baber/WOPTO huggingface dataset:
Patent GB-234572-A (GB)
Title: A new or improved method of and apparatus for casting molten substances
IPC: B22D18/04
Filed: 1924-03-14
Abstract: 234,572. Sampson, J. J. March 14, 1924. Casting-apparatus.-A machine for die-casting seals &c. of wax &c. has a pump immersed in the molten material, the pump having floating valves for controlling the inlets for the admission of molten material and of compressed air respectively and being vertically movable so as to introduce the pump discharge nozzle into the mould orifice. The mould comprises two members 21, 20, one 21 being stationary, the other, 20, being yieldingly connected by a spring 24 and lug 16 to a slide 13 which is reciprocated by a crank 15. A plate 17 secured to the slide is provided with cam slots 18 for actuating through links 46 the lateral cores 40. A link 29 pivoted to the frame at 30 is connected to a sprue shearing-blade 22 and to a rod 31 which is formed with a plate portion 34 and has a yielding connection by means of a spring 32 with a fixed bracket. The plate 34 has a recess with a projection 36 and slides over a plate 37 having a corresponding recess but no projection. A spring-pressed pawl 39 on the slide 13 is adapted to ride along the edge of the plate 37. On inward movement of the slide 13 the mould parts and core-pins are positioned and while so assembled a cam 68 on the main shaft 4 rocks a lever 66 to elevate the pump 61, the latter being immersed in molten material in a heated container 60 and having floating ball-valves 72, 74 at the compressed air and molten material inlets respectively. The pump having been positioned with its nozzle 70 in the aperture 28 of the cutter 22, a second cam 96 actuates a slidevalve rod 86 whereby compressed air is delivered from a pipe 79 through a pipe 80 to the pump. After casting, the valve is closed, the pump lowered, and the slide 13 moved forward. During this movement, the pawl 39 engages the projection 36 and operates the cutter 22 to sever the sprue, but immediately afterwards the pawl is disengaged by the edge of the plate 37. Continued forward movement of the slide 13 withdraws the core-pins and causes a stop 27, carried by the slide, to open the mould, the cast article remaining in the moving part of the mould owing to nibs 20<a> therein. A stop 59 on the part 20 of the mould then contacts with a rack 49 which operates a spindle 54 carrying pivoted arms 56 working through cam slots in a plate 57. These arms grip the cast article and deliver it to a shoot 69.
Patent GB-184210-A (GB)
Title: Improved means for controlling the speeds of groups of machines and the like
IPC: F16H9/08
Filed: 1921-03-01
Abstract: 184,210. Happer, J. R. March 1, 1921. Speed maintaining systems.-In driving gear for the several sections of a paper making or like machine of the kind in which e a c h section is driven by a separate motor provided with an automatic speed regulating device, the speed regulating devices are driven in series so that the adjustment of one varies the speed of the succeeding sections. The speed regulator is of usual screw and nut type in which the nut is driven by belt g<1> from a pulley g on the motor e and the screwed shaft c is driven by a belt b<2> from a pulley b on a shaft a in the preceding section of the machine. Axial movement of the shaft c sets a rheostat k and varies the speed of the motor e. In a modification, the speed regulating devices are driven by electromagnetic clutches in series with the respective motor from a series of shafts driven in series by variable speed gear, so that if one section is shut down, the succeeding sections are not arrested.
Patent GB-641702-A (GB)
Title: Improvements in electric magazine fuse boxes
IPC: H01H85/28
Filed: 1948-03-04
Abstract: 641,702. Fusible cut-outs. ROGERS, D. W. W. March 4, 1948, No. 6742. [Class 38 (i)] A magazine fuse-box comprises a carrier member 15 rotatable step-by-step. and on the periphery of which are mounted contacts 46 projecting to engage spaced contacts 26 on the stationary bases 24, 25, the contacts 46 co-operating with movable contacts 37 on the peripheral clamps 36 which secure on the member 15 the fuse wire 48 from a spool 49. The member 15 has a ratchet wheel 17 actuated by a pawl 65 pivoted to a spring-loaded rod 60 which has a bracket 59 bearing on a cam surface 58 mounted on the spindle 18 of a snap-action switch operated by a side lever 19 external to the box (Fig. 2, not shown). The clamps 36 are opened by a face cam 42 (Fig. 4, not shown), on which slide pins 44 which move the clamp springs 39 and the clamps secured thereto. The separate pieces of wire between the contacts on each clamp are cut by a spring- loaded knife 52 which snaps into and rides out of slots 31 on the periphery of the member 15. To remove the remnants of a blown wire, a scraper 56 is mounted in the box to engage the appropriate surfaces of the. clamp contacts 37 and the projecting contacts 46. According to the Provisional Specification a gauge with guide grooves may be provided to feed the wire on to the member 15 and the clamps 36 may be individually spring-controlled on a pin and insulated therefrom and from the member 15.
Patent GB-640007-A (GB)
Title: Improvements in and relating to circuits for separating electric oscillations of different frequencies
IPC: H04N5/10
Filed: 1947-03-11
Abstract: 640,007. Television. FERGUSON RADIO CORPORATION, Ltd., and CLARK, R. G. March 11, 1947, No. 6823. [Class 40 (iii)] [Also in Group XL (c)] In a circuit for separating the two frequency components of a complex signal a voltage representative of the complex signal is produced across two impedances which are so coupled that the resultant voltage across one of the impedances is representative of one only of the frequencies of the complex wave. The Figure shows a circuit for separating the line and frame synchronizing pulses of a television synchronizing signal. The composite synchronizing signal applied across T1, T2 is produced across load resistors R1, R2. Capacitor C1 and resistor R2 together form a differentiating circuit so that line synchronizing signals alone are fed back from anode to cathode, their amplitude being such that they balance out the line synchronizing signals produced across resistor R2. Thus the voltage across the output terminals T3, T4 comprises frame synchronizing signals only.
Patent GB-521736-A (GB)
Title: Improvements in or relating to fuel injection systems or devices for internal-combustion engines
IPC: F02M47/02
Filed: 1938-11-24
Abstract: 521,736. Fuel-injection devices. AMERY, G. Nov. 24, 1938, No. 6843/40. Divided out. of 521,722. [Class 7 (iii)] A fuel-injection valve having a piston for opening the valve by fluid pressure, as this is, controlled periodically by a distributer valve, is provided with an auxiliary cut-off valve arranged to open the fuel-supply passage to the injection valve when the opening-piston is operated, and to close the passage when the fluid pressure opening the injection valve is released. The Figure shows an injection valve 17 connected to a piston 28, to the underside of which fuel or other fluid pressure is supplied by a distributor valve to assist a spring 36 in raising the piston 28, whereupon fuel pressure, supplied at 54 and through passages 59, 34, 35 to a space 19, opens the injection valve against the action of a closing-spring 21. The passage 59 is opened by a passage 58 in a cut-off valve 56, which is moved to the right by the pressure admitted under the piston 28, and returned, when this pressure is released, by a spring 57.
Patent GB-515469-A (GB)
Title: Improvements in cased screw propeller type fans, pumps and the like
IPC: F04D19/02
Filed: 1938-03-05
Abstract: 515,469. Screw fans. McINTYRE, J. T. March 5, 1938, No. 6980. [Class 110 (i)] The single or multi-stage fan has inlet and outlet guide vanes 2, 4, and rotor vanes 3, and the fluid is caused to enter the rotor vanes at such an angle that. a circumferential velocity component is given to it which is opposite to that of the rotor and is greatly in excess of the drag velocity of the rotor vanes; thus increasing the pressure on the delivered fluid. The rotor vanes are of aerofoil cross-section increasing in width and total area from tip to hub. The vanes 4 cause the fluid to leave axially, thus adding to the pressure. Fluid enters the rotor in a direction V1 with axial and tangential component velocities Va, Vwa, but due to a drag component d; the effective tangential velocity opposing the direction of rotation of the vanes 3, is Vwe. Pva is the absolute linear velocity of the vanes so that Pva + Vwe = Q is the effective fluid to vane circumferential velocity, and the resultant of Q and Va = Vr is the velocity of inflow of the fluid relative to the vane. The manometric efficiency is stated to be between 0:3 and 0À5. Specification 512,487 is referred to.
Patent GB-803475-A (GB)
Title: Improvements relating to the treatment of gases and vapours containing hydrogen sulphide
IPC: C01B17/04
Filed: 1956-03-06
Abstract: <PICT:0803475/III/1> Sulphur is produced by burning a gaseous mixture comprising hydrogen sulphide and oxygen in a chamber having a defining wall, part at least of which is adapted to reflect radiant heat to the combustion zone and is provided with a plurality of narrow outlet apertures to allow escape of the reaction product gas from the chamber.  As shown, air and hydrogen sulphide-containing gas are supplied from inlets 4 and 5 respectively to reaction chamber 1 where they are ignited by an ignition device 7.  The heat of reaction is radiated back by a concave wall 8 while the reaction product gases pass through gaps 9 in said wall.  The gases are cooled first in a steam generator 10 (to below 300 DEG  C.) and then in a washer 13 sprayed with water from a nozzle 14 and recycled condensed sulphur from nozzle 17.  Liquid sulphur is withdrawn at 20.  In a modification (not shown), combustion takes place at the centre of a circular chamber, considered in cross-section through the outlet apertures.
Patent GB-1242810-A (GB)
Title: 5-(n-methylcarbamoyloxy)-1,3-dimethylpyrazole
Inventor: LORENZ WALTER
IPC: C07D231/20
Filed: 1970-02-13
Abstract: 1,242,810. Fungicides containing 5-(N-methyl -carbamoyloxy)-1,3-dimethylpyrazole. FARBENFABRIKEN BAYER A.G. 13 Feb., 1970 [15 Feb., 1969], No. 7108/70. Heading ASE. [Also in Division C2] Fungicidal compositions for the control of phytopathogenic fungi comprise 5-(N-methylcarbamoyloxy)-1,3-dimethylpyrazole and a solid carrier or a liquid carrier containing a surfactant. The compositions, which may take the conventional forms and contain the usual adjuvants, are particularly useful for treatment of seeds and soil. Examples A and B relate to the application of the fungicides.
Patent GB-371111-A (GB)
Title: Improvements in slaughtering instruments
IPC: A22B3/02
Filed: 1931-03-07
Abstract: 371,111. Holding and slaughtering animals. COX, P., 82, High Street, Bromley, Kent. March 7, 1931, No. 7128. [Classes 28 (ii) and 81 (ii).] A slaughtering device for small animals such as rabbits and poultry comprises a fixed standard 1 carrying a bracket 3 with a bifurcated end 4. The captive bolt 12 is projected by the action of a spring 16 which is compressed as described below by a lever 20 which also positions the slaughtering device over the animal's head. The animal's head is pushed through a funnel-shaped portion 10 of the fixed structure and rests in a groove 6 in a block 5, a member 8 being swung down to hold the head in position, the member 8 being held by the friction of the pivot 9. The bolt 12 carries a grooved collar 17 held in position by a nut 18 and spaced from the closure cap of the spring casing by a rubber buffer 19. The lever 20 has a slot 22 which slidably engages a removable pivot pin 23, and the spring casing is secured crosswise in this lever. To compress the spring in resetting the device, the grooved collar 17 is engaged with the bifurcations 4 and the lever 20 is swung downwardly thereby partially withdrawing the bolt from the casing. When the collar 15 on the bolt 12 passes the spring catch 24, the handle 27 is released and the catch snaps beneath the collar 15 by the action of the spring 25. The sliding of the pin 23 in the slot 22 ensures that as the compression of the spring increases compensation is effected by the increase in the leverage of the lever 20. The collar 17 is then disengaged from the bifurcations 4 and the slaughtering device is positioned on the animal's head when the captive bolt is released by pulling back the handle 27.
Patent GB-350435-A (GB)
Title: Improvements in vacuum cleaners
IPC: A47L9/22
Filed: 1930-03-05
Abstract: 350,435. Vacuum cleaners. ELECTROLUX, Ltd., 153, Regent Street, London. -(Assignees of Inventia Patent-Verwertungs-Ges. ; 10, Herrenacker, Schaffhausen, Switzerland.) March 5, 1930, No. 7241. Convention date, March 5, 1929. [Class 8 (i).] In an electrically-driven vacuum cleaner having a motor unit resiliently supported in an outer casing, the supporting means consist in spiral springs arranged between the periphery of the unit and the casing, substantially parallel to the unit axis and operatively engaging the unit and the casing. Means may also be provided for insulating the unit from the casing and for cooling the motor by some of the suction air of the cleaner. In the form shown in Figs. 1 and 2 the motor is carried by spiral springs 42 inserted in borings in hook-shaped members 34 which project from a ring 33 secured in the casing 10. This ring is separated from an outer ring 32 by a resilient packing 37 and between the two rings is secured the cylindrical fan enclosure 38 on which the intermediate plates 39, 40 are mounted. The springs are traversed by screws 45 of small diameter and are surrounded by insulating sleeves 43, with doubly coned internal bores. An alternative arrangement is shown in Figs. 4 and 7 wherein the springs 42 are jacketed in sleeves 64 and are carried in recessed lugs 49 on the motor housing. The reduced central parts of the sleeves take in bored lugs 51 formed on a ring 52 secured in the cleaner casing 10. The cylinder 38 around the fans 12 is carried by the ring 52 and encloses a screen 57 having a central opening 58 which corresponds with openings in the motor. The edge of the screen is bent down conically at 60, forming an annular diffusion channel for the air, and guide vanes may be provided in this channel to deflect the rotating air axially. Blades 61 on the righthand fan may draw air from right to left through the motor, as shown by the arrows, to cool it. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the form shown in Fig. 1 (Cancelled) in which the motor 13 is mounted next to the bacteria filter 14 in a ring of insulating material secured in the cleaner casing 10. This subject-matter does not appear in the Specification as accepted.
Patent GB-292238-A (GB)
Title: Improvements in or relating to apparatus for the measurement of liquids
IPC: B67D7/16
Filed: 1927-03-15
Abstract: 292,238. Fraser, J., and British Petroleum Co., Ltd. March 15, 1927. Measuring devices.-A measuring chamber fitted with a piston communicates with a transparent chamber so that the delivery of liquid from the former is accompanied by a visible diminution of liquid in the latter. In the form shown, a rotary pump 7 operated by the crank handle 8 through bevel gear and lost motion or resilient connections is adapted in one direction of rotation to draw liquid from a cylinder 1 and pass it into a transparent chamber 10. A piston 6 is thereby raised and the cylinder is charged from storage through a pipe 2 fitted with a non-return valve 4. The chamber 10 is provided with an air vent valve 12 and with an overflow pipe 11 leading back to storage through pipes 14, 15. If the chamber 10 is not completely filled when the piston has reached its upper limit, continued pumping will draw liquid through a spring-loaded non-return valve 17 the head of which may also have a ball valve permitting escape of air from below the piston. The measuring chamber 1 having thus been filled as denoted by the level in chamber 10 the pump may be reversely driven so as to depress the piston and discharge the measured volume through a non-return valve 5 and a pipe 3. This valve 5 is preferably arranged so as to press heavily on its seating by means of toggle links 25 controlled by a spring 24, a direct-acting spring 26 also being provided if desired. To prevent communication between the suction and discharge pipes 2, 3, the latter pipe communicates with an upstanding annulus 21, a spring-controlled seating 22 on which is engaged by the piston in its lowest position to cut off communication. To relieve excess pressures in the apparatus a by-pass 36 fitted with non-return valves 38, 39 may be provided. In a modification the pump is of the reciprocating-piston type. Stroke, varying.-The upper limit of travel of the piston is determined by a stop 18 threaded into its support 31 and rotatable by a worm and spindle 34 to vary its height. To provide for delivery of a portion only of the standard volume a distance member loosely mounted on a thrust rod may be interposed between the piston and the stop. A similar result may be obtained by inserting a stop 29 in the path of the arm 30 forming a part of the gear for operating the counting or indicating mechanism from the rack and pinion 27, 28.
Patent GB-370153-A (GB)
Title: Improvements in pneumatic blast apparatus for projecting material in bulk
IPC: E21F15/10
Filed: 1931-03-09
Abstract: 370,153. Pneumatic conveyers. PALISA, H., Horni-Suchau, Mahrisch- Schlesisches Land, Czecho- Slovakia. March 9, 1931, No. 7266. [Class 78 (i).] Means for conveying granular &c. material to fill cavities in mines comprise a blast conduit with an inlet for the material in its wall, air jets between said inlet and the discharge end of the conduit and further air jets on the opposite side of said inlet. In Figs. 1 and 4, the material is delivered from a convever through a hood 17 and hopper 2 into a cylindrical or tapered pipe 1 universally movable on a support 16. An air chest 3 at the rear of the pipe delivers compressed air through a nozzle 5 and smaller nozzles 6, 7, arranged as in Fig. 5, to form an air envelope around the material, the nozzles being flared as in Fig. 10 towards the centre of the pipe 1; an opening 3<1> allows entry of atmospheric air by suction. At the front of the pipe, further air jets 11 .. 14 are provided. A detachable discharge trunk 4 is provided at the front of the pipe, an annular passage 15 being provided for admission of air from the atmosphere ; the lower wall of the trunk slopes upwardly. Intermediate air nozzles 8, 9, 10 may also be provided and further nozzles may be arranged in the pipe 1 or trunk 4 to deliver water in jets or spray. The pipe 1 and trunk may have detachable metal &c. linings. In a modification, the pipe 1 and trunk 4 are duplicated and a hinged flap is provided whereby one or other set may be cut out if desired. In Fig. 13, the blast apparatus is universally mounted at 35 on arms 34 pivoted on a fixed shaft 32 and adjusted by a screw 36 ; the shaft 32 is carried by bearings 28 adjustable by screws 33 on a frame 24 which carries a lamp 39 and is adjusted about a pivot 23 by pinions 27 and toothed segments 25. The material is supplied by a belt conveyer 31 passing round a roller 30 axially movable on the shaft 32 and provided with lateral guides 37. The whole is carried by a truck 21 moved by a motor 40, winch 41, and cable 42.
Patent GB-379998-A (GB)
Title: Improvements in and relating to safety razors
IPC: B26B21/28
Filed: 1932-03-11
Abstract: 379,998. Safety razors. LARSEN, C. C., 28, Amagerbrogade, Copenhagen- March 11, 1932, No. 7310. [Class 30.] Clamping and protecting plates for a safety razor are formed by bending the plates obliquely over a cylindrical mandrel 2, Figs. 1 and 2, having plane surfaces 4. The surfaces are located beneath the edges 3 of the plate which are thus bent below the surface of the cylinder and become rectilinear. The ordinary type of safety razor blade may be used but in order to secure better guiding of tie blade, a blade is used which has recesses 6, Fig. 3, in the usual holes 5, the recesses cooperating with lugs on the usual guide pins in the clamping plate.
Patent GB-1037092-A (GB)
Title: Automatic readjusting and feeding device for a hydraulically operated scraping device in a peeler centrifuge
IPC: B04B11/04
Filed: 1964-02-21
Abstract: A device for scraping the inside bore of a rotating centrifuge drum 1 comprises, tools 4 carried by a spindle 6 which is axially p reciprocated and angularly movable in step wise fashion by hydraulic pistons 7 and 13.  Spindle 6 is keyed to a hydraulic cylinder 8, which is rotatably carried in housing 10 by bearings 9.  Spindle 6 is connected to a control spool 24 by a lever 18, and the spool is connected to dosing pistons 31, 32.  In operation, oil pressure is supplied from a tank 21 through conduits 19, 22 and 23, to both faces of piston 7, and spindle 6 moves to the right Fig. 3 (not shown). Spool 24 is centralized by spring 25, 26, until the collar 27 of piston 7 engages a collar on rod 28, and moves the latter to the right.  Spool 24 is moved to the left by lever 18 and conduit 19 supplies oil to the left hand end of piston 31 through conduits 29, 30.  A charge of oil displaced by piston 32 passes through conduits 35, 36 into the top of cylinder 14 thus pivoting tools 4, to feed the latter toward the bore of drum 1.  A control sleeve 38 is moved to the right by piston 31 to separate conduit 23 from conduit 19, and connect conduits 23, 20.  Pressure is supplied to piston 7 through conduit 22 only, and the piston is moved to the left.  Spool 24 is moved to its right end position thus connecting conduits 19, 29, 35, to move pistons 31, 32 to the left, to force oil from chamber 33 through conduits 30, 36 into cylinder 14, to further feed the tools. The angular movement of the tools is limited by a stop 16, and the stroke of pistons 31, 32 is adjustable by a screwed spindle 43.  The material scraped off is removed by a shoot or a conveyer screw.
Patent GB-1170023-A (GB)
Title: Computer Switching Systems
IPC: G06G7/06
Filed: 1968-02-15
Abstract: 1,170,023. Analogue computer programme switching. APPLIED DYNAMICS Inc. 15 Feb,. 1968 [21 March, 1967], No. 7521/68. Heading G4G. In an electric analogue computer (Fig. 1) a range of integrators I1, 12 &c. are connected over electric switches ES1, ES2 &c. to inputs 14 &c. of a patchboard, the switches conditioning the integrators to " operate " or " hold." A " hold " bus 16 carrying logic signals of two voltage levels is connected to operate the switches between these conditions over resistors R2, R2a &c. and NPN transistor emitter follower operating circuits 18, 26, and logic signals of two voltage levels applicable over patchboard terminals 11 or 11a &c. relay contacts 10, 10a &c. and resistors R4, R4a &c. to the emitter follower inputs enable the bus logic signals to be overridden for integrators selected by the connection of a logic circuit 25 to the appropriate patchboard terminal over cord 9. Energization of relay HA over terminal 17 changes over contacts 10, 10a &c. to disable the patchboard terminals 11, 11a &c. and the bus logic signals are overridden for all integrators by signals from an instruction register 27. Alternative operating circuits (Figs. 2a, 2b, not shown) introducing a logic sign change comprise a grounded emitter transistor circuit, or a FET transistor circuit. Two bus-bars such as 16 may each control two electric switches through corresponding emitter followers, giving four possible switching combinations utilized to control the integrators in the " reset," " operate " and " hold " modes. In a modification (Fig. 3), the analogue output of a D/A converter, function generator or integrator (not shown) is connected to bus 36 which energizes over resistors R3a, R3 the differential amplifiers A2, A3 with outputs reconnected to negative inputs. Such outputs energize integrators I1, I2 over scaling resistors R9 and electric switch ES4 conditioning the appropriate integrator to " operate " or " hold." Patchboard terminals 37, 38 enable analog signals to be applied to points 40 or 43 to override the signals applied from bus 36.