baber/WOPTO huggingface dataset:
Patent GB-527092-A (GB)
Title: Improvements in hydraulic motors
IPC: F16D65/22
Filed: 1939-03-31
Abstract: 527,092. Fluid-pressure brakes. GENERAL MOTORS CORPORATION. March 31, 1939, No. 10094. Convention date, April 11, 1938. [Class 103 (i)] [Also in Group XXVI] A hydraulic motor comprises diaphragms 45 peripherally anchored to the cylinder and each engaging the rounded face of a piston 33 on one. side and the correspondingly rounder faces of an apertured retainer 47 on the other. When operating fluid is admitted between the retainers it passes through the apertures in the retainers and flexes the diaphragms away from the retainers and applies the brake shoes 13 by means of the pistons 33. When the liquid is released the diaphragms are forced back to the retainer and held to the container of the piston. The edges of the diaphragms are held between undercut surfaces 24, 25 on the two parts 21, 23 of the cylinder and the retainers when the two parts are screwed together. The pistons engage the shoes 13 by means of adjustment comprising screw-threaded stems 35 and nuts 43. In a modification the spaces of the pistons are concave and the retainers are held apart by a spring.
Patent GB-101287-A (GB)
Title: An Improved Oil Circulating System for Trunnions, Crank-shafts and similar Bearings.
Inventor: HOLTORP WILHELM
IPC: F16N7/36
Filed: 1916-07-18
Abstract: 101,287. Holtrop, W. Aug. 20, 1915, [Convention date]. Force-feed lubricating.-Oil is circulated through a crank-shaft, trunnion, or other bearing and returned to a reservoir by the rotation of the shaft. From a reservoir a, oil passes through pipes b, c and passages d, e in the direction in which the shaft is rotating, to a space f extending along one side of the bearing at a part where there is no pressure. The oil is carried round by the shaft to a similar space i on the opposite side, and is forced by a rotating shaft up a central Passage k and pipe l to the reservoir a. The edges of the recesses f, i are rounded off. A relief pipe p connects the recesses f, i to prevent excess of pressure due to obstruction.
Patent GB-1261209-A (GB)
Title: Improvements in ground engaging implement supports for attachment to tractors
IPC: E02F3/36
Filed: 1968-03-01
Abstract: 1,261,209. Tractor power lift mechanism. F. W. McCONNEL Ltd., H. W. NORTON and I. ROBERTSON. 28 Feb., 1969 [1 March, 1968], No. 10134/68. Heading A1P. A ground engaging implement support for attachment to tractor lift linkages comprises a support structure 10, on which the implement, e.g. a trencher, is mounted and which is pivotally attached to the upper, 13, and lower, 15, links of the tractor, and at least one hydraulic ram 33 which deforms a subsidiary linkage 22 in order to produce a downward load on the support structure. One of the subsidiary links 29 is unattached to but engagable with the lower link 15. Fluid is delivered to the ram via the control valve of the implement so that when the implement is operated the ram is energised, a manually actuated overide valve being provided so that fluid may be exhausted from the ram to prevent it operating. The ram may be replaced by a mechanical ratchet.
Patent GB-530105-A (GB)
Title: Improvements in and relating to electric valve circuits
IPC: B23K11/24
Filed: 1939-03-31
Abstract: 530,105. Supply systems for resistance welding &c. BRITISH THOMSON-HOUSTON CO., Ltd. (General Electric Co.). March 31, 1939, No. 10180. [A Specification was laid open to inspection under Sect. 91 of the Acts, Oct. 2, 1939.] [Class 38 (iv)] Apparatus for effecting periodic energization of a load such as a welding circuit 1 from an A.C. supply 2 through a pair of reversely connected valves 4, 5 of the immersion igniter type associated with a transformer 3 comprises a pair of valves 12 through which are supplied ignition impulses to the igniter electrodes of the valves 4, 5 under the control of a valve 25 which is in turn controlled by impulses derived from a circuit 74 comprising a condenser 75 arranged to be periodically discharged through a valve 76 in dependence upon the duration but independently of the magnitude of a control voltage applied to its grid. The apparatus also includes (1) a phase-shafting transformer 32 in the anode supply to the valve 25 whereby the amount of energy supplied to the load during the operative periods may be controlled, (2) a polarity selecting arrangement 33 whereby the load may be energized during half-cycles of the same or opposite polarity of the A.C. supply 2 as described in Specification 515,537, and (3) a lock-out circuit 91 which may be brought into operation at will to terminate energization of the load after a single period or after a predetermined number of periods. A three-position switch 123 associated with the control circuits enables the apparatus to be pre-set for (1) energization of the load for a single interval of time at each operation for spot welding, (2) energization of the load for a pre-determined number of final intervals at each operation for interrupted spot welding, and (3) energization of the load for an indefinite number of time intervals for seam welding, the lock-out circuit in this case being inoperative. Each energization may comprise a fraction of a halfcycle, a complete half-cycle or a definite number of complete or fractional half-cycles of current. Specifications 514,004 and 515,528 also are referred to.
Patent GB-788981-A (GB)
Title: Improvements in gauze covered drums
IPC: D21F1/60
Filed: 1956-04-04
Abstract: A drum for filtering or other purposes is formed by winding helically on to a former or strip or strips of wire gauze, edges of adjacent helical turns abutting one another.  Adjacent sides of the strip are secured together as by soldering if the gauze is of metal.  Two strips, side by side, may replace the single one, the end of one being offset from the other.  The ends of the strip or strips are cut off flush with the end of the drum and are secured to the former. The strip may be formed of lengths of gauze of equal width joined end to end.
Patent GB-178439-A (GB)
Title: Prepayment meters for gas, water, electricity and similar commodities
IPC: G07F15/04
Filed: 1922-04-11
Abstract: 178,439. Landis & Gyr Akt.-Ges. April 12, 1921, [Convention date]. Electricity, gas, and liquids, supplying by meter.-In a prepayment meter of the kind in which by actuating the coin mechanism, a spring controlling the switching on and off of the supply is put in tension, a tripping-mechanism for the spring is controlled by a spindle which is moved axially in proportion to the number of coins prepaid and is returned by the measuring element of the meter in order to permit the insertion of a large number of coins at once, thus avoiding a locking device for the prepaid coins. The invention is described in connection with an electricity meter. A switch arm 12 adapted to engage between fixed spring contacts 14 is carried by a rotating piece 9 which has a toothed segment 10, a stop 15, and a crank arm 16 on which a spring 17 acts. The segment 10 is rotated by a toothed wheel 3 on a spindle 2, which can be turned, after the insertion of a coin, until the crank 16 reaches its dead centre when the segment 10 disengages from the wheel 3 and the spring 17 rapidly rotates the disc 9 until the stops 15 comes against a flat 18 on a spindle 19, the circuit being then closed. The rotation of the spindle 2 through gears 3, 7, a flexible connection 8 and the counting train causes a spindle 21 having a threaded portion 23 to move axially through an adjustable nut 25 and come in front of a lug 20<1> on an arm 20 carried by the spindle 19, thus preventing the spindle 19 from being turned by the action of the disc 9 and the switch from being opened. The arm 20 is normally held by a weak spring 27 against a stop 28. The spindle 21 is returned by the measuring element of the meter until a flat 26 comes opposite the lug 20<1>, allowing the arm 20 to be moved. The shock of re-engagement of the segment 10 with the wheel 3 is reduced by a pin-and-slot connection 5, 4. Fig. 4, between the spindle 2 and wheel 3, the driving-end of the slot being held against the pin by a coiled spring 6.
Patent GB-779922-A (GB)
Title: Improvements in riveting machines
IPC: B21J15/30
Filed: 1955-04-12
Abstract: 779,922. Riveting. JACKSON, Ltd., A. N. and JACKSON, A. N. April 11, 1956 [April 12, 1955], No. 10386/55. Class 83 (4). A riveting machine comprises a head B formed with a bore to house a riveting ram b and carrying the toggle lever mechanism, the head being provided with a face b<SP>1</SP> parallel to the ram and positioned adjacent the bore, and a gap frame A, one arm of which is provided at its end with a face adapted to seat the face bl provided on the head and formed with a groove to house a tongue b<SP>2</SP> thereon. A cylinder C houses a piston for operating the toggle lever c. Studs b<SP>3</SP>, b<SP>4</SP> and b<SP>5</SP> hold the head to the frame the top studs b<SP>3</SP> taking any live-load shocks due to the action of the pneumatic or hydraulic cylinder and the bottom four studs counteracting the bending moment at the joint. The shear stress at the joints is taken by the tongue and groove connection. Portable machines are suspended at their centre of gravity by rods a3.
Patent GB-887518-A (GB)
Title: Improvements relating to transistor electric pulse lengthening circuits
Inventor: BARROW CHRISTOPHER WILFRED MER
IPC: H03K5/04
Filed: 1958-04-01
Abstract: 887,518. Transistor pulse lengthening circuits. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. March 24, 1959 [April 1, 1958], No. 10460/58. Class 40(6). In a pulse lengthening circuit the input pulse is applied through a one way device to the base of a transistor to cause hole storage to maintain collector-emitter current flow after the termination of the pulse, producing an output pulse that is terminated by a cut-off pulse applied to the base. In Fig. 1 a 0.2 microsecond pulse applied to terminals it causes transistor T1 and so transistor T2 to conduct. At the end of the pulse, transistor T1 ceases to conduct and diode rf6 becomes non-conducting so that the base of transistor T2 is effectively open circuited. Hole storage maintains current flow in the collector-emitter path of transistor T2 until it is terminated after 0.8 microseconds by a positive pulse applied through rectifier rf5 to the base. In the normal non-conducting condition of the circuit, rectifiers rf3 and rf4 clamp the emitter potentials to earth and rectifiers rf1 and rf2 ensure that points j1 and j2 are slightly positive with respect to the corresponding emitter electrodes.
Patent GB-1012599-A (GB)
Title: Regasifying liquified natural gas by fractionating gaseous mixtures
Inventor: TUTTON RALPH CHARLES
IPC: F17C9/04
Filed: 1964-03-12
Abstract: <PICT:1012599/C4-C5/1> In the separation of C1-C4 hydrocarbon mixtures by fractional condensation and distillation, liquefied natural gas (LNG), is used as refrigerant for condensation thereby vaporizing the LNG for pipeline distribution and as direct reflux.  A C1-C4 mixture, e.g. obtained from cracking a naphtha, ethane or propane, is obtained as overhead from fractionator 2 and the C4 members condensed in heat exchanger 3 with LNG from line 1.  The gases are compressed and cooled then partially condensed in heat exchangers 8 and 9 with respectively LNG and overhead from fractionator 10.  The partially condensed gases are demethanized in column 10 fed with LNG as direct reflux and the bottoms separated in column 12 into C2 overhead and C3 bottoms and the C2 further separated into ethylene and ethane in column 17, LNG being used to condense overheads.  Gas is recovered in line 23.
Patent GB-251619-A (GB)
Title: An improved wrought iron hub for radiator elements
IPC: F28D1/053
Filed: 1926-04-21
Abstract: 251,619. Mannesmannrohren-Werke. April 30, 1925, [Convention date]. Radiators.-Radiator tubes a are connected by wrought iron hubs b, each of which consists of two similar halves s which are welded or soldered together at c. The lialves are. pressed out of the solid material in a heated d condition, thickened parts f for the usual nipple threads, unions c, and stepped guiding-rims for the tube a being produced at the same time. The tubes a are then pushed on to these guiding rims and are welded or soldered at d to said unions c. The lower hub is so shaped that the upper edge of the lower welded seam is at its lowest point tangential to the bore of the hub at the bottom of the latter, so that water of condensation can flow away through the aperture f.
Patent GB-264703-A (GB)
Title: Improvements in devices for setting submarine mines at different predetermined depths
IPC: F42B22/18
Filed: 1926-04-21
Abstract: 264,703. Aktiebolaget Bubum. March 11, 1926, [Convention date]. Mines, marine. - A depth-setting apparatus for submarine mines consists of a depth-plate 12 closing a pressure chamber 10 and having a counter spring 15; and means are provided for varying the area bounded by the seat of the depthplate. Small variations in the depth of setting may be made by varying the pressure of the spring by means of an abutment 16 and handwheel 17, but larger variations are made by adjusting the cross section of the column of water acting on the seat of the depth-plate. The depth-plate 12 has a stem 18 guided in the cover 19 of a casing 13 and is engaged by a pivoted lever 21 which depresses a spring-controlled plunger 23. The plunger 23 when uninfluenced by the arm 21 serves to operate mechanism to anchor the mine. The depth-plate 12 is held on to its seat by a bolt 24, which is withdrawn automatically after the mine has sunk to a level where the pressure is greater than that provided by the spring 15. The chamber 10 may be provided with two seats 25, 25<1>, either of which may be fitted with a depth-plate 12 according to the depth of setting of the mine, as in Fig. 1, or the depth-plate 12 may be provided with two seats 27, 27<1>, as in Fig. 3, for either of which a pressure chamber 10 may be fitted. Alternatively, the pressure chamber opening may have outwardly divergent walls and depth-plates of different diameters may be used, or several openings of different sizes may be formed in the pressure chamber and each may have a depthplate, but only that plate required to produce the desired pressure is operable. In a further modification, the opening to the chamber 10 may be adjustable by means of adjustable plates. The spring 15 may be in tension and mounted outside the chamber 10.
Patent GB-1525291-A (GB)
Title: Apparatus for determining the thickness moisture content or composition of a film or coating
IPC: G01B11/06
Filed: 1976-06-11
Abstract: 1525291 Photo-electric measuring apparatus INFRARED ENG Ltd 11 June 1976 [13 March 1975] 10601/75 Heading G1A In apparatus for measuring a reflection, scattering or transmission characteristic of a sample, in order to define a single effective waveband of variable peak wavelength and/or bandwidth, first and second filters provide beams having overlapping spectral bandwidth characteristics and the effects of the sample on these beams is detected to develop respective signals which are weighted in differing degrees and then combined. Thus with two filters having different peak wavelengths, differing weightings can alter the effective peak wavelength of the combination; two filters of the same peak wavelength and different bandwidths can be used to provide an effective waveband of variable bandwidth. In the particular embodiment, Fig. 1, two pairs of filters are used to define measurement (strongly absorbed by sample) and reference (weakly absorbed) wavelength bands. Light from the filters is sequentially detected and resulting signals demodulated under the control of synchronizing transducer T, to produce signals which are fed to respective adjustable resistors V.R. 1  - VR 4  the weighted signals being combined in pairs and amplified at A 1 , A 2  to provide the measurement and reference signals, the ratio of which is taken and indicated.
Patent GB-559060-A (GB)
Title: Improvements relating to the construction of girders, beams and stanchions and portable structures made therefrom
IPC: E04C3/08
Filed: 1942-07-30
Abstract: 559,060. Structural unit for hangars, sheds and the like. REDPATH, BROWN & CO., Ltd., and CRAWFORD, W. July 30, 1942, No. 10646. [Classes 20 (i) and 20 (ii)] A prefabricated structural unit for use in the construction of hangars, storage sheds and the like is of external pentagonal form and comprises two parallel members 17, 18 joined together at one end by a straight end member 19 and at the other end by a pair of convergent end members 20, 21 forming a re-entrant angle. The member 21 may be continued down to the lower member and the elements forming the unit may be joined together by rivets or bolts and gusset plates. For larger units extra cross and diagonal elements 23, 24, 25 may be incorporated between the parallel members and for inclined stanchions and roof members, the end member 19 may be disposed other than perpendicular to the parallel members. The elements are of channel section of such sizes that the ends of the cross and diagonal elements fit between the flanges of the parallel elements with distance pieces 36 on the bolts where required. For joining inclined roof members to inclined stanchions a pentagonal member as shown in Fig. 5 is used, the elements 40 and 39 being connected to the stanchion and roof member respectively. The spaced framework members for the hut are joined together by purlins 45 of section metal or purlin constructed from suitable pentagonal units as previously described.
Patent GB-253304-A (GB)
Title: A pressure equalising valve for locomotives and the like
IPC: F01B25/00
Filed: 1925-04-24
Abstract: 253,304. M³ller, F. April 24, 1925. Cylinder ends, putting into communication. - Comprises an arrangement of pressure equalizing valves for connecting together the ends of locomotive cylinders when running under no-load conditions, characterized in that the valves, each of which comprises a body or seat part e and a counter-piston f, are arranged with the counterpistons situated between the seat parts e, the counter-pistons being subjected on one side h' to air pressure or the atmosphere through a port k', and on the other side to the fluctuating pressures which occur during no-load running. The valve chambers are connected together by a conduit c and each is in communication with a cylinder end through a passage b. The interior space h of each valve is connected through a pipe d with the slide-valve chest or the steam-supply pipe. The valves may be opened positively, when it is desired to keep the cylinder ends in communication, by admitting pressure air through the ports k<1> to act on the counter-pistons.
Patent GB-219102-A (GB)
Title: Improvements in driving mechanism for camshafts of internal combustion engines
IPC: F01L1/047
Filed: 1923-04-21
Abstract: 219,102. Craig, A. April 21, 1923. Crank linkages. - Subsidiary shafts, such as cam shafts, are driven by connecting-rods which are bent out of the line of thrust joining the centres of the cranks or eccentrics, so as to provide resilience to allow for heat expansion. Fig. 1 shows cam shafts A, B with a Y-shaped connecting-rod C arranged between cranks A<2>, B<2> on the cam shafts and an eccentric E<3> on the halftime shaft E. Instead of being Y-shaped, the connecting-link may be of hexagonal form as shown in Fig. 3, or of triangular form with bowed or sinuous sides, or of circular or other form providing sufficient elasticity. A joint, such as C<2>, may be provided in one arm of the link C to allow removal of the cylinder head. Additional drives may be obtained by means of other cranks attached to the link C or to additional arms thereon.
Patent GB-638707-A (GB)
Title: Improvements in ploughs
IPC: A01B3/18
Filed: 1947-04-23
Abstract: 638,707. Agricultural implements. BONNEL, H. A. April 23, 1947, No. 10912. Convention date, May 14, 1945. [Class 6 (i)] The shares of a reversible plough are turned by means of a lever 6 mounted on a frame 4 carrying the plough shares 5, 5a. A lock 7 operated by a handle 12 engages in notches in a segment 10 to lock the frame in its various positions. The notches may be formed in plates adjustably attached to the quadrant 10 to alter the working position of the tools.
Patent GB-1374147-A (GB)
Title: Method of manufacturing rod wire or tube shaped products of compound material by means of hydrostatic extrusion
IPC: B21C23/24
Filed: 1972-03-09
Abstract: 1374147 Extruding, ALLAMANNA SVENSKA ELEETRISKA AB 9 March 1972 [10 March 1971] 10986/72 Heading B3P A compound rod, wire or tube is made by hydrostatically extruding a compound billet whose rear end is liquid-tight and which is composed of aluminium or aluminium alloy with aluminium alloy or of aluminium or aluminium alloy with copper or copper alloy with an oxide layer on at least one of the confronting surfaces, the extrusion ratio being greater than 20 : 1 to ensure break up of the oxide layer the breaking exposes clean aluminium and/or copper to enable good bending. The extrusion ratio may be as high as 150 : 1. The surfaces of the billet components are degreased with trichloroethylene or alcohol before assembly. If the oxide layer is thick it may be wire blushed.
Patent GB-1468491-A (GB)
Title: Production of -hydroxymethyl-alkyl cycloalkyl and aralkyl phosphines
IPC: C07F9/50
Filed: 1975-03-17
Abstract: 1468491 Preparation of hydroxymethyl phosphines HOECHST AG 17 March 1975 [22 March 1974] 11012/75 Heading C2P Phosphines of Formula I where n is 1 or 2 and each R is optionally substituted alkyl, cycloalkyl or aralkyl having up to 18 carbon atoms, are prepared by reacting a corresponding phosphine R n P(H) 3-n  with formaldehyde, paraformaldehyde or trioxane at atmospheric pressure at less than 40‹ C. in the presence of an inert, polar, organic solvent, and separating the solvent from the reaction product. Suitable solvents are alcohols, glycols, ethers, alkylated formamides, aliphatic and aromatic nitriles, halogenated aliphatic and aromatic hydrocarbons, cyclic and linear sulphones, carboxylic anhydrides and esters and N- alkylated carboxylic acid amides. A catalyst which is a salt or complex of a group II or VIII metal or a phosphate, phosphite, hypophosphite or phosphonium compound may also be used. The reaction is preferably carried out in a protective gas atmosphere. The process may be carried out continuously in a reactor divided into two portions by a partition permeable to liquid, the starting materials being placed in one part of the reactor in suspension and the product solution being withdrawn from the other part of the reactor.
Patent GB-178852-A (GB)
Title: Improvements in or relating to devices for bringing liquids and gases into contact
IPC: B01F3/04
Filed: 1922-04-20
Abstract: 178,852. Soc. L'Air Liquide, Soc. Anon. pour l'Etude et l'Exploitation des ProcÚdÚs G. Claude. April 21, 1921, [Convention date]. Liquids, treating with gases.-A bubbling hood for a rectifying &c. column comprises a plate A having capped chimneys B for the passage of gases and one or more orifices D in the plate through which liquid descends to the next lower plate, the crosssection of the orifices being of such small dimensions that the liquid filling them adheres continually to their edges by capillarity. Delivery of liquid through the orifices and the height of liquid on the plates vary according to the supply of ascending gas. A circular guide-wall may surround the cap C, and in a further modification the quantity of liquid required on a plate may be reduced by the formation of funnels G terminated at their lower ends by the orifices, the minimum height of the funnels being the distance k between the solid edge of the caps and the bottom A of the plate.