baber/WOPTO huggingface dataset:
Patent GB-1118260-A (GB)
Title: Infinitely variable friction drive
IPC: F16H15/50
Filed: 1966-10-04
Abstract: 1,118,260. Variable-speed epicyclic gear. ASAHI SEIKI KOGYO K.K. 4 Oct., 1966 [11 Nov., 1965], No. 44332/66. Heading F2D. A continuously variable-speed epicyclic friction gear, providing reduced forward through zero to reverse speeds, comprises coaxial input and output shafts 1, 2, planetary conical rollers 18 carried by the output shaft and frictionally engaging a conical sun 17 fast with the input shaft and an internal conical surface of a ring 21, and obliquely supported double coned rollers 11 which frictionally engage rings 10, 16, respectively drivingly connected to the input shaft and the ring 21, and are movable in the axial direction of the input and output shafts to vary the speed of the ring 16 and hence the output shaft. The rollers 11 have spindles 13 obliquely and rotatably supported on a mount 12 which is slidably keyed to a stationary cover F and axially movable by a rack-and-pinion 14, 15. The rings 10, 16 are respectively drivingly connected to the input shaft and the ring 21 through axially acting, torque-responsive, cam- and-ball, traction pressure loading devices 9, 22, the device 9 also including a spring S.
Patent GB-885552-A (GB)
Title: Improvements in and relating to box making machines
Inventor: SANDERS HORACE FREDERICK
IPC: B31B50/48
Filed: 1959-12-31
Abstract: 885,552. Machines for making boxes. BELL ENGINEERING (SLOUGH) Ltd. March 28, 1960 [Dec. 31, 1959], No. 44364/59. Class 18. A mechanically driven machine for making boxes from cardboard blanks comprises a folding box 1 and a plunger 2 reciprocated by means of a crank-wheel 5, Fig. 4, a rod 4 and linkage 6, 8. When a blank is in the correct folding position it displaces a bell-crank lever 22 connected by a link 23 to a second bell-crank lever 24, which then trips a clutch and so connects the wheel 5 to the drive, e.g. an electric motor, and starts the folding cycle. Link 6 is rigidly mounted on a rotatably journalled spindle 7 from which depends an arm carrying a roller 10. Thus when the link 6 is displaced by the wheel 5, the spindle 7 rotates and roller 10 displaces a quadrant 11 connected to one of two intermeshing gears 14, each of which is in mesh with pinions 16 mounted at one end of universally jointed spindle 17. During the initial depression of the blank by the plunger, two opposed side walls are erected. Folding arms 3 carried by the spindle 17 are then swung through 180 degrees and erect the end walls, which are twice the height of the side walls. Tongues on the side walls are bent to lie against the end walls and as the plunger starts its upward stroke, the upper parts of the end walls are turned in to overlap the tongues. Pivoted stops 20 holding the box in position are moved aside by a cam on the spindle, as the plunger rises, and the completed box drops into a tray or shoot.
Patent GB-948124-A (GB)
Title: Improvements in or relating to embossed materials
Inventor: MILLER PHILIP
IPC: B29C44/56
Filed: 1962-11-23
Abstract: 948,124. Embossing; ornamenting. HICKS & OTIS PRINTS Inc. Nov. 23, 1962, No. 44463/62. Headings B6G and B6J. Embossed formations are made in sheet sponge resilient material by applying adhesive to selected areas where it is absorbed, rendering the adhesive settable, and compressing the material as the adhesive sets so that, on release of the pressure, the material is held compressed in the selected areas by the adhesive to give depressed areas. The material may be a sponge of rubber or synthetic plastics material. If a sponge, it may be of the open or closed cell type, the cells of the latter being ruptured at the areas by a solvent, or by heating or by crushing. As shown in Fig. 1, the sheet 10 has optionally a pervious or impervious resilient or non-resilient backing 11 and is passed between rollers 15, 16 which compress it and print it in selected areas with adhesive ink which is absorbed. The absorption is effected to different depths by providing in roller 15 ink-carrying channels of different depths, the ink being supplied thereto by a doctor blade 18. Instead of channels, roller 15 may have projections of different height receiving differing amounts of ink from a resilient inking roller and penetrating the thickness of the sheet to different depths. Thereafter, a heater 29 renders the adhesive ink settable and thereafter the sheet is compressed between rollers 29A, 29B to form the depressions. The rotary devices may be replaced by flat-bed devices. A series of roller pairs 15, 16 may be provided for printing in different colours. The sheet may be pre- or post-printed with a further pattern which does not use adhesive ink and therefore does not provide embossments. The embossed surface may be covered with a coating comprising metallic flakes which are held flat on the surface in the depressions to give a reflective layer but are randomly disposed elsewhere to give a dull metallic surface. Alternatively, the embossed surface may be covered with an adhesively secured fabric layer or plastic sheet. In this case the adhesive impregnating the sponge material need not be coloured. The coloured areas may extend through the sponge material and it may have depressed areas on both surfaces. A metallic layer may be applied to the depressed areas by running a carrier sheet carrying the metallic layer in contact with the sponge material as it passes through rollers 29A, 29B, the layer being transferred to the depressed areas only. In a modified process, the whole surface may be printed with an adhesive, compressed, and treated in selected areas with a solvent for the adhesive to relax the adhesion in those areas.
Patent GB-1280932-A (GB)
Title: Process and apparatus for the forming and packaging of bales
IPC: B65B27/12
Filed: 1970-09-22
Abstract: 1280932 Packaging under compression LINDEMANN MASCHINENFABRIK GmbH 22 Sept 1970 [10 Oct 1969] 45142/70 Heading B8C [Also in Division B5]  In a process of baling and packaging under compression materials which expand when the pressure is released, sheets 6, 8 of flexible wrapping material are placed one on each end wall 10, 13 of a baling press so that one sheet 8 forms a base portion B1 and at least one pair of opposed side portions S1 extending towards the other sheet 6, and the other sheet forms a base portion B2 and at least one pair of opposed side portions S2 extending away from the first sheet, and, during compression of the material, the second sheet 6 is moved between the side portions of the first sheet (Fig. 8), the overlapped side portions are joined together, and when the end walls 10, 13 are moved apart the packed material expands and pushes the second sheet inside out (Fig. 11, not shown). In the example shown in the drawings the sheets 6, 8 comprise open-mouthed plastic bags which are joined together by welding heads 32. Fig. 2 shows an arrangement for feeding the bags to the bale forming press 2. The bags 6 are lifted from a storage stack 5 by a suction plate 9 which swings about a pivot and lowers the bag 6 over a tying plate 10 which is moved into and out of the baling press by an hydraulic pusher 18. A conveyer 7 comprising two parallel conveyer chains 7a has L-shaped hooks 12 adapted to engage loops 11 on the bags 8. The apparatus may comprise a preliminary press 1 (Fig. 1) with a downwardly acting plunger and the bale-forming press 2 whose plunger 14 acts upwardly. A double press box 3 comprising press boxes 3a, 3b is rotatable about a vertical axis. The press 2 includes a stationary press box 4 for the final bale-forming, tying and packaging operations. The bale may be tied loosely so that when the end walls are moved apart the material expands and pulls the tying cord tight. The walls of the press box may have nozzles (26) for blowing open the bag 8 and suction devices for holding it in position. Spreader fingers 21, Fig. 7, are provided in the four corners of the press box and operated by crank discs 22 to spread and hold open the bag 8. These fingers 21 extend through openings 20 in the walls of the press box 4 and travel through the path I-IV. Pivoted retainer fingers 16 (Fig. 2) are provided in the press boxes 3a, 3b.
Patent GB-1114571-A (GB)
Title: Improvements in or relating to controlling electric motors
IPC: H02P25/26
Filed: 1963-11-15
Abstract: 1,114,571. Control of A.C. motors. BRENTFORD ELECTRIC Ltd., and M. G. J. FRY. 13 Nov., 1964 [15 Nov., 1963], No. 45257/63. Heading H2J. The rotor resistance of an induction motor is controlled in accordance with slip frequency so as to reduce variation of the torque and to maintain it at a substantially maximum value. Each section of the rotor resistance is adapted to be short-circuited by silicon controlled rectifiers which are rendered non-conductive by pulses on leads S1, S2, S3. " On " and " off " signals alternate between leads 17, 18 at periods corresponding to each train of eight pulses on lead 13 which is fed from constant frequency source 11 through pulse-former 12. When an " on " signal passes to lead 17, counter stages 26, 27, 28 are returned to zero condition. Gate 22 passes each pulse representing the slip frequency, these pulses being counted by stages 26-28. Gates 32-34 prevent the outputs of these stages from being transmitted further until the signals on leads 17, 18 reverse. An " off " signal appearing on lead 17 closes gate 22 and prevents further pulses to counters 26-28 the signals from which are transmitted to leads S1-S3. The counter stages 35-37 operate in a reciprocal manner, each counter alternately counting pulses and transmitting the binary coded signals corresponding to the slip frequency to the leads S1-S3. The induction motor may be adapted for straight-on starting, or the stator windings may be supplied through a variable voltage device controlled in accordance with speed error. The stator circuit may comprise a reversing switch, a circuit-breaker being tripped when the motor is at standstill after a reversecurrent braking operation. For this purpose, leads attached to the outputs of counters 61, 62 all receive " on " signals only when the slip and synchronous frequencies are equal, such signals being passed by an " and " gate to the solenoid of the circuit-breaker.
Patent GB-1173434-A (GB)
Title: Resilient or Shock Absorbing Wheels
Inventor: DAFFERN ARTHUR
IPC: F16D3/70
Filed: 1966-10-11
Abstract: 1,173,434. Resilient wheels. DAVID BROWN GEAR INDUSTRIES Ltd. 10 Jan., 1968 [11 Oct, 1966], No. 45289/66. Heading F2U. The rim 13 of a gear-wheel is mounted on its hub 10 by means of bolts 15 passing through bores 17, 18 and 20 in flanges, (or series of lugs), 11, 12 of the hub and a flange or series of lugs 14 on the rim, a rubber bushing 19 being inserted in bore 20, and the bores 17 and 18 being equal to or respectively greater than and less than the bore 20 so that each bolt 15 and its bushing 19 may be individually removed to replace worn bushings. Again, two flanges (or series of lugs) may be formed on the rim, and only one on the hub. The bolts are retained in position by collars 16 in bores 17 and 18, internal and external circlips 22, 21 being provided at both ends of the bolts adjacent the collars 16. On removing one internal circlip 22, the bolt 15, collars 16, and bushing 19 may be withdrawn from the bores from that end. A tool (24), Fig. 2 (not shown), is described for removing the bolt assemblies, and includes two screws (26) engaging dimples 23 on the rim 13 when the tool is clamped thereto. The tool also includes an hydraulically or manually operated plunger including a screw threaded end adapted to engage either a screw threaded bore (31) in the bolt 15 to withdraw the bolts, or a similar bore in a thrust member (30) adapted to abut one of the collars 16 to push the replaced bushing and bolt back into their bores. The collar 16 at one end of the bolt may be formed integral therewith, or the bolt 15 and bushing 19 may be formed as a single unit obviating the need of circlips 21. A threaded bore (31) may be provided at both ends of the bolts 15 to facilitate their removal from either side of the gear-wheel when bores 17, 18 and 20 are equal.
Patent GB-1489881-A (GB)
Title: Tractors and other vehicles
IPC: B60K17/10
Filed: 1974-10-21
Abstract: 1489881 Hydraulic reciprocating motors C VAN DER LELY NV 21 Oct 1974 [22 Oct 1973] 45487/74 Heading F1A [Also in Division B7] Each wheel of an agricultural tractor (see Division B7) is driven by individual wheel drive mechanism comprising a pair of double-acting hydraulic cylinders 80 which are pivotally connected to conical extensions 86 of a housing 67 and have pistons 79 connected by respective rods 76, 78 to bearing bushes 72 separately rotatably mounted on a crank-pin 68 integral with a shaft 64 journalled in the housing 67 and carrying the wheel 3. Pressurized hydraulic fluid is admitted to each cylinder 80 by control means 88 including slidable valve elements carried by a rod 90 having mounted thereon a roller 92 which engages a cam plate 70 on the shaft 64.
Patent GB-1193313-A (GB)
Title: Polymerisation Process
IPC: C08F210/16
Filed: 1967-10-06
Abstract: 1,193,313. Polyolefins. PHILLIPS PETROLEUM CO. 6 Oct., 1967 [10 Oct., 1966], No. 45838/67. Heading C3P. The polymerization of one or more aliphatic 1-olefins containing 2-8 carbon atoms and having no branching nearer the double bond than the 4 position in the presence of a chromium oxide catalyst and n-hexane as diluent, is conducted at a temperature in the range of 280-360‹ F. and at a pressure sufficient to maintain a single liquid hydrocarbon phase, and the olefin feed and product withdrawal rates are such that the product concentration in the liquid phase is from 20-60% by weight. The preferred pressure is from 300-450 p.s.i.g. The process may include an initial step of establishing a single liquid phase containing 20-60% by weight of the polymer product or this step may comprise feeding the olefin or olefin mixture into n-hexane containing the catalyst and maintaining the polymerization temperature at 265- 270‹ F. and the pressure at 225-230 p.s.i.g. until the product concentration in the diluent reaches 20-25% by weight. Alternatively the initial step may comprise initiation in the presence of cyclohexane and the catalyst, wherein the cyclohexane is replaced by n-hexane when the polymer concentration reaches the desired operating range. Diethyl zinc was used as a co-catalyst to scavenge poisons from the feed stock. The preferred monomers are ethylene or a mixture of ethylene and 1-butene.
Patent GB-1452237-A (GB)
Title: Valve stem seal and lubricator
IPC: F01M9/10
Filed: 1974-10-25
Abstract: 1452237 Seals FORD MOTOR CO Ltd 25 Oct 1974 [5 Nov 1973] 46198/74 Heading F2B In order to control the flow of oil to the interface 81, 83, of the bearing of a stem 83 of an I.C. engine intake or exhaust valve, the stem is sealed with a gapped porous cylinder 79 having an elastomeric segment (75, Fig. 7, not shown) bonded under tension across the gap. The tension ensures that there is no gap for oil to seep between the stem 83 and cylinder 79, so that the oil reaching the interface traverses the porous body of the cylinder 79, which may be of sintered or powdered metal. The segment (37, 61, 75) may be integral with a ring 77 or a cup (53, Fig. 5, not shown).
Patent GB-1032704-A (GB)
Title: Improvements in or relating to toasters embodied in gas or electric ranges
IPC: A47J37/08
Filed: 1963-11-26
Abstract: 1,032,704. Toasters. S. LEVI. Nov. 26, 1963 [Dec. 3, 1962], No. 46674/63. Heading A4D. [Also in Division F4]  A toaster with upwardly open slots 6 is incorporated in the top plate of a domestic cooker r and may have its control knobs juxtaposed to those of the electric hot plates or gas burners. Bread carriers 10 are displaceably carried in slots 6 between electrical heating elements 8. Alternatively, plates heated by gas burners may replace elements 8.
Patent GB-1527626-A (GB)
Title: Apparatus for recording a measured quantity converted into a digital voltage or current signal
IPC: G01D9/02
Filed: 1975-11-12
Abstract: 1527626 Recording apparatus KERNFORSCHUNGSANLAGE JULICH GmbH 12 Nov 1975 [13 Nov 1974] 46780/75 Heading G1J A recorder which receives a measurement signal in the form of a digital voltage or current coded to a given notation system so that it consists of individual digital elements which correspond to numbers in the ordinal groups of the given rotation system comprises an array of printing blocks 17 and means for receiving the digital signal elements which represent the digital signal in a sequence of numerical digits corresponding to the given notation system, the printing blocks being arranged side by side in a sequence corresponding to the significance of the ordinal groups of the given notation system, and numerical characters are arranged on each block in a sequence corresponding to the numerical values of the characters in the notation system. Each block 17 is a drum with the numbers arranged helically round it in ascending value, e.g. 1-9. Each drum is rotated in response to signals in respective channels of a selection circuit. The drums act through an ink ribbon 18 to print on a chart 19 numerical values representing the three most significant digits of the signal, each character being in its correct analogue position on the chart.
Patent GB-1143443-A (GB)
Title: A sampling system having an electrical switching circuit
IPC: H01H36/00
Filed: 1966-10-21
Abstract: 1,143,443. Photo-electric spectrophotometer. BAUSCH & LOMB Inc. Oct.21, 1966 [Dec.9, 1965], No.47394/66. Heading G1A. [Also in Division H1] In a spectrophotometer for measuring the transmission and absorption characteristics of a specimen a monochromatic radiation beam 14 is split into two beams 18, 20 which are then passed separately through a sample chamber 28 and a reference chamber 40 to a photo-multiplier 36. A beam switch 46 ensures that only one beam 18 or 20 is passed at any one time. The pulsing output of the photo-multiplier 36 is amplified and passed to a magnetic switch 64 (Heading H1N) which separates the sample pulses from the reference pulses. The magnetic switch has a rotary magnetic actuating shield carried on the same shaft of electric motor 54 as beam switch 46 to ensure synchronization with the beam switch. The sample pulses are fed to an output circuit 68 where they may be measured. The reference pulses are used for controlling the gain of the photo-multiplier by comparing a reference pulse with a standard 74 and passing the amplified resultant signal to a regulator 80 connected to the high-voltage supply of the photo-multiplier.
Patent GB-1399065-A (GB)
Title: Process for the production of tetrabromophthalic anhydride
IPC: B01J27/00
Filed: 1973-10-12
Abstract: 1399065 Tetrabromophthalic anhydride DEUTSCHE GOLD-UND SILBER - SCHEIDEANSTALT 12 Oct 1973 [14 Oct 1972] 47662/73 Heading C2C Tetrabromophthalic anhydride is produced by the bromination of phthalic anhydride at elevated temperature with Br 2  and H 2 O 2  in the presence of H 2 SO 4  and a bromination catalyst. Preferably the mol. ratio of H 2 SO 4  to anhydride is 10 to 60 : 1 and of H 2 O 2  to anhydride is 2 to 4: 1. It is especially preferred to introduce a mixture of 70% H 2 O 2  and concentrated H 2 SO 4  and to use iodine as bromination catalyst. The preferred reaction temperature is 50 to 110 C.
Patent GB-950922-A (GB)
Title: Cast iron
IPC: C22C37/04
Filed: 1962-12-18
Abstract: In the production of spheroidal graphite iron particularly suitable for mechanical working, crude iron is refined by blowing with oxygen to lower the carbon content to the range of 1.2-3.6% and to remove substantially all the silicon.  The bath is then deoxidized with a silicon-containing substance to give a silicon content of 0.2-0.5%; a spheroidizing agent and more silicon are next added, and the melt is cast into a chill mould to yield a carbide iron containing .C.1.2-3.6.% by weight .Si.1.0-2.0. .Mn.1.5. .P.0.07. the balance, apart from spheroidizing agent, impurities and incidental constituents, being iron.  By annealing the casting above the upper critical point, e.g. at 1010-1065  DEG C. for 1-2 hours the carbides are decomposed to finely dispersed graphite spheroids and austenite. The initial crude iron contains preferably .C.2.5-4.2.% by weight .Si.2. .Mn.0.05-1. .P.0.06. .S.0.3. The spheroidizing agent is preferably magnesium, e.g. in the form of magnesium ferrosilicon, but this may be wholly or partially replaced by cerium, calcium, lithium, sodium or potassium.  As exemplified a master alloy containing .Si.47.% by weight .Mg.9. .Ce.10. .Ca.10. .Fe.balance. is used. Prior to its use the melt is desulphurized with sodium carbonate followed by agitation with nitrogen.  If the casting is allowed to become cold before it is annealed, it should be preheated at 540-705 DEG C. to uniform temperature before transfer to the annealing furnace; use of the products for steam traps and gear blanks is referred to. Specifications 630,070 and 678,487 are referred to.
Patent GB-1287463-A (GB)
Title: A method of recording data
IPC: G06K19/02
Filed: 1969-09-30
Abstract: 1287463 Electrostatic recording AUSTRALIA DEPARTMENT OF SUPPLY SECRETARY OF 30 Sept 1969 [30 Sept 1968] 48050/69 Heading G2H [Also in Division G5] Data is recorded and immediately developed by traversing an electrically polarizable surface 27 of resistivity not exceeding 10<SP>13</SP> ohm. cm. with a modulated signal not exceeding 70 volts applied between a stylus 20 adjacent or contacting the surface, and a backing 2, 26 of greater conductivity than the surface, to produce a latent image and in the presence of a liquid developer 21 consisting of a (toner) medium attracted to the image and dispersed in an electrically insulating carrier liquid which wets the surface adjacent the stylus. In other embodiments, the stylus is hollow and contains the developer which is metered through the stylus to the surface in accordance with the latent image; the developer is applied to the surface upstream of the stylus; or in pores in the surface. The stylus may be piezo-electrically driven to record a laterally-modulated track and the surface may be in the form of a disc or drum. The toner may be such as to enable magnetic, conductive or capacitive read-out. Suitable materials for the polarizable surface are given.
Patent GB-1466603-A (GB)
Title: Flip-flop controlled clock gating system
IPC: H03K5/135
Filed: 1974-11-06
Abstract: 1466603 Pulse gating circuits BURROUGHS CORP 6 Nov 1974 48053/74 Heading H3P A clock pulse gating system for testing digital data processing systems can provide either a train of clock pulses which may be switched on and off at will or single clock pulses. With the push button switches PB1, PB2, PB3 as shown, an initiating signal on T4 sets the JK flip-flop FF3 to enable NAND gate G7 to pass clock pulses from T1 through NAND gate G6 to the output T2. To stop the pulses, PB2 is pressed which switches over FF3. As a result NAND gate G7 blocks the clock pulses. FF3 does not switch back when PB2 is released because the J3 input is still low. The clock pulses may alternatively be stopped by a comparator 4 in response to a predetermined relationship between the levels on 6 and 8. If, while G7 is inhibiting clock pulses, push-button PB1 is pressed, so that all inputs to AND gate 64 are high, the next clock pulse changes over FF1 and FF2 and at the next subsequent clock pulse FF2 changes back because of the connection between Q2 and G4. Thus G5 is enabled to send one clock pulse to T2. To restart the clock pulse train PB3 is pressed. As with PB1 this sends a clock pulse through G5, but this time this pulse finds AND gate G13 enabled and is applied to J3 to set FF3 to resume the supply of pulses through G7. If PB2 is still pressed when PB3 is pressed, two pulses are transmitted to T2, one through G5, the other through G7.