baber/WOPTO huggingface dataset:
Patent GB-732693-A (GB)
Title: Improvements in pressure reducing valves
Inventor: LONGBOTTOM GEOFFREY BRIAN
IPC: G05D16/10
Filed: 1952-12-15
Abstract: 732,693. Fluid-actuated valves. HYMATIC ENGINEERING CO., Ltd. Feb. 23, 1954 [Dec. 15, 1952], No. 31702/52. Class 135. In a pressure-reducing valve comprising a valve head a, Fig. 1, controlling the flow of, e.g., compressed air between an inlet branch d and an outlet port b, the valve stem, which is made of equal diameter to the port b to balance the valve under static pressure conditions and which mounts a piston j loaded by a spring p tending to open the valve against pressure in a control chamber i connected to the outlet, is formed with annular grooves e so that inlet pressure supplements the outlet pressure in the chamber i to close the valve a larger amount than would otherwise occur. Connection to the chamber i from the outlet is by way of an axial bore k, radial ports m, m<SP>1</SP> and leakage past the piston j. To regulate the amount of this increased closure so as to maintain a substantially constant flow through the valve independent of the supply pressure, a passage g having an adjustable restriction h connects the annular grooves e to the atmosphere. It is stated that the change in the flow direction through the valve from radial to axial produces an axial force tending to close the valve, this force increasing as the rate of flow increases causing the outlet pressure to fall excessively at high flow rates. To overcome this the valve head is enlarged beyond the port b and the valve head is shrouded by a casing u producing a differential pressure acting across the head which causes a force tending to open the valve. By suitably proportioning the valve head and the position of the entrance to the bore k it is possible partially to balance the effects of change in direction in air flow and of the spring rate. If it is required that no return flow takes place on removal of the supply pressure, the valve head a, Fig. 3, is arranged to close on a seat w under the action of the spring p. In this case the entrances to the axial bore k are arranged so that on the resumption of the supply pressure with the head a seated on w, air is supplied to the chamber i and the valve head moves towards the seat b to restore flow through the valve.
Patent GB-888244-A (GB)
Title: Apparatus for measuring of quantities of gases
IPC: G01F3/30
Filed: 1960-09-14
Abstract: 888,244. Gas meters. ENGSTROM, C. G. D. Sept. 14, 1960 [Sept. 16, 1959], No. 31714/60. Class 54. Apparatus for metering gas, such as oxygen or laughing gas, comprises a tank 2 from which gas is forced by liquid from a tank 1 at a higher level and the cross-sectional area of either or both tanks varies at different levels so that the amount of gas being expelled does not vary with the liquid head in the tank 1. The tanks may be of curved, conical or pyramidal shape or may contain cones 11, 12 or a number of rods of different length. When a valve 27 is set to connect a supply pipe 28 to the gas tank 2, liquid in the tank is forced up a connecting pipe 8 to the liquid tank 1. On changing over the valve, the liquid returns to the tank 2, expelling the gas to the supply pipe 29 of a respirator, and the amount expelled can be ascertained by observing the graduated rod 22 of a float 21. The tanks may be transparent or gauge glasses 13, 14 may be provided. A pressure gauge 33, and the float rod 22, may be connected to a recorder. Specification 693,332 is referred to.
Patent GB-990471-A (GB)
Title: Ion exchange resin compositions
IPC: B01J39/16
Filed: 1961-09-04
Abstract: A free-flowing ion-exchange resin composition comprises particles of a dry, macroreticular-structured sulphonic cation-exchange resin in the hydrogen form in intimate admixture with at least one equivalent of a powdered anhydrous alkaline sodium salt per equivalent of sulphonic acid group in the cation exchange resin. "Macroreticular-structured" is used to denote resins which (a) contain microscopic channels separate and distinct from and large in comparison with the usual micropores in cross-linked polymers and (b) have specific surface areas of at least 2 square meters per gram as measured by the B.E.T. technique.  Preferred resins are those prepared by the sulphonation of a copolymer of a monovinyl aromatic hydrocarbon and a polyvinyl aromatic hydrocarbon. In examples, the resin is a sulphonated styrenedivinylbenzene copolymer containing 20% divinylbenzene and prepared by the method given in Specification 932,126. Portions of particulate resin are mixed with ground sodium hydroxide, sodium carbonate, sodium bicarbonate and dehydrated borax. Reaction to give the sodium form of the ion-exchange resin takes place only when water is added to the mixtures.
Patent GB-144994-A (GB)
Title: Improvements in submarine vessels for dredging, excavating and salving on the sea bottom
IPC: B63C11/44
Filed: 1919-12-18
Abstract: 144,994. Warluzel, C. Jan. 16, 1919, [Convention date]. Submarine vessels. - A submarine dredger, workshop, or salvage vessel is fitted with endlesschain tracks for the purpose of propulsion along the sea bottom. The vessel a is divided into compartments, one of which constitutes a safety cham. ber d for egress through the hatchway e. Endless tracks h are operated from an electric motor k through shafting. A suction dredger pipe or external tools operated from within the vessel may be fitted. The vessel is raised or lowered by the frame c.
Patent GB-1531119-A (GB)
Title: On demand fluid pump
IPC: H02K33/10
Filed: 1977-07-28
Abstract: 1531119 Reciprocating dynamo-electric machines FACET ENTERPRISES Inc 28 July 1977 [29 July 1976] 31820/77 Heading H2A [Also in Division F1] In an electrically driven reciprocating pump comprising a magnetically permeable bucket piston 22 reciprocable by a solenoid 20 and a spring 24, the latter effecting the upward pumping stroke; the solenoid 20 is energized and de-energized by a circuit which includes an oscillator 62 which generates sampling signals in the solenoid at predetermined intervals, a sample pulse detection circuit 80 connected to receive output signals indicative of the piston position and which are induced in sensing coils 18, 19 by the sampling signals, and a bistable switch circuit 50 for alternately initiating and terminating current flow through the solenoid 20 in response to, respectively, a signal from the detection circuit 80 generated at the end of each pumping stroke and the next sample signal. The signals induced in the sensing coils 18, 19 are opposed and are dependent on the position of large diameter central portion 46 of the piston relative to the sensing coils. This difference signal is sensed by the detection circuit, the resulting output generated by the circuit being applied to the bi-stable circuit 50. Circuit 50 includes a JK flip-flop 58, an OR gate 56 and an inverter amplifier 60.
Patent GB-312375-A (GB)
Title: Improvements in or relating to jacking devices for motor and like vehicles
IPC: B60S9/22
Filed: 1927-11-26
Abstract: 312,375. Bridgens, W. R. Nov. 26, 1927. Axles are made with enlargements 6 which are bored for the reception of jacks 7. Back axle casings are formed with two lateral lugs which are similarly bored.
Patent GB-970796-A (GB)
Title: Improvements relating to packing materials
Inventor: SHEPPARD LESLIE ARTHUR
IPC: B65D81/05
Filed: 1962-08-20
Abstract: 970,796. Inflated cushions. LLOYD'S PACKING WAREHOUSES (HOLDINGS) Ltd. July 22, 1963 [Aug. 20, 1962], No. 31855/62. Heading A4M. [Also in Division B8] Inflatable cushions for use as packing material are made by securing together layers of material so as to define one or more separate compartments between them and by providing in each compartment before its final closure, one or more substances which may subsequently be activated in a non-reversible manner so as, by chemical or physical change, to liberate a gas and thereby inflate the compartment. Activation may be by heat, X-ray, light or other radiation or may be by pressing together layers having chemical re-agents applied thereto. The gas may be carbon dioxide or nitrogen. The substance may be sodium bicarbonate either, provided on a metal carrier for subsequent heating by electric current or, mixed with carbon black into a paste applied to the layers by localised printing, or in the form of a pellet. The packing material may be rolled or stacked in non-inflated condition prior to use.
Patent GB-1183014-A (GB)
Title: Apparatus for Production of Yoghourt
Inventor: BREUNING ERNST
IPC: A23C9/12
Filed: 1968-07-04
Abstract: 1,183,014. Yoghurt. E. BREUNING. July 4, 1968 [July 6, 1967], No.31906/68. Heading C6F. [Also in Division A2] In the production of yoghurt, containers of yoghurt in cardboard or plastics frames 11 are subjected to a circulation by air from a blower 7, Fig.5, or blowers 7<SP>1</SP>, 7<SP>11</SP> Fig.3, at temperatures regulated by heating and cooling coils 17 and 18, respectively. The apertures 25 in the supporting frame or frames 9 may increase in size towards the centre, the ratio of the maximum to minimum cross-section of the holes corresponding to the number of superimposed frames 11. Passages 26 in the frames provide for the circulation of air across the containers of yoghurt. A door (14 Figs.4 and 6, not shown) is mounted on the front wall of the chamber so as to be pivotable upwards.
Patent GB-655967-A (GB)
Title: A mechanical golf caddy
IPC: B62B1/04
Filed: 1949-09-28
Abstract: 655,967. Fastenings. SMITH, W. A. Sept. 28, 1949, No. 31966/48. [Class 44] [Also in Group XXXII] A golf-bag carrier, Fig. 2, has two wheels 16 individually journalled on stub axles 17, Figs. 7, 8, the inner ends of which axles are hooked as at 18 and are received in suitable holes 19 formed in the ends of an axle 20. The couplings so formed are held rigid by sleeves 21 adapted to slide over the axles 17, 20, and thus prevent the couplings becoming disengaged.
Patent GB-263181-A (GB)
Title: A method of and means for photographically recording sound
IPC: G11B7/00
Filed: 1926-12-17
Abstract: 263,181. De Forest Phonofilms, Ltd., (Assignees of Forest, L. de). Dec. 19, 1925, [Convention date]. Vacuum tubes. - Relates to apparatus for photographically recording sound, and consists in the provision of a luminous electric discharge device, controlled by or in accordance with sound waves from which device a thin, flat beam of light issues from a relatively small space between the opposed faces of the electrodes. The device shown in Fig. 1 comprises electrodes 4, 5 which are plates e.g. of silver or platinum, having straight edges separated by a very fine gap 6. The electrodes are mounted on a polished plane surface 7 of transparent material such as quartz ur glass. The low-pressure gas container is not in this Figure. A pressure of say 400 to 800 volts causes a luminous discharge between the electrodes. In the arrangement shown, sound-modulated voltages are impressed across a resistance 3, and the consequent light variations are recorded on a travelling film arranged either at 11 or at 9, a slit 22 being used in the latter case. A modification is described in which the electrodes are curved on the faces nearest the support 7, on which they are mounted under pressure. The adjacent edges which form the gap are bevelled in this instance. Figs. 2, 3, and 4 t show further modifications, in each of which the electrodes are mounted in an evacuated vessel, or one containing a gas such as neon under low-pressure. The electrodes 4, 5 may be mounted on a transparent plate 7, Fig. 2, or may consist of deposits of silver &c. on the support 7 or on the end of the vessel 13, Fig. 3. In the construction shown in Fig. 4, opaque members 16, such as black glass, are welded or cemented to the forward edges of two highly polished plates 15 which form the electrodes. In addition, a slit 46 is provided to cut off trans mission of light from the sides and rear edges of the plates. By this means the luminous emission towards the film 9 is restricted to a narrow plane.
Patent GB-302481-A (GB)
Title: Improvements in and relating to ice cream freezers
IPC: A23G9/10
Filed: 1927-11-29
Abstract: 302,481. Wood, L. D. Nov. 29, 1927. Rotary mixers. -- An ice-cream freezer of the kind having a rotary cream can formed with lugs engaging slots in the driving worm-wheel 3 is provided with a detachable locking-bar 1 which engages with studs 4 on the worm-wheel casing and prevents the can rising during rotation and retains the scraper frame 11 stationary while permitting the stirrer 18 to rotate. The underside of the bottom of the can is provided with blades 23 for stirring the brine in the freezer.
Patent GB-726525-A (GB)
Title: Automatic temperature control apparatus
IPC: F24F3/052
Filed: 1953-11-20
Abstract: 726,525. Automatic temperature control systems. VAPOR HEATING CORPORATION. Nov. 20, 1953 [Dec. 12, 1952], No. 32296/53. Class 38 (4). Heated air supplied through a conduit 11, Fig. 1, is mixed with unheated air supplied through a conduit 12 and is supplied through a conduit 10 to an enclosure A. When the mercury 83 in a thermostat T responsive to the temperature of the enclosure is below a contact 81 two relays B and C are energized to switch on a motor 33 driving a pump 24 supplying fluid from a reservoir 30 to a servomotor 15 which then moves a damper 13 to increase the relative proportion of heated air supplied to the enclosure. An auxiliary heater 79 produces intermittent operation. When the mercury 83 rises above contact 81 relay C is deenergized and motor 33 switched off. Damper 13 is then stationary, return of fluid to the pump being prevented by a check valve 27. If mercury 83 rises above contact 82 relay B is also de-energized and a solenoid operated valve 32 is energized so that fluid can return to the reservoir while servomotor 15 moves damper 13 under the action of a spring 21 to decrease the relative proportion of heated air. Restrictions 100 and 101 prevent too frequent intermittent operation of damper 13 and a limit switch 45 prevents excessive movement of servo motor 15.
Patent GB-470153-A (GB)
Title: Apparatus for the automatic feeding of lengths of woven material into clip or pin tenters
IPC: D06C3/04
Filed: 1936-11-25
Abstract: 470,153. Finishing fabrics. HEBERLEIN & CO. AKT.-GES. Nov. 25, 1936, No. 32307. Convention date, Nov. 25, 1935. [Class 42 (i)] Tentering.-The distance apart of the tentering chains is adjusted automatically to suit the width of the fabric s by pneumatic means which control, through relays, electric or other servomotors. At the entrance to the machine, each chain-pulley carrier also carries an air discharge nozzle d and two air receiving ducts b, a respectively above and below the fabric. The ducts a, b are connected with bellows A, B. These bellows operate the switches &c. of the servomotors. As shown, the bellows A, B operate valves m, m<1> pivoted at n, n<1>, and having convex faces o, o<1> working over concave faces of block g. The port c leads to source of air under pressure and the ports d, e lead to the opposite ends of a pneumatic servomotor cylinder. The passages from the ports c, d, e in the block g and ports p, p<1>, q, q<1> in the valves m, m<1> are so arranged that when the fabric s covers one duct b only no action takes place, but if the fabric covers both ducts b, a or covers neither, the servomotor moves the chain to the right or to the left. Fine fabrics may have a wire net support.
Patent GB-463393-A (GB)
Title: Improvements in or relating to coil assemblies for wireless receivers
IPC: H03H5/02
Filed: 1936-11-26
Abstract: 463,393. High-frequency transformers. GENERAL ELECTRIC CO., Ltd., and SPEIRS, R. W. Nov. 26, 1936, No. 32398. [Class 38 (ii)] [Also in Groups XL and XXXVI] A coil assembly for a wireless receiver is riveted to a base 6 which also carries a trimmer condenser 9 of the semi-fixed type having a bowed plate 8 and adjusting screw 10. Rotation of the bowed plate 8 is prevented by tags extending into slots in the base 6. The base is riveted to the metal deck 19 of the receiver which is formed as a screening pot 20 for the unit.
Patent GB-1112320-A (GB)
Title: Improvements in and relating to a process and apparatus for the manufacture of films or sheets of rigid thermoplastic materials
IPC: B29C43/24
Filed: 1965-07-29
Abstract: 1,112,320. Calendering thermoplastics. FARBWERKE HOECHST A.G. 29 July, 1965 [29 July, 1964], No. 32462/65. Headings B5A and B5B. Surplus thermoplastics material is removed to maintain a constant bank at the terminal nip of a calender whereby the quality of rigid film or sheet is improved by eliminating unevenly cooled material from the bank. Unplasticized thermoplastic materials e.g. P.V.C. or copolymers thereof with acrylonitrile, styrene, vinylidene chloride, maleic acid esters, esters of acrylic acid or methacrylic acid with aliphatic C 1 -C 10  alcohols, or graft copolymers thereof with an elastomeric latex based on butadiene or isoprene, are fed to a vertical multi-roll calender at a faster rate than sheet or film produced therefrom and surplus material is removed from the bank at the final nip between rolls 1 and 2 by a device which does not contact the roller surface and which separates the bank across the nip from the material entering the bank and may comprise a continuous member 4 provided with a convex section leading edge and with a trailing baffle 5 which guides surplus material from the bank into a container 10 from whence it may be returned to the feed rolls 8, 9 by a conveyer. The distance of member 4 from and the angle thereof to the narrowest point of the nip are adjustable and the outer edges of member 4 are bent upwards. The continuous member 4 may be replaced by a comb or one or more reciprocable shearing blades or a reciprocable or continuously rotating chain saw.
Patent GB-211945-A (GB)
Title: Improvements in knockdown boxes
IPC: B65D6/00
Filed: 1922-11-28
Abstract: 211,945. Frankenfeld, L. Nov. 28, 1922. Knock-down boxes; lids; battens, strengthening.-In a knock-down box of the kind in which each wall has a pair of longitudinally-extending strips which interlock with corresponding strips on adjacent walls by relative longitudinal sliding movement between said walls, all except one of the walls, e.g. the wall f, are successively connected together and the connected walls a - - d, g are such that relative longitudinal displacement between them is prevented except displacement in one direction of certain of such walls, e.g. the walls a, c, while the remaining wall f, when positioned, coacts with the walls a, c to prevent displacement thereof. The side walls b, dare connected to the bottom wall g by interlocking the strips b<1>, d<1> with the strips g<1> after which the strips e on the end walls a, c are engaged with the strips, e<1> on the side walls, the strips b<1>, d<1>, g<1> then preventing displacement of the walls b, d, g relatively to the walls a, c. The top wall f is finally slid into place, the end wall c being notched at n to permit the passage of the strips f<1> which engage strips on the side walls; longitudinal displacement of the end walls is thus prevented. The top wall or lid may be provided with a locking-device comprising a bolt j passing through apertures in adjacent portions of the walls f, c and provided with a nut k; a wire may be passed through a hole in the end of the bolt and the ends thereof secured by a leaden or other seal l. Battens a<1>, c<1> extending around and beyond the margins of the end walls, engage the end of the walls b, d, f, g and strengthen the box while further strengthening strips s, t may be secured to opposed pairs of walls to extend around the box, each strip extending beyond the edges of the wall to which it is secured and the strips s on the walls b, d engaging the ends of the walls f, g and being engaged at the ends by the strips t on those walls. In a modification, the end walls and encircling battens lie wholly within the other walls, the strengthening strips of which are disposed at their extreme ends; angle strips on the bottom wall form abutments for the lower ends of the end walls; in this modification the top wall or lid carries a bent strip engaging the outer face of an end wall and a bolt carried by the wall, which bolt may be sealed as described above. In a further form the side walls of the box are inclined.
Patent GB-1024738-A (GB)
Title: An improved paint
IPC: C09D5/16
Filed: 1963-08-19
Abstract: A paint contains calcium hydroxide dispersed in powder form in a liquid carrier comprising an organic oxidizable drying oil and has a pH value greater than 9.  The paint may also contain calcium sulphate, silicate or aluminate, zinc or zinc oxide, lead or lead oxides, or Portland cement.  The oil may be linseed, tung, perilla, soybean, fish oil or dehydrated castor oil, and may also contain kerosene.  The paint may be applied to the hulls of ships over a primer of red lead and linseed oil.
Patent GB-298402-A (GB)
Title: Improvements in and relating to discs for the wheels of road vehicles
IPC: B60B1/14
Filed: 1927-12-03
Abstract: 298,402. Barker & Co. (Coachbuilders), Ltd., and Penney, S. Dec. 3,1927. Spoke-covering discs.-Spoke-covering discs 1, 2 for wheels of the artillery-spoke type are detachably secured by bolts and nuts 6, 10 and distance-pieces 7 shaped to fit the crutches formed between adjacent spokes. The inner disc 2 may be formed with cups 9, or a continuous rib, recessed into the distance-pieces 7, and the latter may each be formed ino two parts for adaptation to wheels of different sizes &c.
Patent GB-757619-A (GB)
Title: Improvements in or relating to endless type conveyors
Inventor: ORWIN OLAF JOHN BARCLAY
IPC: B65G37/00
Filed: 1953-11-26
Abstract: 757,619. Endless belt sectional conveyers and driving gear therefor. FISHER & LUDLOW, Ltd. Nov. 26, 1954 [Nov. 26, 1953], No. 32813/53. Class 78 (1). A portable sectional conveyer is of the kind in which each section includes a separate endless belt, the belts being driven from a motor by means of a transmission system extending along one side of each frame and coupled together throughout the length of the conveyer. As shown, the frame sections 10 are coupled together by horizontal pivot-pins 35 engaging slotted holes in lugs projecting from adjacent sections whereby relative angular movement between the sections may occur in both vertical and horizontal planes. Each frame consists of tubular steel longitudinals 12 and transverse members 13 and is independently supported on pairs of legs 14 to which transverselyextending channels'15 are detachably secured for engaging the ground. The transmission consists of a shaft 26 on each section driving through worm gearing 25 a drum 19, adjustable for tensioning purposes, and being connected at each end through flexible couplings 29, 39 to the next adjacent section or to a motor 36 which includes bevel or worm gearing. The output shaft of the motor gearing may extend both sides of the motor for driving sections on both sides of the motor so that more than one motor may be used in the system. Provision is made for reversing the drive by removing the motor and associated gearing from the frame members 12 to which it is secured by one of two sets of brackets, inverting it, and mounting it by means of the other set of brackets.