baber/WOPTO huggingface dataset:
Patent GB-1131591-A (GB)
Title: Label folding machine
Inventor: ROWLEY JACK
IPC: B65H45/101
Filed: 1966-06-07
Abstract: 1,131,591. Stacking labels. BERISFORDS Ltd. 7 June, 1967 [7 June, 1966], No. 25218/66. Headings B8C and B8F, [Also in Division B5] In a machine for " mitre "-folding labels (see Division B5), a folded label is removed from a folding and pressing station 32 by a take-off mechanism 33 comprising a gripper 148, Figs. 1 and 12, having a jaw 164 normally closed by a spring 165 and mounted on an arm 149 which is swung upwards to the station 32. Strips 107 of a label support are displaced and the gripper 148 closes on to the folded label and the gripper and label together move towards a magazine 166 through arcuate guides 145. Rods between presser blocks 120 and the guides 145 ensure that the ends of the folded label do not sag out of register with the guides 145. The gripper 148 releases the label at the entrance to the magazine 166 and continues to move downwardly to clear this entrance so that the label is deposited on strips 167. Pusher plates 188 are rapidly reciprocated to push the label between serrated strips 170, 171 so that it is held as one of a horizontal stack.
Patent GB-899184-A (GB)
Title: Measuring equipment
IPC: G01R19/22
Filed: 1959-07-23
Abstract: 899,184. Peak voltage measuring. HAGAN CHEMICALS & CONTROLS Inc. July 23, 1959 [March 10, 1959], No. 25267/59. Class 37. In equipment for providing a D.C. output signal proportional to the peak value of an A.C. input signal, the input signal is fed from terminal 11 to differential amplifier 17 and thence to differential amplifier 28, the output signal developed across resistors 29, 31 is fed to amplifier 36 and the output therefrom is fed to control grids 51, 52 of cathode follower 54. The signal at the output 55 of the cathode follower is fed back to grid 16 of amplifier 17. During operation of the equipment, relay 59 is energized whereby diode 67 is shunted across resistor 57, the impedance of the diode varying inversely with the current flow through it. Thus, as the input to terminal 11 varies, impedance of diode 67 varies inversely, and hence the gain of the amplifier network 17, 28, 36, 54 decreases with increase in input signal. Since diode 67 has a threshold value of about ¢ volt for conduction to occur, as soon as the input to terminal 11 is in a positive direction, there is an output from the amplifier network in excess of - ¢ volt, and the gain of the network is reduced to hold this output to approximately - ¢ volt. When the input signal is in a negative direction, the output at terminal 55 is in a positive direction, diode 67 will not conduct, and current will flow via diode 69 to junction 72. The resistors 68, 73 are connected between - 300 volts and terminal 55. With the above-described circuitry, when the input at terminal 11 is positive and sufficient to provide at least - ¢ volt at terminal 55, diode 67 will conduct; and when the input is negative and sufficient to provide 60.6 volts at terminal 55, diode 69 will conduct; in both cases controlling the gain of the amplifier chain. At junction 81, there will be a negative and positive signal; and for an input signal at terminal 11 having peaks sufficient to produce 60.6 volts and - ¢ volt, respectively, at terminal 55, the signal at 81 will be essentially a pulsating direct current. This D.C. is smoothed and amplified in the network Y of the Figure to provide the required D.C. output signal from the equipment.
Patent GB-205494-A (GB)
Title: Improved method of hardening the surfaces of fibrous materials, such as cardboard and the like
IPC: C08L1/02
Filed: 1923-10-10
Abstract: 205,494. Christoph & Unmack Akt.- Ges., (Assignees of Fries, E.). Oct. 10, 1922, [Convention date.]. Boards, such as cardboard, are hardened and rendered suitable as a substitute for slabs of wood or stone by treatment in a bath of twice boiled linseed oil varnish, under pressure. The saturated sheets are dried in the air and then glued together, producing slabs suitable for the surfaces of the walls and ceilings of barracks and like buildings.
Patent GB-280341-A (GB)
Title: An improved device for preventing smoke, and securing economy of fuel, in tubular boiler furnaces
IPC: F23M9/00
Filed: 1926-10-12
Abstract: 280,341. Wilkinson, H. Oct. 12, 1926. Smoke, consuming.-In a boiler furnace the smoke from a fresh charge of coal is caused to pass down through the fuel on the grate by means of a rotatable disc B provided with an aperture C which, by rotating the disc, may be made to coincide with the space above or below the fire bridge. The disc is rotated by gearing D, E and the space around its periphery is closed by refractory ring A.
Patent GB-338222-A (GB)
Title: Improvements in spring motors
IPC: F03G1/00
Filed: 1929-08-20
Abstract: 338,222. Adams, A. J. Ang. 20, 1929. Spring and weight power-storing mechanism.- Power from a wave motor or other prime mover is transmitted through several spiral springs 19 to a revoluble casing which is attached to friction bands 28 by a bolt 17 and drives a sprocket wheel 26 which is loosely mounted on a shaft 5. The friction bands may be adjusted on their drums 27 by tension bolts 30. To prevent overwinding of the springs a trip finger 37 passes through a slot 38 in the casing and is gripped between the outer two spring convolutions. Inward movement of these convolutions moves a pivoted lever 35 and releases the friction belt from its drum. Retrograde movement of the shaft 5 is prevented by a ratchet wheel 41 and a pawl 42.
Patent GB-1532618-A (GB)
Title: Apparatus for connecting to a circuit board
IPC: G01R1/073
Filed: 1977-06-17
Abstract: 1532618 Test apparatus SIEMENS AG 17 June 1977 [24 June 1976] 25350/77 Heading H2E  An apparatus for effecting temporary connections, to a circuit board 10 for example, comprises a support for the board (13, Fig. 2, not shown), a plurality of movable electrical contact elements 5, a device 19 for moving the elements 5 individually to desired positions and a means for producing relative movement between support (13) and contacts 5 for effecting the connections.  The contacts 5 are mounted on rails 4 slidable in blocks 3 themselves rotatably mounted. Device 19 is mounted on a carriage 33 on a first set of rails 29 that are mounted on a second carriage 28 on a second set of rails 24, the sets of rails being at right angles, movement being produced by motors 31, 26 rotating screws 32, 25 so that the device 19 can be moved to a designated situation defined by rectangular co-ordinates. A plunger in 19 extends to engage a contact 5. To make electrical contact the circuit board support is lowered on to the contact points.
Patent GB-735581-A (GB)
Title: Improvements in air cleaners and silencers for internal combustion engines
IPC: F02M35/14
Filed: 1952-10-10
Abstract: 735,581. Silencing gaseous currents; spray carburetters. GENERAL MOTORS CORPORATION. Oct. 10, 1952 [Nov. 10, 1951], No. 25385/52. Classes 7(2) and 7(3). [Also in Group XXVIII] A tube 12 forming a carburetter air inlet passage mounts coaxial outer and inner casings 18, 17 containing between them an annular air cleaner 10 and an annular resonator silencer 11, the inner casing 17 containing the carburetter float chamber 51. Air enters the cleaner 10 through a passage 29 and an oil sump 22 wherein it is exposed to oil which it constantly circulates around a perforated baffle 40, radial fins 42 assisting axial entry. From the cleaner 10 the air passes to the tube 12 between radial fins 48, past the mouth of a " hiss-suppressing " auxiliary silencer 50<SP>1</SP>, along longitudinal passages 66, formed between a cylindrical wall 60 and a corrugated wall 65, and past the mouth of a passage 61 communicating with the silencer 11 via holes in the casing 17. The whole assembly is retained to the tube 12 by a wing nut 59 screwing on a stud projecting from the float chamber 51 and bearing on a loose cover 44 lined with felt &c. 49. In Fig. 3 (not shown), the resonator silencer extends upwardly around the air cleaner which is now fed, via an oil sump as before, from a chamber beneath it which receives air via a radial tube through the silencer and surrounded for part of its length by an annular passage connecting the silencer to the chamber, the auxiliary silencer and longitudinal passages being dispensed with.
Patent GB-482114-A (GB)
Title: Improvements in or relating to radio antenna systems
IPC: H01Q9/26
Filed: 1937-09-18
Abstract: 482,114. Aerials. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Sept. 18, 1937, No. 25392. Convention date, Oct. 8, 1936. [Class 40 (v)] A short-wave aerial having sharply-directional properties consists of two parallel openended wires 7, 8 having a length of from 0À4 to 0À5 #, and bent into almost a complete circle, the space between the open ends being of the order 0À01 to 0À02 #, and the separation between the two wires being of the same order. The maximum directivity is in the plane of the two wires, away from their open ends. The two wires 9, 10 of the feed-line are connected to the two ends, as shown in Fig. 2, or intermediately as shown in Fig. 5. Instead of taking the feed-lines towards the centre of the circle, they may extend outwards and away from it, Fig. 4 (not shown). Fig. 6 shows a method of mounting the aerial so that it can be oriented in three dimensions.
Patent GB-532570-A (GB)
Title: An improved device for cutting hedges and the like
IPC: A01G3/047
Filed: 1939-09-08
Abstract: 532,570. Hedge clippers. TURNER, J. Sept. 8, 1939, No. 25394. [Class 131] The movable blade D of a hedge cutter is reciprocated relatively to the fixed blade A by means of a lever G pivoted to the frame B and oscillated by means of a rotary cam H which may be driven by an electric motor, flexible shaft, manually &c. The cam H may have various forms and be driven through reduction gearing. The teeth of the cutter blades may be rectangular, tapered or provided with concave cutting edges.
Patent GB-480654-A (GB)
Title: Protecting device on peeling knives and the like
IPC: A47J17/02
Filed: 1937-09-20
Abstract: 480,654. Knives. STENVERS, F. Sept. 20, 1937, No. 25442. Convention date, July 30. [Class 30] A protector for use in paring fruit comprises a dished disc a fitted on the blade between the handle and a stop f. A rubber rest h for the thumb may be clamped on the blade, and /or the disc a may be formed with a tongue i for the same purpose. A modified form of thumb rest comprises a sheet-metal attachment tripod-like in end view.
Patent GB-349856-A (GB)
IPC: F01D13/00
Filed: 1930-08-26
Abstract: 349,856. Turbo generators. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Doran, J. H. ; 8, Oneida Street, Schenectady, New York, U.S.A.) Aug. 26, 1930, No. 25455. Convention date, Aug. 26, 1929. [Class 110 (iii).] In a turbo-generator plant in which the H.P. turbine 15 and the L.P. turbine 3 drive separate generators, the former set being mounted above the L.P. set, the supporting structure of the H.P. set is arranged to allow differential heat expansions between the H.P. turbine casing 15 and the generator casing 19 without materially altering the shaft alignment. An arch 13, made in one or two parts, bolted to the L.P. casing and supports a bearing block 14 in brackets 18. The H.P. casing is provided with support arms 15 which are seated in openings in the block 14 and fixed by a cross-key 17 which permits the casing to expand and contract without restraint. Brackets 18 allow longitudinal movement of the bearing block 14. Beams 23 on each side of the H.P. unit are fixed to the arch 13, and are free to slide in brackets 24 at the generator end. The exhaust end of the H.P. turbine has a bearing block 27 which is located by a key 21 to each beam 23 and a longitudinal key in the vertical plane of the shaft. Beams 23 are connected by a cross beam 26. The generator shaft has a bearing 28 which is supported by the generator casing. Cooling air may be circulated through the arch 13 and about the beams 23. Steam exhausted from the H.P. turbine through a pipe 12 enters the L.P. turbine at a pipe 4 and divides to the two systems contained in casings 5, 6.
Patent GB-806526-A (GB)
Title: Improvements relating to electric arc stud welding
Inventor: REED HAROLD LESLIE
IPC: B23K9/20
Filed: 1955-09-06
Abstract: 806,526. Welding by pressure. CROMPTON PARKINSON Ltd. Aug. 28, 1956 [Sept. 6, 1955], No. 25542/55. Class 83 (4). An electric-arc stud. welding or pin-brazing tool comprises a rotary magazine carrying radially disposed studs or pins in resilient clips and which is rotated step-by-step to successively register the studs or pins with a chuck which pick: them up by relative movement between chuck and magazine prior to welding. A rod 1, Fig. 1, slidably mounted in an insulated block 6 anc having a chuck 3 witl a stud recess 4 receives the studs 40 and fer rules 42 carried in clips 41 and 43, respec tively, on a rotary magazine 7 as they are brought into regis ter. The magazine is detachably mounted on a boss 53 and retained by a spring-clip 54. The stamped-out stiffening ribs 46 extend radially from each clip position and co-operate with a spring-loaded plunger 47 to register the studs under recess 4. A stud is located in the chuck by downward motion, against the compression of a spring 10, of the rods 1 and 2, carried on the main welding tool which is not shown. The rod 1 is then retracted by a solenoid, thus carrying the stud back to strike the welding arc and is subsequently thrust downward to press the stud against surface 21 again to effect the weld. On lifting the tool, the clips 41, 43 slide freely from the welded stud and the spring-loaded legs 15 and 16 extend slightly to operate a spring-loaded pawl 29 carried on a pivoted arm 27 connected to the leg 15 at a pivot 26. The pawl thereby rotates the ratchet drive 33 by one step, bringing a further stud into register under the chuck. The magazine may alternatively be rotated by hand. In a modification the magazine may be of an expendable material such as cardboard, the drive and register device then being carried on a permanent rotatable hub. Specifications 565,633, 580,702, 601,459, 637,032 and 769,596 are referred to.
Patent GB-1041976-A (GB)
Title: Improvements in or relating to a high speed electrical switch having a push rod assembly
Inventor: BEARDOW GEORGE MILTON
IPC: H01H3/62
Filed: 1964-06-19
Abstract: 1,041,976. Make-and-break switches, mechanical. VITRAMON Inc. June 19, 1964, No. 25582/64. Heading H2B. An interrupter switch of the type described in Specification 975,830, is provided with a push-rod of fibrous cellulose material, for example, bamboo, in which all the fibres are substantially straight and extend parallel to the axis of the rod, thereby obtaining axial and transverse strength combined with selflubrication and the capability of being impregnated with resins or lubricants.
Patent GB-251860-A (GB)
Title: Surgical needle and suture assembly and method of and means for making the same
IPC: A61B17/06
Filed: 1925-10-14
Abstract: 251,860. Morton, H. D., and Parker, M. Oct. 14, 1925. Heating by electricity.-To effect the expansion of a catgut suture 4 in a recess in a surgical needle the needle with the suture in position is exposed to the heating effect of an electric current for example by means of the apparatus shown in Fig. 4. In this the thin walls of the recess 2 are heated by a current passed for a determined interval of time between a contact lever 17 and a block 5. The block 5 is connected through a variable resistance 7 to a transformer 8-10 which is also connected to a contact 12 carried by a rod 14 reciprocated in a bearing 22 by a rotating cam 24 against the pressure of a spring 21 so as to make contact between contact pieces 12, 15 and also to move the lever into engagement with the needle. The time of contact is controlled by regulating the speed of rotation of the cam and by employing cams of different contour.
Patent GB-844405-A (GB)
Title: Process for the production of vat dyestuff pigments in a finely divided form
IPC: C09B67/00
Filed: 1957-08-14
Abstract: Soft-grained finely-divided vat dyestuff pigments are made by grinding the moist or dry crude pigment with at least one part by weight of a water-soluble organic solvent per one part by weight of pigment until the pigment has reached the desired state of fine sub-division and then removing the solvent until the pigment has attained a powdery condition.  When a moist pigment is used the water may be removed before grinding by washing out with the water-soluble solvent or by azeotroping.  A dispersing agent may be present during grinding.  Water-soluble organic solvents mentioned are alcohols, ketones, ethers, acids, amines, amides and heterocyclic bases. Examples are given.ALSO:Vat dyestuff pigments, which have been ground with a water-soluble organic solvent which is then removed, are incorporated into lacquers.  In an Example, (9), a chlorinated isodibenzanthrone pigment which has been so ground is dispersed in a linseed oil varnish by trituration.
Patent GB-364108-A (GB)
Title: Improvements in or relating to knitting machines
IPC: D04B9/26
Filed: 1930-08-28
Abstract: 364,108. knitting- machines. HOLMES, H. H., ROBINSON, R. H., and WILDT & CO., Ltd., Adelaide Works, Le:cester. Aug. 28, 1930, Nos. 25769/30, 3091/31, and 6336/31. [Class 74 (ii).] Relates to machines wherein warp threads are knitted in addition to a ground thread or threads. The warp threadfeeder 22 has a thread-guiding portion 24 lying substantially parallel with its as sociated needle 31, and is deflected by a cam 30 so that during def ection it moves substantially parallel to itself. The cam 30 moves relatively to the feeders 22 in the direction of knitting, e.g. in a stationary needle - cylinder machine, the cam 30 rotates with the knitting cams. The thread-feeders 22 are preferably of the form shown in Fig. 7, each feeder having the thread-guiding portion 24 disposed at right-angles to a butted portion 25 received in the feeder-heac.. The part 25 is preferably given a permanent set so that it engages the walls of the tricks in the feec.er-head. The warp thread 40 is preferably supplied from a reel-type bobbin 88 of short axial dimension, having a friction pad. 94, and a guiding eye 89 formed from bent wire. The feeder-head may be carried by an adjustable support comprising a vertical bracket 43 adjustable in height, and a radial arm 44 which is swingingly supported thereon and which carries the feederhead. The bracket 43 is preferably of telescopic form, and the driving means for the thread-feeder actuating cams are undisturbed by movement of the bracket 43 or arm 44. Means are also provided for adjusting the head about its axis, and for locking it in adjusted position. Thread-tensioning means 39, 93, and devices 34, 36 for drawing off a supply of warp thread 40, as described in Specification 364,039, are provided. The invention may be applied to flat machines. Specifications 327,958, 327,987, 327,988, and 328,026, [all in Class 74 (ii), Knitting &c.], also are referred to.
Patent GB-997893-A (GB)
Title: Frequency-shift keying arrangement
IPC: H04L27/12
Filed: 1963-06-28
Abstract: 997,893. Frequency modulation. STANDARD TELEPHONES & CABLES Ltd. June 28, 1963 [July 2, 1962], No. 25781/63. Headings H3R and H4P. In F.S.K. telegraphy a capacitor is shunted across the tuned circuit of an oscillator, to shift its frequency, by a transistor switch with emitter/collector conduction path in series with the capacitor. In Fig. 3, a transistor T is normally biased to conduct when key Ta is open, but when the key is closed the base and emitter both have earth potential and the transistor is blocked to render ineffective the capacitor (not shown) in its collector lead connected with the oscillator tuned circuit. Network L 1 , C 3 , C 4  eliminates keying transients by converting the square wave keying voltage into trapezoidal form. Rectifier G 1  and resistors R 1 , R 2 , R 3  ensure that the impedance presented to the input end of the network is the same, provided R 1  = R 2 , whether the key Ta is up or down.
Patent GB-616122-A (GB)
Title: Improvements relating to the treatment of boiler feed water
IPC: C02F5/08
Filed: 1946-08-28
Abstract: 616,122. Treating boiler feed water. AUXILIAIRE DES CHEMINS DE FER ET DE L'INDUSTRIE., and ARMAND, L. F. Aug. 28, 1946, No. 25794. Convention date, May 7 1942. [Class 123(i)] To prevent incrustration and priming, boiler feed water is treated by adding per cubic metre of water:-2 grammes of tanning extracts (60 per cent tannin) 10 grammes of alkali metal (e.g. sodium) carbonate per degree of permanent hardness, and 1 gramme of caustic alkali (NaOH) per degree of total hardness. The water is then drawn off from the boiler in successive amounts in order to remove mud and limit the concentration of soluble salts in the boiler water.
Patent GB-615318-A (GB)
Title: Improvements in or relating to low drag airfoils
IPC: B64C27/467
Filed: 1945-10-04
Abstract: 615,318. Aerofoils. MARTIN CO., G. L. Oct. 4, 1945, No. 25801. Convention date, June 7, 1944. Drawings to Specification. [Class 4] The Specification gives the mathematical analysis necessary to determine the aerofoil profile required for an aircraft of specified performance characteristics, The required pressure distribution is determined and from this is obtained the required velocity distribution over the aerofoil and the angle of attack for optimum lift coefficient. The values of certain parameters necessary for solving the following equations for the rectangular coordinates of the profile are then calculated. X=2 cosh # cos # Y=2 sinh # cos # In these equations # varies from #/16-1.94 # and # is expressed as a series in cos #-cos 12 0 and sin #-sin 12 #. Various equations for # are given in the description and claims. The nose portion of the aerofoil is completed by a smooth, faired curve having a radius of curvature equal to 2.298 per cent chord.
Patent GB-155689-A (GB)
Title: Improvements in and in the manufacture of grid resistances
IPC: H01C1/084
Filed: 1919-10-21
Abstract: 155,689. Satchwell, L. Oct. 21, 1919. Resistances, grid. Thin stamped strips are bent, shaped, or connected to form a zigzag grid, and assembled into a block with interposed insulating-spacers, which extend along the length of the strip, but are of less width, so that the strip is to a large extent exposed to the air. In one arrangement, Fig. 2, the strip 3, which may be perforated or slotted along the centre, as shown in Fig. 5, to confine the current to the edges, is bent into loops, which are assembled with the spacers 5 on insulated bolts 6 having spring washers 7. Transverse notches 2 may be provided to facilitate bending. Connexion is made by means of narrow copper strips 8. In another arrangement, Fig. 6, a number of stampings 10 are connected in series by washers 14, the spacers 13 being made shorter than the stampings. In another arrangement, Fig. 7. a number of zigzag strips 15 are built upon insulated steel plates 16, adjacent-strips being spaced by U-shaped insulating-washers 18.
Patent GB-337109-A (GB)
Title: Improvements in the manufacture and production of phosphoric acid and hydrogen
IPC: C01B25/24
Filed: 1929-08-24
Abstract: 337,109. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Aug. 24, 1929. Hydrogen and oxyacids of phosphorus are produced by heating phosphorus or phosphorous acids of a lower stage of oxidation than phosphoric acid with anhydrous phosphoric acid under pressure. Specification 328,711 is referred to.