baber/WOPTO huggingface dataset:
Patent GB-115925-A (GB)
Title: Improvements in Constructing Periscopes and Instruments in which Prisms are Used.
IPC: G02B23/08
Filed: 1917-06-12
Abstract: 115,925. Beck, C., and Beck, H. C. June 12, 1917. Telescopes; periscopes.-A right-angle prism a, Fig. 1, for telescopes and periscopes is mounted in a cylindrical tube f by means of a wooden cylinder b provided with a groove to receive the prism a, which is secured in position by the bent metal strip d with apertures e, e<1> for allowing passage of light. The tube f may be cut away as shown at f<1>, Fig. 3, between the prism mount and the instrument, so as to provide a fragile connexion. In a modification, the connexion f<1> may be made of strong and thick metal and loosely clipped to the instrument.
Patent GB-1092177-A (GB)
Title: Improvements relating to a material dispensing device
Inventor: ROBERTSON GAVIN WILLIAM EDWARD
IPC: G01N1/18
Filed: 1965-02-26
Abstract: 1,092,177. Automatically controlled fraction dispensing device. BAIRD & TATLOCK (LONDON) Ltd. Feb. 22, 1966 [Feb. 26, 1965], No. 8421/65. Heading B1X. Material is dispensed by a dispenser 55A into containers arranged in rows in a rectangular array by causing the dispenser to move under the control of a first reversible motor along a row, with a dwell period in registration with each container, until its reaches the end of the row when a switch firstly actuates a second motor which causes the dispenser to move in a direction normal to the row until it comes opposite the end of the next row and secondly reverses the first motor so that the dispenser moves back along the second row, and so on across the array. Liquid from a chromatographic column 58 is supplied via a pump 57 to the dispenser 55A. The dispenser is carried by a nut 48 movable on a lead screw 39 along an arm 21 of a carriage 14 which is itself movable relative to the base 1 on which a cradle 8 containing the array of rows of vessels is fixed, along a pair of rails 13 extending longitudinally of a housing 2. The dispenser 55 is traversed successively to register with each vessel in a row with a dwell period during which the peristaltic pump 57 operates and at the end of the row the nut 48 engages a stop 50 which moves a rod 49 and causes a switch 85 (Fig. 4 not shown) to be operated to energize a relay coil 75 (Fig. 1) via a rectifier 77 and a two way circuit (Fig. 5 not shown, is a diagram of a control circuit). The relay coil 75 causes energisation of a motor 22 which moves the carriage until the dispenser is opposite the next row of vessels at which time a switch 84 is operated by a cam plate 76 mounted on a bar 27 to de-energise the relay 75. A switch 73 is also operated by cam plate 76 fractionally in advance of switch 84 to reverse the direction of rotation of a motor 42. Subsequent energisation of motor 42 as a result of the de-energisation of motor 22 due to relay 75 causes the dispenser 55 to return along the second row of vessels until a stop 51 is reached. The dispenser continues its path along each row in turn until the end of the cradle is reached when a switch is operated to disconnect the current supply.
Patent GB-1132498-A (GB)
Title: Improvements relating to automatic locking mechanisms for lift-shaft doors
IPC: B66B13/20
Filed: 1966-02-25
Abstract: 1,132,498. Locking devices for lift shaft doors. K. A. SCHMERSAL & CO. 25 Feb., 1966 [26 Feb., 1965; 8 July, 1965], No. 8446/66. Heading B8L. [Also in Division E2] An automatic locking mechanism for a lift shaft door 20, comprises an axially slidable bolt 2 for engagement with a socket in the door, a switch 10 for connection in a control circuit for the hoisting mechanism of the cage which is operated by the bolt in such a way that the switch is opened when the bolt is in a withdrawn position, a linkage 3, 4, 5 intended for operation by a slide 1 on the lift cage and operative to move the bolt to its withdrawn position, and a blocking device 11 for preventing return movement of the linkage and hence of the bolt with consequent closing of the switch when the door is open, the device including a pair of permanent magnets 12, 21 one of which 21 is for mounting on the lift shaft door in a position such as to repel the second against a biasing force when the door is closed to a position in which the device is rendered inoperative. In the construction shown the magnet 12 is connected to the blocking device 11 so that when the door is closed the device is moved upwardly against the force of a spring 13; the upward movement of the device moves a projection 8 out of the path of a catch 9 connected to a bell crank 3 of the linkage thus allowing movement of the linkage. The bell crank 3 has one end portion engaging the bolt 2 and the other end portion connected to an intermediate portion of a slidable rod 4 of the linkage which in turn is moved via a lever 5 of the linkage and a roller by the slide 6 on the lift cage. The device 11 has an oblique end surface 14 constituting a ramp co-operating with a pin 15 rigidly fixed to the rod 4 and when the door is unlocked the pin 15 holds the device 11 in the position in which the projection 8 is in the path of the catch 9 so that the bolt 2 cannot be moved to locking position. In the event of the slide 6 being retracted by an electromagnet from the path of the roller before the lift shaft door has closed the hoisting mechanism still cannot be operated since the magnet 21 is not in a position to influence the magnet 12 so that the device 11 is in its lower position and the projection 8 is in engagement with the catch 9.
Patent GB-150243-A (GB)
Title: Improvements in and relating to draught excluders
IPC: E06B7/20
Filed: 1920-03-22
Abstract: 150,243. Borton, A. F. March 22, 1920. Draught-excluders. - A draught-excluder for doors consists of a strip a of felt &c. held between two metal troughs b, c pivoted to brackets e on the door. When the door closes, a projection a on the door post y causes the strips 1, 2 to press against door and floor as shown in Fig. 3. When the door opens, springs surrounding the pivots raise the strip 2 clear of the floor as shown in Fig. 2. The support h forming bearings for the pivots are secured to and within the ends of the troughs so that the strips mal(e contact the full width between the door posts.
Patent GB-1466183-A (GB)
Title: Process for producing polytetrafluorethylene tubes
IPC: B29C48/19
Filed: 1974-02-26
Abstract: 1466183 Making polytetrafluoroethylene tubes COMPAGNIE PLASTIC OHNIUM 26 Feb 1974 [27 Feb 1973] 8614/74 Heading F2 [Also in Division B5] A process for producing a polytetrafluoroethylene tube comprises winding on to a mandrel between 10 and 100 layers of an unsintered extruded and calendered PTFE strip having a thickness of 0À05 to 0À20 mm., bringing the wound strip to a temperature greater than the sintering temperature thereof and below 400 C. for a time sufficient to fuse the PTFE, cooling the tube and mandrel and removing the mandrel. During calendering the strip may undergo a length increase between 5 and 20 times its uncalendered length. The strip may be helically wound at an angle between 45 and 90 degrees to the tube axis with overlapping, contiguous or non-contiguous turns. In building up the tube wall different windings and angles of winding may be used in alternate layers and the direction of wind may be reversed. The innermost layer may be charged with antistatic material, e.g. graphite and reinforcing members, e.g. circular helical or longitudinal wires or electrical conductors may be incorporated during the strip winding process. The tube may be strengthened by axially spaced raised portions formed on its surface from superimposed layers of PTFE strip wound either spirally in one plane or helically. After the winding operation the PTFE layers are gelled by heating at a temperature between the gelling temperature of PTFE and 400 C., e.g. at 365 C. for 1¢ hrs. The tube is then cooled on the mandrel to 285 C. at a rate of between 10 to 100 C. per hour and thereafter at a greater rate. The PTFE tubes formed by this process have a low permeability and good strength. A PTFE tube may be placed within a metal tube 16, Figs. 8, 9, to protect the inner surface thereof and a flange may be formed on the projecting end 15a of the PTFE tube by forcing the wall back by inserting a former 19, Fig. 8, having a cylindrical portion 20 and a conical portion 21, heated to between 250 and 300 C., into the end of the tube 15 to produce a conical deformation. The conical deformation at the end 15a, Fig. 9, of the PTFE tube is then forced flat against the flange 17 of the metal tube 16 by a former, having a cylindrical portion 20 and a flat portion 22, which is heated to between 250 and 300 C. Flanges may be formed in a similar manner when the PTFE tube is not enclosed by a metal tube.
Patent GB-1097881-A (GB)
Title: Improvements in or relating to catheters
IPC: A61F2/958
Filed: 1965-03-01
Abstract: 1,097,881. Catheters. EDWARDS LABORATORIES Inc. March 1, 1965 [May 27, 1964], No. 8742/65. Heading A5R. A balloon catheter, particularly for remov ing emboli (e.g. blood clots from veins), comprises a balloon 20 which, when deflated, is in a permanently longitudinally tensioned condition. The balloon 20 is secured by bindings 22 and 23 and adhesive to parts of the flexible plastic body 10 which have projections thereon. The portion 15 is provided with longitudinally and circumferentially staggered apertures 16 to allow fluid to pass from syringe 13 via valve 12 to inflate the balloon 20. The catheter may be provided with a flexible resilient tip 31, 32 integral with the balloon to enable the catheter to pass through valve 40.
Patent GB-216274-A (GB)
Title: Improvements in paper clips
IPC: B42F1/00
Filed: 1923-03-28
Abstract: 216,274. Crocker, S. H. March 28, 1923. Clips, pivoted-jaw.-A paper clip of the type comprising pivoted jaws a operated by handles b are closed by springs f of looped wire disposed within the jaws, the ends of the springs bearing against the handles. Each jaw carries a connecting tongue c which enters a slot d in the other jaw, or the tongues c may be separate and enter slots in both jaws, or a pivot pin entering extensions on the jaws may be used. The handles may be formed with grooves b<1>, which house the ends of the springs and which, together with a groove b<2>, act as strengthening means for the handles. The ends of each handle is formed as a ring with a groove b<3>. The spring may be in the form of a single length of wire provided with oppositely-disposed loops, the respective free ends being arranged in engagement with the opposite free arms.
Patent GB-622625-A (GB)
Title: Improvements in, or relating to, lockers usable as seats in ambulances
IPC: A61G3/00
Filed: 1947-04-02
Abstract: 622,625. Road vehicles. AUSTIN MOTOR CO., Ltd., and STANFIELD, J. R. April 2, 1947, No. 8905. [Classes 103 (ii) and 108 (i)] An ambulance is fitted with a seat which may be used as a locker and which is convertible to a stretcher carrier. The seat is fitted with three or more transverse bearers 12 which carry brackets 18 for pivotal attachment of the rails 19 to the outer ends of which is secured one runner 20 for the stretcher wheels or feet. The other runner 17 is secured to the batten 16. When a stretcher is not being carried the runner 20 may be turned about the pivots in brackets 18 until the runner 20 rests on the rubber blocks 22, the lids 13 when closed then serving as seats in conjunction with the backrest 26. A door 23 allows access to the compartment for housing the stretcher when the latter is not in use.
Patent GB-559114-A (GB)
Title: Improvements in and relating to control devices for refrigerating apparatus
IPC: F25B49/02
Filed: 1942-06-29
Abstract: 559,114. Thermal switches. BRITISH THOMSON-HOUSTON CO., Ltd. June 29, 1942, No. 8946. Convention date, July 1. 1941. [Class 38 (v)] An adjustment device for temperature control of, for example, refrigerators comprises an operating member moving a switch member through a resilient connection after a predetermined movement, a stop for the switch member and means for allowing greater movement of the operating member before causing movement of the switch member when desired. In the example, Fig. 3 as applied to defrosting refrigerators, the thermal element 17 operates on an arm 15 which actuates a contact arm 10 through a pivoted tail 18 and spring 22 to give snap action. An extension 26 of arm 10 has a part 26b which is moved to the right in the extreme position of the regulating knob 30 whereby a spring 32 engages a latch 34 and the contacts 13, 14 are separated to require a greater movement of the operating arm 15 before moving the switch member 10. A spring 40 additional to the normal control spring 37 applies increased resistance to movement of the operating arm, in this position. In the modification, Fig. 6, the contacts 64, 68 are on the end of spring plates 63, 69 and, in normal use, contact operation is effected through contact arm 66, extension 61 of which abuts on spring plate 63. A further extension 52 with spring latch 53, 54 for defrosting, is actuated by a press knob 50 on the adjusting knob 51. In addition a " quick-freeze " is obtained by pulling knob 50 swinging the contact arm extension 61 to the left when it rides up on a bent portion 65 of spring contact plate 63 to latch the contacts in closed position until, by an extreme contraction of the bellows the operating arm 58 opens the contacts, through the snap action 71. Specification 363,121 is referred to.
Patent GB-109958-A (GB)
Title: Improvements in or relating to Apparatus for Impregnating Liquids with Carbonic Acid or other Gases.
Inventor: PINDSTOFTE ANDERS ANDERSEN
IPC: B01F3/04
Filed: 1917-06-21
Abstract: 109,958. Pindstofte, A. A. June 21, 1917. Forcing liquid into gas; feed and discharge, regulating.-Liquid is fed to a chamber b by a pipe h provided with a float-operated sliding valve i and descends in films through an atmosphere of gas fed by a pipe c, the impregnated liquid collecting in the lower part of the chamber and the separated air escaping at the top. The liquid passes through slots n in the pipe h to a chamber p in the valve i and thence by tubes o in the valve to compartments s in a fixed drum r in the bottom of which are holes for delivering the liquid to lengths of wires, chain, or gauze u. The wires &c. are stretched between the drum and the flange v on the support 20 of the drum. The valve i is connected by a rod j to a float or tank k suspended from counterweighted levers 1, 2. The counterweights 3, 4 may be arranged in the chamber as shown or to permit of manual actuation, the counterweights may be mounted on arms passing through stuffing-boxes into the chamber. The tank is provided with a vent 5 and is more or less filled with liquid to adjust the buoyancy. The liquid-discharge pipe d may communicate with a chamber provided with a floatoperated valve for controlling the escape of excess gas.
Patent GB-549161-A (GB)
Title: Improvements in or relating to devices for joining together or anchoring the ends of flexible elements such as stranded wire cables
IPC: H01R4/50
Filed: 1941-07-16
Abstract: 549,161. Cable couplings. HIGHFIELD, J. S. July 16, 1941, No. 9004. [Class 109] In a device for joining or anchoring wire cables or other flexible elements of the kind in which an externally conical member is forced into an internally conical sleeve of less angle of taper so as to grip the cable &c. for example as described in Specifications 340,081 and 365,200, the externally conical member 6 is formed with longitudinal slots extending from the thick end nearly to the thin end. When forced, as by means of a screw jack, into the sleeve 4, the member 6 grips the cable 1, being serrated at 6d for this purpose. The thick end of the member 6 may be made cylindrical for a part of its length, and the thin end may be softer than the remainder.
Patent GB-1467487-A (GB)
Title: X-ray tubes
IPC: H01J35/06
Filed: 1974-02-27
Abstract: 1467487 X-Ray tubes SIEMENS AG 27 Feb 1974 [28 Feb 1973] 9011/74 Heading H1D A rotary anode X-ray tube has a cathode coil outside the perpendicular projection of the anode focal surface 15 and the cathode structure provides or is provided with an ion absorbent region on to which ions impinge. The region may be a 0À5 to 5 mm. thick heat conductive plate, e.g. W, Mo, Ta, Ti or Zr. Fig. 3 (not shown) includes plate (18) of infusible heat conducting material (e.g. W), Fig. 4 (not shown), includes Mo plate (19) beyond an opening (20), while Fig. 5 (not shown) includes Ta plate (23) surrounded by metal walls and receiving ions deflected by magnetic field (21) provided by an electromagnet or permanent magnet. Beam (24) (Fig. 6, not shown), may be flat, heavily condensed by magnetic and electrostatic lenses and under considerable acceleration and impinging obliquely on the anode. In Fig. 7 (not shown), beam 28 is deflected through 90 degrees by the electric field provided by holder 27 configuration, and ions impinge on W plate (32) in hollow space (33). Means may be provided for guiding the electrons so that the output direction of the electrons differs from the direction of impingement on the anode by up to 180 degrees.
Patent GB-121752-A (GB)
Title: Improvements in or relating to Means or Apparatus for Transmitting and Utilizing Heat.
Inventor: PEASE EDWARD LLOYD
IPC: F22B1/18
Filed: 1917-06-22
Abstract: 121,752. Pease, E. L. June 22, 1917. Superheating by hot liquids.-The heat of waste exhaust or furnace gases or of other hot fluids or bodies is utilised by bringing them into direct and intimate contact with a liquid which is not acid and has a much higher boiling-point than water, and which is divided into sprays or films, and then passing the liquid thus heated through heat exchange apparatus to superheat steam, the abstraction, transmission and exchange of heat being effected continuously and at a high temperature. A solution of calcium chloride, creosote or other suitable liquid falls from spraying- nozzles d through a tower a, up which hot gases are drawn by a suction device g. The heated liquid passes through a heat exchanger i, for example of the kind described in Specfications 4154/15, 103,492, and 104,721, [all in Class 64 (ii), Heating systems &c.], and after giving up its heat is returned to the spraying nozzles by a pump k. The hot liquid passes through a box n having a side aperature through which solid matter may be removed by a scraper m. The gases may be first cooled by passing them through water sprays in a separate tower. Instead of passing through sprays of liquid, the gases may flow over films on rotating disks dipping into the liquid.
Patent GB-232217-A (GB)
Title: Improvements in and relating to manufacture of laminated material from spinnable textile woven fabrics
IPC: D06M17/04
Filed: 1925-04-06
Abstract: 232,217. British Thomson-Houston Co., Ltd., Assignees of Guay, E. J.). April 8, 1924, [Convention date]. Making compound fabrics.-In the manufacture of an indurated compound material, suitable for making gear wheels, from woven fabric and a binding agent such as phenolic condensation product, the fabric is saturated with a solution of the binding agent and then dried in a vacuum to remove the solvent and bring the adhesive to the surface, after which a stack of pieces of the material is subjected to heavy pressure and to heat, which fuses the binder. Fabric from a roll 11 is directed by rollers and guides 14 through a bath 5 of the solution and then through a preliminary drying- chamber 6 divided into compartments and heated by steam coils 7. The fabric is thus dried to such a degree that it can be conveniently handled and does not stick. It is then cut into strips which are stacked on wire screens on shelves 16 in a drying oven 15 connected by a pipe 20 to a vacuum pump. The oven is heated by hot water passed through the shelves. Pieces of the fabric so treated may be stacked together and formed directly by pressure and heating, into gear wheel blanks, as described in Specifications 215,788 and 225,213, [both in Class 80 (i), Gearing, Belt &c.]. Specification 185,662 also is referred to.
Patent GB-370637-A (GB)
Title: Improvements in and relating to electric distribution systems
IPC: H02M5/08
Filed: 1931-03-25
Abstract: 370,637. Supply systems for low voltage apparatus. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Belt, T. A. E. ; 144, Waverly Place, Schenectady, New York, U.S.A.) March 25, 1931, No. 9141. Convention date, March 27, 1930. [Class 38 (iv).] Automatic regulation, systems depending on static transformers.-A low voltage load circuit is supplied from a high voltage A.C. power transmission line through a coupling connected between two different potential points in the line and comprising a condenser 4 in series with the primary winding 6 of a step-down transformer 7. The secondary winding 8 is connected to the load circuit 9 in which the voltage is regulated by means 12 responsive to the voltage to vary the relative impedance of the condenser and transformer by exerting a control on the saturation of the transformer. In the regulator, Fig. 2, a bridge arrangement 18 is connected across the load circuit and comprises two adjustable resistances 21, 22 of substantially zero temperature resistance coefficient and two resistances 28, 24 of positive or negative coefficients. A transformer 25 is connected across the mid-points of the bridge, and its secondary to the grids of valve 19. The transformer 20 connected across the low voltage mains has its secondaries in circuit with the valve 19 and the saturation winding 17 of the step-down transformer 7. The bridge is balanced in normal circumstances but upon rise in load current and consequent fall of voltage across the load, an increased current flows through the bridge and the consequent rise in temperature of the two resistances 22, 24 (e.g. ballast lamps) unbalances the bridge so that current flows in the transformer 25. This produces a bias on the grids of the valve, reducing the amount of current flowing therethrough to the saturation winding. The decrease in the effect of the saturation winding produces a corresponding rise in the voltage transformed in the secondary winding and in the load circuit, so that by suitable adjustment of the dimensions of the transformers, voltage regulation is secured.
Patent GB-869460-A (GB)
Title: Phenyl-tetrahydropyryl-piperazines
IPC: C07D309/14
Filed: 1960-03-15
Abstract: The invention comprises compounds of the formula:  <FORM:0869460/IV (b)/1> wherein R is a hydrogen or halogen atom or a C1-5 alkyl or alkoxy group, and acid addition salts thereof, and pharmaceutical compositions (see Group VI) containing these compounds.  The compounds are prepared by reacting appropriate phenylpiperazines with 2-hydroxy-tetrahydropyran and, if desired, converting the products into their acid addition salts.  The compounds are anorexic agents.ALSO:Pharmaceutical compositions comprise compounds of the formula <FORM:0869460/VI/1> wherein R is a hydrogen or halogen atom or a C1-5 alkyl or alkoxy group, or acid addition salts thereof, with a diluent. Preparations may be in the form of tablets, powders, capsules, suspensions and solutions.  Specified salts are hydrohalides, sulphates and maleates.
Patent GB-590537-A (GB)
Title: Improvements in and relating to spring shackle flexible bearings
IPC: B60G11/42
Filed: 1945-04-12
Abstract: 590,537. Spring shackles. ASSOCIATED EQUIPMENT CO., Ltd., RACKHAM, G. J., and STOCK, C. S. R. April 12, 1945, No. 9162. [Class 108 (iii)] A spring shackle flexible bearing particularly for heavy vehicles, has a bush c, of resilient rubber in the form of a half round bearing disposed outside the spring eye a, the rubber being vulcanised or otherwise suitably bonded to inner and outer metal shells b, d, associated with the spring eye a and the shackle or frame e respectively. A pin g which passes freely through the spring eye a and the remaining plate f prevents the spring falling away from the chassis. Extensions o of the pin g may be used as radiator supports. The bearing may be adapted for use in a connecting shackle as shown in Fig. 3.