baber/WOPTO huggingface dataset:
Patent GB-1207000-A (GB)
Title: Improvements relating to photographic apparatus
IPC: G03B17/52
Filed: 1968-07-25
Abstract: 1,207,000. Photographic apparatus. INTERNATIONAL POLAROID CORP. July 25, 1968 [July 25, 1967], No.35634/68. Heading G2A. Photographic apparatus for distributing a liquid as a layer between two layers of sheet material 20, e. g. an exposed negative photo-sensitive film sheet and a superposed positive receiving film sheet having a pod of processing liquid disposed therebetween, comprises a pair of rigid, non-rolling members 14, 15 and a pair of elongated cantilever spring members 10, 11 fastened to at least one of the rigid members and stressed to exert a predetermined initial force on the members tending to close a narrow, pressuregenerating gap formed between the rigid members through which the layers of sheet material are moveable. At least one of the members has a surface 16 converging angulary towards the gap to define a throat to guide the sheet material towards the gap, the member exhibiting at the narrowest portion of the gap 17 a sharply reduced radius of curvature. As shown, each spring element is bent double to define a pair of resiliently connected cantilever arms and two indentical rigid elements are welded to the ends of the arms. A pair of shoulders (34), (35) Fig. 3 (not shown) may be provided on one element of prevent the gap from being completely closed. In an alternative embodiment, one of the elements is repalced by an anvil (45) Figs. 4 and 5 (not shown) having a surface (46) forming a rigid substantially straight portion and the other element is in the form of a spreader element (52) integral with the two pairs of resiliently connected cantilever arms (49), (50), the spreader element being in juxtaposed relationship with the anoil surface to form a narrow, pressure generating gap. In a modification, Figs. 6 and 7 (not shown), the two pairs of resiliently connected cantilever arms are each replaced by single cantilever arms (59), (60) connected by an integral portion (58) forming one rigid member, the ends of the arms being clamped at (62), (62), (64), (65) to a plate member (55), the flat surface (56) of which forms the other element.
Patent GB-742014-A (GB)
Title: Methods of manufacturing fibre-reinforced elements of gypsum, cement and the like binders
Inventor: LAUTERBORN CARL
IPC: E04C5/07
Filed: 1953-12-22
Abstract: 742,014. Moulding building elements: glass and cement compositions. GLASWATTE GES. Dec. 22, 1953, No. 35640/53. Classes 70 and 87 (2). Structural elements of gypsum, or cement binders reinforced by webs of loosely intermatted glass or other mineral fibres are obtained by soaking the web with an aqueous suspension of the binder, the amount of water of which exceeds that normally used for preparing a pasty binder mass so as to give the suspension such a fluidity that each fibre is coated with suspension, and after soaking, pressing so that the filtering capacity of the web is increased so that in the final stage of the pressing all binder particles are retained by the web and only pure water is still squeezed out. The webs are preferably made from long fibred webs but short-fibred webs may be used if one or both surfaces are covered with a layer of long fibres. The fibrous web may be passed in the form of a continuous band 7 through a bath of binder suspension and then passed to a transportable platform 11 of a screw type press having a frame 18 and a stamp or slide 19 and a hand wheel 20. Press boards 12 are placed on the soaked webs and the whole pile squeezed in the press. In modifications (not shown) the treated webs are squeezed between endless belts or on corrugations.
Patent GB-913041-A (GB)
Title: Process for the preparation of monocarboxylic acids
IPC: C07C51/10
Filed: 1961-10-03
Abstract: Monocarboxylic acids are produced by reacting a saturated hydrocarbon, or a mixture of saturated hydrocarbons, with carbon monoxide and water in the presence of one or more hydrogen acceptors and an acid catalyst consisting of a liquid complex mixture of phosphoric acid, boron trifluoride and water.  The reaction temperature may be between 15 and 100 DEG C. and the pressure of carbon monoxide less than 50 atmospheres gauge.  The molar ratio of phosphoric acid and boron trifluoride may be between 1 : 1.7 and 1 : 1.0 and the ratio of phosphoric acid to water between 1 : 1.5 and 1 : 0.5.  The saturated hydrocarbon preferably contains a tertiary carbon atom.  The hydrogen acceptor, which is an olefin or compound which forms a carbonium ion under the conditions of the process, and preferably with fewer carbon atoms than the saturated hydrocarbon may be a carbene, e.g. propene, butene, isopentene, or isobutene, an alcohol, e.g. isopropyl alcohol, isoamyl alcohol, tertiary butyl alcohol, a halide, e.g. isopropyl chloride, tertiary amyl chloride, tertiary butyl chloride, or the corresponding fluorides, an acid, e.g. isobutyric acid or pivalic acid.  The molar ratio of saturated hydrocarbon to hydrogen acceptor may be greater than 1 : 1.  The process may be carried out batchwise with the hydrogen acceptor added gradually to the mixture.  It may be performed in one or several reaction spaces connected in series, into which the reactants are continuously added.  The liquid reaction mixture is kept homogeneous by stirring, the composition kept constant and the mixture is continuously withdrawn from the reaction spaces. Alternatively the reaction may be carried out in a tubular reactor, the hydrogen acceptor being added at various spots along the tube.  Specification 798,065, German Specification 512,718, and U.S.A.  Specification 2,864,858 and 2,874,186 are referred to.
Patent GB-757972-A (GB)
Title: Improvements in casings for gas meters or other throughflow appliances
Inventor: LUKE WERNER
IPC: G01F3/22
Filed: 1954-12-09
Abstract: 757,972. Gas meters. KROMSCHRODER AKT.-GES., G. Dec. 9, 1954, No. 35669/54. Class 54. A gas meter has a two-part casing 1, 2 and a common connector socket 4, 5 for the inlet and outlet arranged in the middle of the upper surface of the casing which is divided in a vertical or diagonal plane so that one part includes the socket 4, 5 while the other includes the greater part of the bottom surface of the casing. As shown, the casing is divided vertically and the part 1 has a tongue-shaped extension 3 to carry the socket 4, 5 and to lie beneath a corresponding recess 6 in the part 2. The meter mechanism 8 has a socket 7 for insertion into the socket 4. The inlet and outlet conduits may be arranged side by side instead of coaxially. Specification 755,462 is referred to.
Patent GB-435528-A (GB)
Title: Improvements in signal receiving arrangements
IPC: H04B3/10
Filed: 1933-12-19
Abstract: 435,528. Valve circuits for wireless reception. TELEFONAKTIEBOLAGET, L. M. ERICSSON, 33, Kungsgatan, Stockholm. Dec. 19, 1933, No. 35769. Void [Abridged as open to inspection under Sect. 91 of the Acts, June 25, 1934]. [Class 40 (v)] The gain of a carrier frequency amplifier is controlled by the amplitude of a harmonic of the carrier. In one embodiment the second harmonic is selected from a common anode coil P of a push-pull amplifier A2, A<1>2 by a band pass filter P, S, C, rectified at G and applied to vary the grid bias of a preceding amplifier A1. In a modification, a detector stage comprises two valves with push-pull connected grids and parallel anodes, the harmonic being selected from the anode circuit. Harmonics other than the second may be used and the gain control may be applied to stages preceding and following that from which the harmonic is derived.
Patent GB-1335096-A (GB)
Title: Transition couplings for rail vehicles
IPC: B61G5/04
Filed: 1971-07-29
Abstract: 1335096 Transition couplings for rail vehicles GERMANY MINISTRY OF TRANSPORT 29 July 1971 35804/71 Addition to 1225834 Heading B7T The transition coupling of the Specification 1,225,834 is modified by providing a recess at the upper end of the lower slot 14 into which the roller 20 moves when the shackle moves from position V to position VI.
Patent GB-1113041-A (GB)
Title: Corrosion-resistant battery separator
IPC: H01M2/16
Filed: 1965-08-20
Abstract: A battery separator comprises a porous sheet of bleached sulphite western hemlock pulp which has an alpha-cellulose content of about 88%.  Such pulp is said to have a resistance to corrosion hitherto found only in pulp of higher alpha-cellulose content. The pulp may be impregnated with a phenol-formaldehyde resin by adding the resin to the pulp before it is formed into a sheet, or to the sheet after it has been formed and before or after it is dried.  The separator may be formed with ribs, or ribs may be attached to it.  In an Example, a urea-formaldehyde resin is also added to the pulp for wet strength. The specification also describes for purposes of comparison battery separators made from the following pulps (alpha-cellulose content in brackets): Western Red Cedar sulphate (88.5%), Norway Spruce sulphite (87.5%), Scotch Pine sulphate (89.5%), Southern Pine sulphate (88.7%), Black Spruce sulphite (88.5%), Jack Pine sulphite (88.5%), Balsam sulphite (88.5%) and Western Hemlock sulphite (81.5%).
Patent GB-858490-A (GB)
Title: Governor for a fuel injection engine
IPC: F02D1/00
Filed: 1959-10-23
Abstract: 858,490. Centrifugal governors. SCHAFER, G., and SCHAFER, O., [trading as KUGELFISCHER G. SCHAFER & CO.]. Oct. 23, 1959 [Oct. 23, 1958No. 35926/59. Class 57. A governor device for controlling the quantity of fuel fed by a pump to a fuel-injection engine comprises main and secondary centrifugal governors and an intermediate member 11 movable by the governors in two directions at right-angles and having a cam surface 20 engaged by a follower 12 and shaped so as to match the output characteristics of the pump with the fuel requirements of the engine at varying speeds, the motion produced in the follower by the impulse of the main governor being modulated by the impeller of the secondary governor. The main governor comprises two weights 1, 2 secured to cranks 7, 8, 9, 10 which are pivotally mounted on a hub 4 carried by the drive-shaft 3 of the fuel pump. The free ends of the cranks are pivoted on the intermediate member 11 which slidably passes through a slot formed in the hub 4 and is provided on one end with a fly-weight 16 acting against a spring 18 and constituting the secondary governor. The cam surface 20 co-operates with a ridge 21 formed in the follower 12 which, through a lever-and-rod arrangement 13, 14, acts, against the action of a spring 22, upon a rod 15 coupled to the fuel valve. In operation, the weights 1, 2 move outwardly, thereby moving the follower 12 until at a predetermined speed the centrifugal effect of the weight 16 causes the intermediate member to move and through the cam surface 20, increase the movement of the follower.
Patent GB-301919-A (GB)
Title: Improvements in means for stopping the flow of glass through the outlet from a melting tank
IPC: C03B5/26
Filed: 1928-12-06
Abstract: 301,919. Soc. Anon. des Manufactures des Glaces et Produits Chimiques de St.-Gobain, Chauny, et Cirey. Dec. 8, 1927, [Convention date]. Discharging.-A device for stopping a stream of molten glass from flowing through an outlet in a tank furnace or forehearth comprises a stopper which rests on the lower lip of the outlet and is supported in an inclined position, so that flames and hot gases can pass through the outlet over the surface of the glass. By this means the stopper and the neighbouring parts are kept sufficiently hot to enable the stopper to be removed easily when the flow is to be started again. Fig. 1 shows a tank F having an outlet 0 through which glass flows to be formed into a continuous sheet. The lower lip of the outlet extends outwards from the tank front, and the area of the outlet can be varied by means of a movable upper lip k which can be raised, as shown, when the flow of glass is stopped. The stopper consists of a block a of refractory material set in a metal frame b to which one or two rods c are attached. The stopper, when in use, rests in an inclined position on the lower lip as shown, the inclination being regulated by an adjustable support e for the rods. By making the block a of suitable shape, it may be made to serve as the upper lip of the outlet, as shown in Fig. 4. When the tank is provided with a forehearth s for a feeder, as shown in Fig. 7, or with an extended spout for a tube-drawing machine, the stopper a is inserted through an opening r in the roof of the forehearth or spout which is covered when the feeder is in use.
Patent GB-498275-A (GB)
Title: Improvements in lathes or like machine tools for forming articles from bar stock
IPC: B23B7/02
Filed: 1937-12-30
Abstract: 498,275. Lathes. WORRELL, G. C. Dec. 30, 1937, No. 36163. Convention date, Jan. 12. [Class 83 (iii)] An automatic lathe &c. comprises a support, two oppositely disposed swingable tool carriers, a third reciprocable tool carrier, a common cam member for operating the tool carriers and actuating members between said tool carriers and the cam member which are adjustable in the support to vary the extent of the movements of the tool carriers. The machine comprises a work spindle 40 through which bar stock is fed by a reciprocating-gripper device of ordinary construction operated from an overhead camshaft 32 which is driven by gearing from the work spindle. The camshaft is supported in bearings carried by brackets 8, 10, 12, 14 and also supports a pair of swing- able tool carriers 114, 116 which operate on opposite sides of the work and may be provided with forming and cutting-off tools for making nut blanks. The tools are positioned intermediate the ends of the carriers and the lower ends of the latter are adjustably connected to the forked ends 146, Fig. 7, of actuating members 142, the rectangular ends of which are adapted to fit between ledges in the machine frame and the pivot points 138 of which may be varied to vary the effective throw of the cams 108, 112 on the cam drum carried by the overhead camshaft. A reciprocating tool carrier 204 is arranged horizontally, Fig. 3, and may carry a drill D for operating on the stock B. The tool carrier has a vertically arranged actuator 212 with an adjustable pivot 216.
Patent GB-508654-A (GB)
Title: Improved device for converting direct voltage into alternating voltage
IPC: H02M7/51
Filed: 1938-12-12
Abstract: 508,654. Converting. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOBILAMPENFABRIEKEN. Dec. 12, 1938, No. 36206. Convention date, Dec. 14, 1937. [Class 38 (ii)] An arrangement for converting high tension D.C. into low voltage A.C. comprises a number of grid-controlled discharge devices L1 ..... L5 connected in series, a condenser C1 ... C4 connected across every two successive discharge devices, the load circuit R being connected in series with a condenser C5 across the last discharge device. The odd- and even-numbered discharge devices are rendered conductive alternately by grid potentials which may be derived from the D.C. supply terminals through condensers. The discharge devices may be high vacuum valves or gas- or vapour-filled valves with grids capable of suppressing the discharge. The D.C. connections may be as indicated in full lines, or alternatively as indicated in broken lines in which case an additional discharge device L2 is included in the negative lead. Where the discharge device L2 is provided, the condenser C1 may be omitted.
Patent GB-738729-A (GB)
Title: Electrical pressure cell transducer
IPC: G01L9/00
Filed: 1953-12-31
Abstract: 738,729. Electric pressure gauges. WING FOOT CORPORATION. Dec. 31, 1953 [July 2, 1953], No. 36324/53. Class 40 (1). A transducer for measuring the pressure of a fluid comprises a pressure-sensitive tube supplied with resistance strain gauges for measuring compression and tension in the tube. As shown (Fig. 1) a pressure-sensitive tube 2 is connected by couplings 3 in a fluid flow conduit, with the ends of the tube exposed to the fluid pressure. Attached to the surface of the tube 2 are two axially-directed compression strain gauges 5, 6 and two circumferentially-directed tensional strain gauges 7, 8, the gauges of one pair being at 90 degrees to the other. A housing 9 provides a safety enclosure round the pressure-sensitive tube 2. The resistance strain gauges 5-8 are interconnected in bridge form, whereby errors due to temperature variation are obviated, and connected to a four-pin socket 14 for external connection to a measuring circuit.
Patent GB-1471159-A (GB)
Title: Air valves for compressed air systems
IPC: F16K47/02
Filed: 1974-08-20
Abstract: 1471159 Silencing flow from valves ROBERT BOSCH GmbH 20 Aug 1974 [21 Aug 1973] 36509/74 Heading F1B [Also in Division F2] An air valve, e.g. a pressure regulating valve for air brake systems of a motor vehicle, comprises a silencer 14, Fig. 1, in the form of a cup-shaped filter in an exhaust passage 8 of the valve housing. Pressure air is supplied from a compressor 22 through the regulator to a reservoir 7. Surplus pressure air is exhausted through a spring-loaded valve 9, the filter-silencer 14 and a flexible pipe 23 to atmosphere. The cup-shaped silencer 14 is of sheet metal and comprises perforations in its cylindrical wall and larger perforations in its base. Moreover, it is provided with a safety flap (21), Fig. 2 (not shown), which opens to provide a flowpath if the silencer becomes blocked. The silencer can be removed after removal of a spring-ring 15. An alternative filter silencer, Fig. 3 (not shown), has the perforated portion of the cylindrical wall replaced by a steel wire gauze section soldered between the base and the flap (21).
Patent GB-858895-A (GB)
Title: Indicia bearing electroluminescent panel and method of manufacture
IPC: H05B33/28
Filed: 1959-10-28
Abstract: 858,895. Electroluminescent signs. MILLER, J. D. Oct. 28, 1959 [Jan. 5, 1959],No.36541/59. Class 39(1). The indicia on an electroluminescent display panel comprising a metal, e.g. steel base 1, Fig. 1, an insulating layer 2, a phosphor layer 3, a transparent conducting layer 4 and a transparent insulating layer 5, are formed by removing at least the transparent layers 4 and 5 leaving indicia areas 6 which are preferably filled with conducting paint 7 to connect the severed portions of layer 4 and an insulating filler 8. In another embodiment, Fig. 4, areas 9 are formed by removing layers 3, 4 and 5 leaving luminescent indicia 10. In another construction, layers 2, 3, 4 and 5 are removed in the non-luminescent non-indicia areas and a further insulating layer is applied to the uncovered metal base having a meniscus to protect the upstanding edges of the indicia areas. Alternatively sufficient portions of the layer 2 may be left adjacent the indicia areas to prevent arcing between the metal base 1 and the conducting layer 4.
Patent GB-811943-A (GB)
Title: Pulse signal translating apparatus
IPC: H03K5/05
Filed: 1955-12-21
Abstract: 811,943. Pulse delaying circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 21, 1955 [Dec. 31, 1954], No. 36611/55. Class 40 (6). In a pulse train delay circuit the input pulse train and a train of clock pulses are applied to a capacitor, the voltage of one plate of which changes from a first to a second value during the clock pulse period following an input pulse and from the second to a third value in the same period following the absence of an input pulse. An output pulse being produced if the voltage has moved from the second towards the third value immediately preceding a clock pulse. Fig. 1 shows a circuit for producing the delayed complement of a train of binary coded pulses applied to its input. The clock or sync. pulses are applied from a source 15 and a source of negative-going input pulses via diode 12 to a capacitor 10 which is connected by a resistor 11 to a D.C. source which has a value dependent upon the clock pulse frequency. The input pulse level is normally + 30 volts and, as shown in Fig. 2, A, the voltage at point A rises to this level so that capacitor 10 charges through resistor 11. Diode 13 conducts and, as shown at Fig. 2, B, the voltage at point B similarly rises to this level, the voltage at point C is prevented from rising by the diode action of the positive grid of the conducting tube 19. If necessary the voltage at point C may be clamped by a catcher diode having its cathode connected to C and its anode to - 15 volts D.C. Tube 24 is normally cut off and the first negative-going sync. pulse reduces the voltage at points A and B from + 30 to 0 volts. Tube 19 is thus cut-off and point D rises, causing tube 24 to conduct and the output voltage to drop. After a delay of about 1 microsecond point C rises until tube 19 conducts and the negative-going pulse cuts-off tube 24 which causes the output voltage to rise, this gives a negative pulse at the output representing a binary 1 as a result of the binary 0 input occurring. Just after the first sync. pulse a binary 1 input is applied the voltage of point A falls to - 30 volts but diode 30 isolates point B; at the end of the input pulse the input rises to + 30 volts and point A rises as current flows through resistor 11. The time constant is such that the voltage rises to 0 volts just before the second sync. pulse, no output pulse results from the second sync. pulse since the voltage at point B has not changed, thus a binary 0 output is produced. Since the input is a binary 0 during the second sync. pulse A rises to + 30 volts and the third sync. pulse produces a negative pulse, i.e. a binary 1, this action continues so that a complement binary output is produced, tubes 19, 24 serve only to amplify the voltage at point C. The circuit may be modified to accept a train of positive input pulses. Specification 756,285 is referred to.
Patent GB-793580-A (GB)
Title: Improvements in or relating to the preservation of food products
Inventor: KELLIE ROBERT WALLACE
IPC: A23L3/04
Filed: 1955-12-21
Abstract: 793,580. Stoppering in vacuo. KELLIE & SON, Ltd., R. Dec. 21, 1956 [Dec. 21, 1955], No. 36690/55. Class 125(2). In applying lids to hot jars by cooling the jar to form a partial vacuum therein, the cooling is effected first by an air blast and then by water sprays. As shown, jars with lids thereon are carried by a conveyer 2 from. left to right through a tunnel and are subjected in sequence to steam supplied from nozzles 4, to an air blast impinging on the lids and supplied from nozzles 8 and then to three water cooling sections 9, 11, 13 having top and bottom sprays 10, 12, 14. A final air nozzle 21 removes adherent water. The spent cooling water from sections 11, 13 is supplied by pumps respectively to the sprays of sections 9, 11.
Patent GB-445440-A (GB)
Title: Improvements in or relating to cages or pens for poultry and other birds or animals
IPC: A01K31/17
Filed: 1934-11-22
Abstract: 445,440. Feeding and drinking appliances for animals. FOLL, E. H., Bergen Way, Wavendon, Bletchley, Bucking- hamshire. Nov. 22, 1934, No. 36841. Divided application. [Class 5 (ii)] The separate cages or compartments a of a group or battery are provided with food and drink receptacles so positioned as to serve a number of cages, those e for food being on opposite sides of the cages from those f for drink, and both being mounted to one or other side or to front or back for accessibility from a single side. In the case of a battery, the food receptacles e serve on one side of cages of the section and on the other side cages of an adjacent section, the drink troughs f serving the cages of a group. Specification 445,449 is referred to.