baber/WOPTO huggingface dataset:
Patent GB-1112365-A (GB)
Title: Device for alternately filling and emptying an enclosure
IPC: A61M16/00
Filed: 1965-08-02
Abstract: 1,112,365. Artificial respiration apparatus; blood pumps. SOCIETE BERTIN & CIE. 2 Aug., 1965 [5 Aug., 1964; 9 March, 1965], No. 32945/65. Headings A5R and A5T. [Also in Divisions F1 and G3] Respiratory apparatus or a blood pump comprises a device for alternately filling and emptying a cavity 1, Fig. 2, a driving fluid eg. air or liquid-. being supplied.. through pipe 3 to nozzle 4, Fig. 1. With venting valve 5a closed and venting valve 6a opened the vacuum created in duct 5 causes the emerging jet initially to hug the wall 8a of the diffuser exhaust duct 8. Cavity 1 which may be a patient's lungs, commences to evacuate through load duct 10 and the pressure reduction is communicated through switching duct 11 to duct 6. This causes the emerging jet.to be deflected towards load duct 11 whereby cavity 1 is filled up until the increasing pressure communicated through switching duct 11 to duct 6 allows the jet again to be deflected towards wall 8a and the cycle to recommence Alteration of the setting of a valve 7a in an intercommunicating duct 7 or of venting valves 5a 6a permits adjustment of the rate of pumping and the ratio of maximum to minimum pressure in cavity 1. In another embodiment, a blood pump having a bladder (12), Fig. 3 (not shown) is mounted within cavity (1) and communicates with a pipe (14) having two non-return valves (13b), (13a) whereby the flexing of bladder; (12) causes fluid pumping in the pipe. In a further embodiment the device (2) Fig. 4,(not shown) is submerged in a liquid-filled. tank (15) into which the valves (5a), (6a) open. An electrically driven, submersible pump (16) supplies the driving liquid through a supply line having a valve-type-: by pass (20) and a pressure gauge (18). The tank may alternatively contain pressurized air or may, be maintained below atmospheric pressure by the pump (16),. In an application to a breathing mask valves 6a; 7a Fig. 1 are omitted, and valve 5a is replaced by a filter (25), Fig. 5 (not shown) which places duct (5) in communication with the patient's lungs via a breathing mask (23). In a. further application to a breathing mask a balloon (26) Fig. 8 (not shown) is connected to duct (5), Fig. 7 (not shown), so that it communicates with the patient's lungs to allow manual control of the pumping frequency.
Patent GB-434108-A (GB)
Title: Improvements in and relating to absorption refrigerating machines
IPC: F25B49/04
Filed: 1933-11-24
Abstract: 434,108. Refrigerating. WEISE, A., 25, Bismarckstrasse, Dresden, Germany. Nov. 24, 1933, No. 32957. Void [Abridged as open to inspection under Sect. 91 of the Acts, May 25, 1934]. [Class 29] Absorption machines.- The output of a con tinuous absorption re frigerating - machine is regulated by adjusting valves in the circulation connections of the appar atus to vary the distri bution of the working medium in the apparatus For instance by temporarily restricting flow from the absorber to the generator an accumulation of fluid is caused in the absorber. Similarly by restricting the flow in the opposite direction an accumulation is caused in the generator. Alternatively reservoirs b are provided in parallel with a pipe connection of the apparatus. By the operation of valves in the connections a and c of the reservoir b in conjunction with a differential pressure device d, fluid can be withdrawn into the reservoir or returned into circulation as desired. The change in the distribution of the working fluid produces the required regulation in conjunction if desired, with the regulation of the solutioncirculating pump of the machine.
Patent GB-758440-A (GB)
Title: Electric current rectifier system
IPC: H02M7/06
Filed: 1952-12-30
Abstract: 758,440. Rectifying. STANDARD TELEPHONES & CABLES, Ltd. Dec. 30, 1952, No. 32966/52. Class 38 (2). A rectifying system having a constant or other predetermined output voltage characteristic comprises two primary windings P<SP>1</SP>, p<SP>2</SP> connected in series and wound on separate links of a saturable magnetic core so that they have separate magnetic circuits, one of the windings being shunted by a capacitor C, and two secondary windings S<SP>1</SP>, S<SP>2</SP> coupled to the primary windings and connected in series to supply a load G through rectifiers D and filter F. The arrangement exhibits a series resonance when the input voltage is such that it operates beyond the " knee " of the magnetic curve of cone material, and a parallel resonance far beyond that, the normal working range being between the two resonances but very close to the series resonance. The filter inductor should be arranged to act as an inductive load and winding S<SP>1</SP> should have many more turns than winding S2. Two similar secondary windings may supply the load through two full-wave rectifiers, Fig. 4 (not shown), or suitably connected secondary windings S<SP>1</SP>, S<SP>2</SP> may supply a rectifier arrangement D with a three-phase input in the Scott connected manner, Fig. 5. In another modification four secondary windings supply rectifiers in a six-phase manner, Fig. 6 (not shown). Curves showing the variation of the magnitudes of the phase-displaced voltage across the two primary windings and of the output voltage with change of input voltage are shown for no load and full load conditions, Figs. 7, 8 (not shown).
Patent GB-1181523-A (GB)
Title: Improvements in and relating to Electric Pulse Apparatus.
Inventor: WARD WILLIAM ARTHUR
IPC: H03K3/55
Filed: 1967-07-18
Abstract: 1,181,523 Control systems for electric discharge flash-lamps. UNITED STATES SCIENTIFIC INSTRUMENTS Inc. 18 July, 1967, No. 33036/67. Heading H2H. Apparatus for recurrently igniting a gaseous discharge lamp 1 comprises a capacitor C<SP>1</SP> charged from a D.C. source over an inductor R 3  to a voltage which is insufficient to strike the lamp 1 and a second capacitor C 1  which is charged from a D.C. source over a resistor R 2  and the primary winding P of a transformer T, a silicon controlled rectifier R being rendered conductive recurrently by a train of pulses TP so as to discharge the capacitor C 1  through the primary winding P of transformer T, the voltage pulses which are thereby induced in the secondary winding S being of sufficient magnitude to strike the lamp 1 whereupon the capacitor C<SP>1</SP> discharges through the lamp giving a series of flashes, the circuit being provided with a junction type semi-conductor diode R<SP>1</SP> to provide isolation between the capacitors C<SP>1</SP>, C 1 . The lamp may be provided with a trigger electrode 7. The Specification contains references to the values of the rated peak currents, the voltage hold off ratings, the recurrent surge current ratings and instantaneous peak current ratings of the semi-conductor devices R, R<SP>1</SP>, all of which have a bearing on the manner in which the apparatus functions.
Patent GB-787777-A (GB)
Title: Travelling wave electron discharge devices
IPC: H01J23/26
Filed: 1955-11-18
Abstract: 787,777. Waveguides. STANDARD TELEPHONES & CABLES, Ltd. Nov. 18, 1955 [Nov. 19, 1954], No. 33063/55. Class 40 (8). [Also in Groups XXII, XXXVI and XL (a)] A method of manufacturing a delay line for a travelling-wave tube comprises the steps of forming grooves in a core member 11, Fig. 4, depositing conductive material on the surface of the core and in the grooves, removing the material from the core but not from the grooves and removing the core to leave the delay line formed by the material originally deposited in the grooves. The delay line comprises one or more pairs of contrawound helices or an electrically equivalent structure. A polystyrene or aluminium core 11 is grooved by machining on a lathe which produces rounded or square grooves, and if of polystyrene (as shown) is subsequently sprayed with a conductive coating. A coating or further coating of conductive material, e.g. Cu, is now formed on the core by electroplating to twice the depth of the grooves, the piece being agitated in the plating bath to prevent bubbles in the coating, and the excess is machined off in a lathe to leave Cu only in the grooves. The core is now removed-a polystyrene core by exposure to toluene vapour or possibly burnt out, and an A1 core by NaOH or KOH vapour. The polystyrene core is a tube or drilled rod filled with a stiffening rod. Less suitable methods of manufacture not forming part of the invention comprise (a) winding wire or tape, which causes overlap at the intersections of the helices, (b) grooving or slotting solid tubing, or in Fig. 3 by machining rectangular slots in a ground tube or by assembling rings and longitudinal strips and brazing them together.
Patent GB-1372172-A (GB)
Title: Selvedge cutters for looms
IPC: D03J1/08
Filed: 1971-10-08
Abstract: 1372172 Slitting fabric in looms NORTHROP WEAVING MACHINERY Ltd 8 Oct 1971 [8 July 1970] 33073/70 Heading D1E Fabric is slit on the loom by a driven rotary cutting blade 54. In Fig. 2 the sley 36 pivots a quadrant 40 to oscillate a gear 42 which, by way of a free wheel device or uni-directional clutch, rotates the cutting disc 54. A cover 76 is provided and the assembly of cutter and cover is adjustable weftwise of the loom by being clamped to a rod 60 attached to the breast beam 38. In Figure 3 the cutter is located beneath the breast beam.
Patent GB-1012646-A (GB)
Title: Automatic coupling for toy railways
IPC: A63H19/18
Filed: 1962-08-29
Abstract: 1,012,646. Model railway vehicle couplings. MECCANO (FRANCE) Ltd. Aug 29,1962 [March 22,1962], No. 33102/62. Heading A6S. An automatic coupling for model railway vehicles comprises a coupling member Fig 1b, terminating in a hook 1, a shackle, Fig 2b, pivotally journalled on said coupling member, and a draw hook 9, Fig 3 b, in the form of a bellcrank pivoted at its apex co-axially with said shackle. The couplings automatically latch together on impact, as shown in Fig 7b, and may be uncoupled by depressing together the depending ends 13, 13<SP>1</SP> of the bellcranks. The coupling is also designed to couple automatically with, and uncouple from, three known kinds of coupling. In one such coupling, a link 16, Fig 8a, is lifted upon impact with the hook 1, and subsequently drops over same, Fig 8a. Release is effected by upward pressure on the lower limb of link 16. In another such coupling, Fig. 9a, engagement and disengagement is effected exactly the same as with a pair of couplings of the present invention. In a third such coupling, Fig. 10a, the impact of the hook 9 with a bellcrank causes the hook to lift a wire link 24 over spikes 8 on the shackle of the present coupling, Fig. 10b. Disengagement is again effected by drawing the lower of limbs of the bellcranks together.
Patent GB-1345083-A (GB)
Title: Control means for sensing and regulating a supply of liquid
IPC: G05D9/12
Filed: 1972-07-14
Abstract: 1345083 Liquid level control systems MALLORY TIMERS Ltd 14 July 1972 [14 July 1971] 33120/72 Heading G3R [Also in Division G1] The level of liquid in a container 38 Fig. 3 is sensed by a temperature-sensitive semiconductor diode 40 whose temperature is raised by current from a constant voltage source 10 and lowered when the diode is covered by the liquid, the resulting change in resistance being used to maintain the liquid at the level of the diode. When the diode is exposed to air its temperature is high and its resistance low, whereby the secondary current through transformer 10 is high, the corresponding primary current producing a gate voltage for SCR 22 sufficient to make it conduct through resistor 64 during the positive half-cycles of A. C. The voltage across resistor 64 charges capacitor 58 and triggers a triac 52, allowing the A. C. supply voltage 18 to energize coil 30' of valve 32', whereby liquid from a tank 34 is fed to container 38 until the diode 40 is covered when its temperature falls, its resistance rises, SCR 22 and triac 52 are cut off and valve 32' is closed.
Patent GB-1369339-A (GB)
Title: Sols
IPC: C01B33/143
Filed: 1972-07-14
Abstract: 1369339 Silica sols E I DU PONT DE NEMOURS & CO 14 July 1972 [15 July 1971] 33152/72 Heading C1A Aq. silica sols. having a particle size >15 mÁ (which can be concentrated to a sol. having a SiO2 content of 48-55% by wt.) are prepared by simultaneously adding an aq. alkali metal silicate soln. and a cation exchanger to a heel of water containing preformed alkali-stabilized colloidal SiO2 nuclei at a rate below which new nuclei are formed, whilst maintaining the temp. of the aq. mixture at 60-150 C. and the pH at 8-11, thereby forming the acidic SiO2 in situ, and then separating the SiO2 from the cation exchanger. The preformed SiO2 nuclei may have a particle size of 4-50 mÁ. The cation exchanger may be a carboxylic acid, a phenolic methylenesulphonic acid or a sulphonated phenol-formaldehyde resin; a sulphonated styrene-divinyl benzene copolymer; a zeolite or coal, lignin or peat. Na, K or Li silicate may be used, preferably with a SiO2 : alkali metal oxide mol. ratio of 1 : 1-4 : 1. The initial SiO2 content of the heel may be 3-20% by wt. based on the final SiO2 content of the mixture. The SiO2 : alkali metal oxide ratio in the heel may be 50 : 1-250 : 1 with an alkali metal oxide content of 0À2-0À45% by wt. of SiO2 in the heel. The rate of addition of silicate and exchanger may be constant or may be increased during the addition.
Patent GB-466511-A (GB)
Title: Improvements in or relating to the sizing of paper and like materials
IPC: D21H17/60
Filed: 1935-11-29
Abstract: VIII Paper, carton, &c. is sized using an aqueous emulsion containing 0,5-5,0 per cent of wax, e.g. carnauba, montan, Japan, paraffin, or mixtures of these, with or without starch or animal glue. Specification 380,008, [Group VIII], is referred to.
Patent GB-1044408-A (GB)
Title: Improvements in or relating to a combined wire carton and reel
Inventor: LYON ROBERT CYRIL
IPC: B65D85/04
Filed: 1964-08-14
Abstract: 1,044,408. Combined cartons and reels. BRITISH INSULATED CALLENDER'S CABLES Ltd. Aug. 13, 1965 [Aug. 14, 1964], No. 33221/64. Headings B8M and B8P. A combined carton and reel is formed from two identical blanks, each blank comprising a central portion 2 having flaps 4 and a transverse strip 11 defined by slits 10, wing portions 3 and retaining tabs 14. The flaps 4, having fingers 6, are folded up to form, with the portion 2, a semi-cylindrical body, and then wing portions 3 are folded up to form the flanges of one half of a reel. On folding up the wing portions, the transverse strip 11 is forced up out of the plane of the central portion 2 to form a tie, and leave a hole 12, Fig. 2b (not shown), the wing portions 3 being glued or stapled to this tie to retain them in position. Alternatively, they may be retained by the co-operation of ears on the flaps 4 with slits in the wing portions. Two identically folded blanks are then glued together to form a reel. After winding wire &c. on to the reel, the retaining tabs 14 are folded in to cover the wire, and tongues 15 carried by some tabs interlock with slits 16 in the others, adhesive tape 19, Fig. 3 (not shown), then being applied around the periphery of the reel. The hub of the reel may be strengthened by the insertion of metal rods in holes 18. The two blanks may be held together by the winding on of the wire. The flaps 4 may have holes 7 to receive the leading end of the wire.
Patent GB-519551-A (GB)
Title: Improvements in or relating to a device for use in measuring internal dimensions
IPC: G01B5/08
Filed: 1938-11-15
Abstract: 519,551. Linear-dimension gauges. MORGAN, J. E. H., and DONNELLY, V. J. F. Nov. 15, 1938, No. 33242. [Class 106 (ii)] An internal gauge comprises a tubular member carrying oppositely disposed balls which when the member is inserted into a hole causes automatic displacement of the balls towards each other and operates indicating means through a floating or freely-slidable rod disposed between the balls. Balls 1, 2 are slidably supported in  openings 34 in a tubular holder 5. Within the holder is a rod 6 having enlarged guiding portions 7, 8 and formed at the lower end with a cone or articles, ornamental articles, lampshades, torque elements for pressure gauges &c. are built of wedge 9 which is pressed into contact with the balls by a spring disposed in a dial gauge 13 the plunger of which engages the flat upper end of the rod 6. If desired a screw micrometer or a scale may be arranged on the rod 6 and/or tube 5 or a suitable scale and vernier may be. Further a scale may be arranged as the holder 5 to indicate the depth in a hole at which the measurement is made. In the form shown in Fig. 3, the device 5, 13 is carried by an arm 18 swinging about a vertical pivot 19 on an arm 20 which is adjustably clamped to a pillar 16 rising vertically from a baseplate 17. The arm 18 carries a slide-guide 23 to which is attached a rack gearing with a pinion operated by the knob 26. A scale is provided on the slide 23 and reads against a fixed pointer 27.
Patent GB-1214740-A (GB)
Title: Improvements in or relating to a loader vehicle comprising an improved control fluid circuit
IPC: E02F3/42
Filed: 1968-07-12
Abstract: 1,214,740. Shovel loaders. INTERNATIONAL HARVESTER CO. 12 July, 1968 [27 July, 1967], No. 33327/68. Heading E1F. In a shovel loader the bias on a relief valve 58 in the hydraulic circuit 12 of the actuator 18 of the shovel-carrying, vertically swingable boom 14 of the loader is automatically increased on the boom reaching a certain elevation so that the boom can raise, if so required, a heavy load to a higher elevation. On the boom reaching the specified elevation a cam 82 on the boom 14 causes through a linkage closure of a valve 80 so that pressure fluid previously passing through the valve to a reservoir 92 is directed against a piston 98 to supplement the biassing force of a spring 72 on a valve 70 co-operating with a seat 68 to control entry of pressurised fluid from the delivery of the pump P of the circuit 12 into a chamber 64 to act on a piston 62 in a coterminous chamber 52. The piston is coupled to the relief valve 56 which is normally biassed by a spring 58 against a seat 54 at the end of the chamber 52 through which, when the valve is seated against seat 54, pressurised fluid flows to a control valve 38 of the actuator 80.
Patent GB-1515814-A (GB)
Title: Treatment apparatus
IPC: F26B15/10
Filed: 1976-08-11
Abstract: 1515814 Sterilization apparatus STORK AMSTERDAM BV 11 Aug 1976 [15 Aug 1975] 3362/76 Heading A2D [Also in Division B8] A treatment apparatus e.g. for pasteurisation or sterilization, comprises a housing 1 enclosing a space 2. Products to be treated are introduced into the space 2 on carriers 7 through a lock 5 and an opening 3 and are conveyed vertically by rotatable threaded rods 9 which engage the carriers 7. After treatment the carriers 7 are discharged through an opening 4 and a lock 6. The products may be in cans, which cans may be rotated during passage through the treatment apparatus.
Patent GB-840977-A (GB)
Title: Electrical circuit-breaking system
IPC: F15B1/02
Filed: 1956-11-01
Abstract: 840,977. Actuation of switches; contact members for switches. GRATZMULLER, J. L. Nov. 1, 1956 [Nov. 4, 1955], No. 33415/56. Class 38 (5). [Also in Groups XVIII, XXIX and XXXVI] The hydraulic operating- mechanism of a circuitbreaker is provided with a calibrated speed - limiting orifice to restrict the flow of liquid to or from an hydraulic jack so that after a high initial acceleration of the moving contact the speed of the contact is limited to a substantially constant optimum value. In Fig. 2, the moving contact (not shown) is closed by a single-acting jack when a valve 17 is opened to supply liquid from an hydraulic accumulator 11 through a sharpedged orifice 24 to the cylinder 7 of the jack, the orifice restricting the flow of liquid under pressure. The moving contact is opened by a spring 10 when a valve 21 is opened to exhaust the cylinder 7 to a reservoir 13, the flow of liquid from the cylinder being restricted by a sharpedged orifice 25. Non-return valves may be associated with the orifices so that a single conduit may be used both for the supply of liquid to and the exhausting of the liquid from the cylinder, Fig. 5 (not shown). In Fig. 10 the moving contact is operated by a double-acting jack 40, 41, calibrated orifices 51, 52 being provided in " non-return " valves 53, 54 arranged so that the supply of liquid to one or other side of the piston 41 is not restricted, but the exhaust from the opposite side of the piston is restricted. In another arrangement, Figs. 15 and 16 (not shown), a double-acting jack has one side of the piston permanently supplied from an hydraulic accumulator, the supply to and the delivery from the other side of the piston being restricted by sharp-edged orifices. In further arrangements, only the supply to or delivery from a single-acting jack or from one side of a doubleacting jack is restricted. Contact members for switches.-The axiallymovable contact-rod 1 co-operates with a fixed " tulip " type contact formed by shoe-like members 122 carried on rods mounted in fixed supports and biased by compression-springs 123. Specifications 702,088, 712,577, 735,660 and 780,763 are referred to.
Patent GB-395239-A (GB)
Title: Improvements in or relating to flexible tubing
IPC: B29D23/00
Filed: 1932-11-25
Abstract: 395,239. Rubber &c. hose. I O C O RUBBER & WATERPROOFING CO., Ltd., Netherton Works, Anniesland, KIRKWOOD, J., 68, Kelvin Drive, both in Glasgow, STONES, E. E., 18, Glenville Avenue, and CROSSLEY, J. L., 61, Athol Drive, both in Giffnock, Renfrewshire. Nov. 25, 1932, No. 33448. [Class 99 (ii).] The interior surface of a hose, gas tubing, &c., of rubber, rubberized fabric, &c., is provided with one or more, preferably four, longitudinal or helical grooves 9, corrugations 10, or slits 12, so as to permit the passage of fluid through the hose should it be kinked, flattened, or otherwise deformed. The grooves may be of rectangular, V or semi-circular form and are preferably diametrically arranged, and the hose may be reinforced by ribs 11 disposed on the exterior surface thereof opposite the said grooves.
Patent GB-412847-A (GB)
Title: Improvements in rotating basins forming gathering chambers annexed to glass furnaces
IPC: C03B7/04
Filed: 1933-11-29
Abstract: 412,847. Glass manufacture. SOC. ANON. D'ETUDES ET DE CONSTRUCTIONS D'APPAREILS MECANIQUES POUR LA VERRERIE, 3, Rue de Castellane, Paris. Nov. 29, 1933, No. 33476. Convention date, Oct. 14. [Class 56.] Relates to the apparatus described in Specifications 392,832 and 394,282 in which a rotating pot or basin, for supplying molten glass to suction-gathering machines, is made of relatively small diameter. According to the present invention, the pot is not rotated continuously but is given an intermittent rotating movement always in the same direction and with distinctly marked stopping periods, the associated forming-machine also being rotated intermittently. The movement of the pot may be synchronized with that of the forming- machine or the successive stops may be so arranged that an area of the glass which has been chilled by contact with a mould does not make contact with the mould again until the pot has made several rotations.
Patent GB-379172-A (GB)
Title: Improvements in or relating to manoeuvre signalling devices for use on vehicles
IPC: B60Q1/34
Filed: 1931-12-04
Abstract: 379,172. Road-traffic signals on vehicles. BOSCH AKT.-GES., R., 4, Militõrstrasse, Stuttgart, Germany. Dec. 4, 1931, No. 33603. Convention date, Dec. 31, 1930. [Class 118 (ii).] A casing for accommodating a movable signal arm on a road vehicle is formed by bending a single stamped sheet metal plate having a rectangular middle piece 1 which forms the back wall, a pair of side wings 10, 11 forming the side walls, and a pair of recessed extensions 2, 3, one at least of which i s o f greater length than the width of the wings and is bent twice at right-angles to form one end wall of the casing and a partial front wall. At the intermediate stage of bending represented by Fig. 2, the casing is chromium-plated. When the bending is completed the flaps 12 are welded or riveted to the side-walls.