baber/WOPTO huggingface dataset:
Patent GB-1112990-A (GB)
Title: Cutting mechanism for fodder plants
Inventor: GRENZEBACH HANS
IPC: A01D34/13
Filed: 1967-04-06
Abstract: 1,112,990. Mowing machines. KARL MORTL-VERWALTUNGS G.m.b.H. 6 April, 1967 [7 April, 1966], No. 15889/67. Heading A1F. Apparatus for cutting fodder plants comprises a number of fingers, 3, 32 attached to a carrier 2 adapted to be secured to a tractor or like machine, and a row of blades 10 disposed below and adjacent the fingers and mounted for reciprocating movement relative thereto, the length of the fingers being such that the forward ends thereof do not project beyond the forward ends of the blades or project by not more than two-thirds the effective length a of the blades. The blades 10 are fastened to a bar 11 and may all have the same length as shown or alternate blades may have effective length a and intermediate blades may be shorter. The fingers are fastened to the carrier in groups of two or three and may be stamped from sheet material.
Patent GB-450046-A (GB)
Title: Improvements in and relating to the control of alternating current motors
IPC: H02P3/18
Filed: 1935-05-31
Abstract: 450,046. Alternating-current motors. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. May 31, 1935, No. 15900. Convention date, May 31, 1934. [Class 35] [See also Group XXXVII] A commutator motor has a commutated primary winding 15 connected for normal running through adjustable brushes 9-12 and contacts 27, 28, to multiphase secondary windings 6, 7, and for regenerative braking the contacts 27, 28, are opened and contacts 25 closed, so that the running connections between the brushes 10-12 and the secondary windings 6, 7, are opened, and an additional pair of brushes 13, 14 connected to a portion of the secondary winding 7, the arrangement being such that the voltages in the primary and secondary winding parts connected through the contacts 25 are approximately equal when the motor reaches standstill or a predetermined low speed. The contacts 26, 27, 28 are operated by a coil 26 under the control of a switch 29, and a contactor 30 is arranged to disconnect the motor from the supply a time interval after the regenerative braking connections are established. The motor shown has a low voltage winding 20 connected to the commutator and inductively related to the primary winding 15. Further additional brushes connected to a part of the winding 6 may be provided where a large braking effect is required. Specification 25358/11, [Class 35], is referred to.
Patent GB-476574-A (GB)
Title: Improvements in and relating to boxes with lids
IPC: B65D5/42
Filed: 1936-06-08
Abstract: 476,574. Cardboard boxes. TRIGGS, W. W. (Kunstantalt Etzold & Kiessling Akt.- Ges.) June 8, 1936, No. 15948. [Class 18] A box is made from the blank shown in Fig. 1, the part a forming the bottom, parts b, c the outer face of the side wall, parts f, i<1>, the inner fan of the side wall and parts h being interlocked to hold the box erect. Flaps g, k lie along the bottom and flaps d, e are secured across the corners on the inside. The box then has the appearance shown in Fig. 3, bottom o having been attached and a frame m being shown as inserted in the body on which rests a lid shown in Fig. 4, the lid having on its upper surface a small collapsable box p which when erected serves as a handle. An alternative form of blank is shown in Fig. 6 the walls 2 being joined to the bottom by pieces 1 which fold downwardly from the bottom without tabs 3 being then secured to the sides. Tabs 5 are employed on the other side. Feet 7 are also provided, the box having the appearance shown in Fig. 7. A lid is formed from a sheet shown in Fig. 8 folded along the lines indicated to meet a small collapsable box 12 serving as handle.
Patent GB-566138-A (GB)
Title: Method of dispersing antioxidants
IPC: C08J3/215
Filed: 1942-11-11
Abstract: An antioxidant &c. melting or softening below 80 DEG  C., e.g phenyl-a -naphthylamine, wax, or rosin, is emulsified in molten condition in water, and the emulsion cooled to solidify the antioxidant &c., and one or more compounding ingredients, e.g. phenyl-b -naphthylamine is or are added in a finely-divided condition, and the dispersion stirred and added to rubber latex or synthetic rubber emulsions.  The process avoids difficulty experienced in grinding low-melting-point substances to a state of fine sub-division.
Patent GB-919645-A (GB)
Title: Improvements relating to windscreen wipers
IPC: B60S1/38
Filed: 1959-06-16
Abstract: 919,645. Windscreen wipers. TRICO PRODUCTS CORPORATION. June 16, 1959 [June 16, 1958], No. 15978/60. Divided out of 919,644. Class 138 (1). A windscreen wiper blade 10 has a harness consisting of a primary yoke 19 which is pivoted at one end to one end of the blade 10 and at an intermediate point to a wiper arm 15, and a secondary yoke 22 which is pivoted at one end to the other end of the blade 10, at an intermediate point to the other end of the primary yoke 19 and at its other end to means for transmitting pressure to intermediate points along the blade 10. In the example described, this latter means comprises a third yoke 26. The yokes 19, 22 have lugs 21, 24 respectively at their outer ends slidably engaged around the tapered ends of a flexible backing strip 20 on which the blade 10 is mounted and the yoke 26 has lugs 27 at both ends for engaging recessed portions 28 of the backing strip 20.
Patent GB-845025-A (GB)
Title: Improvements in or relating to pumping arrangements for handling liquefied gases
Inventor: GRIFFITH ALAN ARNOLD
IPC: F04D9/00
Filed: 1957-05-20
Abstract: 845,025. Centrifugal pumps. ROLLSROYCE Ltd. April 28, 1958 [May 20, 1957], No. 16004/57. Class 110 (1). A pumping arrangement for handling liquid hydrogen comprises a pump, gas-type refrigeration means using hydrogen as the working gas wherein the hydrogen gas is expanded to be supercooled, and heat exchange means through which the liquid hydrogen and hydrogen gas pass so that the liquid hydrogen is cooled just prior to entry into the pump. Liquid hydrogen flowing to a centrifugal pump 10 is cooled to a small extent in a heat exchanger 13 immediately before entering the pump, for the purpose of preventing cavitation at the eye of the pump due to boiling. Gaseous hydrogen is used as the coolant, and after leaving the heat exchanger 13 it is circulated by a blower 14 through a heat exchanger 15, in which it is cooled by the liquid hydrogen leaving the pump 10, and is supercooled in an expansion turbine 17 before returning to the heat exchanger 13. Pump 10 is driven by the turbine 17, and the blower 14 is driven by an external power source.
Patent GB-1156747-A (GB)
Title: A Tool for Cutting Tubes and the like.
Inventor: MCGUIRE THOMAS BOYLAN
IPC: B23D21/14
Filed: 1967-04-07
Abstract: 1,156,747. Cutting tools. T. B. McGUIRE, and A. POGAN. 7 April, 1967, No. 16043/67. Heading B3C. A tool for parting off and chamfering a tube 11 comprises a shaft 12 rotatable by a ratchet wrench 20, a cutter 29 slidable in a bore 13 in the shaft, a rod 23 movable in an axial bore in the shaft for adjusting the cutter radially, and a spring-urged block 27 for holding the cutter in bore 13. Rod 23 is screw-threaded at 23A, and co-operates with a thread in the axial bore of the shaft 12 so that the rod moves axially to engage the cutter when rotated by a knob 24. The depth of cut of the tool is controlled by a collar 18 adjustably located on shaft 12. In order to adapt the tool so as to operate on tubes of larger diameter at least one adaptor 30, Fig. 6, is provided, which is located on the shaft 12 by keys 30A and a spring-urged ball detent 31. Spring-urged block 27 may be replaced by having a cutter which is magnetized.
Patent GB-1426055-A (GB)
Title: Circuit arrangements
IPC: H03C1/54
Filed: 1972-04-07
Abstract: 1426055 Balanced modulators PLESSEY CO Ltd 5 April 1973 [7 April 1972] 16072/72 Headings H3R and H3T A balanced modulator comprises an operational amplifier A having two inputs and an output, a gain defining network including resistances R 1 , R 2  of equal value associated with one of the inputs, a switch TR 2  connected between a signal input terminal V 1  and the other input, of modulating switch TR 1  associated with the other input, the switches being arranged to conduct alternately in response to an applied modulating signal V s . The switches TR 1 , TR 2  may be formed by MOS transistors, complementary FETs, bipolar transistors or diode bridges. In operation, when TR 1  is on, TR 2  is off and provides a high resistance path. The non-inverting input is grounded and the output V 0 =-V 1 . When TR 1  is off, TR 2  is on and provides a low resistance path for the rapid leakage of spurious charge at the non-inverting input. The voltage V 1  appears at both the inputs and in the absence of current flow in R 1 , R 2  or R 3 , the output V 0  = V 1 . Thus the input signal V 1  is switched periodically, i.e. modulated by the modulating signal V s .
Patent GB-641095-A (GB)
Title: Improvements in or relating to chlorinated thiophenes and to insecticides and fungicides containing them
IPC: G01N29/07
Filed: 1947-06-18
Abstract: 641,095. Testing materials by supersonic vibrations. FIRESTONE, F. A. July 8, 1947, No. 17988. Convention date, May 27, 1940. [Class 118 (ii)] Relates to the interior inspection or measurement of a solid object or of a confined liquid or gas by means of ultrasonic mechanical waves. In one form the complex oscillation arising as a result of reflections from discontinuities is converted into an electric oscillation whose characteristics (derived from the discontinuities) may be observed, e.g. by application to a cathode-ray oscilloscope. In another form means are provided for determining the time of travel of a pulse through at least part of the material under test. As shown mechanical pulses are produced in a metal bar 1 under test by an electromechanical transducer 2, e.g. a piezo-electric crystal attached by a film of oil 3, energized by high-frequency oscillatory voltage pulses of the form shown graphically at 5. These pulses and their reflections from the far end of the bar or from a flaw 18 are picked up by a second transducer 4, e.g. a Rochelle salt crystal attached by wax (the transducer 2 may also be used for this purpose), the resulting voltage oscillations 11 being amplified, rectified and applied to produce vertical deflection of the spot of a cathode-ray oscilloscope 15 whose horizontal deflection period coincides with the pulse period; the peaks a, b, f in the resulting trace correspond respectively to the directly-received pulses and the first reflections from the far end of the bar and from the flaw 18, and the distance of the far end or of the flaw may be read off against a suitable scale, e.g. superimposed on the trace; the trace may be recorded photographically. To produce the pulses 5, a modulator 8 may pass the highfrequency output 7 of an oscillator 6 only during the receipt of pulses 10 from an oscillator 9 which is coupled to the linear sweep circuit 16 producing the horizontal deflections of the oscilloscope spot; circuits for the oscillators 6 and 9 and the modulator 8 are described. Alternatively, the pulses from the oscillator 9, if sufficiently short, may be applied directly to the transducer 2, or the spark discharge of a condenser through an inductive circuit may be used. A number of receiving crystals may be used simultaneously, or the receiving crystal 4 may be located elsewhere, e.g. at the far end of the bar; the length of a coiled bar may in this way be determined according to the distance of the peak on the oscilloscope trace (produced by receipt of the pulses by the crystal 4) from the left-hand end of the trace. Flaws in similarly but irregularly-shaped parts having complicated reflection patterns may be detected by observation of variations from normal in such patterns. Small flaws may be detected or passed over according to the wavelength chosen for the oscillations.
Patent GB-168694-A (GB)
Title: Improvements in or relating to rotary or cylindrical brushes
IPC: D06C11/00
Filed: 1920-06-16
Abstract: 168,694. Thompson, J. June 16, 1920. Brush stocks. - A rotary brush comprises a number of aluminum cylindrical shell sections (not shown) mounted on a cylindrical skeleton frame 3 and clamped together by end plates. The frame consists of longitudinal bars 5 secured to the peripheries of pulleys 6 mounted on and secured to a shaft 4.
Patent GB-572792-A (GB)
Title: Improvements relating to the firing mechanisms of guns
IPC: F41A19/10
Filed: 1941-05-27
Abstract: 572,792. Guns. SMITH, W. H. May 27, 1941, No. 16430. Divided out of Complete Specification of 572,667. [Class 92 (ii)] The firing mechanism is controlled by triggers k on each of two handles K, L clear of the gun breech and the arrangement is such that both handles must be held by the gunner and both triggers operated before a single sear is released to fire the gun. The triggers are shown connected by Bowden mechanism to the sear f which holds back the firing pin, and the gun shown has breech mechanism and firing mechanism as described in Specification 572,667.
Patent GB-541614-A (GB)
Title: Improvements in and relating to forks for motor or other cycles
IPC: B62K25/12
Filed: 1940-11-13
Abstract: 541,614. Spring forks for motor-cycles &c. LECHMERE, W. F., and JAMES CYCLE CO., Ltd. Nov. 13, 1940, No. 16432. [Class 136 (iii)] The stem 2 is secured to a member 5a which is pivoted at one side on a pin 5 passing through a tube 9 in the said member, and at the other side has a bolt 11 passing through a tube 12a surrounded by one or more (as shown two), cylindrical, ribbed rubber buffers 10a, the bolt 11 and pin 5 being secured at their ends in bores in arms 4 on the fork 1. Washers 13 are arranged as shown.
Patent GB-476183-A (GB)
Title: Improvements relating to couplings for gas piping and the like
IPC: F16L29/00
Filed: 1936-06-13
Abstract: 476,183. Pipe couplings; stopping pipes. VALLON, C. N., WILLEY & CO., Ltd., and UNITED GAS INDUSTRIES, Ltd. June 13, 1936, No. 16577. [Classes 99 (i) and 99 (ii)] [Also in Group XXIX] In a pipe coupling in which a plug cock b is actuated by the rotation in coupling of the spigot d of a bayonet type joint, a spring- pressed nozzle c engaging a seat on the plug cock, the seat comprises a conical or spherical nipple b<1> with which the nozzle has line contact. A lock-nut f is provided and a dust-cap g is secured by a slotted U-shaped link h to the fitting a. Specification 441,337 is referred to.
Patent GB-331063-A (GB)
Title: Improvements in stereoscopic kinematograph cameras
IPC: G03B35/00
Filed: 1929-05-30
Abstract: 331,063. Smith, W. T., Smith, W. A., and Wood, S. H. May 30, 1929. No Patent granted (Sealing fee not paid). Stereoscopic kinematography: optical systems. - A stereoscopic kinematograph camera for obtaining right- and left-hand views in succession on a film fed intermittently through a taking apparatus of ordinary character comprises two mirrors, one to the right and the other to the left of the camera lens, into which the light from each mirror in turn is directed by means of a double right-angled rotary prism. The mirrors may be made movable about vertical axes, and adjusted according to the distance of the objects to be photographed, or adjustment may be effected, as in the form shown in the Figures, by altering the distance between the two mirrors, for which a fine adjustment may be provided. A viewfinding system may be mechanically associated with the taking system and comprises a similar optical system for producing an image on a screen for viewing. In the construction shown in side elevation, Fig. 2, and in plan, Fig. 3, the mirrors D are traversed by means of a screw e with right- and left-hand threads, the spindles d carrying the finder mirrors H, H<1> The light from the mirrors D is thrown on to the double prism C, which is turned through a right-angle at each feed movement of the film by means of a Maltese cross C' mounted on a vertical spindle carrying the prism and geared to the film sprockets. The double prism C consists of two right-angled prisms joined back to back along their hypotheneuses so that light from one mirror only at a time enters the lens, the change of mirror being effected by the rotation of the prism; the finder system includes a similar double prism G mounted on the same spindle as the prism C. A focusing arm b of the taking lens B is connected to one of the mirrors.
Patent GB-236730-A (GB)
Title: Improvements in apparatus for controlling the flow or pressure of fluids
IPC: G05D16/12
Filed: 1924-07-10
Abstract: 236,730. Walker, O. F. July 10, 1924. Float valves. - Apparatus for controlling the flow of fluids such as illuminating gas to a consuming device so as to transform the supply into an intermittent one comprises an enclosed chamber with a gas inlet and outlet in which is a float open at or near the bottom and having a chamber therein in which liquid can rise and fall owing to differences of gas pressure within and outside the float and a valve operated by the float for controlling the flow of gas between the inlet and outlet. The valve n which may be flexibly mounted on the top of the float l is supported by a spring k and has a central opening in the valve stem o so that the interior of the float communicates with the gas inlet g. The float l is depressed by the excess pressure of the gas coming from the inlet d and opens the valve n to pass gas to the outlet g; on account of the central opening in the valve stem o the pressure difference on the float no longer exists so that the float rises and closes the valve n whereupon the same operations are repeated. The duration of the closed interval is lengthened by fitting a flap disc valve r where by the rise of the liquid in the float is retarded and the emptying accelerated. A controlled byepass t or a small hole in the valve stem o may be provided. The apparatus may be stopped by a cock in the inlet or by means for holding the valve positively on its seating, such as a sliding plunger with a pin engaging a bayonet-joint slot.
Patent GB-534332-A (GB)
Title: Improvements in or relating to rubber spring buffers, fenders, shock absorbers, traction hooks, suspensions and the like for road and railway vehicles and rubber spring appliances forming part of machine constructions
IPC: F16F1/40
Filed: 1939-06-06
Abstract: 534,332. Rubber buffers. SOC. ITALIANA PIRELLI. June 6, 1939, No. 16620. Convention date, July 1, 1938. [Class 108 (iii)] A rubber spring buffer comprises a number of rubber strips 1 interposed between and carried by metal separator and end plates 2 with corrugations 2. The strips are vulcanized to the plates. The assembly is housed between a box 4 and a cover plate 5, and the external configuration is non-circular and is adapted to suit the space available for the spring. Instead of metal plates 2, fabric pads consisting of a pile of rubberized cotton fabric vulcanized in a mould under pressure, or a similar pile of rubberized wire net, may be used.
Patent GB-1419405-A (GB)
IPC: E03C1/01
Filed: 1973-04-06
Abstract: 1419405 Water supplies SINTACEL Ltd 8 April 1974 [6 April 1973] 16670/73 Addition to 1324042 Heading E1X The service supply system of Specification 1324042 is modified in that the waste liquid, instead of being discharged from a sink associated with a liquid outlet of the system into a movable trough and being pumped away from the trough, now passes from the sink into a receptacle connected by a riser line to a valve opening into a ceiling-located conduit from which the waste liquid is discharged when a pressure differential is created by suitable means between the receptacle and the outlet of the conduit. In the embodiment shown waste liquid passes from sink 18A through an opening 47 into receptacle 18B for removal from the receptacle by way of a float-controlled outlet through riser line 15C and conduit 43 when a suction-creating means connected to conduit 14C is actuated In a second embodiment the passage 47 is controlled by a spring-loaded valve associated with a float biassing the valve against the spring and controlling an outlet valve of a compressed air supply by which the waste liquid is driven from the receptacle when the level of the liquid in the receptacle reaches a height that will cause the spring loaded valve to close the passage 47.
Patent GB-379378-A (GB)
Title: Improvements in or relating to statistical recording devices
Filed: 1932-05-15
Abstract: 379,378. Electric signalling systems. ASSOCIATED TELEPHONE & TELEGRAPH CO., 1033, West Van Buren Street, Chicago, U.S.A. May 15,1931, No. 16692/32. Convention date. May 23, 1930. Divided on 378,531, and addition to 333,163, [Class 106 (i), Calculating &c.] Drawings to Specification. [Class 40 (i).] In perforated card-controlled apparatus (for use in departmental stores) statistical data are transmitted from a plurality of cards to a single card in a single operation. The plurality of cards is placed in a card-reading unit and the data are transmitted to a central station where the single card is perforated with these data. In the present invention a transmission line is associated with a plurality of card-reading units and with a plurality of finder switches and punching mechanisms, so that when a cardreading unit in use is connected through the transmission line to a punching mechanism, use of the transmission line is denied to any other card-reading unit until the first unit has completed its operations. A finder switch commences to seek an idle punching mechanism when the plurality of cards has been inserted in the card-reading unit and the transmitting operation has been initiated. The description and drawings are identical with those of Specification 378,531.
Patent GB-804208-A (GB)
Title: Method for making latex foam rubber
IPC: C08J9/30
Filed: 1956-05-30
Abstract: <PICT:0804208/IV (a)/1> A latex foam rubber is made by forming an acid-coagulable fluid latex foam, coagulating the foam by diffusing a coagulating acid gas at below room temperature through the foam at atmospheric pressure, and vulcanizing the coagulated foam.  Specified rubbers are natural rubber, polymers of butadiene, 1,4- or 2,3-dimethyl butadiene, and their copolymers with each other or with styrene, methyl or ethyl acrylate or methacrylate, acrylonitrile and isobutylene, as well as polychloroprene.  Specified coagulants are gaseous carbon dioxide, sulphur dioxide, hydrogen chloride or sulphide, acid-forming nitrogen oxides, a mixture of carbon dioxide and nitrogen, and a mixture of air with carbon dioxide or sulphur dioxide.  It is preferred that the gaseous coagulating fluid is at - 10 DEG  to - 20 DEG  C., the latex foam is chilled to 0 DEG  to 10 DEG  C., from 10 to 100 per cent by volume of gas is diffused through the foam and the latex foam is formed into a sheet before the coagulating.  Referring to the drawing the latex is foamed in apparatus 10, cooled by coils 11 and discharged to conveyer belt 13 which has been chilled by passing through refrigerator 14.  The latex is coagulated in chamber 17, charged through pipe 18 with coagulating acid gas, passed through vulcanizer 19, washed under sprinkler 20 and dried in drier 21.