baber/WOPTO huggingface dataset:
Patent GB-629431-A (GB)
Title: Improvements in safety means for cotton combing machines
IPC: D01G31/00
Filed: 1947-09-03
Abstract: 629,431. Safety means for combing machines. FAIRCLOUGH, R., MILLER, N.; BALSHAW, W. M., and THOMAS, F. W. Sept. 3, 1947, No. 24258. [Class 120 (i)] A safety means for preventing the raising of a top comb of a Heilman or Nasmith type combing-machine whilst the machine is in motion and for preventing the machine from being started whilst a top comb is raised comprises a horizontal rod B, capable of being oscillated in its bearings b, which extends from end to end of the machine above the arms A<SP>1</SP> carrying the top combs a, and which carries a number of downwardly depending locking rods C, the lower ends of which are adapted to engage the comb arms A<SP>1</SP>, and also a depending lever C<SP>1</SP> having a stud c at its lower end, which engages in a slot d in the upper part of a pivoted link D the lower end of which is connected by a second link D<SP>1</SP> to a substantially vertical lever E, pivotedly mounted at its lower end on a stationary part of the machine, and carrying a plate or arm e<SP>1</SP> which projects into the path of a projection f on the sliding starting rod F when it is in the stop " position and when the rods C are in the " dotted line " position for raising the comb tops. Thus the machine cannot be started until the top combs are lowered and rod C moved to the "full line" position. When the machine is in operation the projection f prevents movement of the comb arm locking rods C by obstructing movement of arm e<SP>1</SP>, and thus the top combs cannot be raised. The pivoted lever E may also be controlled by a device H<SP>1</SP>, through a rod H, which prevents its movement until the comb cylinder has come to rest. Specifications 575,655 and .629,432 are referred to.
Patent GB-216426-A (GB)
Title: Devices for separating dust from air
IPC: B01D46/04
Filed: 1923-10-01
Abstract: 216,426. Blaney, W. T. Oct. 1, 1923. Filtering.-A dust-separator comprises adjacent chambers which respectively receive dust-laden and purified air and communicate through a filter from which the dust is removed periodically by jarring the chambers. Coarse and fine dust may be removed separately. The apparatus shown comprises a hopper having an upper cylindrical portion 1 and a lower conical portion 2, a lid 3 being secured to the cylindrical portion by springs which yield in case of a dust explosion. A cylindrical baffle 15, Fig. 3, depends from the lid, and a conical hopper 7 is spaced apart within the conical portion 2. Within the cylindrical portion a series of filter tubes 11 are disposed, carried by plates 8, 9. The upper ends of these tubes are formed with extensions 14 flared upwards to fit against each other and prevent the settling of dust above the plate 8. Dusty air is admitted through a tangential inlet 16, Fig. 1, to the space about the baffle 15, and deposits coarse dust in the space 16<1> between the hoppers, falling into a trough 18 from which it is removed bv a convever 19. The air flows upwards on the other side of the baffle 15 to the space above the plate 8, and thence through filter tubes into the chambers between the plates 8, 9, from which it passes through pipes 17 into the atmosphere. Dust shaken from the interior of the tubes falls into a tubular casing 21 from which it is removed by a conveyer 20. The casing 21 passes through the trough 18, the space between the casing and the trough allowing dust to fall freely to the lower conveyer. The outlet of each conveyer casing is partly obstructed by a wedge-like device 25 on which a valve 27 is pivoted, the dust thus being packed together to form an air seal. The apparatus is pivotally mounted on a base frame 28, the axis coinciding with that of the conveyer 19; the two conveyers are driven through gearing from a. shaft 30. The shaking means comprises a pitman 40, Fig. 1, passing through a tube 37 and pivoted to a bracket 38 on the hopper. This pitman is reciprocated outwards by a cam on a shaft 33 rotated by chain gearing from the conveyer drive, and is returned sharply by a spring within the tube 37, a cushion or pad 43 above the tube receiving the impact of the hopper.
Patent GB-913667-A (GB)
Title: Improvements relating to direct current modulators
Inventor: SITTON ROBERT MILO WILLIAM
IPC: H03F3/387
Filed: 1960-07-13
Abstract: 913,667. D.C. modulators; transistor pulse circuits. FERRANTI Ltd. July 12, 1961 [July 13, 1960], No. 24341/60. Classes 40 (5) and 40 (6). [Also in Groups XXXV and XXXVI] Relates to a direct current modulator for deriving a square-wave output whose amplitude depends upon the difference between two direct current signals, which includes first and second like transistor stages sharing a common load, means for defining a constant current to flow through the common load, switching means which in one condition connect the first direct current signal to the input of said first transistor stage and the second direct current signal to the input of the said second transistor stage and which in the other condition reverses these connections, and means for driving the switching means from one condition to the other at a predetermined frequency, the required output being derived from the output of one of the said transistor stages. For voltage output signals the two inputs are applied to the coupled emitters of two pairs of transistors T1, T2 and T3, T4 respectively, and also to centre taps on the two secondary windings of a transformer. To the primary winding P of this transformer is applied a square-wave input, so that in one condition of the square-wave one transistor in each pair conducts, and in the other condition the other transistor conducts. These transistors thus act as switches to direct the input signals to the bases of one or other of transistors T5 and T6. These transistors have their emitters connected through resistances, and the emitter circuit is supplied with a constant current through the collector of transistor T7, which has a controlled current flowing in its emitter circuit. If there is a difference between the two input signals then transistors T5, T6 will have their bases at different potentials during the halfcycle periods, and, one will therefore pass a larger proportion of the constant current, so that its collector will be at a lower potential, than the other by an amount dependent upon the difference between the two direct current inputs. Thus the amplitude of the output square-wave, taken from the collectors of T5 and T6 through emitter followers T8 and T9 depends upon this difference. An embodiment suitable for use with current input signals is also described.
Patent GB-412444-A (GB)
Title: Improvements in hair pulling devices
IPC: A45D26/00
Filed: 1933-09-01
Abstract: 412,444. Removing superfluous hair. NESTLE-LEMUR CO., 111, 8th Avenue, New York, U.S.A. Sept. 1, 1933, No. 24351. Convention date, Sept. 2, 1932. [Class 131.] A depilatory device comprises a pair of gripping fingers, one of which moves relatively to the other to grip and release a hair, the movable finger being pivotally connected with motor actuated means adapted to reciprocate the fingers axially to pull a hair. A member 18 is slidably mounted in a tubular container 12 and carries at its forward end a pair of fingers 19 and 20. The upper finger 19 is rigidly secured to the member 18 and the finger 20 is pivoted on the said member to co-operate with the fixed finger. The rear end of finger 20 is provided with bifurcated ends 27 having inclined slots 28 which receive the free ends of a transverse pin 29 carried by link 30. When this link is moved longitudinally, the member 18 being stationary, the finger 20 moves to and from finger 19. The member 18 is frictionally held in the container 12 by coil springs housed in extensions 31, so that relative movement of the two fingers is effected before longitudinal movement of member 18 occurs on further movement of the link 30, thus gripping a hair before pulling it, and releasing the pulled hair before the fingers are returned to their outermost position. This link carries at its opposite end a rocking member pivoted at end 41, and which is also pivoted at its centre by pin 39 in a fixed member 35 which is rigidly attached to the container 12. Pins 43 are slidably mounted in member 35 and are arranged to reciprocate and engage alternately with the ends 40 and 41 of the member pivoted on link 30, thus effecting reciprocal movement of the member 18. The pins are reciprocated by means of the angular surface 45 of a cam 44, the cam being journalled in spaced bearings 47 and being rotated by means of a flexible cable 48 operated by a suitable motor. The cable is preferably rotated at approximately 1300 R.P.M. In a modification, the fingers are maintained in their initial position by means of a longitudinal coil spring, and they are reciprocated against the spring by a flexible cable which is connected to the motor through an eccentric which converts the rotary movement of the armature into reciprocating movement of the cable.
Patent GB-245531-A (GB)
Title: Improvements relating to variable gears for motor cars, motor cycles, cycles, and other purposes
IPC: F16H29/08
Filed: 1924-10-15
Abstract: 245,531. Riley, A. J. Oct. 15, 1924. Variable-speed and reversing gearing comprises a pair of variable transmission levers 20, 20a, Figs. 1 and 4, each acting through link 18 and a pair of racks 15, 16 and alternatelyacting ratchets 14 to drive a shaft 7 continuously in one direction. The levers 20 are pivoted at their ends to a fixed support 21 and at their other ends have slots 22 to receive two driving cranks 23 arranged in quadrature. The links 18 are jointed to the double racks and to slides 19, which are moved up and down the levers 20 in unison to vary the speed by a control device 29. This device 29 is an articulated frame comprising a bar 28 passing through slots 27 in the links 18. The shaft 7 is hollow and through it passes a spindle 1 adapted to be driven in either direction through a toothed reversing-gear 8, 13, 11, Fig. 4. For direct drive, pinions 8, 11 are snapped together into clutch engagement and clear of crown wheel 13.
Patent GB-1357496-A (GB)
Title: Dividing attachment for polygon machining on machine tools
IPC: B23Q16/06
Filed: 1972-05-24
Abstract: 1357496 Grinding E JUNKER 24 May 1972 24450/72 Heading B3D A dividing attachment for use in grinding a polygon, e.g. a square, on a workpiece 11, such as a tap, comprises a continuously rotatable driving shaft 3 on which is an eccentrically mounted pin 6 engageable at each revolution of the shaft with a Geneva wheel 8, on a control shaft 7 having a device 10 for clamping the workpiece coaxial with the control shaft. The driving shaft 3 is continuously rotated by a pulley 4 and is rotatably mounted in a cylindrical block 2 which, in turn, is mounted for oscillating movement in a casing 1. A disc 5 on the shaft 3 carries the eccentric pin 6 which is engageable with slots in the Geneva wheel 8 mounted on the control shaft 7, a chuck 10 for the workpiece being mounted on the opposite end of the control shaft. A bush 3 is keyed to the driving shaft and has a pair of cams 18, 26. Cam 18 co-operates with a roller 15 on the end of a lever 14 which is mounted on a pivot 13 and has a tapered projection 19 for engaging locking notches 20 in a disc 21 keyed to the control shaft 7. Cam 26 co-operates with a roller 25 on one end of a lever 24 which is mounted on a pivot 23 on the casing and at its other end is connected by a link 28 to an arm 30 extending from the block 2. At each rotation of the driving shaft, the cam 18 lifts the projection 14 from a notch 20 to permit the pin 5 to act through the Geneva disc to rotate the control shaft through 90 degrees. At the same time, the cam 26 acts through lever 24 to oscillate the block 2 so that the workpiece is moved from the machining plane against the action of springs 31 during the indexing movement.
Patent GB-1000140-A (GB)
Title: Improvements in and relating to deep freeze containers
IPC: F25D23/06
Filed: 1962-06-26
Abstract: 1,000,140. Heat-insulated containers. K. DAHMEN. June 26, 1962 [Nov. 25, 1961], No. 24468/62. Heading F4U. An insulating container 1 and its lid 2 comprise inner and outer synthetic plastic jackets 5, 6 and 10, 11 which enclose insulation 7 and 12, respectively and a synthetic plastic insert 9 is placed in the container to protect its interior from damage from stored goods. The bottom of the insert is corrugated and the walls 5 and 6 are connected together at the upper edge of the container by a bridge-piece 8. The lid 2 has side walls 13, which overlap the side walls of the container, and flanges 14 which fit between the bridge-piece 8 and the insert 9, the lid being secured to the container by straps 3 and 4. Feet 15 are provided on the bottom of the container, the lid having holders 16 shaped to receive the feet to enable the container to be stacked vertically. The insulation 7, 12 is foamed plastic which may be foamed in situ or prefabricated and inserted between the jackets. In further embodiments layers of soft insulating material, e.g. foam rubber, are secured to either or both of the jackets, and the side walls of the insert 9 may also be corrugated.
Patent GB-220493-A (GB)
Title: Improvements in or relating to chain adjustment for multi-sprocket hubs
IPC: B62M9/16
Filed: 1923-10-03
Abstract: 220,493. Lea, J. C. Chater-. Oct. 3, 1923. Driving-chains, adjusting.-In a pedal cycle in which the rear-fork-end A is provided with a forward opening slot B and the wheel hub D is fitted with two or more sprockets with a differing number of teeth, a fork-end A on each side of the hub is provided with forked abutments A<1> and a chain adjuster C, C' is fitted with a nut F having a groove corresponding to each sprocket. The grooves are adapted to engage the abutments A<1>, so that on moving the chain to another sprocket the nut is correspondingly moved and the adjustment of the chain is not disturbed. In a modification, a sleeve nut is provided with a loose collar which is moved to one or other end of the nut, leaving a groove at the other end of the nut. In a further form, a plain nut is employed and a loose collar on the screw C<1> can be placed on one or other side of the abutments A<1>.
Patent GB-499185-A (GB)
Title: Process of and materials for colour photography
IPC: G03C7/26
Filed: 1936-05-09
Abstract: 499,185. Colour photography. KODAK, Ltd. May 10, 1937, No. 24633/38. Convention date, May 9, 1936. Divided out of 500,825. [Class 98 (ii)] A multi-layer colour photographic element which can be developed by reversal and having three gelatino-silver halide emulsions in two or three layers on a single support, one of which is not specifically colour sensitized while the other two are sensitized to the red and green or yellow-green portions of the spectrum, has one or two of the silver halide emulsion layers less accessible to developing solutions than the other layer or layers by temporary hardening of the gelatine or by being formed of collodion emulsion, in order to facilitate differential processing. The layers may be arranged on the same or different sides of a support. Temporary hardening of a layer may be effected by tanning, colour development of an image therein being effected after detaining. Highly dispersed silver bromide may be used in a tanned or an untanned layer. Hardening can be effected by formalin or by glyoxal or its derivatives. In the case of a collodion emulsion layer the image therein is colour developed after the layer is made permeable by alcohol. The photographic element may be in two layers, one containing two sets of silver halide grains respectively sensitized for the red and green or yellowgreen regions of the spectrum, and the other containing not specially sensitized silver halide. Specifications 427,518, 427,520, 454,498, 454,499, and 454,622 are referred to.
Patent GB-724248-A (GB)
Title: Improvements relating to the recovery of sulphur from hydrocarbon gas mixtures
IPC: C01B17/04
Filed: 1953-09-23
Abstract: In a process for the recovery of sulphur from a hydrocarbon gas in which the gas is mixed with one volume of SO2 for every two volumes of H2S present and heated to below about 240 DEG  C., preferably to 180 DEG  C. so that sulphur is deposited on a catalyst, which is preferably activated alumina or bauxite, the catalyst is maintained as a fluidized bed in a reactor 12 and continuously circulated through a regenerator 13 in which the sulphur is distilled off. Spent catalyst from 15 is carried along line 16 in a stream of air which may be mixed with regenerator effluent gas from which the sulphur has been condensed so that the amount of oxygen supplied is sufficient to heat the fluidized bed in the regenerator 13 to about 400 DEG  C. by burning about a tenth of the sulphur.  Product sulphur is condensed in refluxing cooler 19 and the effluent SO2 containing gas with additional SO2 from sulphur furnace 23 passes along line 11 into the hydrocarbon gas stream 10 which <PICT:0724248/III/1> carries with it regenerated catalyst from 17.  Sulphur-free gas passes continuously from line 14 and product sulphur is withdrawn from 21. Furnace 23 which may incorporate a waste heat boiler 26 and may supply all the SO2 required.  A cooler 27 adjusts the temperature of the gases in 11 so as to maintain the temperature constant at about 180 DEG  C.
Patent GB-241197-A (GB)
Title: Electric rail switch responding only to trains running in one direction
IPC: B61L1/04
Filed: 1925-10-06
Abstract: 241,197. Kremenezky, J. [Firm of], and Wimberger, L. Oct. 11, 1924, [Convention date]. Retractive switches which are actuated by a train moving from right to left along the rail 40 but remain unactuated by a train moving from left to right, comprise two pivoted levers 41, 42, controlled by springs 43, 44 and adapted to be depressed by the flanges of the wheels. The lever 41 carries a sleeve 48 in which is an insulated contact 45 and a slidable contact 46 controlled by a spring not shown. When a train approaches from the right, the lever 42 is first depressed and its end engages the contact 46 and presses it into engagement with the contact 45. When a train approaches from the left the lever 41 is first depressed and its end engages and slides along a hook 47 on the lever 42, the contact 46 slipping beneath the hook 47 and therefore being unactuated.
Patent GB-1307745-A (GB)
Title: Methods of and machines for packaging product in which the product ist gas flushed
IPC: B65B9/20
Filed: 1970-05-22
Abstract: 1307745 Packaging in an inert atmosphere HAYSSEN MFG CO 22 May 1970 [29 Dec 1969] 24943/70 Heading B8C In a vertical bag forming, filling, and sealing machine, inert gas is flushed into the forming tube 5 through a pipe 13. The gas, which may be nitrogen or carbon dioxide, is fed from a tank 19 through a solenoid valve 23 which synchronizes the gas supply with the machine operation and then through flow controllers 25 to the pipe 13 and to a further pipe 18 which flushes the top of the forming tube. In order to monitor the effectiveness of flushing, gas samples may be withdrawn from the bags 12 through a pipe 30 by a pump 37. The samples pass through filters 31 and 35 to an oxygen analyser 38 associated with a read-out meter 39. A valve 33 enables flushing gas to be passed through the pipe 30 to a bag at the bottom of the tube 5 at start up to ensure that that bag is adequately flushed. A heater 24 may be present to prevent any condensation of the flushing gas due to its expansion in the system.
Patent GB-518576-A (GB)
Title: Improvements in or relating to the manufacture of washing, cleansing, bleaching and rinsing agents
IPC: C11D3/39
Filed: 1938-08-24
Abstract: 518,576. Cleansing and bleaching agents. HENKEL & CIE. GES. Aug. 24, 1938, No. 24954. Convention date, Oct. 2, 1937. [Class 91] Cleansing and bleaching agents containing percompounds are obtained as homogeneous powders by spraying in the form of a hollow cone a solution, suspension, or melt of the components without the percompounds and spraying the percompounds as a powder into the upper part of the hollow cone, a current of hot or cold gas passing through the apparatus in counter or parallel flow. Suitable percompounds are perborates, percarbonates, perphosphates, perpyrophosphates, and additive compounds of hydrogen peroxide, with or without stabilizers, disinfectants, and fillers. Cleansers specified are soap, fatty alcohol sulphonates, alkali salts of fatty acids obtained by oxidation of paraffins, sodium salts of sulphuric acid esters of higher fatty alcohols, salts of methyl taurins acylated by higher fatty acid radicles, and other soap substitutes ; these may contain water glass, sodium metasilicate, borax, sodium carbonate, alkali ortho-, meta- and pyro-phosphates, and alkali salts of amino-carboxylic acids having more than one carboxyl for each basic nitrogen atom. In an example, a solution of 43 lb. of soap, 17 lb. of sodium carbonate, and 3 1b. of waterglass in 25 lb. of water is sprayed as a hollow cone c from a nozzle a while powdered sodium perborate, sufficient to furnish a 10 per cent. content in the final product, is injected through a nozzle b, hot ,air, nitrogen, or carbon dioxide being passed into the tower g from a pipe d and escaping by a pipe e. Cold air may be injected at separate points if desired. The product is discharged through a valve f. The nozzle a comprises spiral passages to impart rotary motion to the issuing liquid, and a detachable cone piece which is replaceable by others. The nozzle b is formed with inner and outer metal cones between which the perborate issues.
Patent GB-599977-A (GB)
Title: Improvements in indicating scales
IPC: H03J1/04
Filed: 1945-09-26
Abstract: 599,977. Indicating - apparatus. BRITISH BROADCASTING CORPORATION, and BUDD, S. W. Sept. 26, 1945, No. 25010. [Class 106 (iv)] [Also in Group XL] An indicator scale for a variable condenser or other component comprises a sector-shaped scale member and an opaque index member arranged so as to cover the scale member completely in one position and to uncover the scale progressively as relative movement takes place about the centre of the circular arcs. The index member has at least as great an angular extent as the scale, and the faces of the members have sharply contrasting surfaces. An indicator scale 10 consists of a semicircular segment of a disc bearing graduations, the other segment 11 being treated to have strongly contrasting light reflecting properties. The semicircular index member 12 is opaque, and its surface has the same light reflecting properties as the segment 11. The index member 12 is rotatably mounted on a spindle 13, passing through the centres of the segments. The scale is covered completely for one position of the index, and is uncovered as the index moves. The index member may have a greater angular extent than the scale, or both members may extend over more than 180 degrees, when the scale member cannot be wholly exposed.. The index may be formed as an opaque segment of a transparent disc, while the segments 10, 11 may be made separately. Preferably, the scale member is arranged behind a window of the same contour in a casing, the front face of which has similar light reflecting properties to the index member.
Patent GB-312627-A (GB)
Title: Improvements in and relating to steam power plants
IPC: F01K7/02
Filed: 1928-08-31
Abstract: 312,627. Akt.-Ges. Brown, Boveri, et Cie. May 29, 1928, [Convention date]. Driving arrangements.-In a steam power plant comprising a reciprocating engine driving a main shaft, e.g. a propeller shaft b, and an exhaust turbine d, the power of which is transmitted to the main shaft through helical double reduction gearing e, f, g, and an elastic coupling i, the steam thrust of the turbine is taken up by the pinion on its shaft, the thrusts of the wheel and pinion on the intermediate shaft z are arranged to balance one another, and the thrust on the final wheel g is transmitted to the main shaft b, which is provided with a thrust bearing c. In Fig. 2, the sleeve h of the wheel g engages a collar on the shaft b. This thrust bearing may be modified when the turbine is capable of being uncoupled, so that it will transmit thrust in either direction.