baber/WOPTO huggingface dataset:
Patent GB-892221-A (GB)
Title: Improvements in or relating to clutch control of tractors
Inventor: MARINDIN ROBERT
IPC: B62D49/08
Filed: 1958-09-01
Abstract: 892,221. Gearing for stopping and starting machinery. INTERNATIONAL HARVESTER CO. OF GREAT BRITAIN Ltd. Aug. 19 1959 [Sept. 1, 1958], No. 27975/58. Class 80 (2). [Also in Group XXXI] Disengagement on overload of a tractor clutch when a drawn or carried implement strikes an obstruction is effected hydraulically by the increase in compressive force caused thereby biasing a rod 2 attached to the implement leftwards of the Figure into a cylinder 1 connected by an eye 1e to the tractor, the telescoping cylinder and rod 1, 2 forming the top link of the usual three-point linkage between the tractor and the implement, the rod 2 comprising at its end a piston 3 which projects into a liquid-filled space 4, one side of which is formed by a ring-shaped piston 9 slidable upon the piston 3 against the bias of an adjustably   compressed spring 13 as the liquid pressure is increased under normal load, overload caused by the implement striking an obstruction &c., forcing the piston 3 further leftwards within the space 4 until the piston contacts a stud 18a on the end of a valve 18 which is thereby opened against the bias of a spring 21 to admit liquid under pressure from the space 4 through ports 20, 22, 24 to a pipe 25 leading in turn to the clutch-disengaging mechanism 26, which may operate clutch-disengaging means as described in Specification 829,346. Included in the clutch disengaging means 26 is a one-way restricting valve 38, so that on removal of the obstruction or rebound of the tractor, immediate re-engagement of the clutch is prevented, liquid instead slowly passing back through the oneway restriction 38, the pipe 25, the port 22 and the valve 18, which is maintained open by liquid pressure acting on land 18b. Liquid gradually leaks past the valve 18 through a space 29 into a partially-filled reservoir 15. Accordingly, the clutch gradually re-engages, but only after the tractor driver has had sufficient time to move the gear-shift lever into neutral or, if preferred, the reverse position. If reverse is established, the rod 2 is pulled rightwards out of the cylinder 1, and liquid is drawn from the reservoir 15 through a one-way valve 30 and a port 34 into the space 4 as the piston 3 slides rightwards. The compression of the spring 13 is adjusted by turning a nut 14 threaded on the exterior of the cylinder 1, the nut being provided with a transverse bar 14b. As a modification, the cylinder 1 and the rod 2 may be connected to the drawn implement and tractor, respectively. In a further modification, the spring-loaded piston 9 and the valve assembly 18, 30 may be accommodated in the power lift housing or other part of a tractor, and may be associated with the power lift control device as described in Specification 876,258. As a further modification, release of liquid pressure to allow re-engagement of the clutch may be effected by a manually-controlled valve.
Patent GB-340239-A (GB)
Title: Improvements in and apparatus for the manufacture and production of carbon black
IPC: C09C1/54
Filed: 1929-09-17
Abstract: <PICT:0340239/III/1> Carbon black is obtained by the thermal decomposition of carbon p  compounds in a rotary vessel, preferably having perforated walls, in which the catalyst is in a freely movable state for instance in the form of solids of rotation.  The substance to be decomposed, e.g. ethylene is led through an inlet D and perforated tube B into a rotary perforated drum A containing a catalyst shaped into balls M the carbon formed being withdrawn by a conveyer E.  The catalyst may be produced by mixing iron powder with moist nickel hydroxide, moulding into balls and heating in a stream of hydrogen.  Carbon monoxide is treated by passage in a rotary drum over cobalt powder moistened with potassium carbonate solution, the cobalt powder being removed from the product by stirring with dilute nitric acid.
Patent GB-876600-A (GB)
Title: Improvements in means for cutting membranes
Inventor: CASTELOW ALFRED HAROLD
IPC: A22C17/14
Filed: 1958-09-02
Abstract: 876,600. Cutting machines. HALSTEAD MANUFACTURING CO. PTY. Ltd. Sept. 2, 1958, No. 28204/58. Class 31 (1). A goldbeater cutting machine comprises a rear guide 5 to the front of which is secured a plate 6 formed with slits 7A, 7B, the plate 6 being detachably mounted on a bed plate 9 to which guide posts 10 and a guide 11 are secured, and rotatable cutter discs 22A, 22B mounted in a frame 20 which is displaceable towards and away from the cutting position. The guide 5 comprises front and rear wire frames 12, 13, the frame 12 having a wire 16 secured centrally to the rear thereof. The frame 20 is rotatable about the axis 28 of a fixed sleeve 26 and the cutter discs are rotated by an electric motor 33 through a belt 35 passing round pulleys. The cutter discs 22A are of greater diameter than the cutter discs 22B. In use, the goldbeater 42 and inner membrane of the intestine are partly separated and the goldbeater drawn over the rear end 13 of the guide while the inner membrane is guided between the wire 16 and the lower surface of the bed plate 9. The frame 20 and cutter discs are lowered so that four cuts are made in the goldbeater. The frame 20 is then raised clear and the free end of the goldbeater, which is held in the operator's hand 43, is twisted through 180 degrees. This has the effect of raising the outer edges 44 of the goldbeater and positioning them over the slits 7A, the slits 7B remaining clear. The frame 20 and cutter discs are again lowered momentarily so that the discs 22A produce short diagonal cuts in the outer edges 44 of the goldbeater. The frame 20 is raised and the goldbeater untwisted to its original position and the frame 20 again lowered. The operator then draws the three cut bands of the goldbeater forwards and positions the centre band 45 between the guide posts 10 and in the centre of the guide 11. The outer bands 46 are positioned one at each side of the guide posts 10 and of the guide 11. The diagonal cuts allow the fatty tissue 47 adhering to each side of the goldbeater to fall clear at each side of the plate 6, this being facilitated by means of notches 48 in the sides of the plate 6. The guide 11 may be dispensed with and the cut goldbeater drawn between two rollers, one of which is provided with spaced ribs or teeth and the other of which is smooth.
Patent GB-1394510-A (GB)
Title: Ink fountain blade for printing press
IPC: B41F31/04
Filed: 1973-06-13
Abstract: 1394510 Inking apparatus ROLAND OFFSETMASCHINENFABRIK FABER & SCHLEICHER AG 13 June 1973 [13 June 1972] 28208/73 Heading B6C A duct blade 1, 7 presents to the duct roller with which it co-operates an edge comprised of discrete sections 4, separated by slots 2 filled by resilient plastics bodies 3. Application of adjusting cams 5 causes relative movement of the sections 4 out of the plane of the body of the blade 1, 7, and permits adjustment. The blade 1, 7 may be overlain by a thin elastically deformable plate 9 of plastics material or spring steel, adhered to the blade 1, 7 and to roller contact pieces 13.
Patent GB-989530-A (GB)
Title: Improvements in or relating to fluid control valves
IPC: F16K11/078
Filed: 1961-08-03
Abstract: 989,530. Valves. H. TEVES, E. A. TEVES, and M. TAUSEND, (trading as ALFRED TEVES MASCHINEN-UND ARMATURENFABRIK KOMM-GES). Aug. 3, 1961 [Aug. 18, 1960], No. 28236/61. Heading F2V. A fluid-flow control valve comprises a valve casing 1 having a bore, fluid ports 2, 3, 4 passing through the casing and opening into the bore, recesses 5, 6, 7 in the wall of the bore and a valve member 8 rotatable in the bore and formed with a groove for selectively interconnecting different pairs of the casing ports and formed with a set of pressure equalizing crossbores 9, 13, 17, the ports and the cross-bores all being located in one radial plane through the valve and the mid-portions of the crossbores being arranged to pass each other without intersecting. When the valve 8 is rotated to connect e.g. a pump with a device and/or a reservoir via the ports 2, 3, 4, the pressure in the ports is equalized by means of the cross-bores 9, 13, 17 and the recesses 5, 6, 7 which correspond in area to recesses 16, 12, 20 formed in the inner ends of the ports. As shown in Fig. 1, similar cross-bores 23, 24 and 25, 26 may be provided in the member 8 on planes B and C, a single cross-bore registering with a groove 21 which, when the valve member is moved, lengthwise, interconnects a pair of casing ports located in different radial planes.
Patent GB-1270616-A (GB)
Title: Method and apparatus for joining conductors by edge bonding
IPC: H01B7/08
Filed: 1970-06-11
Abstract: 1,270,616. Seaming non-metallic sheet material. COLEMAN CABLE & WIRE CO. 11 June, 1970, No. 28339/70. Heading B5K. [Also in Division H1] Three electrical conductors or other elongated members 16, 18, 20 coated with resin such as PVC or polyvinyl acetate are carried from supply reels 10, 12, 14 which may be mounted on a common axle 22 through straightening rollers 26 (28, Fig. 2, not shown) and locating rollers 32, 34 into a converging chamber 40. A jet of hot gas e.g. air is directed through a hole 50 at right angles to the conductors and softens the portion of the resin coating of each conductor adjacent the other conductors. The conductors then pass between spacers 54, 56 which press them together and the fused conductors then pass to a take-up drum 60. The hot air after passing the conductors passes out of the chamber 40 around the incoming conductors to preheat them. The conductors may each have a copper core and may be of different sizes. The distance between the spacers 54, 56 may be varied to allow for different sizes of conductors and the cross-section of each conductor is substantially unchanged by the joining.
Patent GB-401871-A (GB)
Title: Improvements in and relating to optical projection apparatus
IPC: G09F19/18
Filed: 1932-10-11
Abstract: 401,871. Clocks. HITCHINS, C. F., GERRARD, C. W. G., 3, Central Buildings, Westminster, and SKY PUBLICITY, Ltd., Cromwell House, Surrey Street, Strand, London. Oct. 11, 1932, No. 28359. [Class 139.] Dials and hands.- The hour hand of a clock, or of a clock face unassociated with clock mechanism, for use with sky projection appatatus, is carried by a rotatable plate of quartz, mica, or the like ; modifications of other features, enabling the clock &c., to withstand the heat to which it is subjected, may also be made The clock &c., may be used in a projector of he type described in Specification 394,818, [Group XX], and may be mounted on a movable carrier of the type described in Specification 401,870, [Group XX] As shown, the clock comprises a quartz or other transparent refractory plate 26, carrying the hour hand 27, and mounted in a metal ring 23 rotated on ball bearings 25 by peripheral teeth meshing with a driven gear 32. The minute hand 28 is carried by a strip 30 on a metal ring 29 mounted similarly to the ring 23 and rotated by a gear 33. The numerals 18 or their equivalents may be carried by fixed rings 20, 21, and the whole clock may be mounted on a plate 22 to form a unit attachable to the movable object-carrier 36 of the projector. The projector may be provided with a carborundum or other opaque refractory screen 16 having a hole 17 restricting the light beam to an area just including the numerals 18, and the casing 31 containing the clock mechanism may be cooled by a current of air blown into it, or may be heat insulating. The hands and numerals &c., may be made of platinum, the numerals &c., having strips 19 removably clamped between the rings 20, 21 with the aid of registering means ; alternatively the hour hand may be painted on the plate 26, and the numerals, with letters forming an advertisement surrounding them, may be painted on a quartz or like plate, the paint comprising liquid platinum as described in Specification 401,876, [Group XX].
Patent GB-857994-A (GB)
Title: Improvements in or relating to universal salient pole electric motors
IPC: H02K23/02
Filed: 1959-08-20
Abstract: 857,994. Electric motors. OSTER MANUFACTURING CO. Ltd., J. Aug. 20, 1959 [Sept. 5, 1958], No. 28501/59. Drawings to Specification. Class 35. The field coils of a variable-speed universal motor are wound with equal numbers of turns of thick wire and thin wire randomly wound together on each pole, the thick wire alone being used for high-speed operation, and the thick and thin wire being used in series for low-speed operation. A further additional winding for still lower speed may be employed.
Patent GB-675030-A (GB)
Title: Apparatus for the measurement, and comparison, of the conductivity of solutions
IPC: G01N27/04
Filed: 1949-11-08
Abstract: 675,030. Bridge circuits. WILKINS, S. R. Nov. 7, 1950 [Nov. 8, 1949], No. 28617/49. Class 37. [Also in Group XXXV] The concentration of a solution is determined by comparing its conductivity with that of a standard solution in a bridge circuit, the unbalance current indicator being calibrated in terms of percentage concentration. The standard cell consists of two electrodes 14 in a sealed can 15 containing the standard solution 16, and is immersed in the liquid 13 to be measured with electrodes 12, to ensure a common temperature. The fixed arms of the bridge may be resistances 10, 11 or the two parts of a tapped winding on the A.C. input transformer, and the out-of-balance current may be used to obtain automatic control of the concentration of the solution. Alternatively, the voltage drop across the two cells connected in series may be compared.
Patent GB-445679-A (GB)
Title: Improvements in or relating to connectors for electrical conductors
IPC: H01R4/22
Filed: 1935-10-16
Abstract: 445,679. Sleeve couplings. V. G. MANUFACTURING CO., Ltd., and GELDEREN, F. M. VAN, Gorst Road, Park Royal, London. Oct. 16, 1935, No. 28630. [Class 38 (i)] A sleeve cap is made of porcelain and is conically bored and threaded at C to receive a tightly fitting tapering wire coil D of square or polygonal section angularly disposed as shown.
Patent GB-288290-A (GB)
IPC: G03C7/14
Abstract: 288,290. Soc. Civile pour l'Etude de la Photographie et de la Cinematographie en Couleurs. April 8, 1927, [Convention date]. Colour photography.-In the reproduction by projection-printing of colour record images made on linear lenticular films, watering is eliminated from the copy by displacing in a direction perpendicular to the lenticular elements, by optical or mechanical means, during the printing exposure, the image projected on the copying material the amplitude of the displacement being limited to the width of a refractive element. In the apparatus shown, wherein an original B is projected by a lens A on to a blank sensitive film C, a refracting plate D with parallel faces is interposed in the path of the rays, and is oscillated during exposure, as by a cam on the spindle of the shutter of the printing apparatus, to displace the rays in the manner indicated by dotted lines, the displacement I3-O3 being equal to the width of a lenticular element on the film C. Alternatively, the displacement may he produced by oscillation of the lens A, or of the gate carrying the film C.
Patent GB-1010100-A (GB)
Title: Improvements in or relating to vtol or stol aircraft
Inventor: EICHHOLTZ KONRAD AUGUST WERNER
IPC: F02K3/12
Filed: 1962-07-27
Abstract: 1,010,100. Aircraft jet propulsion plant. SOC. NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. July 27, 1962 [Aug. 4, 1961], No. 28862/62. Heading B7G. [Also in Division F1] An aircraft has at least one downwardly directed lift nozzle so positioned that the upward thrust produced thereby passes through or near the centre of gravity of the aircraft, the aircraft having a composite jet engine having two distinct ducts 13 and 15 which include respectively a turbinedriven fan 10, 9 and a generator 14 of motive gas and compressed air, the turbine 10 driving the fan being supplied with compressed air from the generator 14 through an interconnecting duct 18. The lift nozzle 17 communicates with the duct 13 in which is disposed the turbine-driven fan and is positioned close to the centre of gravity CA of the aircraft, the turbine-driven fan being disposed forwardly of the centre of gravity CA and the generator 14 rearwardly thereof. A combustion chamber 11 is disposed downstream of the ducted fan 9 and turbine 10. A convergent-divergent discharge nozzle 12 is disposed at the downstream end of the duct 13 and a convergent-divergent nozzle 16 is disposed at the downstream end of the duct 15. The centre of gravity of the composite engine is indicated at CM.
Patent GB-683928-A (GB)
Title: Yarn tensioning device
IPC: B65H59/22
Filed: 1950-11-28
Abstract: 683,928. Yarn tensioning devices. SPECIALTIES DEVELOPMENT CORPORATION. Nov. 28, 1950 [Dec. 30, 1949], No. 29066/50. Class 120(ii) A yarn tensioning device comprises a pair of relatively movable members for receiving yarn therebetween, means for causing one of said members to be urged towards said other member, control means operably responsive to the output tension of the yarn, means for resisting operation of said control means, and means operated by said control means for causing one of said members to move away from said other member. As shown a tensioning device generally comprises two pairs of discs mounted on a body member 10, a guide 11 and a control arm 14. The lower disc 24 of each pair is carried on a disc 32 fitted over a boss 18 on a shelf 17 of the base member 10. Each upper disc 25 is mounted on a collar 36 telescoped over a sleeve portion 34 of the disc 32 and is urged towards the lower disc by a pressure bar 56 under the action of a spring 48 on a depending arm 61 of the bracket member 60. The arm 64 of the bracket 60 has a projection 67 at its lower end which extends into a special groove 69 in the face of the casing member 51 abutting the rear face of the body member 10 whereby rotation of this casing member raises or lowers the bracket member 60 and so adjusts the loading of spring 48. Each upper disc 25 is adapted to be moved away from the respective lower disc to relieve the tension applied to the yarn, by a pin 37 extending through an aperture 20 and engaging the under side of the upper disc. Movement of the pins 37 is effected by the control arm 14 in response to the tension in the yarn as it passes through the guide 38 at the free end of the control arm, through the medium of the screw 45 which engages a bar 49 the ends of which are in contact with the pins 37. Movement of the control arm 14 is opposed by a flat spiral spring 50 housed within the casing 51 the outer end of the spring being attached to the casing member in an adjustable manner and the inner end being connected to a disc 54 secured to a shaft 42 which has a block 40 keyed to it, the control arm 14 being attached to said block. Initial setting of the discs is effected by adjusting the screw 45 and output tension of the yarn can be adjusted by rotating the casing member 51 which adjusts, simultaneously, the loading of the spring 48 and also the torque acting to resist downward movement of the free end of the arm 14.. Specification 651,549 is referred to.
Patent GB-732093-A (GB)
Title: Improvements in and relating to methods of and apparatus for measuring the content of water and other impurities in insulating liquids
IPC: G01N19/10
Filed: 1953-10-21
Abstract: 732,093. Hygrometers. GENERAL ELECTRIC CO. Oct. 21, 1953 [Oct. 21, 1952], No. 29080/53. Class 97 (3). A device for measuring the content in the insulating liquid of electrical apparatus of an impurity which effects a humidityresponsive element comprises a humidity-responsive element immersed in the liquid and an indicating means operable by the element to indicate the relative impurity content of the liquid. As shown, a tank 1 housing an electrical transformer 2 is immersed in insulating liquid 3 such as oil. An element comprising a spiral strip 6, supporting a strip of cellulosic material 7 is immersed in the liquid 3 and is fixed at one end to a pin 8 on a bracket 5 on tank 1 and at the other end to a rotatable shaft 9 supported by bracket 5 and extending through the tank wall to carry a pointer 10. The position of the pointer on a scale indicates the relative humidity of the liquid 3, whence its moisture content can be calculated. The content of other impurities which also cause the cellulosic strip to change its dimensions can similarly be calculated. In modifications, the cellulosic strip is straight and operates the pointer through a lever system, or is conical and connected by a cord to a lever connected to the pointer. The cellulosic strip may be replaced by any element, the physical characteristics of which change with humidity; e.g. the element may be a hygroscopic film on the surface of a plate of insulating material such as glass, the electrical resistance of which changes with humidity.
Patent GB-408695-A (GB)
Title: Improvements in coin testing devices
IPC: G07D5/04
Filed: 1932-10-19
Abstract: 408,695. Testing coins. IMPERIAL TOBACCO CO. (OF GREAT BRITAIN & IRELAND), Ltd., East Street, Bedminster, Bristol, and HASTED, H. C., 32, Paddock Road, Cricklewood, London. Oct. 19, 1932, No. 29204. [Class 27.] A coin testing device which will reject coins of soft metal or alloy such as lead, white metal, &c. comprises a fixed member 1, Figs. 1 and 2, constituting a channel for directing a coin 25 to a shoot 2 pivoted at 3 and counterbalanced by nuts 21. The coin lies flat on ribs 6, 7 on the upper surface of the shoot 2 and slides under a retarding element 11 consisting of a knurled wheel 14 mounted in arms 12, 13 pivoted at 8 in extensions 9, 10 of the shoot 2. The retarding element is provided with a screw 16 which carries a pair of nuts 15 acting as a counterweight to press the wheel 14 against the coin. In use, if the coin is genuine, that is of hard material, the wheel 14 will have little retarding effect so that the coin will leave the shoot 2 before the latter has tipped far enough for its lower end 4 to pass below a partition 22. The genuine coin is thus delivered to the right of the partition. A coin of soft metal is retarded by the wheel and will be delivered by the shoot 2 to the left of the partition from which it will be returned to the purchaser. Screws are provided for adjusting the pressure of the wheel 14. The testing device is preferably used in combination with the testing device described in Specification 275,278, [Class 27]. 408,714. Changing signs. SANDOR, N., 33, Hook Road, Surbiton, Surrey. Nov. 1, 1932, No. 30695. [Class 3 (i).] A series of discs 19 carrying each the same number of name, query, &c. indications are mechanically connected to a rotary display drum 3 so as to bring co-relating information into register. A handle 15, which can be turned into any one of a plurality of positions A, B, C, is connected through a shaft 14, crank 13, and universal link 10 to a sector rack 7 meshing with a toothed sleeve 4 on the drum 3, whereby the drum can be axially shifted on its spindle 2 to a position for the display of a corresponding band of matter on the drum periphery. On the shaft 14 is a toothed sector 16 gearing with a pinion 17 meshing with toothed wheels 18 on each of the rotary but spacially stationary discs 19, whereby they are brought to positions corresponding to the axial position of the drum 3. A perforated dial 1, fixed to the spindle 2 on which the drum 3 slides but is rotatably relatively stationary, is then turned from a point opposite a window 20 through which a desired indication is seen till arrested by a stop 22b, and this rotates the drum 3 to display the required information on that band of the drum previously selected by the handle 15. A spring returns the dial 1 on release. The display matter on the drum 3 is seen at a window 24 reflected by a mirror through lenses. In a modification the discs 19 may be rotated other than by the handle 15, and independently of the drum. A plurality of indicators may be provided in compartments in one casing.