baber/WOPTO huggingface dataset:
Patent GB-1147505-A (GB)
Title: Pushbutton-actuated overload circuit breaker
IPC: H01H73/04
Filed: 1967-11-06
Abstract: 1,147,505. Automatic circuit breakers. ELLENBERGER & POENSGEN G.m.b.H. 6 Nov., 1967 [10 Nov., 1966], No. 50408/67. Heading H1N. The push-button operator 34 of an overload switch is coupled to the contact bridge 16 by a pair of links 27, 29 pivoted together at 28 on the button and contact bridge at 30, 26 respectively; the link 29 has an arm 29<SP>1</SP> normally latched by a half shaft 44 rotatable by the overload mechanism and in the on position of the switch pivot pin 30 is latched by a pawl 41 pivoted at 40 to a fixed frame and attached to the link 27 by a spring 42. On overload, bimetals 20 act through a lever 46 or an electromagnet 51 acts through a lever 45 to rotate shaft 44 releasing arm 29<SP>1</SP> so that a spring 54 collapses the linkage 27, 29 to open contacts 14-18; the tension in spring 42 is thus released and pawl 41 releases pin 30 allowing the push button to move out of the case. The switch is reset by pushing button 34; the link 29 pivots about the shaft 44 to straighten the linkage until pawl 41 relatches pin 30. Manual release is by pulling button 34 when a projection 43 on the pushbutton engages and releases the pawl 41. The bimetals 20 of three phases act on lever 46 through levers 61 pivoted on a sliding plate 56 which may co-operate with a temperature compensating bimetal (not shown). The arrangement causes an overload in one phase to trip the switch more quickly than a balanced overload. Coils (11) of each phase (Fig. 5, not shown) are wound on a common core 53 cooperating with a single tripping armature 50. The casing 1 of the switch is formed with an external recess 69 in which an indicating switch can be located, its operating rod extending through an opening 70 to engage the member 21 carrying the contact bridges 16.
Patent GB-1382910-A (GB)
Title: Air distribution apparatus
IPC: F24F13/02
Filed: 1972-11-01
Abstract: 1382910 Silencers TRANE CO 1 Nov 1972 [1 Nov 1971] 50431/72 Heading F1B [Also in Division F4] Ventilating air is brought to a room by a ceiling unit having an air-receiving portion 11 having an air inlet 13 and an air outlet 17 and containing a rotary damper 25 to vary the volume of air passing through, and perforated baffles 22, 26 on each side of the damper. The air is discharged into the room through a diffuser 12 having outlet slots 18 directing the air across the ceiling. A third baffle 30 may be provided in the outlet 17. Other shapes of baffle 26 are described Figs. 5 and 6 (not shown) layers of sound-absorbing material 15 are applied to the inside surfaces.
Patent GB-1129531-A (GB)
Title: Improvements in and relating to semiconductor devices
Inventor: NASSIBIAN ARMENAG GARABED
IPC: H01L29/167
Filed: 1964-12-16
Abstract: 1,129,531. Semi-conductor devices. ASSOCIATED SEMICONDUCTOR MFRS. Ltd. 18 Nov., 1965 [16 Dec., 1964], No. 51202/64. Heading H1K. Gold is introduced into an oxygen-rich region of a silicon body to compensate the donor states produced by the oxygen. An oxygen-rich region is defined as one in which oxygen can be detected by an infra-red detector using a wavelength of 9À1Á and the lower limit of detection is stated to be 2x10<SP>17</SP> atoms cm<SP>-3</SP>. The oxygen-rich region is produced during normal thermal oxidation of the surface. A metal-oxide-semi-conductor capacitor (surface varactor diode), Fig. 1 (not shown), is produced from a wafer (1) of P-type silicon by forming an oxide layer (2) on one surface by thermal oxidation, evaporating gold on to the unoxidized surface, diffusing the gold into the wafer in a nitrogen atmosphere, and applying an ohmic contact (3) to the wafer and an aluminium electrode (4) to the surface of the oxide layer. The resultant device exhibits a sharper but smaller change in capacitance at a lower voltage than a similar device produced without the gold diffusion, Fig. 4 (not shown). An insulated gate field-effect transistor, Fig. 2 (not shown), is produced by diffusing N+ type source and drain regions (8, 9) into a P-type wafer (7), applying ohmic contacts (12, 13) to these regions and a conductive gate electrode (11) to the silicon dioxide layer (10), and evaporating a length of gold wire on to the surface of the body and heating in a nitrogen atmosphere to diffuse-in the gold. The gold diffusion reduces or removes inversion and enhancement layers in P-type and N-type devices respectively, shifting the characteristics so that the normally negative cut-off voltage is reduced to substantially zero or even made positive, Fig. 5 (not shown). The insulating layer may contain a lead oxide or titanium dioxide. An NPN junction transistor, Fig. 3 (not shown), is produced by diffusing P-type base region (15) and N-type emitter region (16) into an N-type silicon wafer (14) through windows in an oxide layer (17). Ohmic contacts (18, 19, 20) are applied and gold is diffused into the wafer. A method of introducing gold into a silicon body comprises floating the body on a molten gold-silicon alloy layer. The gold-silicon layer is produced by polishing and cleaning a silicon disc, depositing a layer of gold, heating to form a molten alloy layer, cooling the disc rapidly to solidify the layer, and then placing the floating body on the layer and reheating to melt the alloy.
Patent GB-1529827-A (GB)
Title: Method and apparatus for fan folding sheet material
IPC: B65H45/22
Filed: 1975-12-15
Abstract: 1529827 Folding R A JONES & CO Inc 15 Dec 1975 [23 Dec 1974] 51305/75 Heading B8R A web 10 is folded longitudinally into zig-zag formation by passage over a folding plate 18 comprising a number of triangular sections 30 whose bases 31 form part of a polygon whose inscribed circle is centred on the nip line 21 of crease-defining rollers 20. Gaps 32 between the sections permit portions of the web to be drawn downwards to form the lower folds of the zig-zag. A guiding section 26 of the plate is formed from further sections defined by further polygons where inscribed circles of radii R2 and R3 are all centred at 21. Each upstream polygon has half the number of sides of the immediately succeeding downstream polygon. The polygons may have non-uniform side lengths to provide non-uniform zig-zag panel widths (Figs. 9-13, not shown).
Patent GB-1452914-A (GB)
Title: Strain limited clamping devices
IPC: F16L23/036
Filed: 1973-11-06
Abstract: 1452914 Clamps CATERPILLAR TRACTOR GO 6 Nov 1973 [17 Nov 1972] 51506/73 Heading E2B [Also in Division F2] A device for clamping an object against a support is adapted to grip the object and has stops which are initially spaced from the support when the object is contacting the latter and the device is in gripping relation with the object and which abut the support to limit separation of the device during clamping of the object to the support. As shown, a split flange 32 for holding a conduit end fitting 22 against a body 12 is counterbored at 40 and abuts the end fitting at 26, 42. Elongate stops 56, 58 on the two halves of the flange are initially spaced from the surface 16 of the body when the end fitting is placed in abutment with that surface and the flange halves are positioned on the end fitting, but upon tightening bolts 50 to the recommended torque value the flange deforms sufficiently to bring the stops into abutment with surface 16.
Patent GB-1525507-A (GB)
Title: Textile printing process
IPC: G03F3/04
Filed: 1975-12-17
Abstract: 1525507 Printing on textiles; preparation of plates F P LICENSING CO Inc 17 Dec 1975 [18 Dec 1974] 51640/75 Heading B6C  In a process for multi-colour printing on textiles which involves the production of colourseparated and screened positives from an original, photoengraving of lithographic plates using the positives, superimposing colour images from each plate on to a transfer medium using an offset press and transferring the superimposed images on to fabric under heat, the effect of each different colour expanding or diffusing into the fabric by different amounts characteristic of the dye used is compensated for by making the screened positives out-of-balance, i.e. by regulating the exposure and/or development 'to provide different dot sizes or frequencies. In a preferred embodiment, separate colour printing plates each carrying a dot pattern of reduced intensity are mounted on plate cylinders 18, 20, 22, 24 co-operating with offset cylinders 26, 28, 30, 32 and a single impression cylinder 34 around which transfer web 44 is fed. The printed web 44 is passed to a rotary heat press (54), Fig. 3 (not shown) together with the fabric (48) to be printed. A proof-sampling unit comprising a travelling flat-bed press 56 can be incorporated.
Patent GB-1530319-A (GB)
Title: Support assembly to support a load upon a vehicle chassis
IPC: B60P3/07
Filed: 1975-12-17
Abstract: 1530319 Load supports on vehicles H T GARGOUR 17 Dec 1975 [6 March 1975 15 May 1975 17 May 1975 20 May 1975] 51669/75 Heading B7B A support for carrying a vehicle or container on the longitudinal chassis members 4 of a vehicle comprises a cross member 2 adapted to be adjustably mounted on the longitudinal members 4 and having means for retaining the load in position. The cross-member is adjustably mounted by means of slots 2c and co-operating fastening means 5 or by means of a series of apertures. The retaining means comprise flanges 2a which are arcuate, angle-shaped, prismatic or tubular members or comprise wire cables stretched between angle members at the ends of the support The retaining means may be adjustably mounted on the support members.
Patent GB-1433584-A (GB)
Title: Delta1-1-azacycloalkene-2-carboxylic acids
IPC: B65B9/08
Filed: 1974-11-29
Abstract: 1433584 #<SP>1</SP>-1-Azacycloalkene-2-carboxylic acids BAYER AG 29 Nov 1974 [1 Dec 1973] 51799/74 Heading C2C A process for the preparation of a #<SP>1</SP>-1- azacycloalkene-2-carboxylic acid of the formula wherein R<SP>1</SP> and R<SP>2</SP> are hydrogen, alkyl, cycloalkyl, aralkyl or aryl, and n is 3, 4 or 5, and salts thereof, are prepared by hydrolysing, in the presence of a base, a compound of the formula wherein X is halogen, or a salt thereof with a hydrogen halide. The process is suitably carried out at a temperature of from 20 to 180 C. in the presence of a solvent.
Patent GB-518435-A (GB)
Abstract: 518,435. Refrigerating TEXACO DEVELOPMENT CORPORATION. Aug. 26, 1938, No. 25128. Convention date, Aug. 26, 1937. [Class 29] [Also in Group III] Air or gas is cooled and dried by passage through sprays of a cold hygroscopic liquid selected from the group of glycols or glycol ethers, and particularly ethylene glycol, diethylene glycol, propylene glycol or carbitol, and then over the surfaces of a refrigerating evaporator which is sprayed with the same liquid to prevent formation of rime, the liquid being continuously withdrawn and concentrated by heat and returned to the spraying devices. A plant for chilling and drying air for a room is shown in Fig. 2, make-up air to replace air discharged from the room is cooled in a plant shown in Fig. 1, in which air is delivered by a fan 12 to a heat insulated chamber 10 and after passing through a filter 18 is washed by water sprays 20 in section A, cooled in section B by sprays of water cooled by a refrigerating evaporator 28, further sprayed at 34 in section C by ethylene glycol, and in section D cooled by refrigerating coils 44 whch are sprayed with glycol from pipes 42. The air thus dried and cooled is admitted at 48 to a chamber 60, Fig. 2, having refrigerating coils 75, 82 and alcohol sprays 70, 80 over which the air is circulated by a fan 66. The alcohol is reconcentrated in a system including a trickling tower 112 and steam heated vessel 114, and is circulated by a pump 130 to a storage vessel 144 from which the sprays are supplied. The supply of cooling-water to a coil 156 at the top of the tower is controlled by a thermostatic valve 170 or by a manual valve 174 in a by-pass, and the water vapour leaving the tower is passed through a cooler 162 and condenser 164. The level in the still 114 is controlled by a float valve 118 which returns liquid to the still from the pump delivery pipe 132 when the level is low. The Specification as open to inspection under Sect. 91 comprises also a chamber for freezing goods by air cooled by the above process, as described in Specification 518,660. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1537466-A (GB)
Title: Thermosetting resin injection moulding machine and method
IPC: B29C48/67
Filed: 1975-12-18
Abstract: 1537466 Injection moulding thermosetting resins SUMITOMO BAKELITE CO Ltd 18 Dec 1975 [21 Dec 1974] 51853/75 Heading B5A An injection moulding device for use with thermosetting resin comprises a screw rotatably located within a barrel, a zone of reduced width between the screw and the barrel being located at the injection end of the device. The width of the zone is from 0À6 to 8 mm. In this zone, the material is subjected to a kneading and shearing action and is brought to the desired temperature, this in turn preventing overheating and perhaps solidification of the material within the barrel proper, and also giving articles of a more uniform nature. The zone of reduced width may be effected either by protuberances on the screw or on the barrel. In a first embodiment (see Fig. 2A) the end of the screw 1 is provided with an enlarged region 4 having two sets of helical grooves 5, 6, one set opening to the front face of the enlarged region and the other set opening to the rear face. In a second embodiment (see Fig. 3A) the enlarged region has a single set of helical grooves 8 running from the rear to the front face. In a variation of this embodiment (see Fig. 6A, not shown) the grooves 8 are of opposite hand to those in the embodiment of Fig. 3A. In a third embodiment (see Fig. 4A, not shown), the enlarged section of the screw has a smooth surface. In a fourth embodiment (see Fig. 5A, not shown) the enlarged section of the screw has a series of cylindrical short protuberances
Patent GB-1179209-A (GB)
Title: Improvements in or relating to Compelled Signalling Telecommunications Systems.
IPC: H04Q1/453
Filed: 1968-11-05
Abstract: 1,179,209. Automatic exchange systems. SIEMENS A.G. 5 Nov., 1968 [9 Nov., 1967], No. 52282/68. Heading H4K. A compelled signalling system sends a digit code and a repeat signal alternately when the digit is repeated successively, a receiving exchange sending back a start signal in response to a first received signal, the start signal having the effect, when reverted in response to reception of a repeat signal as a first received signal, of eliciting the digit code of the signal to which the repeat signal related. The system has application to working over a tandem exchange T in which the tandem exchange can connect the sending exchange U forward to another exchange Z, the exchange Z being connected in such a code sequence sent from U as to receive as a first signal a repeat signal. Exchange Z reverts a start signal and this is interpreted at exchange U as requiring the transmission of the code to which the repeat signal related. The codes are 2-out-of-6 multi-frequency codes.
Patent GB-1071221-A (GB)
Title: Equaliser for fm transmission systems
IPC: H03C3/08
Filed: 1965-12-09
Abstract: 1,071,221. Frequency modulation systems; radio signalling. INTERNATIONAL STANDARD ELECTRIC CORPORATION. Dec. 9, 1965 [Dec. 12, 1964]. No. 52285/65. Headings H3R and H4L. In a frequency modulation system, e.g. a repeater of a microwave transmission system, comprising a filter and a non-linear circuit element, the filter having a phase-frequency characteristic such as to produce amplitude modulation; an equalizer circuit is included between the filter and the non-linear circuit, and has an amplitude-frequency characteristic tending to oppose the amplitude modulation produced by the filter. In one example, Fig. 3 (not shown), the equalizer comprises a series tuned circuit (L1, C1, R1) and a parallel tuned circuit (L2, C2) coupled to the signal path through respective potentiometers (P1 and P2) which may be semi-conductors. An I.F. amplifier chain in a repeater may include a group-delay equalizer followed by an amplitudebroadener, which flattens out the amplitudefrequency characteristic of the I.F. amplifier, followed by the equalizer circuit described above which feeds an amplitude limiter followed by the last stage of the I.F. amplifier. The amplitude limiter would convert any amplitude modulation into phase modulation, but the former is eliminated by the equalizer circuit.
Patent GB-1248977-A (GB)
Title: Shock absorber
IPC: F16F1/373
Filed: 1968-11-08
Abstract: 1,248,977. Non-metallic springs. STAVEBNI STROJIRENSTVI A LEHKA PREFABRIKACE. 8 Nov., 1968 [9 Nov., 1967], No. 53090/68. Heading F2S. A shock-absorber consists of a spring element of the form shown made of plastics material such as polyamide.
Patent GB-1444568-A (GB)
Title: Recorder unit
IPC: B41J2/135
Filed: 1973-11-26
Abstract: 1444568 Ink droplet printers RESEARCH & DEVELOPMENT LABORATORIES OF OHNO CO Ltd 26 Nov 1973 [24 Nov 1972 (3)] 54826/73 Headings B6F and B6P An ink droplet printer comprises a nozzle 3, an electrode plate 5 having a hole therein coaxial with the nozzle 3, and a ring 9 coaxial with the nozzle and located either around the exit end of the nozzle 3 or between the nozzle and the electrode plate, an electrical potential being applied to the ring to control the flow of ink through the hole in the plate 5 on to a record medium 6 behind the plate 5. The potential applied to the ring 9 may be varied by a photoconductive switching element 12. A plurality of recording heads may be located side-by-side to record characters on a moving strip, the recording heads each being shielded by a conductive cylinder. The nozzle outlet is preferably rounded as at 20, and the rounded outer surface coated in liquid-repellent material. The nozzle may be made of stainless steel, copper, brass, iron, or conductive glass or plastics.
Patent GB-1240180-A (GB)
Title: Improvements in leak clamp assemblies
Inventor: HOWARD DAVID CAMPBELL
IPC: F16B21/14
Filed: 1968-11-20
Abstract: 1,240,180. Clamps. GAS COUNCIL. 20 Feb., 1970 [20 Nov., 1969], No. 55089/68. Heading E2B. [Also in Division F2] A leak clamp assembly comprises a split resilient sealing ring and a backing ring 2 in sections each section having a bifurcated apertured portion with lugs 15 and 16 between which an apertured lug 11 on one end of an adjacent section engages, the sections being secured by bolts 4 having tapering heads 29. Each section has an additional apertured lug 19 between the ends. The bolts extend through holes in a similar anchor ring 3 angularly displaced so that each lug 19 aligns with one of the bifurcated lug connections on the anchor ring. By tightening the bolts the diameter of the rings decreases as the tapering heads enter the elongated apertures in the sections and the sealing ring beneath the ring 2 effects a seal between pipe sections 31 and 32. The sections of the ring 2 have an inclined inner face which contacts an inclined face of an outer neoprene ring which is in contact with an inner harder ring, these rings comprise the sealing ring.
Patent GB-1431330-A (GB)
Title: Arrangement for driving the screws of an extruder for thermo plastic resins
IPC: B29C48/03
Filed: 1973-11-29
Abstract: 1431330 Extruder driving gear A BENADI 29 Nov 1973 [5 Dec 1972] 55498/73 Heading B5A [Also in Division F2] In an extruder, for thermoplastics material, comprising a pair of co-rotating intermeshing screws, the screw shafts 12, 13 are rotated by a pair of symmetrically arranged drive-shafts 5, 6, each of which rotates both shafts 12, 13, by engagement of each of straight toothed gears 8, 9, on the shafts 5, 6, with both of straight toothed gears 10, 11, respectively, carried by the shafts 12, 13. The shafts 5, 6 are rotated from a single input shaft 1, via helical toothed gears 2, and 3, 4. To avoid unbalanced torque transmission from the shafts 5, 6 arising from play between the gears, the play between gears 2, and 3, 4 is taken up by axial thrust bearings 14, 15, which are each axially adjustable by screws 16, 17 to displace the shafts 5, 6 axially without rotation. The gearing provides for the transmission of a higher torque to the shafts 12, 13, than obtained by a single drive-shaft. The play between the gears 8, 10, 11 and 9 is taken up by locking the shafts 1, 12 and 13, and axially displacing the bearings 14, 15 to cause rotation of the shafts 5, 6 by reaction with the gear 2. In the Fig. 4 embodiment, the axial thrust bearings 14 bear on each shaft 5 through cup springs 20, the displacement under load of which indicates the torque transmitted by each shaft and is measurable by the distance "A", to facilitate balancing of the torque transmitted to each screw.
Patent GB-1159351-A (GB)
Title: High Speed Trailing Edge Bistable Multivibrator
IPC: H03K3/013
Filed: 1966-12-13
Abstract: 1,159,351. Transistor bi-stable circuit. CORNING GLASS WORKS. 13 Dec., 1966 [15 Dec., 1965], No. 55682/66. Heading H3T. A trigger circuit for a bi-stable circuit Q1, Q2 comprises a switching means Q7 which is normally conductive and is turned off by the leading edge of a trigger pulse and another switching means Q5 which is maintained off during the leading edge of the trigger pulse and is switched on by the lagging edge for a period sufficient to switch the state of the bi-stable circuit. Coincidence of a clock pulse at C and a set pulse at S (both low level signals) switches off transistor QA and switches on transistor Qo to cause the level of the signal at IN to fall. Transistor Q7 is thus switched off, but transistor Q5 is prevented from conducting by the low level signal fed to its base via diode CR1. When coincidence no longer exists between the set and clock pulses Q A  switches on and Qo switches off and the voltage at IN rises. The circuit parameters are so arranged that the base of transistor Q5 rises faster than that of Q7 and Q5 becomes conductive to provide a trigger pulse at the base of Q1 to switch its state. When the base potential of Q7 rises sufficiently Q7 switches on to turn off Q5 again. A similar triggering circuit 16, 18 is provided on the reset input to the bi-stable circuit.
Patent GB-1393264-A (GB)
Title: Semiconductor memory apparatus
IPC: H01L21/8229
Filed: 1972-12-04
Abstract: 1393264 Transistor binary storage cells WESTERN ELECTRIC CO Inc 4 Dec 1972 [9 Dec 1971] 55826/72 Heading H3T The binary cell shown in Fig. 2, stores 0 or 1 at the junction 34 of the interelectrode capacitances C1, C2, and T32 acts to discharge the junction 34, when required. Supposing a 1 to be stored at 34, being a slightly positive level of about + 1 volt (Fig. 5, not shown), reading is effected by a positive pulse at time t 1  (Fig. 3, not shown), on the word line 16 . This raises T30 base high enough to cause conduction of a substantial current pulse (Fig. 6, not shown), which is detected externally (26, Fig. 1, not shown). A "0" is now stored by the falling edge of the word line pulse, which takes junction 34 down to about -3À6 volts for an 8 volt swing on the word line. T30 thus turns off, and with both transistors off the -3À6 volts is stored at 34 (Fig. 5, not shown). When word line 16 goes up to + 1 volt again (V1, Fig. 3, not shown), junction 34 rises slightly but nothing else happens. When the word line again goes up to + 8 volts (V2) to read the cell contents at time t 4 , junction 34 is not this time carried far enough positive to turn on T30, and no current is detected- (at 26). The "0" level of -3À6 volts is restored at 34 when the word line returns to zero level at time t 5 . To write a 1, however, the digit line 14 is taken to about + 1 volt (Fig. 4, not shown), at time t 5  while the word line 16 remains at zero. This turns on T32 which thus charges junction 34 to nearly the potential at 14, namely + 1 volt, which is the 1 condition. Conditions are now as they were at t 0  (Figs. 3 to 5, not shown). A matrix of the cells is integrated.
Patent GB-561147-A (GB)
Abstract: 561,147. Solid fuel. THOMPSON, J. Oct. 1, 1942, No. 13781. [Class 50] A fuel suitable for use when put on to an existing fire is made by forming a paste with water from the ashes and cinders of a house fire.