baber/WOPTO huggingface dataset:
Patent GB-693260-A (GB)
Title: Improvements in or relating to paper-working, printing and like machines
IPC: B65H7/16
Filed: 1951-05-11
Abstract: 693,260. Sheet feeding and delivery apparatus; printing-machines. WINKLER, R., and DUNNEBIER, K. May 11, 1951 [June 29, 1950], No. 11207/51. Classes 100(i) and 100(ii) [Also in Group XXIX] Relates to apparatus operating on paper sheets and comprising a series of co-operating suction rollers II-VII feeding sheets from a stack E through the apparatus to a delivery pile A. To prevent excessive intake of air through the unoccupied rollers at the commencement and completion of feed, the roller orifices 3 are successively connected to the suction duct S through a valve-chamber Z<SP>1</SP> containing a spring-loaded piston 4, 4<SP>1</SP>, displaceable by the suction prevailing in the system to uncover the succeeding orifice connection as each roller becomes occupied by a sheet, the valve Z' being automatically disabled at the end of the feed and replaced by a second valve Z<SP>2</SP>, in parallel, which closes the orifices in the same order as each roller becomes free. The sheets are separated from the stack by a reciprocating suction pad I which passes it between a roller 1 and the first suction roller II. At the commencement of feed the pistons 4 and 5 are held by the springs 6, 6<SP>1</SP> in a position covering the orifice connections II<SP>1</SP>-VII<SP>1</SP> so that suction is not applied to the rollers. Fresh air can, however, enter the system through the pad I, but when this is covered by the first sheet, the increased vacuum in the duct S acts through a port K<SP>1</SP> to draw the piston down to uncover the port II<SP>1</SP>: as this port becomes closed by the sheet the piston moves down a further stage, and so on until all the rollers carry sheets. When this occurs, the duct VII<SP>11</SP> between the valves Z<SP>1</SP> and Z<SP>2</SP> applies suction to the piston 5 to draw it down in a single movement. When the pile E is depleted, the pad I admits air and the piston 4 immediately rises to close all the ports II<SP>1</SP>-VII<SP>1</SP> in the valve Z<SP>1</SP> which thereby becomes inoperative. The piston 5 only rises, step-by-step, to cover each port II<SP>1</SP>-VII<SP>1</SP> in the valve Z<SP>2</SP>, and since these ports are in the reverse order to those in Z<SP>1</SP>, the rollers are disconnected from the main suction duct S in the order that they become freed of the sheets. The invention is applied to an envelope-making machine, the operations of printing, making an aperture and applying a transparent window strip to the aperture being effected on the blanks as they pass over the rollers II-VII.
Patent GB-1124183-A (GB)
Title: An impulse transformer for electrospark machining
IPC: H01F30/16
Filed: 1966-03-15
Abstract: 1,124,183. Electro erosion. V. L. KRAVCHENKO, and N. G. SHUBIN. 15 March, 1966, No. 11247/66. Heading B3V. [Also in Division H1] An impulse transformer for electrospark machining has a multi-turn primary winding and a single-turn secondary and, together with a tool holder and support for the workpiece, is so located in a vessel containing liquid that the liquid acts both as a coolant and as the working medium. In the arrangement shown, the tool 15 is connected through bus-bars 16 and the vessel 13 to a secondary consisting of top plate 7, casing 7<SP>111</SP> and inner bushing 7<SP>1</SP> whose upper end 711 supports the workpiece 9. A toroidal primary winding 3 on a core 1 of stacked ferrite rings is located in the casing 7111 and is insulated by epoxide compound 2, 10. A socket 6, soldered to the primary 3, receives a plug 4 connected to the high voltage lead 5. The liquid is pumped through an insulating bushing 17 and flow-regulating shutter 33 to the working region and is extracted through channels 18 and drain 19. In a modification (Fig. 2, not shown) the workpiece support is in two parts with co-operating spherical surfaces for alignment and the bus-bars (30) are connected directly to the top plate (7) of the secondary. The primary assembly is mounted on ebonite or fluorine plastics supports (22), (23) within the secondary easing (7<SP>111</SP>) and the high voltage lead (26) is led into the vessel in a pipe (27) which also acts as a liquid overflow. Separate valves (31), (32) control liquid level and draining.
Patent GB-954605-A (GB)
Title: Electromagnet switching devices with sealed magnetic contacts
IPC: H01F1/04
Filed: 1962-03-23
Abstract: 954,605. Electromagnetic switches. STANDARD TELEPHONES & CABLES Ltd. March 23, 1962 [March 24, 1961], No. 11248/62. Addition to 925,410. Heading H2B. The magnetic contact device of the parent Specification has one or more contacts permanently magnetized. Specifications 829,066, 907,519, 928,145 and 946,628 also are referred to.
Patent GB-672149-A (GB)
Title: Improvements in or relating to inter-exchange system
IPC: H04Q3/42
Filed: 1949-04-28
Abstract: 672,149. Automatic exchange systems. COMPAGNIE INDUSTRIELLE DES TELEPHONES. April 28, 1949 [April 28, 1948], No. 11314/49. Class 40 (iv). In a two-stage group selector a group of lines C is split between two secondary switches 7, 8 both of which are available to a primary switch 4. The switches 4, 7, 8 are controlled by markings from a register 6 which is connected by finders 2, 5 and is set by a calling party 1. Switches 7, 8 with free outlets in the group C are marked on primary switch 4 which seizes the first available secondary switch. If all the junctions connected to a secondary switch 7 or 8 are busy, a relay 17 or 16 removes the marking on switch 4. Switches 7, 8 also give access to groups B, D. Rectifiers 20 prevent interconnection of the marking wires.
Patent GB-1028430-A (GB)
Title: A circuit arrangement for producing signals of predetermined amplitude and duration,in dependence on pulse code modulated signals
IPC: H03K5/15
Filed: 1963-03-21
Abstract: 1,028,430. Transistor pulse shaping circuits. TELEFONAKTIEBOLAGET L. M. ERICSSON. March 21, 1963 [March 21, 1962], No. 11349/63. Heading H3T. [Also in Division G4] In a circuit for regenerating pulse code modulated signals, e.g. in a decoder, the seven-digit binary signal P1, Fig. 1 (not shown), is converted into parallel form in a tapped delay line FL whose respective outputs are connected via gates G1 to G7, controlled by timing pulses P2, P3, to electronic switches S1 to S7. The electronic switches provide pulses of constant amplitude and duration which are added in a resistance network RN in known manner to provide an analogue output. Fig. 2 shows details of the output of a portion K1, K2 of the delay lines FL. In the absence of pulses P1, P2, the diodes D1, D2 in the gate G1 are conducting so that point A is at zero potential and transistor T1, in a regenerative amplifier forming electronic switch S1 is blocked. When pulses P1, P2 occur simultaneously, the diodes D1, D2 are blocked, the 6 volts potential at point A causes transistor T1 to conduct and the regenerative feedback causes the potential at point A to fall and diode D3 to conduct. This causes an increase in the base current of transistor T1 and consequently an increase in the collector current providing an output signal at point C. To ensure that all output pulses have the same duration an inhibiting circuit H including a transistor T2 is controlled by pulses P3. In the absence of pulses P3 the transistor T2 and diode D4 are blocked and have no effect on the circuit S1. When a pulse P3 is fed to the base of the transistor T2 it will conduct and the resulting fall of potential at the collector will cause D4 to conduct and block transistor T1, the output pulses in all the circuits S1, S2 &c. ceasing simultaneously. A diode D5 in the collector circuit of transistor T1 eliminates the voltage peak which would arise due to the interruption of the current through the winding of transformer TR.
Patent GB-128039-A (GB)
Title: Improvements in and relating to Mechanical Signalling Apparatus.
Inventor: KEESEY JOHN ARTHUR
IPC: G08B9/08
Filed: 1918-07-11
Abstract: 128,039. Keesey, J. A. July 11, 1918. Mechanical telegraphs; bell signals.-A mechanical telegraph in which the indications are transmitted by chains engaging pulleys is provided with means for adjusting the pulleys so as to make the chains taut. In the form shown in Fig. 3, the ends of the chain 15 are brought round in opposite directions and attached to the two parts 13, 14 of the pulley, which parts 13, 14 are adjustable rotatably relatively to one another by a screw 19. 25 indicates the reply chain working on a wheel 24 and actuating an adjustable pointer 12. Teeth 35 on the pulley rock an escapement 33 carrying two gong hammers. A modified form of adjusting means is described comprising nuts and clamping collars on the pulley shaft. Fig. 7 shows an apparatus having a plurality of message-sending wheels 56, 57 and of message-receiving wheels 58, 59, the apparatus being duplicated so as to provide two different dials. The two operating handles 66, 68 provided at each end of this apparatus may be locked together by a sliding part 72 when it is desired to actuate both similarly. One gong 81 only is provided, sounded by each set of elements in the apparatus. The casing 47 is made with the top half removable for assembling, inspection, and adjustment.
Patent GB-482228-A (GB)
Title: Improvements in or relating to the valve mechanism and cylinder heads of internal combustion engines
IPC: F01L5/18
Filed: 1937-04-21
Abstract: 482,228. Valves ; valve gear. REEVES, A. L. April 21, 1937, No. 11388. Convention date, April 23, 1936. [Class 7 (vi)] Inlet and exhaust through a passage 13 with a single valve 18 are further controlled by a sleeve valve 40 having a port 57 cooperating with inlet and exhaust ports 56, 55 respectively. Another port 60 in the sleeve valve uncovers a sparking-plug 59. The sleeve valve may be reciprocated by a cam 33 on the same shaft as the cam actuating the valve 18, the cam 33 contacting with a roller 47 carried by a screw 45 connected to a flange 43 on the valve. A spring 51 presses the roller into contact with the cam. In a modification, the inlet and exhaust ports are at opposite sides of the cylinder head, and the sleeve valve is reciprocated by an eccentric. In another form, the sleeve valve is given an oscillatory motion about its axis.
Patent GB-375471-A (GB)
Title: Improvements in or relating to protecting shields particularly wind screens
IPC: B60J1/20
Filed: 1931-04-17
Abstract: 375,471. Wind deflectors for vehicles, cameras, microphones, &c. AERODYNAMIQUE INDUSTRIELLE, 1, Rue Yvart, Paris. April 17, 1931, No. 11467. Convention date, March 10. [Class 103 (ii).] Relates to protective shields for use in association with locomotive, aircraft or like windscreens, or for preventing dust &c. from being blown on to the lens of a camera or on to the object glass of a sighting-instrument, or for mounting in front of a microphone for preventing the impingement thereon of undesired air currents. and to eye-protecting screens for personal wear, the shield or screen being of the kind having a direct-vision aperture 1 transverse to or away from which an air current is produced by a main set of deflecting surfaces 3. According to the invention an auxiliary set of conical or like surfaces 2 is disposed in front of and diverging towards the aperture 1 so as to effect a reduction in the velocity of any air currents, dust &c. entering the narrow end of the cone &c., whereby the relative effect of the counter or protective air stream from the main deflectors 3 is increased. In one arrangement, Fig. 3, in which the main deflector 3 produces a protective stream across the opening 1, the resultant R of the pressures f<1>, f<2> due to the stream entering the cone 2 and to the counter stream respectively is directed along the discharge conduit 5, in which a suction effect may be induced, in the case of a locomotive, by connection to the furnace draught, or, in the case of an aeroplane, by arranging the conduit on the dorsal surface of a plane. For the purpose of melting any snow that may accumulate on the surface 3, the latter may be perforated and steam be introduced under pressure into a chamber 11 at the rear thereof. In an alternative construction, Fig. 6, suitable for use with cameras, the counter stream is directed away from the aperture 1 and the pressures f<3> counterbalance the pressure f<4> of the entering stream, so that the device as a whole constitutes an air-plug. In a further modification, Fig. 7, an eye-screen for personal wear is formed with an annular direct vision aperture 1 surrounding the main deflecting surfaces 3.
Patent GB-1099730-A (GB)
Title: Helicopter gearing
IPC: F16H1/22
Filed: 1966-03-16
Abstract: 1,099,730. Toothed gearing. J. WAGNER, [trading as JOSEF WAGNER]. March 16. 1966 [March 20, 1965], No. 11539/66. Heading F2Q. A helicopter rotor drive includes at least one input shaft 3 driving at least one rotor shaft 7 through a bevel pinion 5 meshing a crownwheel 6 on the shaft 7, the crownwheel being supported near the periphery of its untoothed side, at least in the region where the pinion 5 applies axial thrust to the crown-wheel, by a roller or plain bearing 9. As shown, coaxial rotor shafts 7, 7<SP>1</SP> are splined to the hubs 14, 141 of respective crown-wheels 6, 6<SP>1</SP>, each driven by its own bevel pinion 5, 5<SP>1</SP>, the parallel shafts 4, 4<SP>1</SP> thereof being driven through reduction gearing from the input shaft 3. An annular casing member 12 supports thrust bearings 9 for the crown-wheels 6, and roller bearings 11 in which run annular flanges 10 of the hubs 14. A thrust bearing 18 is located between radial flanges of the hub 14. Rotor lift forces are transmitted to the gear casing from the shaft 7 via a member 19, the hub 14, and the bearing 9, and from the shaft 7<SP>1</SP> via a bearing (not shown) in a part 21 secured to the casing.
Patent GB-377197-A (GB)
Title: Improvements in electric tumbler switches
IPC: H01H23/14
Filed: 1931-04-20
Abstract: 377,197. Tumbler switches. GERARD, W. G., Synagogue Place, Rundle Street, Adelaide, South Australia. April 20, 1931, No. 11602. [Class 38 (v).] The base 1 of a tumbler switch is made of moulded insulating material and the dolly (not shown) is pivoted on the inturned ends 4 of pins passing through holes in the base and secured by riveting or other means. A bridging contact member 10 comprises a U-shaped member having outwardly turned lugs engaging bearing recesses in the base. A dead-centre action is provided by a compression spring (not shown) mounted on a link between the lower end of the dolly and the contact member, the lower end of the link sliding in a hole in the lower part of the contact member. Projections 14 on the base serve as stops for the contact member and for extensions on the dolly.
Patent GB-946229-A (GB)
Title: Semiconductor devices and methods of making them
IPC: C30B31/18
Filed: 1960-04-01
Abstract: 946,229. Semi-conductor devices. RADIO CORPORATION OF AMERICA. April 1, 1960 [April 15, 1959], No. 11684/60. Heading H1K. A method of making a semi-conductor device comprises the steps of depositing a silicon oxide coating on the surface of a semi-conductor wafer by heating the wafer in the vapours of an organic siloxane compound at a temperature between the decomposition temperature of the compound and the melting point of the wafer, removing a predetermined portion of the oxide coating, and diffusing a significant impurity from vapour into the coating-free portion of the wafer. The coating is believed to be a mixture of silicon monoxide and silicon dioxide. In a preferred example, for making an NPN transistor, the surface zone of a wafer of N-type germanium is converted to P-type, as by being heated in a powder composed of 99.9% Ge- 0.1% In. The thickness of the wafer is halved by grinding and etching one face to remove the P-type layer therefrom. Fig. 1e shows a resulting N-type wafer, having a P-type region 11, coated with a silicon oxide layer 13 by being heated for 10-15 mins. at a temperature between 650‹ C. and 800‹ C., e.g. 700‹ C., in a quartz furnace containing ethyl triethoxsilane, argon being used as the carrier gas. An acid resist layer 14 is next applied, and a series of lines 15 are scribed in the resist layer. The wafer is then immersed in an etchant, e.g. hydrofluoric acid, which dissolves the portions of the oxide layer exposed by the lines 15, after which the resist layer is itself removed by a solvent such as carbon disulphide or triehlorethylene. The wafer is next heated in a donorimparting ambient, e.g. a powder composed of 95% Ge-5%As, for about 30 mins. at about 700‹ C., to produce N-type regions 16, Fig. 1g, beneath the parts of the surface from which the oxide coating has been removed. The remainder of the oxide coating is then etched away and the wafer is divided along planes a<SP>1</SP>-a<SP>1</SP>, b<SP>1</SP>-b<SP>1</SP>, &c. to produce individual transistor elements 20, Fig. 2, to which emitter, base and collector connections 22, 24, 26 are attached. Modifications.-The original wafer may be a III-V compound, e.g. a phosphide, arsenide or antimonide of aluminium, gallium or indium, and may be P-type. Antimony and phosphorous may be used as donors, and aluminium and gallium as acceptors. Instead of ethyl triethoxysilane, other siloxanes such as dimethyl diethoxysilane, tetra-ethoxysilane, amyl triethoxysilane, phenyl triethoxysilane, diphenyl diethoxysilane, and vinyl triethoxysilane may be decomposed to form the oxide coating. The acid resist technique may be replaced by a photo resist process, or predetermined portions of the oxide layer may be ground away. The invention is applicable to the making of PNP units, unipolar devices, diodes, tetrodes, and other multiple junction devices. Specification 832,740 is referred to.
Patent GB-1144320-A (GB)
Title: Improvements in entrained fluidized bed coating apparatus and method thereof
IPC: B01J8/18
Filed: 1967-03-13
Abstract: 1,144,320. Pyrolytic carbon; carbon coated thoria. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 13 March, 1967 [5 April, 1966], No. 11766/67. Heading C1A. [Also in Divisions C7, F4 and G6] Carbon is deposited on sol gel ThO 2  or UO 2  particles of 250-350 micron size forming the bed of a fluidized reactor (see Division F3-F4) heated externally to between 1745-2250‹ C.and using methane as the coating gas. Initially the apparatus is purged with argon or other inert gas which may be used to dilute the hydrocarbon.
Patent GB-1500840-A (GB)
Title: Decorative trim
IPC: B60J10/02
Filed: 1976-03-24
Abstract: 1500840 Trim strips AISIH SEIKI KK 24 March 1976 [25 April 1975] 11769/76 Heading B6G [Also in Divisions B5 and E1]. A decorative trim strip comprises a stainless steel strip 26 of uniform section reinforced on one side with a strip 27 of plastics material. The strip is located in a groove in strip 23. Alternatively, in Fig. 4 a trim (31) clips around a roof gutter (34).
Patent GB-254051-A (GB)
Title: Improvements in measuring taps
IPC: G01F11/44
Filed: 1925-05-07
Abstract: 254,051. Chambers, C. May 7, 1925. Fixed-chamber apparatus with several chambers.-Relates to a measuring tap of the kind having a plurality of measuring- chambers controlled by a single plug valve, and consists in that the measuring chambers are formed integrally, are separated by means of a partition and are provided with a single sight-glass. As shown, a semicircular casing 1 is divided by a partition 2 into two measuring-chambers 3, each of which has an inlet port 8 and a discharge port 9. The front of the measuring-chambers is closed by a common sight-glass 6 held in place by a ring 7. The plug cock 16 is tapered and is provided in its upper part with inlet ports 18, 19, Fig. 6, and an air vent 22, and in its lower part with a single discharge port 21, Fig. 7. The device is connected to a bottle by a shank 14 and cork washer 15. Specification 21754/11 is referred to.
Patent GB-634561-A (GB)
Title: Improvements in and relating to rotary compressors
IPC: F04D17/02
Filed: 1948-04-30
Abstract: 634,561. Air compressors. ENGLISH ELECTRIC CO., Ltd., HUGHES, J.O.P., MORRIS, C., and WOLFF, P. H. W. April 30, 1948, No. 11853. [Class 110(i)] The air-compressor.in a gas turbine plant comprises axial flow and centrifugal stages with casing parts 13, 14 split axially and enclosed within casing parts 12, 56, 56a which are not split axially. The compressor discharges through a circular assembly of diffusers 16 into a chamber surrounding the compressor. The rear wall of the centrifugal stage casing is sealed to the bearing housing 8 by a flexible diaphragm 2. The complete plant is described in Specification 634,554.
Patent GB-279721-A (GB)
Title: Improvements relating to motor-driven slicing machines
IPC: B26D1/143
Filed: 1927-05-04
Abstract: 279,721. Maatschappij tot Vervaardiging van Snijmachines Volgens van Berkel's Patent en van Andere Werktuigen, and Hoorn, J. van. May 4, 1927. Cutting slices in succession.-In a discknife reciprocating table machine, the knife is driven by an electric or other motor, and the carriage is driven from the knife through a slip-coupling whereby the operator may accelerate or retard the linear speed of the table without altering the rotational speed of the knife. The acceleration or retardation may be effected by grasping a handle on the table and assisting or resisting the reciprocating motion. As shown in Fig. 3, the shaft 18 which is driven by the chain 27 and sprocket 26 from the knife shaft and has a bevel 17 which drives the crank and connecting rod for the reciprocating table, carries one part 21 of a slip coupling, the other part 22 being secured to the sprocket 26, one or both parts 21, 22 being faced with friction material. The shaft 18 is journaled in a screwed bush 24 which is adjustable to vary the pressure of the spring 23 which keeps the parts 21, 22 in engagement. The crank shaft carries a flywheel. The bush 24 may be retracted to such an extent that the reciprocation of the table is effected entirely by hand. In a modification, the flywheel and the handle on the table are dispensed with, and an ordinary hand-wheel is provided which is used by the operator to assist or resist the motion of the table.
Patent GB-495641-A (GB)
Title: Improvements in lamp enclosures
IPC: F21S8/00
Filed: 1937-04-26
Abstract: 495,641. Illuminant enclosures ; incandescent electric lamps. BRITISH THOMSON-HOUSTON CO., Ltd. April 26, 1937, No. 11902. Convention date, April 25, 1936. [Classes 39 (ii) and 75 (ii)] An illuminant enclosure for use in a liquid comprises an ellipsoidal reflecting portion A with foci F, F<11> and a coaxial hyperboloidal transmitting portion B with foci F, F<1>, the eccentricity of the hyperboloid being equal to the refractive index of the liquid divided by that of air. The light source is placed at the focus F", preferably along the axis of the enclosure, and the emergent beam is parallel to said axis. The enclosure may be the bulb of an incandescent electric lamp with its filament at the focus F<11>.
Patent GB-910668-A (GB)
Title: Improvements in or relating to the manufacture of vulcanised footwear articles
IPC: B29C35/00
Filed: 1961-04-04
Abstract: 910,668. Laminates. LUDWIG, H. April 4, 1961, No. 11916/61. Class 140. [Also in Group V] Two layers in the form of a rubber shoe upper 14 and a differently coloured rubber shoe sole 16 are simultaneously vulcanized in a vulcanization press mould and are joined during the vulcanizing process through a non- fusible intermediate layer 15 which projects beyond the edges of the two aforementioned layers and may be of a contrasting colour. The layer 15 may be of pre-vulcanized rubber or synthetic resin, may be apertured to permit interbonding of the outer layers, or may comprise only a peripheral strip.