolite may be exchanged for metal ions of Groups I, II, III, VIA, VIIA or VIII of the Periodic System. Examples refer to the following in admixture with clay: sodium zeolite A, manganese zeolite A, potassium zeolite 3A, sodium zeolite 13X, calcium zeolite (10X), silver zeolite X, sodium zeolite Y and synthetic mordenite.
Patent GB-857255-A (GB)
Title: Temperature controlled air filter
IPC: B01D46/10
Filed: 1959-03-16
Abstract: 857,255. Temperature-responsive actuating elements. AIR-MAZE CORPORATION. March 16, 1959 [March 20, 1958], No. 8950/59. Class 64(2) [Also in Groups XXVIII and XXIX] A thermal element 96 actuating a flap valve 75 in a filter (see Group XXVIII) comprises a casing 97 containing a rubber member 104 surrounded by heat-responsive wax-like material 121 and having an axial dead space 105 into which projects the pointed end 109a of a valve actuating rod 109. Thermal expansion of the material 121 squeezes the rubber member 104 so as to reduce the dead space 105 and force the rod 109 outwardly against a valve return spring 123. In the event of the rod 109 being in its limiting outward position further expansion of the material 121 is accomodated by displacement of the element 96 against a spring 99. Specification 674,468 is referred to
Patent GB-552980-A (GB)
Title: Improvements in or relating to hydraulic presses
IPC: B30B15/18
Filed: 1942-06-30
Abstract: 552,980. Hydraulic presses. KIRKSTALL FORGE, Ltd., and COWELL, F. R. June 30, 1942, No. 8998. [Class 69 (ii)] A single-acting hydraulic press in which a diehead 12 attached to a moving cylinder 13 is moved to working position under control of a valve operated by a spring-controlled lever 28 and a pedal mechanism 22 ... 27, and is returned when the valve is closed by a weight 16 or a spring is constructed so as to prevent shock at the end of the return movement. To this end a cam 34 carried by a crosshead 11 moving with the die is arranged to act upon a roller 33 mounted in the lever 28 so as to open the valve momentarily and admit pressure which slows up the moving portion of the press. The cam 34 is shaped to permit the lever 28 to return quickly.
Patent GB-1240058-A (GB)
Title: Enzyme-containing detergent compositions
IPC: C11D3/386
Filed: 1969-02-19
Abstract: 1,240,058. Enzyme-containing detergents. PROCTER & GAMBLE CO. 19 Feb., 1969 [12 April, 1968], No. 9009/69. Heading C5D. An enzyme-containing detergent composition comprises, by wt., a mixture of an organic detergent and an alkaline builder salt in a weight ratio of alkaline builder salt to organic detergent of 30: 1 to 1: 4, 0001 to 10% of an alkaline protease which is (1) a subtilisin derived from Carlsberg Bacillus subtilis, (2) a subtilisin derived from an X-ray mutated Bacillus subtilis or (3) a mixture thereof, and 0À0003 to 3% of an alpha amylase, in a molecular ratio of alkaline protease to alpha amylase of 30: 1 to 3: 1. The composition is preferably in the form of granules comprising by wt. (A) 80-98% of detergent granules having a pH in aqueous solution at a concentration of 0À12% wt. of 8À5 to 11, and comprising alkaline builder salts and organic detergents in the aforesaid proportions; (B) 2 to 20% of enzyme carrier granules having a pH in saturated aqueous solution of 5À0 to 10À5 and comprising by weight of granules (1) 20- 80% sodium tripolyphosphate or mixtures of sodium tripolyphosphate and sodium pyrophosphate, (2) 5 to 50% anionic synthetic organic detergent, (3) 1À0 to 7À0% water, (4) 0À01 to 50% of the aforesaid alkaline protease and (5) 0À003 to 15% of an α-amylase, (4) and (5) being in the aforesaid proportions. The organic detergents may be soap, anionic, nonionic (including amine oxides), zwitterionic or ampholytic synthetic detergents or mixtures thereof. The builder salts may be (A) inorganic e.g. alkali metal carbonates, phosphates, polyphosphates or silicates; (B) organic e.g. alkali metal, ammonium or substituted ammonium polyphosphonates, polyacetates or polycarboxylates; and mixtures of (A) and (B). The polycarboxylate salts are as described in Specification 1,054,755. Other ingredients may be (a) bleaching agents e.g. sodium perborate, (b) inert salts e.g. Na 2 SO 4 , (c) conventional detergent adjuvants.
Patent GB-763492-A (GB)
Title: Improvements in or relating to cylinder liners
Inventor: HOWLETT JOHN WILLIAM
IPC: F04B39/12
Filed: 1954-03-29
Abstract: 763,492. Heat treatment of cast iron. WELLWORTHY, Ltd. June 28, 1955 [March 29, 1954], No. 9127/54. Class 72 [Also in Group XXVI] A method of hardening and tempering a cast iron cylinder liner having a flange adjacent one end comprises differentially heating the liner so that part of the body of the liner is heated to above the critical temperature to produce a markesite structure on quenching and the flange is left in the " as cast " condition. As shown, a liner 1 is suspended in a furnace 2 heated by elements 3 in such manner that the flange 4 is not heated. After quenching the body part has a martensitic structure while the flange is unchanged. A ribbed cap 6 of copper, which may be cooled by a current of air, may be placed on the flange to dissipate heat. In a modification the liner may be inverted with the flange resting on a base, e.g. of cast iron, which may be water cooled.
Patent GB-657626-A (GB)
Title: Improvements relating to frequency discriminator circuits
Inventor: WHITE ERIC LAWRENCE CASLING
IPC: G01R25/00
Filed: 1948-04-01
Abstract: 657,626. Automatic frequency control systems. ELECTRIC & MUSICAL INDUSTRIES, Ltd. April 1, 1948, No. 9187. Drawings to Specification. [Class 38 (iv)] [Also in Group XXXVI] To maintain the frequency of a source of variable frequency electrical oscillations equal to that of a reference source, a thermionic valve counting circuit of the type described in Specification 471,731, LGroup XXXVI], is arranged to supply to one condenser increments of charge at a rate dependent on the frequency of the reference source while a similar counting circuit supplies to another condenser increments of charge at a rate dependent on the frequency of the variable frequency source, and the two condensers charge, in opposite senses through resistances, a third condenser, the potential across which, being dependent on the difference frequency, serves for frequency correction. Inequalities in the two counting circuits may be compensated by relative adjustment of the H.T. supply potential or by trimming condensers. Specification 657,625 also is referred to.
Patent GB-1379456-A (GB)
Title: Spring clips
IPC: F16B21/16
Filed: 1972-02-29
Abstract: 1379456 Circlips; retaining parts on shafts M FISCHER 29 Feb 1972 [1 March 1971] 9194/72 Headings F2H and F2U A sheet metal or plastics spring clip for resiliently restraining axial play of a member M on a bearing shaft B includes an arm 2 locatable in a recess in the shaft, a spring bow or curved portion 3, and an arm 4 encirling the shaft and having a pair of ears 5 extending from arm 4 beyond arm 2 to bear against the member M at an acute angle. Each ear 5 has a rounded corner to abut the member M with the result that as axial play of the member M increases the compensating spring force provided by the portion 3 increases more than proportionately since the effective lever arm of the spring clip is shattered. The arm 2 is preferably U-shaped, the two legs of the U engaging in a circumferential groove 1 in the shaft. The arm 4 may include means engaging the legs of the arm 2 to limit relative movement therewith and thus to ensure that the clip is not accidently disengaged from the shaft. The spring characteristics of the clip can be altered by providing a cut out (10) in the portion 3 as in Fig. 4 (not shown).
Patent GB-162165-A (GB)
Title: Improvements in and relating to securing drawers arranged in tiers
IPC: E05B65/46
Filed: 1920-03-30
Abstract: 162,165. Thomson, R., and Pollard & Co., Ltd., E. March 30, 1920. Drawers, securing simultaneously.-A tier of drawers is locked by a rod fitted with cross-bolts which engage in recesses in the drawers, the rod sliding in the style d, at the top of which a recess 8 is cut. The recess is fitted with a plate 9 having a slot 10 in which slides a thumb-piece 5 riveted to the rod 1 and carrying a shutter 7. The plate 9 is coloured, and the position of the shutter indicates the position of the rod and shows whether the drawers are locked or free. The cross-bolts 2, 2<a> are carried by the rod 1 and the bolt 12 of the lock 11 can be shot under the bolt 2a when the rod is pulled up by the thumb piece, locking the rod 1 in position for securing all the drawers. When the bolt 12 is withdrawn by the key 13, the rod 1 drops until the bolts 2, 2a are resting in the recesses 3 in the struts b, freeing the drawers. The engaging edges of the recesses 3 may be reinforced by a metal plate 4, and the rod 1 may be fixed diagonally or horizontally instead of vertically.
Patent GB-454160-A (GB)
Title: Improvements in and relating to sorting and distributing apparatus
IPC: B07C7/00
Filed: 1935-03-25
Abstract: 454,160. Positive clutches. SOVEX, Ltd., Union Works, Bear Gardens, Southwark, and CADMAN, H. W., 292, Avery Hill Road, Eltham, both in London. March 25, 1935, No. 9237. [Class 80 (ii)] [See also Groups XXX and XXXVIII] A cam 21 for operating discharge devices in a lettersorting apparatus is loosely mounted on a shaft 33, Fig. 4, but carries a pawl 39, Fig. 7, which may be engaged with one of a number of recesses 48 in a member 47 fast on the shaft, by a plunger 49, the consequent driving of the cam carrying a roller 40 on the pawl into contact with a fixed ring 43 which maintains the pawl in engaged position until the roller arrives at the gap 44. More than one gap 44 and plunger 49 may be provided about the ring periphery. The plungers may be operated by solenoids. Specifications 398,017, 423,744, and 441,077, [all in Group XXX], are referred to.
Patent GB-564458-A (GB)
Title: A new or improved method of and means for obtaining the effect of shot-blasting
IPC: B24C1/10
Filed: 1943-06-09
Abstract: 564,458. Sand blast. WILLFORD & CO., Ltd., and ONIONS, J. W. June 9, 1943, No. 9244. [Class 60] [Also in Group XXII] Springs or other articles are shotblasted by moving them through a stream of shot falling by gravity or projected by known means. The springs 6, of which one only is shown, may be mounted on flat faces 5 of a wheel 2 rotated at high speed in a casing 3 to which shot are admitted at a regulated rate by a funnel 4 and adjustable flap 8. The rebound may be used to augment the action by arranging a rubberfaced deflector 15 to cause the shot to strike the articles again. The casing has a removable cover 13, for attaching the articles and an outlet 14 for the used shot.
Patent GB-809915-A (GB)
Title: Improvements in or relating to vacuum-tight metal to ceramic joints
IPC: H01J5/26
Filed: 1957-03-21
Abstract: 809,915. Soldering. TELEFUNKEN G.m.b.H. March 21, 1957 [April 18, 1956], No. 9291/57. Drawings to Specification. Class 83 (4). [Also in Group XXXVI] Ceramic and metallic members of substantially different coefficients of thermal expansion are sealed by interposing an intermediate metallic member having such thickness and expansion coefficient that the combination of the two metal members presents approximately the same expansion properties as the ceramic member at the ceramic/metallic surface. A butt joint between an aluminium oxide ceramic material and an iron member 0.6 millimetres thick may be effected by using an intermediate molybdenum foil 0.07 millimetres thick the foil being soldered to the ceramic by titaniumcopper-silver solder and to the iron by coppernickel solder. A joint between a steatite ceramic component and an iron-nickel-cobalt alloy having a marked inflection in its expansion characteristic using an intermediate molybdenum foil is also described. The metal member may be coated with a metal of high conductivity for high frequency applications.
Patent GB-567656-A (GB)
Title: Improved device for locking the clutch operating pedal of an agricultural tractor
IPC: G05G5/06
Filed: 1943-06-10
Abstract: 567,656. Controlling tractors. COLLINGHAM, J., and KEEP, G. E. June 10, 1943, No. 9318. [Class 79 (v)] The clutch pedal of a tractor may be locked in the " clutch disengaged " or depressed position by means of a vertical handoperated rod or shaft A mounted to rotate on its own axis in the foot-plate F and provided with an arm or catch J adapted, when the rod is rotated by its handle B, to engage over the top of the pedal (not shown) when the latter is in its depressed position. In the construction shown the lower end of the rod is screwed and is passed through any suitable one of a number of holes in the foot-plate and also through upper and lower bearing plates D, E bolted to the foot-plate at I, nuts G being provided for adjusting the height of the handle and the tightness of the bearing.
Patent GB-876487-A (GB)
Title: Preparation of acetonedicarboxylic acid and esters thereof
Inventor: BAULEY ABRAHAM
IPC: C07C59/347
Filed: 1958-03-24
Abstract: Acetonedicarboxylic acid and C1-4 alkyl esters thereof are prepared by adding citric acid to over 95% concentrated sulphuric acid, without stirring, at a temperature from about 40 to about 65 DEG C., gradually adding oleum or sulphur trioxide to the reaction mixture, with stirring and maintaining the mixture in the aforesaid temperature range, the reactants being employed in amounts sufficient to react with substantially all of the water produced, and continuing the reaction until substantial amounts of acetonedicarboxylic acid are produced; if an ester is required a dry alkanol is added to the resulting mixture, preferably at 25-45 DEG C.  The acid may be isolated by rapidly cooling the reaction mixture to about 0 DEG C. and then rapidly adding cold water or ice without causing the temperature to rise above about 10 DEG C.  The ester may be isolated by quenching the reaction mixture in water, e.g. below 20 DEG C., preferably at a pH of about 1.5 to 6 (a weak alkali such as ammonia may be used to control the pH), and extracting with an organic solvent, e.g. benzene.
Patent GB-552987-A (GB)
Title: Improvements in and relating to sulphur compounds
IPC: C01B21/086
Filed: 1941-07-25
Abstract: 552,987. Sulphur nitride. ARNOLD, M. H. M., PERRY. W. E., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. July 25, 1941, No. 9457. [Class 1 (ii)] [Also in Group VI] In the process of obtaining sulphur nitride by reacting ammonia with chlorides of sulphur dissolved in an organic liquid such as is described in Specification 544,577, sulphur nitride is added initially to the solution in order to prevent the reaction from proceeding too violently. The added sulphur nitride may be obtained from a previous reaction and is added in the proportion of 2 to 4 per cent. of the sulphur chloride. Gypsum, chalk other inert fillers may be added to the product for use as a vermin destroying composition.