baber/WOPTO huggingface dataset:
Patent GB-613526-A (GB)
Title: Carrier current transmission system
IPC: H03C1/62
Filed: 1945-11-22
Abstract: 613,526. Modulating systems. PATELHOLD PATENTVERWERTUNGS- & ELEKTROHOLDING AKT.-GES. Nov. 22, 1945, No. 31527. Convention date, Nov. 22, 1944. [Glass 40 (v)] In a modulated carrier wave system, the carrier and the side-bands are so manipulated that from zero signal to a critical signal level the side-bands rise in amplitude. up to or near the carrier amplitude, and beyond the critical signal level the carrier amplitude decreases and the side-band amplitude either remains constant or rises only slightly as the signal level rises. At the receiver an inverse process is effected. The system enables the transmitter to operate with maximum power output at the most frequently occurring medium levels of signal amplitude. Fig. 1 shows a transmitter, in which the carrier source G and the signal source L feed a normal modulator M. The modulated wave passes to a carrier reducer T which may be fed in cotmterphase from the source G or may comprise a carrier-reducing filter. The side-band output from T thus exceeds the carrier output for all signal levels beyond a critical level, and the joint output passes to a transmission regulator R. This is regulated by a control voltage derived from a comparison device S which compares the signal level from L with the carrier level from T, but is ineffective so long as the signal is below the critical level. Above that level the control voltage operates to reduce the output from the regulator R approximately in proportion to the excess. In this way, the carrier input to the final amplifier V falls with increasing signal level, whilst the side-bands are kept at a constant amplitude, or increase only slightly as the signal level rises. At the receiver, Fig. 3, the received waves pass through an amplifier V1 to a regulator R and thence to a demodulator D, low-frequency amplifier V2 and speaker L. The output from V1 is combined in a modulator M with the output of a local carrier source G, and the output of the modulator comprises a D.C. voltage proportional to the received carrier and an audio-voltage due to the side-bands. The latter is eliminated by a filter T, and the former applied as a control voltage to the regulator R. When the signal is below the critical level, the received carrier is constant and the regulator R is unaffected. Above the critical level, the reduction in the received carrier causes the transmission factor of the regulator R to rise proportionally, so that the side-bands fed to the demodulator D also rise. Carriers supplied to the demodulator from the source G give a normal signal output to the amplifier V2 and speaker L. The source G is synchronized with the incoming wave by a device F which compares the frequency and phase of the two inputs, and applies a control voltage to the generator G. The level of the carrier at the output of the reducer T, Fig. 1, may be somewhat higher or lower than the side-band output at the critical signal level.
Patent GB-663025-A (GB)
Title: Improvements connected with the protractor heads of drawing machines
IPC: B43L13/08
Filed: 1949-12-09
Abstract: 663,025. Draughting-machines. SMITH, J. W., and GRAF, V. Dec. 9, 1949, No. 31626/49. Class 97 (iii). In a protractor head for parallel arm motion drawing machines in which a holder 13 for rules 14, a plate 10 provided with an index 15 or a scale and a knob 11 are mounted together for rotation relative to a non-rotatable base-plate 3 carried by the parallel arms 1 of the machine, the base-plate 3 carries a scale or index member 5 which is adjustable thereon and co-operates with the index 15, a notched disc 9 normally fixed relative to the scale member 5 and baseplate 3 located beneath the plate 10 being selectively engaged by a lever-operated pawl 16 carried by plate 10. The lever 17 loaded by spring 25 is mounted flat against the upper side of plate 10, and has a peg 21 extending through an opening 22 in the plate 10 to engage the pawl 16, the opening 22 being covered by the lever 17. The disc 9 is notched to correspond with the commonly used angles and lies in a recess in scale member 5, being rigid therewith. The plate 10 covers the recess. A locking lever 27 pivoted at 28 has a shoulder 30 adapted to engage shoulder 31 on lever 17 to maintain the pawl 16 out of contact with disc 9. On'pressing the thumb-piece 18, an arm 33 on the head of lever 17 disengages the locking lever. The pawl 16 and lever 17 are pivoted on a common pin 19. Adjustable stops 35 are provided on the scale member 5 as described in Specification 663,024.
Patent GB-744372-A (GB)
Title: Improvements relating to continuous pressure filters
IPC: B01D33/00
Filed: 1952-12-15
Abstract: 744,372. Filters. MOSS, G. March 15, 1954 [Dec. 15, 1952], No. 31719/52. Class 46. [Also in Group XXIX] In a continuous pressure filter comprising a pressuretight casing 10 containing a filtering drum 16 from the wall of which sludge is continuously removed, continuously operating means are provided to feed the sludge in the lower part 23 of the.casing 10 to a variable outlet valve 36, the extent of opening of which is controlled by means operated by the resistance offered by the sludge to the feeding means. Slurry under pressure is fed to an inlet 12 and sludge is continuously scraped from a cylindrical porous filter drum 16 by a stationary scraper. The drum 16 is mounted on end plates 14 connected by the rods 15 and having journals 17 rotating in bearings 18. The filtrate passes through a perforated tube 19 to an outlet 20. The drum 16 is driven through gearing which includes gears 22, 27 by a constant speed electric motor 28. This motor also drives a screw 24 one end of which co-operates with a casing extension 30 to form a screw pump. The valve 36 is formed as a hollow annular member of resilient material such as natural or synthetic rubber or resilient plastic and co-operates with a plain conical tip 31 of the screw 24. Pressure fluid is supplied to the interior of the annular valve 36 through a pipe 37 from a controller 39 responsive to the action of a torque meter 38. As shown in Fig. 3, the casing of the motor 28 is bolted to a rotatable mounting and under torque load compresses a spring 42 so that a plunger valve 40 in the circulating system of a pump 44 is opened to relieve the pressure in the valve 36. The system also includes a reservoir 43, a relief valve 46, and restrictors 45 between which the pipe 37 branches off to the annular valve 36. In a modification, the resilient annular valve 36 is of U-section and co-operates with the face of a disc at the outer end of the screw 24.
Patent GB-1460980-A (GB)
Title: 3-substituted diphenylhydantoins
IPC: C07D233/72
Filed: 1974-07-17
Abstract: 1460980 3-Substituted diphenylhydantoins MILES LABORATORIES Inc 17 July 1974 [20 July 1973] 31738/74 Heading C2C Novel 3-substituted diphenylhydantoins having the general formula wherein R<SP>1</SP> and R<SP>2</SP> are hydrogen, halogen, (C 1 -C 3 )alkyl, (C 1 -C 3 )alkoxy, amino or nitro; R<SP>3</SP> is methylene, ethylene, trimethylene, tetramethylene, 2-hydroxytrimethylene or 2-hydroxytetramethylene and R<SP>4</SP> is 4-phenyl-1- piperidyl, 4-hydroxy-4-phenyl-1-piperidyl, 4- phenyl 1,2,3,6 - tetrahydropyridyl, 4 - phenyl- 1 - piperazinyl, (C 1 -C 4 )alkylamino or di- (C 1 -C 4 )alkylamino, or a pharmacologically acceptable acid addition salt thereof, are prepared by either (a) reacting a compound of the formula with a compound of the formula J-R<SP>3</SP>-R<SP>4</SP> wherein J is a chlorine or bromine atom, in the presence of a base, or (b) reacting a urea derivative of the formula R<SP>4</SP>.R<SP>3</SP>.NH.CO.NH 2  with a  compound of the formula The novel compounds are useful in the treatment of cardiac arrhythmia.
Patent GB-1347346-A (GB)
Title: Process for conditioning additives and additives conditioned by  the process
IPC: C08K9/08
Filed: 1971-07-06
Abstract: 1347346 Master batches REAGENS SpAINDUSTRIA CHIMICA 6 July 1971 [6 July 1970] 31750/71 Heading C3P Additives which are to be incorporated into a thermoplastic resin are mixed in powder form with the thermoplastic resin in granular form while heating until the additive is absorbed but without coalescing of the resin particles to obtain free flowing granular master batches the ratio of additive to resin being 1 : 5 to 5 : 1. Examples describe forming mixes of PVC with stabilizers, (1) dibasic lead phosphite and (2) dibasic lead phosphite, dibasic lead stearate and calcium stearate. Other additives may also be introduced.
Patent GB-1275674-A (GB)
Title: Method and apparatus for producing packs of bags, pouches, sacks and the like articles
Inventor: HONSEL KARL-HEINZ
IPC: B65B25/14
Filed: 1969-06-25
Abstract: 1275674 Packaging bags K H HONSEL 25 June 1969 32076/69 Heading B8 Bags, pouches, sacks &c. are packaged by first arranging them in an overlapping relationship in the form of a continuous stream 22 which is then wound to form a reel. The bags 1, formed and severed from a web material are fed, one by one, to a folding and gluing unit comprising a gripping cylinder 2, a folding cylinder 5, a glue bar 7, a doctor roller 4 and a glue box 3, and the completed bags are fed to a feed delivery system comprising a belt 8 over rollers 9-11, a belt 12 over rollers 9, 13-17; and a belt 18 over rollers 16, 19-21. The stream 22 of bags is formed by attaching each bag to the following one by dabs of adhesive; and the roller 21 tightly winds the string 22, together with a continuous strip 26 of paper or plastics material to a cardboard tube 30 mounted on a weight-loaded rocking lever 27, to form a reel 31. When a pre-determined number of bags have been wound on to the reel 31, the drive of the feed delivery system is automatically switched off and a suction device 34 operates to hold the further incoming bags from being fed to the reel, and a motor 32 winds only the strip 36 on the reel at a faster speed. An operator then swings the finished reel 31 away and connects another winding station 31a for preparing a next reel. The strip 26 may be wider than the bags to afford protection to the bag-edges. For very wide bags, two narrow strips 26, one at each edge portion of the bags, may be provided.
Patent GB-412840-A (GB)
Title: Container for electric accumulators
IPC: H01M50/126
Filed: 1933-11-17
Abstract: 412,840. Battery cases. BRITANNIA BATTERIES, Ltd., 233, Shaftesbury Avenue, London.-(Assignees of Accumulatoren-Fabrik Akt.-Ges. ; 3, Askanischer Platz, Berlin.) Nov. 17, 1933, No. 32091. Convention date, Nov. 28, 1932. Drawings to Specification. [Class 18.] An electric accumulator case of wood, &c. is lined with a metal layer in intimate contact with the inside of the case and a rubber layer superposed on the metal layer by spraying. The metal layer is, preferably, of lead and is also sprayed on. The metal layer or the entire lining may be of trough-like form and extend only part way up the side walls of the case, and the shortened portion may be countersunk into the walls. Alternatively, the lining is carried over the upper edge of the case and part way down the outside.
Patent GB-137052-A (GB)
Title: Improved means for preventing deposits and incrustations in evaporating apparatus
IPC: B01D1/12
Filed: 1919-12-22
Abstract: 137,052. Soc. d'Exploitation de Procedes Evaporatoires SystÞme Prache et Bouillon. Dec. 24, 1918, [Convention date]. Incrustation, preventing and removing. - In order to prevent incrustation on the heating-surfaces in evaporators, a powder such as sand or glass having a mechanical cleaning-action is added to the liquid under treatment, and the liquid with the powder in suspension is circulated through the evaporator. The evaporator consists of externally-heated tubes 1 with chambers 6, 7 at either end which are connected by circulation pipes 10, 11. A pump 12 circulates the liquid at a speed sufficient to keep the powder in suspension. Liquid is fed by an inlet 13, and is discharged by an overflow 14 which is formed with an inlet 18 of such size as to ensure that the outgoing liquid does not carry the powder with it as it flows upwards. The powder is introduced through a door 16. Steam is injected through inlets 19 to bring the powder into suspension after a stop.
Patent GB-731785-A (GB)
Title: Improvements in warping creels
IPC: D02H1/00
Filed: 1953-11-19
Abstract: 731,785. Creels. ETABLISSEMENTS CORNARD & CIE. Nov. 19, 1953 [Dec. 8, 1952], No. 32162/53. Class 142(1). A creel consists of short straight sections 6a, semi-circular sections 6b, and long straight sections 6c, extending alongside the warping machine 1.
Patent GB-1163560-A (GB)
Title: Improvements in rotary ball valves
Inventor: MARSHALL CYRIL
IPC: F16K5/06
Filed: 1967-07-14
Abstract: 1,163,560. Valves. GUEST & CHRIMES Ltd. 6 May, 1968 [14 July, 1967], No. 32370/67. Heading F2V. A rotary ball valve 6 is carried in the major housing part 2 and co-operates with the resilient lips of L-shaped seating rings 14 carried by mountings 16 slidable on spigots 13 in the part 2 and in a minor housing part 3. Drain or pressure relief plugs 20 are provided in the housing part 2. (For Figure see next column)
Patent GB-542760-A (GB)
Title: Improvements in speed governors for power engines
IPC: H02P23/00
Filed: 1939-12-21
Abstract: 542,760. Automatic control systems. AKTIEBOLAGET BOLINDER-MUNKTELL. Dec. 21, 1939, No. 32713. Convention date, Jan. 4. [Class 38 (iv)] A shaft 20 rotating in dependence on the speed of an engine rotates a soft iron ring 51 about a permanent magnet 50 carried by a shaft 52. The ring 51 is provided with a short-circuited winding which may be constituted by copper bars extending axially in conductive connection with non- magnetic end rings. The magnet and shaft are thus given a turning movement dependent on the speed, which is caused to act on a throttle valve 27 of the engine, either directly or indirectly against a spring 29. Reverse motion of the engine may be prevented by a second throttle valve 53 similarly actuated, or the shaft 52 may have lost motion connections with the valve 27 which respectively act on the valve when the motion is direct or reverse to move the valve to throttled position. The spring 29 may be replaced by a ring and magnet device similar to the parts 50, 51 adjustable by axial movement.
Patent GB-1497163-A (GB)
Title: Fastener
IPC: F16B15/08
Filed: 1975-08-06
Abstract: 1497163 Nails; washers HILTI AG 6 Aug 1975 [26 Aug 1974] 32782/75 Heading F2H A nail or pin to be driven in by an explosivepowered driving tool comprises a head 1 and a shank 2 with at least one guide washer 3 or 5 thereon, the or each washer having an outside diameter larger than the head 1 and at least two recesses 4 or 6 in its periphery, each recess having a width approximately equal to the shank diameter so that a plurality of similar nails or pins can be connected in succession to form a magazine structure by engagement of their shanks 2 in the recesses 4 or 6 of the washers on adjacent nails or pins. The recesses may have parallel sides or, as shown in Fig. 4, sides which converge in a radially outward direction for snap-engagement with a shank 2. The nails and washers may be arranged stepwise, as in Fig. 3, or in a wave-like pattern, Fig. 5, with axial interference fits between the washer pairs of adjacent nails. If the recesses 4 have parallel sides, the overlapping washers may be glued together. The nail head may have an external screw thread, or a transverse bore.
Patent GB-1182115-A (GB)
Title: Improvements relating to Automatic Test Equipment
Inventor: WAINWRIGHT CHARLES
IPC: G06F7/02
Filed: 1966-07-21
Abstract: 1,182,115. Comparators. BRITISH AIRCRAFT CORP. Ltd. 21 July, 1967 [21 July, 1966], No. 32878/66. Heading G4M. In test equipment, a binary number representing a measured value MV is compared with upper and lower tolerance limits UL, LL, the comparator comprising two multi-bit banks of stages C1-C20, and the outputs from the two banks are compared to check the operation of the comparator. Initially, comparison with UL takes place, an EQ output from a pair of stages e.g. C1a, C1b enabling the next lower pair of stages e.g. C2a. C2b until C20a, C20b produce an EQ output or a Hi or Lo output is obtained. Circuit 11 compares the Hi, Lo and EQ outputs and stops the comparison, if a discrepancy occurs. Circuits 3a, 3b take into account the polarities of MV and UL and produce a Go Hi output if UL is not exceeded, thereby setting 5a, 5b to the 0 state. A comparison with LL is then effected, circuits 3a 3b again taking polarities into account and producing a Go Lo output if MV is not less than LL. Gate 13 produces an output if gates 7a, 7b are enabled, otherwise an indication of which limit is violated is obtained from the NoGoHi or NoGoLo gate. Circuit 12 checks that there is no discrepancy in the settings of 5a, 5b and 6a, 6b. Each bit comparator C1-C20 includes bistable circuits storing corresponding bits of ML, UL and LL and gates effecting the comparisons, the output gates for the Hi, Lo and EQ outputs being enabled by an EQ and EQ input respectively from the preceding stage.
Patent GB-1433335-A (GB)
Title: Stenter frames
IPC: B41F17/00
Filed: 1972-07-13
Abstract: 1433335 Stenters CHAMPION ASSOCIATED WEAVERS Ltd 6 July 1973 [13 July 1972] 32883/72 Heading D1S A stentor frame, for use in a carpet printing apparatus, has two wings 6, 10 one wing 6 of which is biassed outwardly and is connected to a control arm 20 movement of which to either side of a rest or neutral position actuating one of two switches 34, 44 for a width control motor 36 of the frame, the actuation of the respective switch causing the motor 36 to move the wing 6 in a direction to increase or decrease the distance between the wings 6, 10 so that the arm 20 is returned to its neutral position either by the biassing means 30, if the tension in the carpet fabric 2 had increased above the desired limit, or by the tension in the fabric, if the tension had fallen below the desired limit. As shown, the fabric 2 is stretched between pins 4, 8 on movable belts carried by wings 6, 10 carrying sprockets 12, 11 engaging opposite screw threads on a shaft 14 connected to a bar 16 pivoted at 18 to the arm 20. The wing 10 is fixed. The arm 20 is connected to a fixed pivot 22 and is pivoted at 26 to a piston rod 28 of an air cylinder 30. Air pressure in the cylinder 30 urges the arm 20 clockwise about the pivot 22 and the wing 6 outwardly. The arm 20 is held in the neutral position shown when the tension in the fabric 2 reaches that of the air pressure. If the weft tension rises, the arm 20 pivots anticlockwise and a plate 32 thereon operates a switch 34 to drive the motor 36 to move the sprockets 11, 12 inwardly towards each other. The weft tension is reduced and the motor 36 is stopped when the arm 20 returns to the Fig. 1 position. If the weft tension falls, the arm 20 pivots clockwise and a plate 42 thereon closes a switch 44 to drive the motor 36 to move the sprockets 11, 12 outwardly. The tension is increased until the arm 20 returns to the Fig. 1 position and the motor 36 is stopped. To increase or decrease the normal tension in the fabric a valve (not shown) is adjusted to alter the pressure in the cylinder 30. A further switch (not shown) may be provided to prevent the wing 6 being moved too far outwardly if the carpet 'has not been engaged on either the pins 4 or 8.
Patent GB-322311-A (GB)
Title: Improved means for turning eggs in incubators, storage boxes and the like
IPC: A01K41/06
Filed: 1928-11-12
Abstract: 322,311. Winpenny, A. R. Nov. 12, 1928. Preserving eggs.-To facilitate the turning of eggs in storage boxes and the like they are supported in rotatable carriers comprised by two circular plates 11, 12 of metal, each plate being provided with a number of symmetrically arranged holes those in the one plate being large enough to accommodate the large end of an egg and those in the other being adapted to receive the small end of an egg. The plates have flanges 13 that rest on rollers 15 which may be rotated by hand or power. The eggs are assembled in the holes in the carrier plates, these being maintained in position by central bolts 14 or springs. In a modification the eggs are placed in holes in one disc forming the end plate of a cylinder. When they are in position the cylinder is filled with bran, sawdust or the like and a cover clamped on.
Patent GB-1308886-A (GB)
Title: Electrical fuse for projectiles
IPC: F42C13/04
Filed: 1971-07-14
Abstract: 1308886 Projectile fuzes PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 14 July 1971 [17 July 1970] 33056/71 Heading F3A [Also in Division H4] An electrical fuze for a projectile comprises a wire W which can be melted by applying a voltage across external contacts K and H, thereby eliminating a proximity fuze system and a selfdestruction system whilst maintaining an impact fuze system. With the wire intact all three systems are effective. The proximity fuze system comprises an oscillator OSC and an antenna coil L 1  for transmitting H.F. pulses to, and receiving a reflected signal back from, the target. The resulting Doppler signal initiates a thyristor T 1  which then causes a condenser C 1  to discharge through an igniter J. A transistor T 2 , in a high resistance state, enables the condenser C 1  to be permanently charged through a resistance R 1 . With the wire W melted, the oscillator is no longer earthed and is therefore inoperative, and the transistor T 2  becomes conductive and therefore prevents the condenser C 1  being charged. It is also possible to use other detectors in the proximity system, e.g. an infra-red detector. The impact fuze system comprises a contact A 1  which, when closed, permits a condenser C 2 , permanently charged through a resistance R 2 , to discharge through the igniter J or another igniter. A modified impact system (Fig. 2, not shown) includes two impact contacts coupled to coils. The selfdestruction system comprises a switch AD which is closed when the rotational speed of the projectile drops below a certain.speed or a timing device TP 1  for firing after a predetermined time. Alternatively a pulse generator TP 2  delivers a positive pulse to the thyristor after a certain time. The oscillator and charging circuits obtain voltage from a battery which is activated by the axial acceleration and rotation of the projectile.
Patent GB-330578-A (GB)
Abstract: 330,578. Gaze, H. C. March 11, 1929. Hard tennis courts.-The top porous layer of a hard court consists of 8 parts by volume of granulated cork and 1 part of tarry or resinous binder, and is laid about three eighths of an inch thick. The tarry binder may be a mixture of 10 parts of pitch to 1 part of tar, and the resinuous binder is preferably equal parts of boiled linseed oil and resin. The foundation layer consists of stony material coated with tar and pitch and laid hot on hard core or clinker. The top layer is smoothed with a hot iron and rolled, and may be sprayed with a green composition.