baber/WOPTO huggingface dataset:
Patent GB-487658-A (GB)
Title: Improvements in and relating to electric switches operated by cams
IPC: H01H3/42
Filed: 1937-12-06
Abstract: 487,658. Snap - action switches. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 6, 1937, No. 33723. Convention date, Dec. 5, 1936. [Class 38 (v)] A switch having on one end of a pivoted lever a contact which moves between two fixed contacts, is operated by rotating a cam disc which acts on the lever through a mechanism of spring urged links. A pivoted bell-crank b carries a roller l at one end which engages the edge of a cam k, and is pivotally connected at the other end with a lever a. The tension of a spring c acting on lever a and through the engagement of surface n with a roller d on one end of a centrally pivoted lever e holds a contact g at the other end against a fixed contact i. When cam k rotates the roller l rides up a cam surface m, causing rotation of bell-crank b and movement of the lever a with increase in tension of the spring c, until roller d passes over the apex of surface n and the spring tension is relaxed, lever c rotating with a snap-action to bring contacts f and h into engagement. Continued rotation of the cam k allows roller l to ride down the other surface m to cause arm e to move back again with a snap-action.
Patent GB-429604-A (GB)
Title: Improvements in steam desuperheaters
IPC: F22G5/12
Filed: 1933-12-01
Abstract: 429,604. Desuperheating steam by water sprays. O'BREEN, J. E., and GORDON & CO., Ltd., J., Regent House, Kingsway, London. Dec. 1, 1933, No. 33814. [Class 55 (ii)] Steam is desuperheated by so injecting it from the main 2 into a space 1 of larger section that it traverses the space with a whirling motion, and water is sprayed axially into the space from a nozzle 4. A thermostat 8 near the steam outlet 11 controls the water supply to the nozzle. The steam may enter the space tangentially or it may be given the whirling motion by suitably shaped vanes.
Patent GB-1138419-A (GB)
Title: Ergoline derivatives
IPC: C07D457/02
Filed: 1967-07-24
Abstract: 1,138,419. Ergoline derivatives. SOC. FARMACEUTICI ITALIA. 24 July, 1967 [29 July, 1966], No. 33887/67. Heading C2C. Novel 1,6-dimethyl-10α-ergoline derivatives of the formula wherein R is a hydrogen atom, or a radical of an aliphatic, cycloaliphatic or heterocyclic carboxylic or sulphonic acid having from 1 to 10 carbon atoms in the molecule, unsubstituted or substituted by, halogen atoms, hydroxy-, nitro-, amino-, alkylamino-, alkyl-, aryl-, alkoxy-, aryloxy-, thioether or sulphonic groups, or a radical of an alkyl- or arylcarbonic acid or dialkylcarbamic acid are prepared by hydrogenating 1,6 - dimethyl - 8# - aminomethyl - 10α-ergoline and where desired acylating the resulting 1,6 - dimethyl - 8# - aminomethyl - 2,3 - dihydro - 10α - ergoline with the chloride or anhydride of an appropriate acid. Pharmaceutical compositions, suitable for oral, rectal or parenteral administration and having antienteraminic, oxytocic adrenolytic, hyposensive and sedative activity, contain as the active ingredient one of the above novel ergoline derivatives.
Patent GB-1457996-A (GB)
Title: Gamma irradiation plants
IPC: G21K5/02
Filed: 1975-08-14
Abstract: 1457996 Gamma irradiation apparatus SULZER BROS Ltd 14 Aug 1975 [16 Aug 1974] 33898/75 Heading H5R A gamma irradiation plant includes a source support frame 2 movable vertically between a raised operative position shown and an inoperative position in which it is lowered, e.g. into a water tank, the frame 2 consisting of hollow members 3, 4, 5, 6 into which a fluid coolant, e.g. air is introduced via connections 30, 31 in the operative position, the air escaping through apertures 21 to pass over tubes 20 which contain the gamma sources, the air being extracted through a duct 40. The tubes 20 may be surrounded by corrugated screens to direct the air flow, Figs. 5 and 6 (not shown). Drain holes 35 permit escape of water when the frame 2 is raised from the water tank, the holes 35 then being closed by members 36. Fig. 4 (not shown) is a similar device with liquid coolant which flows through the frame 2 as did the air in Fig. 1 but it then flows through the tubes 20 which have radial fins to hold the gamma sources centrally. The coolant supply pipe has a condenser to reduce ambient humidity.
Patent GB-1360279-A (GB)
Title: Styryl compounds processes for theirmanufacture and their use
IPC: C07C25/24
Filed: 1971-07-20
Abstract: 1360279 Styryl compounds CIBA-GEIGY AG 20 July 1971 [23 July 1970] 33936/71 Addition to 1222863 Heading C2C [Also in Division C3] The invention comprises compounds of the formula where either (a) 1, 2 or 3 of R 1 , R 2 , R 3  and R 4  are F, Cl or Br and the others are H, or (b) 1 or 2 of R 1 , R 2 , R 3  and R 4  are F, Cl or Br another or R 1 , R 2 , R 3  and R 4  is alkyl or alkoxy of 1-4 carbon atoms, or two of the symbols together represent methylenedioxy and the remainder are H. The compounds are prepared by reacting compounds of the formula in a molecular ratio of 1 : 2 with compounds of the formula (V) where one of Z 1  and Z 2  is CHO and the other is one of the groups where R is optionally substituted alkyl, optionally substituted phenyl, cyclohexyl or aralkyl.
Patent GB-188243-A (GB)
Title: Centrifugal drying machines
IPC: B04B3/02
Filed: 1921-12-16
Abstract: 188,243. Harvey, L. C., and Buckley, C. A. M. Dec. 16, 1921. Strainer separators.-A centrifugal drying machine has a perforated revolving cage 3 with a circular bottom plate 11 resting on a vertical shaft 11<a>. The lower end of this shaft is connected by pin and slot connection to one end of the pivoted lever 12, the other end of which rests against a cam 15. The driving spindle 9 is connected to the cam by toothed gearing 17, 18 and worm gearing 19, 16. The material is fed into the hopper 5, falls into the cage 3 and the moisture is thrown out to the casing 2 and nozzle 4. At regular intervals owing to the action of the cam 15 the plate 11 rises and pushes the upper part of the material of the top of the cage into the tray 7. The plate 11 then sinks and a fresh supply of material is introduced. The plate may be perforated and it may rotate with the cage. It may be arranged to close the shoot from the hopper 5 when it is in its raised position.
Patent GB-176135-A (GB)
Title: Improvements in or relating to apparatus for unwinding rolls of strip material
IPC: G03B21/32
Filed: 1920-12-01
Abstract: 176,135. Holmes, J. S. Dec. 1, 1920. Feeding webs from insides of rolls. To maintain the inside diameter of the roll, e.g. of a kinematograph film, constant during the unwinding, the roll is placed on a support having a rotating inner portion and is subjected to a frictional edge drive by which the convolutions are advanced on to the inner portion. The outer portion or portions 2 of the support may be stationary or may be rotated in the same direction as the inner portion 1 at a smaller angular velocity, as by the bevel gearing shown in Fig. 1. The inner portion comprises a hub 10<a> shaped as shown, or alternatively conical as indicated at 16, a cylindrical part 12, and a conical base part 13. The conical surface of the part 13 and the upper flat face of the part 12 may be fitted with a rubber or other frictional covering. A ring 17, Fig. 4, shaped as shown, may be provided to fit over the upper edges of the roll. One face 14, Fig. 3, of the take-up holder may be fitted with spring slides 15 adapted to be retracted to enable the holder to be placed on the support with the central opening 14<a> around the inner portion 1. According to the Provisional Specification, the ring 17 may be driven, and the frictional edge may be supplemented by an intermittently operative toothed drive.
Patent GB-307859-A (GB)
Title: Improvements in or relating to lifting-jacks
IPC: B66F3/10
Filed: 1927-12-15
Abstract: 307,859. Lake, A. E. Dec. 15, 1927. Jacks.-A screw jack comprises a plurality of concentric telescopic sleeves which may be fitted with key-and-slot connections, a crutch on the innermost sleeve, and actuating means comprising externally-threaded rotatable spindle and an externally-threaded tubular member engaging a nut-like part on the crutch-carrying sleeve and having a nut-like part engaging the spindle. To provide adequate lateral support for the crutchsupporting member when the jack is extended, the casing 10 is fitted with three concentric telescopic sleeves 11, 12 and 13, which when collapsed are nested together and when extended have an adequate overlap. The sleeves are secured against rotation by key-and-slot connections 14, 15, the lower ends of the slots forming shoulders acting as stops to prevent disengagement and to ensure the required overlap of the sleeves. The actuating means comprise suitably rotated bevel gearing 23, the bevel wheel 21 being secured to a screwed spindle 20 engaging the nut-like lower end 26 of an externally-screwed sleeve 25, which engages the nut-like lower end 28 of the innermost sleeve 13 carrying the crutch 30. The crutch 30, Fig. 3, is mounted by means of a split ring 31 on a cap 29 screwed on the upper end of the sleeve 13, the cap 29 being provided with an inwardly projecting flange having a depressed part 33 adapted to engage a shoulder 34 on the screwed sleeve 25 to limit rotary movement between the parts when lowering.
Patent GB-1384378-A (GB)
Title: Switch devices
IPC: H01H37/14
Filed: 1971-07-20
Abstract: 1384378 Lighting switches HORSTMANN GEAR CO Ltd 17 July 1972 [20 July 1971] 33982/71 Heading G1A [Also in Division H1] A switch comprises a primary heater 10 connected to a photo-electric light sensing device 11 and arranged to heat bi-metal 2 in dependence on the intensity of light incident on device 11, bi-metal 2 when heated above a threshold temperature opening normally closed contacts 5, 8 to open the circuit to the load (street lamps), and a secondary heater 13 in series with contacts 5, 8 and connected, when contacts 5,8 are closed, in parallel with the load to heat bi-metal 2 to above ambient temperature but below the threshold temperature so that the change in incident light intensity required to open contacts 5, 8 by bi-metal 2 is less than the light intensity change which would be required in the absence of heater 13. At night time, the switch is as shown with contacts 5, 8 closed and the lamps alight and heater 13 heating bi-metal 2 to just below its operating temperature. At dawn, the light reduces the resistance of cell 11 and more current flows through primary heater 10 which raises the temperature of bi-metal 2 till it bends in the direction of the arrow and opens contacts 5, 8, cutting off the lamps and heater 13 but maintaining current through primary heater 10. When it becomes night again, the resistance of cell 11 increases reducing the current through heater 10 so that contacts 5, 8 close again, energising the lamps and heater 13.
Patent GB-509244-A (GB)
Title: Improvements relating to wings of variable section and control means related thereto for aircraft
IPC: B64C3/38
Filed: 1937-12-08
Abstract: 509,244. Controlling aircraft. PHILLIPS & POWIS AIRCRAFT, Ltd., and HEAL, L. C. Dec. 8, 1937, No. 34004. [Class 4] In an aircraft wing a flap 15 is nested and adapted to be pivoted on linkwork 19 rearwardly and angularly depressed to increase the angle of incidence. The flap is shown partly extended in Figs. 1 and 3. When the flap is nested between the wing parts 13, 14, the whole forms a streamline section. The axes of the pivots 21 connecting the links 19 to the flaps are inclined rearwardly in the extended position of the flap and the pivots 21 are connected to the flap by pivots 23. With this construction, the inclination of the flap is decreased, as it is swung into its nested position, to the horizontal when it is fully housed within the wing. The flaps are operated by hydraulic jacks 25 and levers 33. The gap formed between the wing and the flap when the latter is extended may be closed by resilient flaps. The flap is provided with a landing flap 34A and an aileron 34, the control of which is transmitted to the flaps by a chain 43 looped round sprockets on the link pivots 20, 21, in order that movement of the aileron should be independent of movement of the flap. A cable and pulley or link and lever system may be substituted for this arrangement. The landing flap 34A may be similarly controlled or may be operated dependently of the flap 15. Each link 19 may be replaced by two links of unequal length to give the necessary inclination of the flap. Specification 504,336 is referred to.
Patent GB-393642-A (GB)
Title: Improvements in and relating to tiles or slabs for partitions and walls
IPC: E04B2/28
Filed: 1931-12-09
Abstract: 393,642. Tiles for walls. HUGHES, R. A., Encaustic Tile Works, The Quay, Poole, Dorset. Dec. 9, 1931, No. 34172. [Class 87 (i).] Tiles or slabs a, b, preferably intended for assembling back to back to form a partition, are provided on their backs with diverging projections c adapted to interlock as shown or to be embedded in plaster. The members c are fixed to the tiles by glazing ribs d thereon secured in slots e in the tiles by glazing and they are preferably arranged to cover the joints a<1> in the opposite set of tiles. Metal reinforcing rods may be added to the structure. The interstices between the projections are filled with plaster.
Patent GB-819336-A (GB)
Title: Submerged fermentation process
IPC: C12N1/20
Filed: 1957-11-01
Abstract: Micrococcus lysodeikticus is produced by inoculating an aqueous nutrient medium containing carbohydrate, proteinaceous materials, growth factors and mineral salts with M. lysodeikticus especially M. lysodeikticus ATCC 4698 under submerged aerobic conditions and maintaining the pH of the medium at 7.0 to 9.5 and preferably 7.5 to 9.0 throughout the cultivation.  Specified carbohydrates are dextrose, sucrose, maltose molasses and corn syrup.  Sources of proteinaceous material and growth factors are yeast extract, corn steep liquor, autolysed yeast and peptone.  Mineral salts are water-soluble salts of magnesium, sodium, iron, potassium, manganese, sulphur and phosphorus.  The medium is buffered at the desired pH by means of sodium bicarbonate, potassium bicarbonate, sodium citrate or a mixture of di-and tri-sodium phosphate.  A preferred medium contains yeast extract, dextrose, sodium chloride, ferrous sulphate, magnesium sulphate, manganese sulphate and sodium bicarbonate in water and has a pH of 8.8.  M. lysodeikticus is rich in catalase.
Patent GB-1136671-A (GB)
Title: Improvements in the control of material working apparatus
IPC: B23H7/18
Filed: 1966-07-29
Abstract: 1,136,671. Automatic control systems for electrolytic machining. LAPOINTE MACHINE TOOL CO. Ltd. July 29, 1966 [July 29, 1965], No. 34213/66. Heading G3R. [Also in Division C7] Electrolytic shaping apparatus comprises a driven shaping wheel 1 formed with slots 12; a carrier 2 for a workpiece W; means for supplying electrolyte L to the gap G between wheel 1 and workpiece W; a voltage source E for applying a potential across the gap; an electro-hydraulic drive 3 for feeding the carrier and hence the workpiece towards the wheel; and a circuit 14 responsive to signals derived from the gap G for controlling the feedrate of the workpiece W. The control circuit 14 comprises a gate stage 16 to which the gap signals are applied and voltage sources V1, V2, V3, of different values, which are selectively connected by way of switches S1, S2 and an output stage 18 to the drive 3. At the start of a machining operation switches S1 and S2 are in the position shown, after a manual switch S3 is momentarily closed, whereby the voltage V3 is connected to the output stage 18 so that the workpiece is fed towards the wheel at a fast rate; when the wheel nears the workpiece, the rotation of the slots 12 in the gap G imposes variations on the electric field in the gap, thereby producing a recurrent signal having a high amplitude. This signal is passed through the gate 16 and causes both switches S1 and S2 to transfer, thereby connecting voltage V2 to the output stage 18 so that the workpiece is then advanced at a slow speed; as the wheel enters the workpiece the amplitude of the gap signal falls below a threshold level determined by the gate 16 and this causes switch S1 to transfer back to connect voltage V1 to the output stage 18 resulting in the workpiece being advanced at a normal intermediate speed for the dissolution of the material of the workpiece. As the operation continues the gap narrows to virtual contact, whereupon a high amplitude signal is produced to decrease the rate of feed and widen the gap, the rate of feed thus alternately increasing and decreasing until the end of the shaping operation. The stage 16 includes a gate transistor, the switches S1 and S2 are constituted by bi-stable multivibrator circuits and the output stage 18 includes amplifying transistors, suitable circuit arrangements being described with reference to Fig. 7 (not shown).
Patent GB-1468697-A (GB)
Title: Gas discharge panel information read-out systems
IPC: G09G3/291
Filed: 1974-08-02
Abstract: 1468697 Gas discharge panel store FUJITSU Ltd 2 Aug 1974 [3 Aug 1973] 34286/74 Heading G4C A gas discharge panel comprising row and column electrodes defining storage cells is readout by circuitry including charge storage unidirectionally-conducting devices connected to the row electrodes. The devices are charged immediately prior to a Read pulse applied to a selected column electrode so that, during a first part of the pulse, reverse current flows until the devices regain the ability to prevent reverse flow. The remainder of the read pulse causes a rise in potential on those row electrodes having a firing cell in common with the selected column electrode, so indicating the data stored. The Read circuit shown in Fig. 3 employs charge storage diodes CSD1-CSDn connected to the y electrodes of the discharge panel PDM. Prior to applying a read pulse to an x electrode, transistors QC and Q1-Qn are turned on for a period T to store charge in diodes CSD1-CSDn. As soon as these transistors are turned off a Read pulse is applied and QR is turned on. Initially a current Ic, Fig. 2, flows to charge the capactive load of all the display panel cells, this current flowing in the reverse direction through diodes CSD1-CSDn. The time T during which forward current flowed in the diodes is so chosen that they remain in the reverse conducting state until Ic ceases. The subsequent gas discharge current pulse Ig in those cells in the selected column that are firing can therefore not flow through the diodes CSD1-CSDn but instead flows into the stray capacitance at the inputs of amplifiers AMP1-AMPn, causing a rise in potential at the corresponding y electrodes which is passed to the outputs YR1-YRn by the amplifiers. This arrangement obviates the need for means to switch a reactor from low to high impedance between Ix and Ig as in a prior Read circuit (Fig. 1, not shown).
Patent GB-955779-A (GB)
Title: Improvements in or relating to telephone cables
IPC: H01B11/00
Filed: 1962-09-07
Abstract: 955,779. Cables. SIEMENS & HALSKE A.G. Sept. 7, 1962 [Sept. 8, 1961], No. 34295/62. Heading H1A. A telephone cable core is formed from twisted bunches e.g. B and B2, of unit groups of conductors, each bunch consisting of five unit groups, with the length of lay of the unit groups in each bunch greater than the length of lay of the bunches. The unit group consists of three conductors a, b and c insulated with synthetic material, two wires for the speech circuit and the other as a signal wire. Each bunch may be wound with a differently coloured insulating strip such as 11 for identification. A method of manufacturing a cable (Fig. 4, not shown) is described in which individual bunches are taken from respective feed drums then stranded to give periodically differing lengths of lay by variably rotatable perforated discs before passing through spinning heads applying identifying coloured strips and on to a stranding and forming die whereafter the cable core is taped and insulated.
Patent GB-1378143-A (GB)
Title: Data processors
IPC: G06F13/12
Filed: 1971-07-23
Abstract: 1378143 Data processing systems INTERNATIONAL COMPUTERS Ltd 20 July 1972 [23 July 1971] 34604/71 Heading G4A Instructions extracted from a program memory 210 include at least two addresses which are used to select source data items from different ones of at least two addressable sets of registers (block 230) simultaneously, and a logic unit 250 is controlled by the instructions to perform logic operations on the selected data items. In the exemplary embodiment described, register block 230 is divided into two sets of 16 registers each of 12 bits. One or both of multiplexers 234, 235 can be selected by an instruction to pass the  contents of the addressed register in the associated set or the data field of an instruction in buffer 217 or predetermined bit patterns such as all 1 or all 0 to logic unit 250 which performs the basic operations of addition and comparison. The output of logic unit 250 is supplied to an output block, Fig. 3 (not shown), over cable 254 and may be inserted in a selected register in block 230 via a multiplexer 205. The destination register in block 230 may be one of the source registers. The necessary switching operations are controlled by a control block 220 which receives the order code of an instruction held in buffer 217. The input to register block 230 may also be supplied by the data field of an instruction in buffer 217 or as the result of a masked read operation on an input block, Fig. 1 (not shown), in which a 3-bit field (41) of the instruction selects 12 of 96 inputs for masking with the 12- bit data field (42) of the instruction, and the resulting masked word is stored, via multiplexer 205, in a register selected by a 5-bit field 43 of the instruction. The inputs may be from a peripheral machine and in response to such inputs variations in a set of outputs are required according to the program stored in memory 210. In an operation requiring two registers in block 230 to be addressed, instruction fields 41, 43 are combined as two 4-bit addresses to select a register from each set of block 230. The output block utilizes the 12-bit word from unit 250 as follows: one group of 4-bits is decoded to select one of 16 groups of four gates which are supplied with a second group of bi-bits constituting a mask for the remaining group of 4-bits to control the setting of a corresponding group of4 bi-stables. In this manner up to four of a set 64 outputs can be altered at a time. The instruction memory 210 is sequentially addressed by a counter 212 but program jumps can be made by presetting counter 212 by the output of multiplexor 205. Specification 1,378,144 is referred to.
Patent GB-979483-A (GB)
Title: Improvements in or relating to mechanical overload indicating or control apparatus
Inventor: FIELDER ERIC CHARLES WILLIAM
IPC: B66C23/90
Filed: 1962-09-11
Abstract: 979,483. Lifts; lift trucks. E. K. COLE Ltd Aug. 27, 1963 [Sept. 11, 1962], No. 34624/62 Headings B8H and B8L. A strain-sensitive device for giving alarm signals in the event of overloading of apparatus such as a lift, fork lift truck or crane jib comprises two bridge circuits having a common power supply and each including at least one strain-sensitive element. As shown, the two load cell bridges 1, 2 comprise load-sensitive resistors 4, 5, 6 and 7 and are supplied by an oscillator 3 which also applies a phase sense signal to detectors 10. The output of the bridge circuit is modified by the potential dividers R1, R2, R3 so that when the force reaches a preset value the phase of the output is reversed and relay 11 operates to give an alarm. The potential divider circuit can be replaced by a bridge circuit and instead of detecting the phase sense an amplitude discriminator using a chopper amplifier in the ease of D.C. voltage may be used. The lamp may be arranged to give an indication at a lower value than the bell if desired. The switches 8 are included so that the correct functioning of the apparatus can be checked.