baber/WOPTO huggingface dataset:
Patent GB-1268106-A (GB)
Title: Coupling
IPC: F16D3/20
Filed: 1969-09-04
Abstract: 1,268,106. Shaft couplings. HUTA ZYGMUNT PRZEDSIEBIORSTWO PANSTWOWE. 4 Sept., 1969 [14 Sept., 1968], No. 43749/69. Heading F2U.  A first shaft having an end 2 which is of triangular, square or polygonal section is inserted into a hollow end 1 of a second shaft, the bore of which has part spherical or part cylindrical recesses 3 each accommodating a correspondingly shaped insert 4 with a flat face mating with one of the faces of the end 2. The inserts 4 may have tapped holes for bolts 6 to locate them during assembly, and may each comprise two parts 7, 8 resiliently urged apart. The shaft end 2 may have a seal there-around to the shaft end 1 to retain lubricant in the bore thereof.
Patent GB-1488180-A (GB)
Title: System for controlling the air-fuel ratio in an internal combustion engine
IPC: F02D43/00
Filed: 1975-10-24
Abstract: 1488180 Spray carburetters NISSAN MOTOR CO Ltd 24 Oct 1975 [25 Oct 1974 13 May 1975] 43750/75 Heading F1H [Also in Division G3] In a system for controlling the air/fuel ratio supplied to an I.C. engine in response to the difference between the output of an electrical exhaust gas composition sensor and a reference, using a proportional plus integral controller, the integration has a time lag of the first order, achieved with a resistor and capacitor circuit. It is explained that this simple integrator is sufficient over the times involved, but it may be improved as shown in Fig. 5 by following the R.C. circuit 102, 104 by a limiter 200; by clipping the top and/or the bottom of the integration curve at the right points the net result may be made the same as that produced by an ideal integrator (graph, Fig. 6b, not shown). In the embodiment, Fig. 1, 14 contains a reference with which the output of 10 is compared. The output of controller 18 is combined with a saw tooth waveform from 22 to produce square pulses of variable mark space ratio. These energize valves 24, 26 connected to main and slow air-bleed chambers 28, 30 and thereby regulate the amount of air being admixed with fuel from float chamber 32 for admission to the engine by nozzles 34, 36.
Patent GB-926723-A (GB)
Title: Electrostatic recording
IPC: G06K15/14
Filed: 1961-12-07
Abstract: 926,723. High-speed printers. TELETYPE CORPORATION. Dec. 7, 1961 [Dec. 27, 1960], No. 43807/61. Class 100 (4). Pulse operation; type-wheel machines.-In an electrostatic computor output printer in Fig. 2, alpha-numerical information is recorded by the use of digital computor techniques, on a dielectric web 25, having a resistive layer 70 in contact with a character drum 42 rotating at a constant speed and an overlying insulating layer 71 spaced from a transversely disposed array of backing electrodes 55, one for each character ring 52 of the character drum. The sequential selection of the proper character ring 52 and associated character type 53, one for each revolution of the drum, is effected by a magnetic mark 51 on the drum emitting a pulse on passing over a magnetic head 58, which transmits the pulse to a revolution counter 59 so as to energize one of the lines of a selection matrix 60, the line being fully activated to transmit a pulse through a voltage amplifier 68 when a gate 61 is rendered operative, as the selected character is opposite the electrode 55, to form a latent electrostatic pattern on the web. The gate operates when magnetic marks 62, one for each character, are sensed by a magnetic head 64, transmitted to a character counter 65, compared in a comparator 66 with the character inserted in a character register 67, and when on the detection of identity an output signal is emitted by the comparator 66. To print a full line the character drum must complete as many revolutions as there are columns to be printed. To compensate for skewing of the printed line the drum may be placed at an angle relative to the paper or the rings may be displaced relative to each other. In another embodiment (not shown), line-byline printing may be employed, wherein the electrodes are provided with a line storage memory device. Web-feeding; inking.-The web 25 in Fig. 1, having a resistive layer 70 of paper overlying an insulating layer 71 of a synthetic plastic material is fed from a supply roll 24 past a controlled tensioning device 26, 27 and advanced through a recording stage 20 in which the printing takes place. The latent images are rendered visible as the web passes the development mechanism 28, by depositing thereon an ink mist or electroscopic pigmented resin powder and the visible images are subsequently heated to dry the ink or fuse the resin in a fuser 30. Instead of fusing the resin images can be transferred to paper offset webs, or if of a small size produced by xerographic or photographic enlargement. Type-wheels and type surfaces.-The cylindrical drum 42, which may be of aluminium, has a plurality of type wheels 52, having mounted on their periphery raised steel alphanumerical characters 53. The spaces between the characters may be filled with a synthetic plastic material to present a smooth surface.
Patent GB-960306-A (GB)
Title: Direct writing oscillograph
IPC: G01R13/04
Filed: 1962-11-20
Abstract: 960,306. Recording-apparatus. CLEVITE CORPORATION. Nov. 20, 1962 [Dec. 1,1961], No.43825/62. Heading G1J. Apparatus for recording data comprises a source 10 of visible light, an optical system 13, 18 and mirror galvanometer 14, 15, 16 for directing light from the source 10, in accordance with the data to be recorded, on to a film 20 adapted to respond to visible light to record a latent image and to make such image visible by photolyzation and a motor 19 for driving the film capable of operating at a speed sufficient to record the latent image at a linear rate of 20000 inches per second, the optical characteristics of the source 10, system 13, 14, 18 and film 20 being such that a latent image recorded at such a speed is derived wholly from visible light emission from the source 10. The film 20 is substantially insensitive to light in the ultra violet and infra red ranges emanating from the source and the source, preferably an incandescent lamp, emits light preponderantly in the visible range. At least one element in the optical system is opaque to ultra violet light. The motor 19 drives the film 20 through a gear box 25 with a plurality of gear stages, push button controlled, to energize solenoids to select any one of a large number of chart speeds between 0. 2 and 50 inches per second. The life of the lamp 10 is prolonged by reducing the voltage thereto at lower speeds. When highest speed button 30 is pushed a switch 33 is closed to connect 10 watts lamp 10 direct to 15 volt A. C. source 11. When a medium speed button 40 is pushed to reduce the film speed, switch 42 connects lamp 10 to source 11 through resistor 34 and so on. With eight chart speeds only three changes of voltage are needed. The light source 10 may be a tungsten, zirconium or tantalum-carbide lamp.
Patent GB-925598-A (GB)
Title: Improvements in or relating to typographical composing and casting machines
IPC: B41B11/18
Filed: 1960-12-21
Abstract: 925,598. Type-bar making machines. MERGENTHALER LINOTYPE CO. Dec. 21, 1960 [Dec. 28, 1959], No. 43849/60. Class 100 (3). Assembling matrices and spacebands; keyboards.-Assembling mechanism for typographical composing machines includes an assembler wherein matrices and spacebands are composed, a device for stacking the matrices and spacebands in the assembler one by one as they are delivered thereto, and automatic means for advancing the composed line in the assembler a predetermined distance prior to the delivery thereto of a spaceband, said line advancing movement being distinct from that which takes place by the stacking of the matrices and spacebands in the assembler. A spaceband entering the assembler thus does not contact the preceding matrix and so tends not to be prevented from becoming properly seated. The star-wheel 15, Figs. 2 and 3, is mounted on a slide 24 which is moved momentarily to the left towards the assembler 13 when a solenoid 40 is energized. The star-wheel is rotated by a belt 51 which passes over an eccentricallymounted pulley 34 on the slide 25 for adjusting the tension of the belt. On actuation of the spaceband key lever 54, Fig. 5, a rear keyboard bar 55 is raised to operate the yoke 62 through a trigger 56, cam 65 and roller 66. Operation of the yoke 62 operates a yoke 72 through a trigger 70, cam 74 and the roller 66. The yoke 72 lifts a key reed 75, which lifts a rod 76 to operate the spaceband escapement. A pin 77 on the reed 75 raises a front keyboard bar 81 which operates a yoke 86 through a trigger 82, cam 90 and roller 91, and the yoke 86 lifts a reed 92 to close an actuating switch 94 for the solenoid 90. The timing is such that the starwheel is reciprocated before the spaceband reaches the assembler. Specification 925,597 is referred to.
Patent GB-1111788-A (GB)
Title: Improvements in or relating to flat bed knitting machines
IPC: D04B7/10
Filed: 1965-10-16
Abstract: 1,111,788. Knitting machines. B. V. CADMAN. 9 Jan., 1967 .[16 Oct., 1965], No. 43933/65. Heading D1C. Loop transfer is achieved on a flat bed machine having latch needles by the provision of eyed transfer elements A which after the needles have been raised engage the hooks of the needles with their eyes and extend the needles from their bed to ensure that their loops clear below the latches Fig. 2, Thereafter the elements push the needles back into their bed such that the needle loops on the shanks slide over the latches and land on the elements above the needle hooks, Fig. 4, whereafter the elements are raised and moved transversely of the row of needles to reposition themselves above the adjacent needles. The needles and elements then co-operate to re-transfer the loops back to the needles.
Patent GB-1027887-A (GB)
Title: Improvements in or relating to clutches
Inventor: SEARLE GEORGE REX
IPC: G05G15/00
Filed: 1963-11-07
Abstract: 1,027,887. Clutch control. SMITHS INDUSTRIES Ltd. Oct. 30, 1964 [Nov. 7, 1963], No. 43937/63. Heading F2L. A clutch includes a sleeve 4 movable axially through a pin and slot connection 5, 12 to produce a signal when the driving and driven members rotate at different speeds, the signal preferably being used to reduce the current in the field winding of a magnetic particle clutch such as described in Specification 649,533 if the driven member rotates faster than the driving member, so as to reduce the transmitted torque. In the arrangement shown the pin 12 is carried by the driven shaft 3 and the sleeve 4 carries spring arms 6 with friction elements 7 engaging a drum 2 mounted on a member 1 attached to the driving member. If the latter rotates at a higher speed than shaft 3 the sleeve 4 is moved to the left until pin 12 reaches the end of slot 5 when the elements 7 slip on drum 2, but if these conditions are reversed the sleeve moves to the right and engages a pivoted arm 9 to depress a switch contact plunger 10 by which the current through the field winding is reduced.
Patent GB-1049540-A (GB)
Title: Electric signal receiving and re-transmitting apparatus
Inventor: BARNETT DERRICK
IPC: H03M13/51
Filed: 1964-10-30
Abstract: 1,049,540. Electric selective signalling. ERICSSON TELEPHONES Ltd. July 23, 1965 [Oct. 30, 1964], No. 44290/64. Heading G4H. A received 2-out-of-5 coded signal is retransmitted only if a check reveals exactly 2 code elements. Marked ones of five input leads attempt to energize corresponding self-holding relays but this is prevented if a transistor connected to the leads through diodes detects more than two leads marked. If two of the relays are energized, contacts thereof energize a further relay which in association with further contacts of the self-holding relays marks two of five output leads, and after a delay de-energizes the self-holding relays. The coded input may be derived from a selected push-button.
Patent GB-1358768-A (GB)
Title: Anti-pendulating lifting cranes
IPC: B66C13/06
Filed: 1971-09-23
Abstract: 1358768 Anti-pendulating cranes HAGGLUND & SONER AB 23 Sept 1971 [24 Sept 1970] 44306/71 Heading B8B [Also in Division F1] A crane with a jib 4 carrying a load 11 is slewed in the normal way by an hydraulic pump 13 supplying an hydraulic motor 14 via a valve block unit U which includes a selector valve 15, four non-return valves 16, 17, 18, 19, a pressure limiting valve 20 and a control valve 21. Outside the unit U is a further pressure limiting valve 22. The motor 14 is braked by a cylinder 23. Supplementary apparatus for damping pendulation is represented by the block V which includes a pendulation damping valve 24, two actuating valves 25, 26, braking valve 27 and a non-return valve 28. Pressure is applied to the block V through line 55, control pressure through line 47 and supply pressure through line 48. Operation of the pendulating damping valve 24, after the jib 4 has been slewed to a desired position, moves it from the position shown to allow pressure from the line 55 to enter the line 56. Control pressure from the line 47 holds the valve 25 so as to allow the pressure from line 56 to pass through line 60 to act against the control pressure in line 51 to move valve 26 into its left position. The valve 27 is moved by the pressure from line 55 through line 57 augmenting the control pressure acting through the line 50 to allow the supply pressure from line 48 to pass through the line 52 to the cylinder 23 to hold the brake off. Reduction of pressure in the line 42 due to the position of the valve 26 allows the pressure limiting valve 20 to open. By the short-circuit obtained: lines 29, 30, 36; valve 16; lines 37, 39; valve 20; lines 62, 63; valve 19 and lines 34, 31, 32 the motor 14 can move freely to allow the still moving load to pull the jib 4 to turn the crane so that kinetic and static energy possessed by the load is dissipated by the friction of the crane, thereby damping movement of the load. The damping of pendulation can also be performed during full speed slewing by the above-described disengagement the slewing machinery allowing the crane to continue to turn by its own kinetic energy and that of the load 11 until its slewing motion stops. In a similar manner to the above an overhead bridge crane (not shown) with a crab carrying a load can utilize the friction of the crab to damp pendulation of the load.
Patent GB-1485092-A (GB)
Title: Amplifier with gain control
IPC: H03G3/00
Filed: 1975-10-28
Abstract: 1485092 Transistor amplifiers; substation circuits PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 28 Oct 1975 [31 Oct 1974] 44360/75 Headings H3T and H4K An amplifier with gain controlled by a current, having signal input terminals 4, gain control terminal 1 and common terminal 3, comprises a transistor T2 with signal output 2 coupled to the collector and supply and with its base D.C. coupled to gain control terminal 1, e.g. via the base-collector junction of transistor T1, with a shunt to common line 3 via a semi-conductor junction such as the base-emitter junction of transistor T1, or via a diode or diode connected transistor, in series with resistance R1 having the signal input across it, in such a way that the D.C. component Iu of current through the collector-emitter path of transistor T2 is proportional or equal to the control current I0 and large compared with the base current of T2. In the simplest embodiment (Fig. 1, not shown), only transistors T2 and T1 are present, T1 being diode connected, the circuit acting as a current mirror, keeping the currents through the two transistors proportional or preferably equal, largely independent of temperature, by means of identical transistors and proportional loads R1, R2. The gain of transistor T2 is determined by its D.C. current Iu and therefore by control current Io; the input impedance in the absence of R1, is high, allowing R1 to be dominant, while the input impedance to control current is low. Mismatch due to the base current of T2 may be compensated, improving current balance and temperature compensation, by coupling the base of T2 to the collector of T1, no longer diode connected, and driving the emitter of T2 from the base of T1, feeding R2 via a third transistor T3 diode connected (Fig. 2, not shown). In a telephone circuit, see Fig. 3, in which the control current Io is made to vary inversely with the energizing current from the telephone line by external means, the gain of transistor T2 is again controlled, with the base currents of both T1 and T2 supplied by auxiliary transistor T4: the input impedance at terminal 4 in the absence of R1 is then higher by a current gain factor # than in the earlier embodiments, allowing more latitude in R1. The output is further amplified by Darlington pair T5, T6 and, if the input 5 is a microphone, is applied to the telephone lines 6, 7 also acting as supply. I.C. input 5 is from an incoming line, the output is taken to a receiver.
Patent GB-1093460-A (GB)
Title: Field coil connection for four-pole rotors
IPC: H02K3/12
Filed: 1966-10-05
Abstract: 1,093,460. Arrangement of leads within dynamo-electric machines. GENERAL ELECTRIC CO. Oct. 5, 1966 [Oct. 6, 1965], No. 44513/66. Heading H2A. In a turbo-alternator rotor having four series-connected pole windings, the unbalance produced by a short-circuit between adjacent coils is reduced by connecting the inner ends of diametrically opposite coils to the supply and to each other respectively, the outer ends being interconnected to complete the circuit. Field current is supplied by conductors 6, 7 in rotor bore 5, passes through radial connector 8 to coils 30, 31 in series, and by diametric conductor 12 to coils 33, 32 in series, and thence back by conductor 9. By this arrangement, shortcircuits at C or D will eliminate opposite poles and so preserve magnetic balance.
Patent GB-1351821-A (GB)
Title: Optical arrangements
IPC: G03B27/50
Filed: 1971-09-24
Abstract: 1351821 Optical scanning apparatus RICOH K K 24 Sept 1971 [14 Oct 1970] 44547/71 Heading G2A An optical arrangement for a photo-copying machine comprises an optical system mounted in a support 31, which system is reciprocatable along a path between an original support and a copy sheet support; first and second winding shafts 53, 54 lying at opposite ends of the path; first and second light obstructing screens 56, 55 extending from the shafts 53, 54 respectively to the support 31; and means coupling the shafts 53, 54 to pay out or wind up the screens as the support 31 moves. A belt 43 is connected to the support, which belt extends around winding shaft drive pulleys 45, 47 and is driven in response to rotation of a drive pulley 44. Springs are provided to inter-connect the pulleys 45, 47 with their respective winding shafts 53, 54 to transmit rotation thereto. The support 31 carries a light source, and the optical system contains a V-shaped reflector 32. The screens 56, 55 prevent stray light from reaching a copy sheet.
Patent GB-1028187-A (GB)
Title: A method of cold pressing collar-headed screws with hollow shanks and a tool for performing the method
IPC: B21K21/00
Filed: 1962-11-26
Abstract: 1,028,187. Forging; extruding. M. LIEBERGELD. Nov. 26, 1962 [May 25, 1962], No. 44561/62. Headings B3H and B3P. A collar-headed screw blank b, Fig. 2 (not shown), having a hollow shank is made by cold pressing a workpiece a, Fig. 1 (not shown), within a die and over a punch 13 which forms the hollow shank and simultaneously expands the workpiece into a cavity 16 to form the collar. The die comprises an upper part 2 secured by ring 4 to a holder 5, and a relatively movable centre pin 3 having a nose 3a and which is movable subsequently by pins 7 to eject the blank from the upper part 2. A lower die part 1 supported in an outer shell 8 on a stationary bolster 9, is biased upwardly by springs 10. The punch 13 is also supported on the bolster and a surrounding sleeve 14 forms the lower end of the shank and is movable upwardly by pins 15 to eject the blank from die part 1. The screw head may be of round or polygonal section.
Patent GB-1281914-A (GB)
Title: Moisture stabilisation of fibrous cellulosic materials
IPC: D21H17/53
Filed: 1969-09-09
Abstract: 1281914 Polyalkylene glycol compositions MO OCH DOMSJO AB 9 Sept 1969 [10 Sept 1968] 44576/69 Heading C3R [Also in Divisions D1 and D2] A composition which stabilizes cellulosic fibres against moisture comprises (1) a polyoxyalkylene glycol of the general formula where R is H or CH 3 , n 1  is 1, 2 or 3 and n 2  is 5 to 350, with the proviso that R is not CH 3  when n 1  is 1, and (2) a polyoxyethyleneoxypropylene glycol of the general formula where the sum of m 1  and m 2  is 2 to 20 and either can be zero, n is 1 to 25, p is 1 to 5, and the average molecular weight of the copolymer is 1000 to 5000. A preferred composition comprises 0À5 to 35 parts by weight of polymer (1) of average molecular weight 238 to 6000, from 0À25 to 7 parts of copolymer (2) and from 65 to 99 parts of a solvent, e.g. water.
Patent GB-1080748-A (GB)
Title: Improvements in or relating to fluid control valves
Inventor: CLEMENTS HUBERT JOHN
IPC: F16K31/44
Filed: 1964-11-04
Abstract: 1,080,748. Valves. WALTER KIDDE CO. Ltd. Aug. 19, 1965 [Nov. 4, 1964], No. 45050/64. Heading F2V. A closure 10, sealing an aperture 12 between inlet 14 and outlet 15 by a conical closure surface 11, is connected to actuating spindle 17 with lost motion provided between internal spindle shoulders 20, seating the closure 10, and 21, which unseats the closure 10, and is also loaded by a spring 24 which is carried by spindle 17 and the force whereof is reduced as the spindle 17 is raised to permit the inlet pressure to lift closure 10 so that flow is gradually initiated past the tapered closure portion 26 prior to the closure being lifted by shoulder 21 to ensure a full flow through aperture 12; the maximum valve opening being limited by spindle shoulder 36. The spindle 17 passes through a stuffing box comprising metal backing washers 30, 31 on either side of polytetrafluoroethylene chevrons 32 which are compressed between a gland nut 18 and spring 33; locking wire apertures 38 are provided in not 18. In an alternative embodiment (Fig. 4, not shown) the lost motion is provided by engagement of the end (48) of a solid spindle (17<SP>1</SP>) within a hollow cyclindrical extension (49) of the closure member (10<SP>1</SP>) and the closure is loaded by a non-adjustable rate spring (33) which abuts the lower backing washer (31). The valve seat may be removably threaded in from the outlet side (Fig. 2, not shown) or from the inlet side (Fig. 3, not shown) of the seat. The lost motion device prevents rotation of the closure with the spindle and resultant scuffing of the seating.
Patent GB-1513597-A (GB)
Title: Forming text on a record carrier
IPC: G03G15/22
Filed: 1976-11-02
Abstract: 1513597 Forming images on photoconductive material MAATSCHAPPIJ VAN BERKELS PATENT NV 2 Nov 1976 [26 Jan 1976] 45585/76 Heading B6C An image in the form of information is projected through a transparent charging electrode on to photoconductive material, e.g. to form an information-bearing label. As shown, information on a liquid crystal cell 22 is projected, by means of light source 23 and collimator 24, on to a photoconductive label 26 (from a supply roll 27) while situated between charging electrodes 33 and 34, the informationbearing label then being passed through a development chamber 30 and applied to a package 12 on a conveyor 16. Package 12 has previously been weighed on a machine 13 and a signal corresponding to its weight transmitted via calculator 31 to cell 22 where it is converted to optical information. A signal corresponding to additional information and produced by means of a keyboard 19 (associated with reading window 21) is similarly transmitted to cell 22. The labels may be advanced continuously (using flash) or intermittently. A transparency may be used instead of or in addition to the liquid crystal cell. The photoconductive material may be in the form of an endless belt from which the image is transferred to the final carrier.