baber/WOPTO huggingface dataset:
Patent GB-347403-A (GB)
Title: Device for lowering a life-boat
IPC: B63B23/04
Filed: 1930-03-11
Abstract: 347,403. Boat-lowering gear. SCHAT, A. P., 66, Hendrik de Keijserstraat, Utrecht, Holland. March 11, 1930, No. 7934. [Class 115.] In order to enable the man controlling the falls to follow the boat with the eye during lowering operations, the hauling part of the fall 5 is led from the upper block 6 and parallel with the length of the luff - ing davit 7 over a guide roller 17 mounted in the axis of rotation of the davit arm to a winding drum mounted vertically below the davit frame. The bollard 18 employed during lowering operations ie carried by the davit arm above the guide roller.
Patent GB-842087-A (GB)
Title: Improvements relating to electrical impedance networks
Inventor: ALLEN PETER HENRY GAY
IPC: H03H7/06
Filed: 1956-03-14
Abstract: 842,087. Impedance networks. BRITISH. THOMSON-HOUSTON CO. Ltd. Feb. 21, 1957 [March 14, 1956], No. 7991/56. Class 40(8). [Also in Group XXXVI]  A circuit for producing a current output which is constant and independent of the load comprises a first reactance and a resistance R connected in series across an A.C. source V1 together with a positive reactance and a negative reactance connected in series across the resistance, the current output i2 being derived across one of the latter reactances, the numerical values of all the reactances being equal at the source frequency and the sign of the reactance across which the output is derived being the same as that of the first reactance. It can be shown that if the input voltage V1 is much larger than the output voltage V2, i2 depends entirely on V1, R and the fixed value of the reactances. If the resistance R is made variable the output current will vary linearly with its setting.
Patent GB-576047-A (GB)
Title: Improvements in devices for administering inhalants or other volatile substances
IPC: B67B7/92
Filed: 1944-04-28
Abstract: An inhalation device comprises a frangible container holding an inhalant and enclosed within a composite cartridge.  The cartridge consists of an inner casing formed by a spirally wound strip of blotting paper, or other absorbent sheet material and an outer casing of a spirally wound strip of stouter water repellent paper, which is so wound that the small helical gap between its adjacent edges is not coincident with the helical joint of the inner strip.  Both layers are secured together with a neutral vegetable adhesive, e.g., starch glue.  The inner casing may contain an indicator, e.g., manganese sulphate, phenol phthalein or litmus. The composite casing is preformed in the shape of a cylinder, one end being closed by a crimping or stapling the material of the inner or outer or both layers of the casing.  The sealed capsule or container is then introduced into the cartridge and the other end similarly closed.  In another embodiment, the outer casing is continuous and is provided with a series of holes through which the vapour may pass.
Patent GB-779240-A (GB)
Title: Collapsible container and method for the production thereof
IPC: B29C65/04
Filed: 1953-03-24
Abstract: 779,240. Packaging flexible and collapsible containers. RADO, L. Aug. 11, 1953 [March 24, 1953 ; April 21, 1953], Nos. 8062/53 and 10936/53. Classes 66 and 94(1). A flexible container made from thermoplastic materials or materials coated, laminated or impregnated with thermoplastic materials, which may or may not be resilient, has its nozzle welded in a side wall substantially near to one narrowed end of the container. As shown in Fig. 2 the container comprises two superposed sheets 1, 1a of the same width united at their edges 2, 2a and the nozzle, also of thermoplastic material, has a flange heatsealed on the inside of the container wall. The container may be divided by a central longitudinal partition into two compartments each provided with a nozzle. In a process for making such containers, a sheet of thermoplastic material 1, Fig. 7, is provided with a series of spaced perforations through each of which the unflanged end of a nozzle 3 is passed. The nozzle flanges 5 are heat-sealed around the periphery of the perforations and the sheet is then sealed along its longitudinal edges 13, 14 to a similar unperforated sheet 12 forming the opposite wall of the container. Alternatively the container may be made from a single sheet of material folded along a longitudinal edge. Thereafter the resulting tubing is filled with the desired fluid contents and the final containers are produced in known manner by heating and pressure tools. Alternatively the individual containers may be filled separately after formation from the continuous tubing.
Patent GB-904853-A (GB)
Title: Process for the polymerisation of alpha-olefins
IPC: C08F4/70
Filed: 1961-03-06
Abstract: Olefins may be polymerized in the presence of a catalyst prepared by a process in which a liquid halide of a transition metal of Group IV, V, VI, or VIII of the Periodic Table in its maximum valency state impregnated on an inert support is treated with an organometallic compound impregnated on an inert support. The catalyst may be treated with additional organometallic compound impregnated on an inert support or with an activator, e.g. pyridine or a phosphine, impregnated on an inert support. The support may be a granular polymer, e.g. polypropylene, silica, alumina, calcium carbonate, calcium chloride, lithium chloride or sodium chloride. Polymerization may be effected in the absence of a liquid medium, e.g. by continuous gas phase polymerization using fluidized catalyst beds.  Examples describe the polymerization of propylene using catalysts prepared from titanium tetrachloride, triethyl aluminium or a mixture of triethyl aluminium etherate and diethyl beryllium, and pyridine supported on polypropylene. Specification 882,560 is referred to.
Patent GB-659112-A (GB)
Title: Improvements in despatch and similar cases
IPC: A45C5/00
Filed: 1949-03-01
Abstract: 659,112. Cases. FINNIGANS, Ltd., and FINNIGAN, B. W. March 25,1949, No. 8149. [Classes 18 and 133] A despatch or brief case is formed with a rectangular base and is divided into two allow the edge to abut against the ends a<SP>3</SP>. Locks on the sides receive bolts d' on the ends of a strap d<SP>2</SP> secured to the horizontal portion of strip a<SP>2</SP>. One compartment has a telescopic insert a<SP>5</SP> secured to the central partition and the other compartment has a pocket a<SP>6</SP> closed by a strap a' and straps a<SP>9</SP> are provided in the lid for securing articles therein.
Patent GB-478160-A (GB)
Title: Device for operating firearms in armoured vehicles
IPC: F41G1/46
Filed: 1937-03-19
Abstract: 478,160. Armoured vehicles. CESKOSLOVENSKA ZBROJOVKA AKCIOVA SIOLECNOST, BRNO. March 19, 1937, No. 8187. Convention date, March 20, 1936. [Classes 92 (i) and 119] An adjustable framework 4, 5, 7, detachably carried by a gun mounted to turn in the spherical or like embrasure joint 2 of an armoured vehicle, facilitates operation of the gun by the driver of the vehicle. The framework carries a direct sighting device M, a trigger-operating means S, and an adjustable shoulder-piece O. The arms 4, 5 are shown connected respectively to the movable joint member 2 and to a band 6 on the gun. For adjusting the length of the arms 4, 5 to suit the gunner, clampable extending teeth 8 are provided as shown, or the arms may be made telescopic.
Patent GB-409388-A (GB)
Title: A new or improved composite sheet material
IPC: B32B21/04
Filed: 1933-03-20
Abstract: 409,388. Compound sheet material. BAMBER, C. K., 9, Victoria Street, London. March 20, 1933, No. 8227/32. [Class 140.] In the manufacture of composite sheet material, a sheet of rubber is interposed between a ply of wood and a ply or backing of wood, millboard &c., the sheet and plies being united by rubber latex. The rubber sheet may be very thin, and may be vulcanized or not. To ensure vulcanization of the latex, finely powdered sulphur may be blown or dusted on to the surfaces while tacky; sulphur may be mixed with the latex. The rubber sheet may have a free sulphur content to assist the vulcanization. When a number of wood plies are employed, the internal plies may be perforated, so that the rubber sheets on the opposite sides of the ply are pressed into contact through the perforations.
Patent GB-824137-A (GB)
Title: An improved structural member and structures incorporating one or more such members
Inventor: SWEETLAND ARTHUR GEORGE
IPC: C23F15/00
Filed: 1957-03-13
Abstract: 824,137. Supporting conductors. BRITISH INSULATED CALLENDER'S CABLES Ltd. March 12, 1958 [March 13, 1957], No. 8318/57. Class 36. The tubes 1 of a structure for supporting contact wires are made of steel enclosed in a tightly fitting envelope 2 of copper and closed at the ends to seal off the interior of the tubes from the atmosphere. Fig. 1 shows one end of a tube closed by a cap 3 of tinned copper soldered to the tube, the corners of the cap being of a radius to allow for expansion and contraction of the tube without damage to the soldered joint. The cap may alternatively be made of neoprene or other elastomer which is stretched over the tube and secured by adhesive. Fig. 3 shows a cantilever structure embodying struts 6, 7 and an inner registration arm 8 all made as in Fig. 1. The struts 6, 7 are secured to insulators 9, 17 which are attached to a mast or other support 13 so as to allow movement of the struts in two planes. The main catenary is supported by a swivel clamp 16 and the arm 8 is supported by a V-wire 25 attached to the main catenary at two points equidistant from the clamp 16. An outer registration arm 30 made of coppercovered steel tube is pivoted to a clamp on an adjustable bracket 31 clamped to the arm 8. The arm 30 can swing in a vertical plane and carries a clip 33 for the contact wire. The metal fittings of the structure are made of nickel-gunmetal, aluminium bronze or other metal or alloy close to copper in the electrochemical series. The structure shown in Fig. 3 is for use when the support 13 is on the inside of the curve of a track. When the support is on the outside, the arm 30 projects outwardly in the opposite direction to that shown in Fig. 3, and on a straight track the two types are used alternately to provide a continuous change in the position of the contact wire.
Patent GB-912172-A (GB)
Title: Static switching arrangements for railway signalling control circuits
Inventor: DUCKETT HAROLD
IPC: B61L1/20
Filed: 1959-03-11
Abstract: 912,172. Railway signal control circuits. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. March 11, 1960 [March 11, 1959], No. 8396/59. Class 105. In a railway signalling system, direct current control signals e supplied from a track circuit or manually operated contacts of a route selection switch incorporated into a control desk, said signal e being indicative of the prevailing state of the device represented thereby, opens respective gate circuits G8, G9 for a further applied A.C. signal from the bus-bars B1, B2 generated in an oscillator OS and amplified in amplifier AS and the A.C. output from the gate circuit or group of gate circuits G8, G9 is applied to only A.C.-responsive means, e.g. in the form of an A.C. amplifier 3A1 whose output in the form of a direct current is applied to utilization means. If the gating device fails, there is no effective A.C. output of the gate and hence failure to safety condition is obtained. As shown, the utilization circuit SCR is made dependent upon the outputs of the two selector circuits SCP and SCQ, each comprising groups of gate circuits G8, G9 and G10, G11. Selector circuit SCR has a group of gate circuits G12, G13. Amplifier 3A1 gives a single or multiple output D.C. signal in response to the passage of A.C. through the gates G8, G9, and such an output D.C. signal is applied to control a respective gating device G12 in selector SCR at different destinations. Similarly a D.C. signal is applied to gate circuit G13 from selector SCQ when this latter is in desired de-energized condition via an electrical switch unit 2A2, simulating the operation of a relay to back contact condition. Such electrical switch unit is described in connection with Figs. 2 and 3 (not shown). This "off" signal applied to G13 is a D.C. output from the amplifier AD in response to no signal from amplifier 4A1. For an output from the amplifier 4A1 when the gate circuit group is energized, the amplifier A1 gives an " on " output signal. Selector SCR is provided with an amplifier 5A1 and a switch unit 3A2 similar to switch unit 2A2. The oscillator O and gate circuit G as well as the amplifiers A0 and A1 of the switch circuits 2A2, 3A2, employ transistors.
Patent GB-422821-A (GB)
Title: Improvements relating to the preserving of raw hides and skins
IPC: C14C1/02
Filed: 1934-03-17
Abstract: Raw hides and skins are preserved prior to dressing and tanning by treating with a mixture of sodium chloride, e.g. rock salt, and pulverized tanned leather, or by spraying with a glue solution extracted from hides treated with this mixture.  The mixture of sodium chloride and leather may be moistened with an extract from tanned leather, and may have added pulverized tobacco or tobacco extract to which small quantities of an aromatic carbon compound such as naphthalene or b -naphthol may be added.  The preservative mixture may be applied finely powdered in a thin layer to oiled paper, textile fabric, seaweed, cotton or wool waste or like carrier, which is then laid on the hide to be preserved.  An adhesive powder may be mixed with the preservative or may be added to the carrier which is then moistened and the preservative added thereto.  The carrier may be passed between pressure rolls to apply the preservative more firmly.  The preservative may be treated alone or mounted on a carrier with hot or cold smoke.  A glue solution for use as a preservative may be obtained by placing hide, which has been treated with a mixture of pulverized leather and rock salt and allowed to stand for 2-3 weeks, in a water bath at 100 DEG  C. for about 24 hours, filtering the glue solution obtained and mixing with it rock salt solution to which an aromatic carbon compound such as b -naphthol is preferably added.  The solution gelatinizes and when used is liquefied by heating and sprayed on the inner surface of the hide.
Patent GB-1030272-A (GB)
Title: A process for the production of a prestressed concrete pressure vessel for a nuclear reactor
IPC: G21C13/093
Filed: 1964-02-28
Abstract: 1,030,272. Reactor pressure vessels. SIEMENS SCHUCKERTWERKE A.G. Feb. 28, 1964 [March 2, 1963], No. 8483/64. Heading G6C. A process for-assembling a prestressed con- Crete nuclear reactor pressure vessel comprises assembling the vessel from prefabricated wall parts, interconnecting the wall parts with tensioning members, raising the vessel interior to at least its rated operating pressure, and filling the thus formed gaps between the parts with pressure resisting material. Pressure is applied by placing a rubber bag within the vessel and filling it with water under pressure. The vessel is intended for a pressurized water reactor, and comprises a plurality of trapezoidal cross-section wall Sections 11, prestressed (by wires 15) in their longitudinal direction, and held together by circumferential wires 18. Top closure 13 is steel and bottom closure 12 is concrete; the top closure is bolted, and may be lowered for access to the vessel. A layer of steel sheets 21 with overlapping edges is placed inside the concrete, and inside this is a further think layer 26 of austenitic steel. When under internal pressure, the concrete wall sections 11 move apart, as do the steel plates 21; the gaps thus formed are filled with concrete and steel respectively prior to relaxing the pressure. The composite steel lining may be water or gas cooled by means of pipes embedded in the concrete adjacent the lining, or by ducts within the lining itself, where this is formed by several, layers of thinner sheet. Alternative wall section shapes referred to annular, half annular, triangular and hexagonal; in these cases, the tensioning may be steel bands or a steel skin. Alternative shapes to the ellipsoidal vessel shown are ellipsoidal with external cylindrical steps (Fig. 5, not shown) and a slightly tapered cylinder; the vessel may also be spherical.
Patent GB-1200710-A (GB)
Title: Improvements in or relating to installations for launching life-saving vessels
Inventor: ONCINA ROSENDO CHORRO
IPC: B63B23/32
Filed: 1968-11-20
Abstract: 1,200,710. Life-boat launching gear. R. C. ONCINA. 20 Nov., 1968, No. 8497/70. Divided out of 1,200,709. Heading B7S. A life-boat as disclosed and claimed in Specification 1,200,709, is launched from guides 19 adjustably supported by hydraulic rams 20, 22 (preferably at 30 degrees) and having rollers or wheels 23 engaging slides on the capsule. Further rollers 24 bear on the upper surface of these rails to anchor the life boat, and when launching occurs, to prevent the boat tipping or deviating from a straight course. Release mechanism is provided on the guides and is operable by a cable inside the boat. A float is also arranged to actuate the release mechanism should the parent ship sink.
Patent GB-1345107-A (GB)
Title: Rotary piston machine
IPC: F04C18/12
Filed: 1972-02-24
Abstract: 1345107 Rotary positive-displacement machines WINKELSTRATER GmbH Gebr 24 Feb 1972 [24 Feb 1971] 8506/72 Heading F1F In a Roots<SP>1</SP> blower that may be used as a vacuum pump pistons 2 with symmetrical profiles are coupled by gears 5 and each piston has surfaces 9, 10 following the tip and base circles 7, 8 and linked by first and second surfaces 11, 12 and 16, 17. The portion 12 of each first surface is parallel with the longitudinal axis 3 and the other portion 11 has its centre of curvature 13 at the intersection of the pitch circle 6 with a radial line 14 at an angle 15 of about 22 degrees. The radius of the portion 11 is the difference between the radii of the circles 6, 7. The portion 16 of each second surface is generated by the other piston and is joined smoothly to the first surface by a portion 17.
Patent GB-400503-A (GB)
Title: A machine for dusting sheet materials
IPC: B41G1/00
Filed: 1933-03-21
Abstract: 400,503. Bronzing and the like. SMITH, G. and SMITH, C., 97, Lea Bridge Road, Leyton, London. March 21, 1933, No. 8514. [Class 100 (ii).] A machine for removing dust or other loosely adherent matter from either or both sides of sheet material comprises a feed table and feed rolls, and a narrow suction nozzle extending the full width of the table and equipped at each side with a brush, one brush being stationary and the other rotatable. As shown for removing excess powder from carton boards 1 ornamented by application of bronze powder to a design printed in adhesive, the boards are passed between stationary brushes 4 and rotary brushes 5 opposing the movement of the boards, suction nozzles 3, 3a being connected by conduits 7, 7a to a fan 8 discharging into a cyclone separator 10. The boards 1 are fed through the machine by collars 12, 12a adjustable axially on their shafts. The boards may subsequently be subjected to calendering, burnishing, embossing, slitting, or maturing operations ; as shown, they are passed between heated conditioning-rollers 26.
Patent GB-635833-A (GB)
Title: Improvements relating to trucks
IPC: F41A9/87
Filed: 1947-03-29
Abstract: 635,833. Vehicle rest bars. ALVIS, Ltd., and DUNN, W. M. March 29, 1947, No. 8568. [Class 108 (ii)] A truck whose width is small compared with its length is provided on each side with a support which can turn about a substantially vertical axis 22 and which comprises an upper and a lower arm 16, 18, these arms being turnable at one end about substantially horizontal axes 20 relative to the truck and being at their other ends pivotally connected to one another by a substantially horizontal pivot 17, means being provided whereby the length of one arm can be varied relative to the other, so moving the latter pivot relative to the ground. The arms 16, 18 are pivotally connected at one end to brackets 21 which are located on and can turn relative to a substantially vertical shaft 22.. The length of the arm 16 may be altered by a double-acting ratchet 25 which turns a threaded spindle 24 engaging threaded sockets 16a, 16b in the arm 16. A shoe 19 is provided at one end of the arm 18. The truck may have a hoist of the kind described in Specification 635,835 or 635,836,.[both in Group XXX], and may have an actuating handle, wheels and braking mechanism of the kind described in Specification 621,945, [Group XXXIV].
Patent GB-394093-A (GB)
Title: Change-speed gear mechanism
IPC: F16H59/04
Filed: 1932-03-23
Abstract: 394,093. Facilitating changing speed. RILEY, P., Castle Works, Aldbourne Road, Coventry. March 23, 1932, No. 8629. [Class 80 (ii).] In change-speed gearing suitable for vehicles of the type having sliding toothed members such as gears 32, 33 or dog clutches 34, 35, noiselessness in the change is effected by auxiliary ratio gearing on two dummy shafts 2, 5 controlled by fluid-pressure means. The gearing shown is as described in Specification 376,535 and the dummy shafts 2, 5 are extensions of the driven shaft 3 and of the counter-shaft 6 respectively. The auxiliary gearing comprises pairs of loose constant-mesh gears 7 .. 10 which are entrained by being thrust by pressure oil against collars 11 fast on the shafts. A source of pressure oil 38 is cut off from supply by a master valve (not shown), except when the engine clutch is disengaged. To put in first gear, a control selector lever 15 moves a selector bar 21 to the right. This first brings a port 37 to connect a port 23 to pressure oil which is delivered to two pipes 41, 42. The gears on the shaft 2 of the two pairs 7, 9 are both clutched to the shaft 2, while the other gear of the pair 7 on the shaft 5 is clutched to that shaft. The pair 7 is therefore operative to bring the teeth of the transmission gears 32 to proper speed for engagement. Lost motion at 22 between the rod 21 and a slider 20 carrying a fork 17 is thus taken up and the gears are enmeshed. Continued movement of the rod 21 brings an exhaust groove 44 over the port 23 so as to disconnect the auxiliary drive. Tappets 31 on the back of the rod 21 through a rocking lever 28 lock and unlock the slider 20 as required. Movement of the rod 21 to the left for second speed connects to oil a port 24 and pipes 46, 47. To the shaft 5 are clutched the two gears thereon of the pairs 8, 9 and to the shaft 2 are clutched two gears of the pairs 8, 10, so that the pair 8 is operative to time the transmission gears 33, while a groove 50 disconnects the auxiliary train on completion of the stroke. On sliding another selector rod (not shown), to the right for third speed, oil passes from a port 25 to pipes 41, 47 to render operative the auxiliary pair 9. Sliding to the left for direct drive connects to oil a port 26 and pipes 46, 49 to render operative the pair 10 which corresponds in ratio to a transmission constantmesh pair 36. Specification 257,413, [Class 80 (ii), Gearing, Variable-speed &c.], and 392,330 are referred to in the Provisional Specification.