baber/WOPTO huggingface dataset:
Patent GB-404658-A (GB)
Title: Improvements in or relating to ribbon-feed mechanism for the forme cylinder of a rotary printing press
IPC: B41F31/16
Filed: 1933-07-14
Abstract: 404,658. Ink - ribbon mechanism. ADREMA MASCHINENBAUGES., 62, Alt Moabit, Berlin. July 14, 1933, No. 20001. Convention date, July 21,1932. [Class 100 (iv).] In a rotary office printing-machine, the ink ribbon is arranged to pass in a helical or oblique path over the cylinder, better utilization of the ink ribbon being thereby effected. The ink-ribbon spools may be associated with feed-reversal mechanism arranged, in the manner described below, for positive operation under control of feelers co-operating with slots in the spools. In the arrangement shown in Figs. 1, and 3, spools 4, 5, parallel to the axis of the cylinder 2, are staggered longitudinally, and the ribbon 3 passes over skewed guide-rods 40, 41 which, to prevent the ribbon from being moved out of its helical path, are so arranged that the side edges 3<1>, 3<11> of the unwound part of the ribbon are of approximately equal length. Another guide-rod 42 is arranged parallel to the axis of the cylinder. The spools are provided with feedmechanism consisting of pawls 11, 12 which co-operate with ratchet-wheels 9, 10 on the spindles 6, 7 of the spools 4, 5 and are mounted on bell-cranks 13, 14, a bar 15 connecting the bellcranks being reciprocated by means of a cam-grove 19 in the framework. Masking-plates 20, 21, cooperating with pins 43, 45 on the pawls 11, 12, rock on the spoolspindles and are connected by a bar 22 having pin-and-slot engagement 23 with a lever 25 which has pin-and-slot engagement 27 with an arm 28 on a shaft 29. A coiled spring 30 bears on a pin 31 on the lever 25 and on the pin 27. The lever 25 has a lug 32 for co-operating with projections 33, 34 on the bar 15. Another arm 35 on the shaft 29 is provided with feelers 36, 37 having noses 38, 39 which rest on the coils of ribbon and are adapted to enter slots in the spool-hubs. When the ribbon is winding on the spool 4, the masking-plate 12 permits the pawl 11 to engage the ratchet-wheel 9, and the pawl 12 is silenced by means of a stationary abutment 46. When the ribbon has been wound off the spool 5, the nose 39 of the feeler 37 enters a slot in the spool-hub, the lever 25 is raised, and the lug 32 is caused to co-operate with the projection 34. During the next movement of the bar 15, the lever 25 moves the bar 22 towards the left, the masking-plates are rocked, the pawls 11 and 12 are disengaged and engaged respectively, and the feed is reversed. The lever 25, if obstructed by the projection 34, slides on the pins 23, 27, and the spring 30 is flexed and subsequently raises the lever. When the ribbon has been wound off the spool 4, the feeler 36 causes the lug 32 to co-operate with the projection 33 and the masking-plates are again rocked to reverse the feed. Detents 44, 47 are permitted by the masking-plates 20, 21 to engage the ratchet-wheels 9, 10 at the same time as the pawls 11, 12 respectively.
Patent GB-516739-A (GB)
Title: Improvements in or relating to sealing devices for fluid actuated apparatus
IPC: B60S9/12
Filed: 1938-07-06
Abstract: 516,739. Fluid-tight sealing devices. SMITH'S JACKING SYSTEMS, Ltd., (formerly SESSIONS & CO., Ltd., D.) and SESSIONS, D. W. July 6, 1938, No. 20007. [Class 122 (v)] In a lifting-jack or other fluid - actuated plunger - and - cylinder apparatus, an annular washer 12 is located in an enlarged open end 10 of the cylinder 1, and is held in posifion-by an internally threaded cap 13, screwed on to an externally threaded por tion of the cylinder, the washer and cap forming a fluid-tight seal between the cylinder 1 and the plunger 2. The cap 13 comprises a flange 14 with a frusto-conical lip 15 to form an abutment for the correspondingly shaped base of the washer which is substantially U-shaped in cross-section The cap also carries a protective packing 16 of felt or other resilient material. A short length of threaded tubing 17 limits movement of the plunger 2 out of the cylinder 1.
Patent GB-221068-A (GB)
Title: Improvements in or relating to the bearings of rollers and the like requiring to revolve in a liquid
IPC: F16C33/10
Filed: 1923-08-04
Abstract: 221,068. Dod, G. Aug. 4, 1923. Antifriction-wheel bearings; liquids excluding. - The roller spindles of dye becks and the like are supported by one or more wheels or rollers carried in a casing which forms an air seal when submerged in a liquid to protect the wheel bearings either from liquid in the beck or from the surrounding atmosphere. As applied to a beck having two rollers and m which the pull of the material is upwards, the ends of the rollers a, Figs. 3 and 4, have a wheel c<1> co-uperating with a wheel e<2> and with either a wheel e<1> or e<3>. The casing f<1> for the wheels e<1>, e<3> is in two parts and is air-tight so that the liquid in the dye beck cannot reach the bearings for the wheels e<1>, e<3>. When the upward pull of the material is relaxed the rollers are supported by an extension of the spindle a<1> engaging in an enlarged recess in the casing f<1>. The rollers e<1>, e<3> have a deep peripheral groove in which the central roller e<2> engages. In a modification for a beck having a single roller a, the wheel c<1> engages two plain wheels each having annular drip flanges on each side. In a further modification, a wheel c<2>, Fig. 5, has an annular flange which bears on two wheels e<5> in the casing f<1>. The casing f<1> in any of the constructions may be fitted inside the beck and in this case the bottom of the beck is rounded. To protect bearings from a harmful vapour a roll spindle a<*>, Fig. 9, has a wheel a<**> carried by two wheels e<***>, the spindles of which are supported by bearings similar to those in Fig. 5, and the casing- f* contains a suitable liquid.
Patent GB-1535091-A (GB)
Title: Manufacture of electronic circuits
IPC: G06F17/50
Filed: 1976-05-15
Abstract: 1535091 Computer-aided circuit design INTERNATIONAL COMPUTERS Ltd 29 April 1977 [15 May 1976] 20149/76 Heading G4A Electronic devices and associated horizontal and vertical conductors are assigned initial positions with respect to a notional grid of cells (there being no restriction on the number of conductors passing through each cell). The computer is programmed to process in turn each row (column) of cells perpendicular to a first grid axis to assign to each device and conductor in that row (column) a first axis co-ordinate having a minimum value consistent with spacing constraints imposed in respect of other devices and conductors to which co-ordinates have been assigned previously. Each column (row) of cells perpendicular to the other grid axis is then processed in turn by the computer to assign minimum value second axis coordinates, consistent with the spacing constraints, to the devices and conductors. The method has greater flexibility than known methods in which the positions of the devices are fixed first and then the connections are routed. The cell size may be chosen so that each device (of variable size) occupies an approximately whole number of cells. The co-ordinate increments may be equal to the minimum possible spacing between devices/conductors. The method is applicable to integrated circuits, microwired circuits and printed circuits. The computer preferably has a main store and a backing (disc) store holding a working file of details of devices and conductors, details for the row or column currently being processed being held in the main store. The conductors in each row or column are preferably arranged in priority order of length for processing in that order, and priority in processing may also be given to conductors and devices which, when placed, prevent another device or conductor being assigned a lower co-ordinate value than itself.
Patent GB-577467-A (GB)
Title: Improved method of and apparatus for moulding articles, particularly lenses, from thermoplastic materials
IPC: B29D11/00
Filed: 1943-12-02
Abstract: 577,467. Spectacle lenses. ABBEY, A. (American Optical Co.). Dec. 2, 1943, No. 20178. [Class 97 (i)] [Also in Groups V, XXVI and XXIX] Lenses are made from thermoplastic materials by moulding in resilientlymounted dies. A wafer 66 of glass or resin may be incorporated in the (resin) lens to form a bifocal lens.
Patent GB-1300503-A (GB)
Title: Improvements in or relating to cathode ray tubes
IPC: H01J29/88
Filed: 1971-04-19
Abstract: 1300503 Colour television tubes NIPPON ELECTRIC CO Ltd 19 April 1971 [23 Jan 1970] 20208/71 Heading H1D [Also in Division C1] Protuberances on the electrodes of a C.R.T., which promote arcing in use, are burnt off by a preliminary high voltage discharge and the adjacent glass of the neck is protected from deterioration by a rough coating of a crystalline glass applied in a vehicle and dried on.
Patent GB-596692-A (GB)
Title: Improvements in and relating to web-feeding mechanisms for printing and like machines
IPC: B65H35/06
Filed: 1945-08-08
Abstract: 596,692. Feeding webs. BLOCK & ANDERSON, Ltd., and SHAND, S. G. Aug. 8, 1945, No. 20324. [Class 100 (i)] A web feeding device for feeding different lengths of the web comprises a pair of feed rollers driven by a clutch, the opening of which is effected by a trip device the time of opening of which is controlled by a roller arranged between the web roll and the feed rollers and driven by the web. The web 1 is fed from its reel 2 by rollers 8, 9, the roller 9 being driven from a drive shaft 12 through a clutch of the planetary gear type, the clutch being operative while the planet wheel spider is locked against rotation by a sprag 20 engaging a toothed wheel 15 carried by the spider. A sprocket 25 fixed on a shaft 26 and driven by a chain 24 from a roller 7 engaging the web 1, drives a sprocket 27 through a clutch or coupling which is controlled by the sprag 20 in such a manner that it is only operative when the sprag engages the wheel 15. The sprocket 27 drives a wheel 28 having a number of angularly spaced pins 35 at different radial distances from the shaft 29 of the wheel, which is carried by a crank lever 30 mounted on the shaft 26 and engaging at its other end a nut 32 on a shaft 31 which is manually rotatable to raise and lower the wheel 28. The sprag 20 is carried by a rod 36 and is held in engagement with the wheel 15 by a spring-pressed catch 21 which is released by one of the pins 35 engaging a bail 22. In operation, the shaft 31 is operated to raise or lower the wheel 28 so that a selected pin 35 will be the first to engage the bail 22 and the sprag 20 is engaged with the wheel 15, by manual operation of the rod 36, to start the feed. When the selected pin engages the bail 22, the catch 21 is actuated to release the rod 36 which returns to its initial position, withdrawing the sprag 20 to stop the feed. At the same time, the wheel 28 returns to its initial position under the action of a spring. Specification 595,749, [Group XX], is referred to.
Patent GB-1359752-A (GB)
Title: Reception of hf electrical signals
IPC: H04B1/18
Filed: 1972-05-02
Abstract: 1359752 Radio receiving apparatus MULLARD Ltd 16 April 1973 [2 May 1972] 20365/72 Heading H3Q In an arrangement in which a masthead television frequency changer or preamplifier is connected to receiving apparatus via a two-wire cable which carries the signal to the receiver and also the supply to the masthead apparatus, a control voltage is superimposed on the supply voltage in the receiving apparatus and extracted at the masthead. In a satellite system aerial 1 is connected via band pass filter 2 to frequency changer 4 which receives local oscillations from oscillator 8, which is varactor diode tuned and may comprise a coaxial Gunn oscillator. The I.F. output of frequency changer 4 passes via D.C. blocking capacitor 12 to the inner conductor 13 of a coaxial cable, by which it is conveyed to the receiving apparatus. In the receiving apparatus the I.F. signal passes via D.C. blocking capacitor 20 to I.F. amplifier 22, and thence to demodulator 32 which comprises a discriminator circuit, the signal being frequency-modulated. The output from demodulator 32 is remodulated in modulator 35 as a vestigial side-band signal for application to a television receiver 38 of conventional type. A D.C. supply 28 for the masthead apparatus has added to it a tuning control voltage from source 29, in adder 25, the output of which is fed to line 13 via I.F. choke 23. In the masthead apparatus the combined supply voltage and tuning voltage is applied over I.F. choke 14 to the series combination of resistor 15, voltagestabilizing diode 16, which has a voltage drop equal to the supply voltage, and temperaturecompensating diode 17. The voltage drop across diodes 16, 17 is applied to the base of a transistor 19, the collector of which is connected to the join of choke 14 and resistor 15. A voltage having the value of the required supply voltage is obtained from the emitter of transistor 19 and is applied to the frequency changer 4 and oscillator 8. A voltage equal to the desired control voltage is obtained from the collector of transistor 19 by means of voltagestabilizing diode 18, which has a voltage drop equal to the value of the supply voltage, and is applied to control the varactor diode of oscillator 8. The Specification refers to an alternative arrangement in which the masthead apparatus comprises a pre-amplifier and the control voltage is used for automatic gain control.
Patent GB-741450-A (GB)
Title: Improvements in or relating to methods of and apparatus for bending glass tubing
IPC: C03B23/06
Filed: 1953-07-23
Abstract: 741,450. Bending glass tubing. GENERAL ELECTRIC CO., Ltd., and HAINES, E. M. July 22. 1954 [July 23, 1953], No. 20500/53. Class 56 For bending into arcuate or circular shape a length of glass tubing, particularly the envelope of a tubular electric discharge lamp, the tubing 2 is heated in ovens 3, 4, to a plastic condition and its elongation sets into operation an electric motor 32 which causes a carriage 27 to advance so that two axially-separable discs 23, 24 forming a drum 22 come into the path of the lower end of the tubing. The tubing becomes automatically latched to both discs in the annular periphal groove formed between them. The drum is now rotated about a stationary axis and the holder 10 for the upper end of the tubing is simultaneously lowered, by mechanism operated by the same motor, so that the tubing wraps itself -round the drum. During this action inert gas at increased pressure is fed into the tubing to maintain its circular cross-section. When the drum has rotated through nearly 360 degrees the top end of the tubing becomes released from the holder 10 and becomes automatically locked to both discs of the drum which is now thereupon retracted from the ovens. The bent tubing is now unlatched from the disc 24 and is carried solely by the disc 23 which is now removed from its carriage. The bent tubing is finally released from the disc 23 which is then repositioned on the carriage for the next operation.
Patent GB-294114-A (GB)
IPC: G01S1/68
Filed: 1928-07-16
Abstract: 294,114. Telefunken Ges. fiir Drahtlose Telegraphie. July 15, 1927, [Convention date]. Infra-red rays, signalling by.- Marine signals for indicating the position and course off a ship, or its type, and for denoting the port and starboard sides or the stern, are emitted by infra-red radiation of different frequency ranges, the signals being received by bolometers, thermocouples, radiometers, or the like. Preferably the infra-red source placed at o on the ship emits three different frequency-bands in the three sectors aob, boc, coa corresponding to port, starboard, and stern; whilst the beams are modulated or interrupted in different rhythm according to the type of ship; and are divided by time intervals into dot and dash signals to indicate the manoeuvring of the ship. The frequency bands are divided from the complete spectrum by filters or like devices. The modulation is effected by a rotary shutter or perforated disc; or by switching the current or fuel supply when electric or other lamps are used. For receiving the signals, separate receivers are provided for each frequency band, each being fitted with a filter or selector so as to respond only to its own band. The receivers are connected to mechanical or electrical resonance systems for indicating the particular modulation; and separate receivers, tuned to different modulation frequencies, may be used for responding to signals from sailing and steam ships respectively. The receivers may be directional and rotatable in azimuth. They may be connected to lamp indicators of different colours giving the usual navigating indications. The Specification as open to inspection under Sect. 91 (3) (a) refers also to a system in which the different emission sectors are characterized by different modulation frequencies. This subject-matter does not appear in the Specification as accepted.
Patent GB-573134-A (GB)
Title: Improvements in or relating to curtain fittings
IPC: A47H1/102
Filed: 1943-12-09
Abstract: 573,134. Clip and like brackets. DALZELL, C., and HYSLOP, A. C. Dec. 9, 1943, No. 20574. [Class 52 (v)] A curtain rod holder comprises a tubular socket a adapted to receive an end of a curtain rod b and a two-part band clip c, c<1> adapted for connection to a bed post one part c of the band clip being rigidly secured to the socket while the parts c, c' are secured together by bolts d passing through lateral aligned wings. The socket a may be closed at one end by the metal plate f brazed to the socket a and to the fixed clip part c or as in the modification shown in Fig. 7 the socket a may be open ended and the rigidity of its connection to the clip part c increased by plates j. In a second modification shown in Fig. 3, a second tubular socket h is disposed at right angles to the socket a and is brazed thereto a pin g acting as a stop for the curtain rod b.
Patent GB-148578-A (GB)
Title: Improvements in and relating to electric induction furnaces
IPC: H05B6/18
Filed: 1920-07-10
Abstract: 148,578. Grundh÷fer, W. Jan. 21, 1918, [Convention date]. Void [Published under Sect. 91 of the Act]. Indicators.-In order to indicate when a furnace lining is wearing so thin that there is danger of an eruption of molten metal, narrow tubes 6 are partly embedded in the lining at small distances apart, say 100 mm. The tubes may be of iron, and may be about 50-60 mm. from a cooling jacket 4. Melting of the tubes by contact with the charge when the lining is worn is ascertained by inspection or by insertion of a wire.
Patent GB-937229-A (GB)
Title: Improvements in and relating to control electric switch devices chiefly for use in mines and the like
IPC: H01H13/02
Filed: 1960-06-11
Abstract: 937,229. Press-button retractive switches; switches held set and freed mechanically. J. DAVIS & SON (DERBY) Ltd., and W. B. DAVIS. June 9, 1961 [June 11, 1960; Dec. 30, 1960], Nos. 20623/60 and 44696/60. Class 38 (5). A switch assembly comprises a combination of latchable and non-latchable retractive switches which may be operated by respective press-buttons or alternatively by a pull-wire acting on a separate common actuator. The latchable switch is optionally latched and unlatched by rotation of its press-button when in the depressed condition, or unavoidably latched when operated by the pull-wire and then unlatched by a separate manual release. A split housing 10 (of which only one part is shown) carries two spring-loaded buttons 15 and 19 acting respectively on leaf spring actuator arms 14 and 18 of switches 12 and 13, the arm 18 simultaneously actuating two switches 13 mounted as shown. By means of a central rib 19a, the button 19 may be rotated after depression, whereupon a pin 30 (which normally moves in a recess 31) engages the housing 10 (as shown in Fig. 5) to prevent button 19 retracting until rotated back again. A pull-wire (not shown) is attached to spring-loaded rod 25 which it can move to the right causing two pins 27, 28 thereon to engage arms 14 and 18 respectively. On release of the pull wire, arm 14 and thus switch 11 restores, but the arm 18 is retained by a latch 35. To restore the switches 13 the button 19 must be depressed when it moves latch 35 aside and on release allows the arm 18 to rise with it. An indicator lamp 37 is provided as shown and is connected to one of the switches 13 to indicate the latched or unlatched condition of these switches.
Patent GB-625680-A (GB)
Title: Improvements in and relating to core and moulding sands
IPC: B22C1/22
Filed: 1946-07-11
Abstract: 625,680. Mould and core materials. SOC. L'IMPREGNATION. July 11, 1946, No. 20722. Convention date, Jan. 24, 1940. [Class 83 (i)] Foundry moulding sand is agglomerated with synthetic resin made from amylaceous material, e.g. as described in Specification 624,437, [Group IV (a)], 3 to 5 per cent, or a mixture of the resin with drying and non- drying oils, 2 to 3 per cent, may be used. Preferably 75 kilograms of resin made as described in the Specification referred to is mixed with 23 of drying oil and 2 of non- drying oil.
Patent GB-148918-A (GB)
Title: Improvements in electric advertising signs
IPC: H01K7/04
Filed: 1920-07-10
Abstract: 148,918. Fehler, O. June 6, 1918, [Convention date]. Filaments, supports for; filaments; repairing; bulbs; residual gases.-Incandescent electric lamps, of the type in which filaments are shaped to form letters, numerals, sketches, &c., are fitted with numerous guide hooks disposed without reference to any particular design and round which the filament is wound in any desired configuration. Fig. 2 shows filaments, with separate leading-in wires d, passed round hooks c to form numerals. Fig. 3 shows a box form of lamp having glass plates h placed side by side, above, or behind one another and carrying filament-supporting hooks a. Reinforcing members e and baffles k, l, to shield the filaments when air is admitted to the lamp for the purpose of changing the filaments, are provided. Parts of the filament which are required to be non-incandescent are enclosed in air-filled glass tubes. In a modification the filaments are arranged on the hooks in the form of lines, gratings, or nets, and are viewed through stencils which can be changed.
Patent GB-1211977-A (GB)
Title: Turntable spindle for record-changer
IPC: G11B17/16
Filed: 1969-04-23
Abstract: 1,211,977. Turntable spindle. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 23 April, 1969 [26 April, 1968], No. 20744/69. Heading G5R. In a turntable spindle for an automatic record changer, the actuating arm 2, which carries record support shelf 5, is extended to form the upper part 3 of the spindle and this is provided with spring-loaded fingers 7 which bear downwardly on and stabilize the record . stack. The fingers 7 move into the body of the part 3 of the spindle when this is lifted to allow the records to be loaded. .