baber/WOPTO huggingface dataset:
Patent GB-953123-A (GB)
Title: Improvements in attenuators
IPC: H01P1/365
Filed: 1961-02-23
Abstract: 953,123. Waveguide ferrite isolators. COMPAGNIE FRANCAISE THOMSON - HOUSTON. Feb. 23, 1961 [Feb. 23, 1960], No. 6656/61. Heading H1W. A rectangular waveguide forming part of a non-reciprocal ferrite attenuator (or isolator) is subdivided by conductive partitions extending perpendicular to the electric field, and ferrite elements are located on the partitions as well as on the walls of the waveguide. As shown in Fig. 3, in addition to the usual elongated ferrite slabs 22, 23, two further slabs 24, 25 are located on the conductive partition 21. All the slabs are subject to the field of a polarizing magnet 26. In a modification (Fig. 4, not shown), two partitions and four extra slabs are used. The invention makes it possible to use ferrite elements of optimum length-to-thickness ratio without the necessity for very large magnets. Further, heat dissipation is improved. The Specification describes a known method of solving these problems using two magnets 16, 17, Fig. 2, and four ferrite slabs 12, 13, 14, 15.
Patent GB-734543-A (GB)
Title: A new or improved hand truck or carrier for bottle crates
Inventor: READ FRED DENIS
IPC: B62B1/14
Filed: 1953-03-11
Abstract: 734,543. Hand trucks. BRITISH METAL CRATES, Ltd. March 11, 1954 [March 11, 1953], No. 6676/53. Class 108 (1). A hand truck for carrying bottle crates of different sizes, comprises a wheeled frame, and arms 15 which may be adjustably moved in guide slots 14 by rotating a handle 23 attached to a crank arm to push or pull a link 21 and links 18 to which the arms are attached. The arms 15 are locked in a selected position by allowing a spring plunger on the crank handle 23 to enter one of the holes 24, 25, 26, and the arms also pass through guide slots in a second plate spaced behind the plate 11a, and are prevented from sagging by bosses which bear against the spaced plates. In a modification, the links 18 and 21 may be moved by a lever pivoted to one of the frame side members and engaging with its other end in one of several positions in a gate on the other side member.
Patent GB-864667-A (GB)
Title: Improvements in and relating to shot and like blasting apparatus
Inventor: HOWARTH THOMAS FRED
IPC: B24C5/02
Filed: 1959-02-26
Abstract: 864,667. Blasting. JACKMAN & CO. Ltd., J. W. Jan. 22, 1960 [Feb. 26, 1959], No. 6695/59. Class 60. Shot, sand and like apparatus comprises a blasting unit electrically controlled to supply air and shot or the like through a hose to a nozzle remote from the blasting unit and remote control means, mounted adjacent to the nozzle, comprising a hand grip having a flexible part whereby, on the application of pressure to the flexible part, control of the blasting unit is effected. Brackets 2, 3 mounted on the hose 26 adjacent to the nozzle 25 carry a hollow rigid hand grip 1 with an opening 4 longitudinally of the underside thereof. Within the grip is a flexible walled cylinder 9, which at one end is secured by a clip to a hollow projection 6 on the bracket 2 and at the other end is secured by a clip to a hollow projection 8 on a disc 7 forming part of the bracket 3. A diaphragm 11 eircumferentially secured by bolts to the disc 7 has a thrust plate 13 biased by a spring 17 and in contact with the plunger 14 of a push button switch 15 connected by wires 19, 20 to a solenoid operated valve in the blasting unit. The cylinder 9 contains water with anti-freeze, a stopper being provided in the projection 6.
Patent GB-863455-A (GB)
Title: Improvements in and relating to coal-cutting machines
Inventor: DIXON NORMAN HENRY PRICE
IPC: E21C35/06
Filed: 1957-02-28
Abstract: 863,455. Mineral-mining machines. CRAWLEY INDUSTRIAL PRODUCTS Ltd. May 28,1958 [Feb. 28, 1957], No. 6744/57. Class 68(1). The direction of cutting of a mineral-mining machine is controlled by vertical adjustment of roof and floor-engaging skids relative to the chassis of the machine. The preferred embodiment has on either side of the leading end of the machine chassis 1 a pair of upwardly and downwardly directed jacks 5, 6 on the projecting ends of the piston rods of which are pivotally secured the skids 4, 12. The roof-engaging skid 12 is of arcuate configuration and is pivotally secured at 15 to the machine chassis. The rear of the machine is supported at either side on skids 7 connected to piston rods 8 of jacks 9 secured to the chassis. Independent movement of the various jacks can cause variation of the position of the machine about both transverse and longitudinal horizontal axes. Various other hydraulic and mechanical jack arrangements are described.
Patent GB-1488407-A (GB)
Title: Method for reversal of the direction of tape movement in a tape recorder during playback
IPC: H04N5/7826
Filed: 1975-02-18
Abstract: 1488407 Reversing tape transports BASF AG 18 Feb 1975 [19 Feb 1974] 6768/75 Heading G5R In a method of reversing the direction of movement of a magnetic tape in a longitudinal track video tape recorder (VTR) during playback operation, a high frequency signal of a specific duration is recorded on the tape, during recording operation of the VTR in which the video signal is recorded as a carrier frequency modulated by the video signal, the recording of such high frequency signal commencing at the moment when a reversal of direction of the tape is initiated by the tape transport of the VTR and the frequency of such high frequency signal being above the highest frequency of the recorded carrier frequency modulated by the video signal, and a control signal for initiating tape drive reversal during playback is derived whenever a signal of frequency above the highest frequency of the recorded carrier frequency modulated by the video signal and of duration greater than a predetermined time period, which is shorter than said specific duration, is detected on the tape during playback. The tape transport has a capstan 6 drivingly engaging the peripheries of tape packs 8, 9 rotatable on carriages 14, 15 movable along a line through the axis of capstan 6 with pack 9 being in a cassette 10, and a magnetic head 12 transducing tape 13 at an air-bearing tape guide 11. During recording of video and audio signals on longitudinal tracks on tape 13, initiation of tape transport reversal is effected when carriage 14 or 15 operates microswitch 17 or 18 respectively, such operation triggering a delay circuit (2), Figs. 2, 4 (not shown), giving a delay of about 1À5 sees., the actual reversal operation commencing at the next vertical sync. pulse (in the video signal being recorded) after the end of said delay and taking slightly under 80 msec. for PAL systems (83-35 msec. for NTSC). The local oscillator of a frequency modulator (21), Fig. 4, normally giving a carrier signal frequency modulated by the video signals with 2-4 MHz deviation, is controlled by a coincidence circuit (24), with inputs from delay (2) and vertical sync. detector (23) to give an output signal to the record head with a frequency in the range 5 to 5À5 MHz and starting at the initiation of the actual reversal and lasting for a preset period of at least 200 Ásec. and not greater than about 80 msec. This signal is outside the response range of current playback heads with about 0À4 micron gap and 120 i.p.s. tape speed. During playback, the video head 25, Fig. 5, output is passed via a filter 26, passing the 2-4 MHz signals, to a known form of dropout detector 27 giving a grey colour video signal output whenever a dropout is sensed. The 5 to 5À5 MHz reversal initiating signal on the tape is also sensed as a dropout and is distinguished from ordinary dropouts by a timing circuit 28 which, whenever a dropout lasts for more than a predetermined period, e.g. 200 Ásec., operates a switch 29 to enable tape drive reversal means 30.
Patent GB-363241-A (GB)
Title: Improvements in collapsible chucks for constructing tyres and other purposes
IPC: B29D30/24
Filed: 1931-03-04
Abstract: 363,241. Moulding and vulcanizing wheel tyres. GOODYEAR TIRE & RUBBER CO., 1144, East Market Street, Akron, Ohio, U.S.A. March 4, 1931, No. 6775. Convention date, April 15, 1930. [Classes 70 and 87 (ii).] A collapsable chuck for moulding wheel tyres comprises two pairs of arcuate segments 17, 19. The segments 17 are pivoted at 18 to the outer ends of a rigid arm 13, while the segments 19 are pivoted to the segments 17 at points 23 through the medium of links 22 fixed rigidly to their ends. A hand-wheel 36 carries projecting rods 37 secured to a lever 32 mounted loosely on the central shaft 30 and connected by links to the free ends of the segments 17. The ends of the segments 19 adjacent the pivots are connected to pivots 28 on the rigid arm 13 through the medium of toggles 26. Rotation of the wheel 36 to move the lever 32 clockwise as seen in Fig. 2, draws the free ends of the segments 17 inwards, and in addition draws the segments 19 inwards by a pivotal movement about the points 23, through contact of the lever 32 with and consequent breakage of the toggle 26.
Patent GB-373305-A (GB)
Title: Improvements in or relating to centrifugal clutch devices
IPC: F16D43/18
Filed: 1931-03-05
Abstract: 373,305. Friction clutches. WESTING- HOUSE ELECTRIC & MANUFACTURING CO., East Pittsburg, U.S.A.-(Assignees of Else, H. D. ; 42, Olmstead Drive, Spring- field, Massachusetts, U.S.A.) March 5, 1931, No. 6800. Convention date, March 7, 1930. [Class 80 (ii).] In a centrifugal clutch having segmental weights which co-operate with pins arranged parallel to the axis of an electromotor, the weights are so formed that they impart to the driven member of the clutch a succession of percussive impulses which are repeated until the driven member is brought up to speed. In the form shown, the drum 22 fixed to the driven shaft 6 encloses the weights 26 which are biased inwards by springs 32, 33 and have notches 27 in their straight edges in which pins 25 engage, these pins being rotated by the rotor 7 which is free to rotate on the shaft 6. When the rotor speeds up, the weights tend to turn so that their leading tips engage the drum and the trailing tips swing inwards aslshown in Fig. 3, the pins 25 pressing on the inner edges of the rear notches 27. The peripheral surfaces 34 of the weights are preferably covered with fibrous material, and one spring only may be used.
Patent GB-398199-A (GB)
Title: Improved construction of air conditioning plant
IPC: F24F3/12
Filed: 1932-03-07
Abstract: 398,199. Drying gases ; plate heatexchangers. BELL, G. G., 17, Cleveland Square, Hyde Park, London. March 7, 1932, No. 6807. [Classes 34 (i) and 64 (iii).] A heat-exchanger consists of a series of ducts constructed with heat-conductors which traverse all the ducts, within which they take the form of bars or the like subdividing the flow of gases, the ducts for the warmer gases alternating with those for the colder gases. The ducts are of square or other shape whereby two or more of the outer walls may contact with one another. The exchanger may be used for regenerative cooling of air to be dried by cooling. In one form, the heat-exchanger is built up of alternate heat-conducting plates 2 and distance pieces 1, forming, together with terminal plates 3, alternate high and low temperature ducts M, O. The plates 2 are perforated or slotted, the slots being preferably formed by making a series of cuts on a plate and forcing out the intervening metal to form bars 2a. In another form, the plates 2 are replaced by mats, either woven or built up with metal rods, bars or wires, and the distance pieces 1 are made of yielding material, so that on compression the series of ducts is formed. A heat abstractor for use with the exchanger has a rotatable tube 10 for cooling-fluid provided with heat-conducting fins 10a and a solid portion 10b of non-conducting material. Air from the exchanger enters at 8a and returns at 8b. If the fins become clogged with ice, the tube may be rotated to close the port 8b, the supply of cooling fluid being cut off at the same time, so that the ice is melted by contact with the air in the lower part of chamber 8.
Patent GB-176248-A (GB)
Title: Improvements in and relating to lubricating devices
IPC: F16N7/32
Filed: 1921-03-02
Abstract: 176,248. McKay, E. E. March 2, 1921. Lubricant conveyed by fluid; liquid level, maintaining.-In an internal-combustion engine the cylinder is lubricated by lubricant, which is carried over in a finely-divided state from a vaporizing-tank. An oil-supply tank 1 is connected to a vaporizing-tank 2 by means of pipes 13, 16 fitted with a cock 14. Oil is maintained at constant level in the tank 2 by means of a valve 18 operated by a float 20. The tank 2 has sloping sides 2<11> and a dividing wall 22, which projects just below the level of oil in the tank. An inlet pipe 6 fitted with a spring- controlled valve 7 leads into tank 2 on one side of the wall 22 while an outlet pipe 25 leads from the other side of the wall to the engine cylinder. A check valve 23 is fitted in the outlet passage. During the suction stroke, the valve 7 opens, air passes into the tank 2 and bubbles through the oil therein. The resulting mixture of air and finely-divided oil passes the non-return valve 23 into the engine cylinder.
Patent GB-898843-A (GB)
IPC: D01H5/56
Filed: 1961-02-24
Abstract: 898,843. Drafting-apparatus. WURTTEMBERGISCHE SPINDELFABRIK G.m.b.H. Feb. 24, 1961 [March 2, 1960], No. 6898/61. Class 120(2) In locking-means for the loading-arm 2 of drafting-apparatus of the kind having a locking- lever 5 extending along a considerable part of the length of the arm, the pivot of arm 2 and the locking-point 7 being arranged closely behind the pivoting-axis 1 of the arm, the lever 5 is in one piece and is mounted at 6 on the arm 2 and carries a locking-member 7 which, in the locking position, engages a stationary abutment 8 projecting into the space between the pivot 6 and locking-member 7. Lever 5 and arm 2 are of U-section, with the walls of the former fitting over those of the latter in the region of the points 6, 7. Member 7 may be a pin carried by the side-walls of the lever and working in apertures or slots 7<SP>1</SP> in the side-walls of the arm, while the abutment 8, which may have a groove to receive the pin 7, may be on a member 3 clamped by a bolt 4 on the arm axis 1, and disposed between the walls of the arm to locate the arm axially. The bolt may have a leafspring 9, which engages with pivot-pin 6 to secure the arm in raised position.
Patent GB-331535-A (GB)
Title: Improvements in or relating to the catalytic oxidation of organic compounds, particularly toluene and like hydrocarbons
IPC: C07B35/04
Filed: 1929-01-29
Abstract: 331,535. Gas Light & Coke Co., Adam, W. G., Shannan, W. V., and Cuckney, M. Jan. 29, 1929. Divided on 331.525. Catalytic agents for use in the oxidation of toluene &c. are formed into a coherent mass with a small proportion of asbestos fibres serving as a binder. The preferred catalyst is a mixture of iron vanadate and iron oxide. It is mixed into a paste with not more than 30 per cent of asbestos fibres, and extruded in the form of rods which are broken up into short cylinders. The catalyst may be obtained by precipitation from solution in presence of the asbestos. Specifications 281,307, 286,212 and 331,525 are referred to.
Patent GB-405129-A (GB)
Title: Improvements relating to the mounting of fuel injection pumps on internal combustionengines
IPC: F02M59/02
Filed: 1933-03-08
Abstract: 405,129. Fuel - - injection pump for internal combustion engines. BISCHOF, B., 16, Tobelstrasse, Winterthur, Switzerland. March 8, 1933, No. 7015. Convention date, March 10, 1932. [Class 102 (i).] A fuel-injection pump for a multiple-cylinder internal - combustion engine is arranged with all the pump bodies mounted in a plate of hard material which forms a base for them, which is in turn fixed to the engine casing. The pump bodies are preferably formed with a conical section adapted to fit into conical openings in the base plate. A base plate b is attached to the engine casing a by means such as screws provided for ready detachability, the base plate being made, for example, of steel. The pump body c has a flange e which abuts upon the underside of the plate b, the conical part f being held firmly by the lower flange g of the screwed cap d. The pump body has a delivery passage h and suction passage i which are in alignment with passages t and s in the base plate. The passage i is connected also with the upper chamber d which contains a valve controlled by a counter-plunger k adapted to be lifted by the main plunger l and thus determine the cut off point of delivery.
Patent GB-626097-A (GB)
Title: Improvements relating to the assembly of precast concrete structural units
IPC: E04B1/22
Filed: 1947-03-13
Abstract: 626,097. Pre-stressed concrete structures. STRUCTURAL & MECHANICAL DEVELOPMENT ENGINEERS, Ltd., GOLDBERG, A., and BAK, J. March 13, 1947, No. 7025. [Class 20(iv)] Pre-cast concrete structures are assembled by joining together column units and limbed units to which beam and/or truss or girder elements may be secured, by non-bonded cables threaded through tubes or cored holes and tensioning the cables to form a pre-stressed assembly. As shown in Fig. 2 two column units 1 and a limbed unit 8 are joined together by the cable 2 extending through the tube 3 and tensioned and secured in the cups 4 by known means. At the cupped end each column unit is rebated at each corner to expose the threaded ends 6 of the reinforcement 6a and the assembly shown in Fig. 2 can be coupled to a similar assembly by means of sleeves 7 and thus any desired structure can be built up, the lower ends of the columns being fixed in known manner in foundation blocks. As shown in Fig. 4 each limbed unit has four limbs and the outer end of each limb is rebated at 10 to seat the rebated ends 12 of a beam 9, connection being made by screwed couplings 18, Fig. 2. In a modification the limbed unit may take the form of a box-like casting, e.g. of a light metal alloy provided with integrally cast limbs; the box being filled with concrete and trusses or the like secured to the limbs by riveting or welding. Specifications 541,160, 541,437, 543,249, [Group I], and 603,695 are referred to.
Patent GB-674210-A (GB)
Title: Improvements in or relating to circuits for electronic computing and storage devices
IPC: G06F7/498
Filed: 1950-03-21
Abstract: 674,210. Digital electric calculating-apparatus. REMINGTON RAND, Inc. March 21, 1950 [May 3, 1949], No. 7077/50. Class 106 (i). An electronic accumulator including a denominational - shifting circuit comprises a double-valve trigger stage for each digit of each order, a double-valve gate stage associated with each trigger stage for controlling the application of a shifting pulse to the corresponding trigger stage of the next higher order, circuits for coupling the anodes of each trigger stage to the associated gate stage for changing the potentials of its control electrodes when the trigger stage is actuated, and circuits for coupling the anodes of each gate stage to the control electrodes of the corresponding trigger stage in the next higher order. Only one trigger stage with its associated gate stage of each of three orders of a decimal accumulator is shown. Each of the triggers comprises a double triode 26, 27 or 28, the left-hand section of which is normally conducting. The anodes of each trigger, e.g. 27, are resistance-coupled to the grids of a double-triode gate stage, e.g. 40, so that, according to the state of the trigger one or the other section of the gate is primed. On receipt of a positive shift pulse, applied via a line 22 to all of the grids of the gate stages, the primed section of each of the gates produces a negative pulse at its anode. The anodes of each gate stage, e.g. 40, are capacity-coupled to the grids of the corresponding trigger, e.g. 28, of the next higher order, and consequently, each trigger is switched or not, according to its previous condition, so that each assumes the previous condition of the corresponding trigger of the next lower order. Each gate stage 46 of the highest order is coupled to the corresponding trigger 26 of the lowest order and consequently, after each denominational shift, the digit registered in the lowest order is that previously registered in the highest order. In a modification, Fig. 3 (not shown), the same results are produced by coupling each grid of each gate stage to one anode of the associated trigger and also to one anode of the corresponding trigger of the next higher order. One section of a gate is only opened when both of the anodes to which its grid is connected are at a high potential (the corresponding trigger sections being non- conducting). The shifting pulses are applied to the line 22 by a pulse generator, Fig. 2 (not shown), comprising a multivibrator which oscillates while a control signal from a control unit (not described) is applied to it. The arrangement is applicable to multiplication or division by repeating methods and to the reading out of the amount registered in the accumulator, in which case a step-by-step recording means, such as an electric typewriter, is coupled to the highest order to print the digits registered therein successively during a series of denominational shifts.
Patent GB-645859-A (GB)
Title: Improvements in and relating to the manufacture of cosmetics
Inventor: PEPPER WILLIAM PATRICK
IPC: A61Q1/12
Filed: 1948-03-08
Abstract: An oil-in-water emulsion of a mixture of mono- and tri-glycerides is produced with or without emulsifying agents. Specified emulsifying agents are a fatty acid soap of triethanolamine and an alkali metal (see Group VI). Specification 511,827 is referred to.ALSO:Cosmetics are prepared by incorporating therein an oil-in-water emulsion of one or more triglycerides and one or more monoglycerides with or without emulsifying agents at any convenient stage of manufacture.  The emulsifying agent may be a fatty acid soap of triethauolamine and/or an alkali metal.  In examples the emulsion is prepared by warming sweet almond oil, glyceryl mono-stearate and the propyl ester of p-hydroxy benzoic acid (preservative) to 75 DEG C. filtering, stirring whilst an aqueous solution of triethanolamine is added; the stirrinig continuing until temperature drops to 45 DEG C.  The emulsion is added to kaolin thoroughly mixed with the talc, more kaolin magnesium carbonate (which contains the perfume) and titanium oxide successively added, followed by magnesium stearate and colouring.  Specification 511,827 is referred to.
Patent GB-313112-A (GB)
Title: Improvements in or relating to the manufacture of fibrous material and moulded articles
IPC: D21J1/08
Filed: 1928-03-07
Abstract: 313,112. McCord, S. F., and Dorcam MachÚ Co., Ltd. March 7, 1928. Fibrous plastic compositions.-For the manufacture of fibrous material and moulded articles, waste paper is ground into a woolly dry form, after which starch and sufficient water to make the mixture moist are added, and thoroughly mixed. The proportions may be in the range of 100 parts by weight of starch to between 80 and 120 parts of paper; 56 to 60 parts of whiting may be added. The material is put into heated moulds, and formed in heated presses. On cooling a hard material, capable of being trimmed, buffed, sized, and turned, is obtained.
Patent GB-244396-A (GB)
Title: Improvements in or relating to telephone lines or cables
IPC: H04B3/00
Filed: 1925-03-17
Abstract: 244,396. Siemens & Halske Akt.-Ges. Dec. 9. 1924, [Convention date]. Addition to 230,495. Repeating and amplifying systems.-The parent Specification relates to a system in which (a) impedances are added to short inter-amplifier line sections to make each of them equivalent for the speech band to the longest section in the system or (b) several sections are treated so that taken together they are equivalent to a corresponding number of normal sections. According to the present invention artificial lines suitable for use in the parent invention are made as shown of an inductance L, resistances R, W, and, optionally a condenser C.