baber/WOPTO huggingface dataset:
Patent GB-519041-A (GB)
Title: Improvements in or relating to automatic ticketing equipment for telecommunication exchange systems
IPC: H04M15/38
Filed: 1938-09-13
Abstract: 519,041. Automatic exchange systems. STANDARD TELEPHONES & CABLES, Ltd. (Hertog, M. den, and Haigh, L. B.). Sept. 13, 1938, No. 26704. [Class 40 (iv)] A register-controller more particularly for the digits of the calling and wanted numbers and tariff rate in automatic ticketing systems comprises elements such as cam discs, one for each digit, stepped from normal in succession by a common magnet to positions depending on the digits, and subsequently stepped forward in succession to a normal position to control the transmission of the complements of the digits. The ticket printer is arranged to print the digits on receipt of their complements. Each disc 10 controls normal contacts 6 and carries a ratchet wheel 11 engaged by stepping, positioning and holding pawls 12, 13, 14. The successive operation of the stepping pawls is effected by a cam shaft 24 having a similar ratchet wheel and pawls, and controlled by back-stroke magnet B which is operated during impulse trains. The cams 23 on this shaft successively engage levers 20 which cause the engagement of plungers 19 on the stepping pawls with the armature 26 of stepping magnet A. Transmission of the stored digits is controlled by sending impulses simultaneously to the magnet A and to the printer, each digit being terminated when a cam disc opens the normal contacts 6. The cam shaft also controls normal contacts. Specifications 510,012 and 517,485, [Group XXXVIII], are referred to.
Patent GB-409577-A (GB)
Title: Improvements in and relating to installations for detecting the presence of suspended matters in fluids
IPC: G01N21/53
Filed: 1933-04-21
Abstract: 409,577. Turbidometers. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.- (Kidde & Co., Inc., W. ; 140, Cedar Street, New York, U.S.A.) April 21, 1933, No. 26720. Divided on 406,648, under which a Specification was laid open to inspection under Sect. 91 of the Acts, May 12, 1933. [Class 97 (iii).] An installation for detecting the presence of smoke or other suspended matter in fluids of the kind comprising a plurality of pipes through which fluid from respective protected areas is drawn continuously, comprises means in the pipe walls for permitting visual inspection of the fluid in the pipes, and a light-sensitive device for detecting the presence of smoke automatically. The smoke pipes 10 are connected to a chamber 12 in which a switch device 29 is rotated to connect them successively to the chamber 32 in which a selenium cell 41 is arranged. When smoke is present in any fluid stream, light from a source 39 is reflected on to the cell 41. Each pipe 10 is provided with a window 58 and with a reflector 59 arranged to reflect light from a source 61 down the pipe. Thus, smoke in any pipe 10 can be observed through the window 58. The selenium cell controls, through a thermionic valve, a relay which, when energized, closes an alarm circuit and an auxiliary battery circuit. Specification 406,648 is referred to.
Patent GB-482379-A (GB)
Title: Improvements in travelling scrapers for sedimentation tanks
IPC: E04H4/16
Filed: 1936-10-02
Abstract: 482,379. Gravity-separation apparatus. HARTLEY, C. J. Oct. 2, 1936, Nos. 26727 and 35493. [Class 111] A sludge scraper 14 and a scumming blade 17 are supported by arms pivoted on a structure 10 moving over a settling tank in such manner that either scraper or blade can be raised above the liquid level or that of the tank walls. As shown the scraper and blade are supported at the ends of arms 15. Chains 24 passing round pulleys 25, 26 connect the arms 15 to counterweights 27. In a modification, the arms 15 are in parts hinged together at the pivots, the arrangement being such that the blade 17 normally falls, when the scraper 14 is raised, but can be raised independently of the scraper. In a further modification, the scraper 14 is carried by counterweighted arms pivoted at the ends of the arms 15. The chains 24 are connected to reduction gear operated by an electric motor. The arms which carry the scumming blade are pivoted independently of the arms 15 and are turned by a manually operated winch. A scum trough, which may have a covering grid or grating, may be arranged at one end of the tank and provided with an incline up which the scumming blade is driven. Specification 407,122 is referred to.
Patent GB-1015266-A (GB)
Title: Improvements in or relating to reciprocating piston devices
IPC: F04B53/14
Filed: 1963-07-05
Abstract: 1,015,266. Compressors. PHILIPS GLOEILAMPEN FABRIEKEN. N.V. July 5, 1963 [July 10, 1962], No. 26753/63. Heading F1N. A compressor piston 2 is actuated by a column of liquid 7 extending between the underside and the upper side of a driven piston 8 and is sealed by a rolling diaphragm 6 clamped between positions of the cylinder 1 and serving to separate the compressor space 9 from an auxiliary liquid space 5 formed between the piston 2 and cylinder 1. Shoulders 3, 4 of equal area on the piston 2 and cylinder 1 serve to maintain constant the volume of space 5 which together with space 9 is connected by ducts 23, 24 to opposite sides of a spring- loaded diaphragm 20 which divides a housing 19 into gas and liquid spaces 22, 21 and carries a valve 25 which on a pressure drop in space 22 and hence space 9 opens to allow liquid from space 21 and hence space 5 to be discharged through a duct 26 to a container 28 thereby maintaining constant the pressure differential between spaces 5, 9. Make-up liquid for space 5 passes from column 7 up the gap 33 between the cylinder 1 and the piston 2 and the stroke of the latter is limited by a bleed hole 32 in the cylinder wall.
Patent GB-470218-A (GB)
Title: Anti-rattle dovetail for doors
IPC: B60J1/00
Filed: 1936-10-02
Abstract: 470,218. Door stops. THURSTON, A. P. (Bassick Co.) Oct. 2, 1936, No. 26787. [Class 65 (i)] In an anti-rattle device consisting of a tapered wedge member on the door edge engaging a socket on the striking post, the socket com prises a pair of sheet meta blocks 22 slidable in a casing 16 against the action o: springs 29. The blocks 22 are guided, and their for ward motion is limited, by lugs 20 bent back from the casing and engaging holes in the blocks. The springs 29 are located by lugs pressed up from the rear wall of the casing and bear against lugs pressed up inwardly from the bases of the blocks 22. In the form shown, the engaging surfaces of the blocks 22 are slightly convex, for engaging a flat-faced wedge member while allowing slight variation in the vertical alignment of the door ; alternatively, the wedge may have convex faces and the blocks flat faces. The blocks 22 can be pressed back far enough to clear the lugs 20 for removal when required, but such movement does not occur in normal use. The bases of the blocks can be sprung away from the other parts to compensate for variations in the size of the casing 16.
Patent GB-1518418-A (GB)
Title: Method and kit for solid phase immunological assay of antigens
IPC: G01N33/544
Filed: 1976-06-28
Abstract: 1518418 Solid phase immunological assay NEW ENGLAND NUCLEAR CORP 28 June 1976 [28 Aug 1975] 26838/76 Heading G1B A method for the solid phase immunological assay of an antigen comprises (a) contacting antiantiserum containing anti-antibody with a substrate surface capable of absorbing said anti-antibody to form solid phase anti-antibody bound to said substrate surface, (b) incubating said solid phase antiantibody while bound to said substrate with antiserum containing antibody to form solid phase anti-antibody, (c) incubating said solid phase antibody, while bound to said solid phase antiantibody and said substrate, with a solution containing antigen specific to said antibody and the same antigen labelled with a tracer, to form solid phase antigen and solid phase tracer-labelled antigen bound to said solid phase antibody and (d) measuring the tracer activity either of said solid phase antibody - anti-antibody substrate or of the remaining solution. The substrate is suitably a polymer, preferably a polypropylene or polystyrene tube or a dipstick. The immunological assay is suitably a radioimmunological assay using a radioactive substance, e.g. <SP>125</SP> I as a tracer.
Patent GB-673792-A (GB)
Title: Craft-navigation indicating and control apparatus
IPC: G05D1/02
Filed: 1950-11-03
Abstract: 673,792. Magnetic amplifiers. SPERRY CORPORATION. Nov. 3, 1950 [Dec. 7, 1949], No. 26865/50. Class 40 (iv). [Also in Groups XXXV, XXXVIII and XL (c)] A servo amplifier in an automatic system for controlling a ship's steering (see Group XXXV) comprises a differential magnetic amplifier having two D.C. control windings 50 and 60 and two D.C. output circuits 51-58 and 61-68 whose respective rectifiers 53-56 and 63-66 are so connected that the currents in coils 51, 52 and 61, 62 are in opposition, the two output coils 56 and 57 constituting the windings of a differential relay 70 so that the relative amplitude of the currents in coils 57 and 67 and hence the direction of operation of relay 70 depends upon the direction of the resultant current in control windings 50 and 60.
Patent GB-640097-A (GB)
Title: Improvements in snap-action electric switches
Inventor: DALZIEL THOMAS
IPC: H01H13/36
Filed: 1947-10-07
Abstract: 640,097. Thermal switches; press-button retractive switches. SIMPLEX ELECTRIC CO., Ltd. Oct. 7, 1947, No. 26880. [Class 38(v)] [Also in Group XXXII] The blade-spring of a dead-centre, snapaction switch comprises a flexible plate 15 and an S-shaped spring 16 secured together at each end, so that a fixed contact 23 and a contact 21 carried by the composite spring are normally in engagement. Depression of a button 39 acting on a bend 37 of the spring 16, initially urges the contacts together and then causes the spring 16 to snap over-centre against an adjustable stop 40, the contacts reclosing when the button is released. The stop 40 may be replaced by a second fixed contact. The spring 16 and plate 15 may take several forms (Figs. 4 to 9, not shown), (see Group XXXII). The fixed contact may be screwed into the upper limb of a terminal strip bent into " U " form, the lower limb having a clearance hole through which the contact passes. The terminal strip may also be in two parts, the contact being mounted on one part and the electrical connection being made to the other, resilient, part. The spring may be of bimetallic material or acted upon by a bimetal strip.
Patent GB-318527-A (GB)
Title: Multi-wall bag and method of making the same
IPC: B65D30/08
Filed: 1929-09-04
Abstract: 318,527. St. Regis Paper Co., (Assignees of Menke, E. W.). Sept. 4, 1928, [Convention date]. Paper bags.-A multi-ply bag comprises a sheet having its two edges free from each other but joined, one to a ply inside the sheet and the other to a ply outside the sheet, and an inner sheet having one free edge and the other connected to the next outer ply. In forming a bag comprising sheets 11 - - 15, a strip of adhesive 16 is applied to one edge of each of the overlapping sheets 12 - - 15 and an additional strip 17 is applied to the sheet 15. The sheets are folded over with the sheet 11 innermost, the sides carrying the adhesive being folded first, and the left hand edge of the sheet 11 is secured to the gummed edge of the sheet 12 and so on until in effect a spiral tube is formed, the adhesive strip 17 receiving the outermost edge of the outside sheet. A layer 19 of paraffin is applied to the edge of the outside sheet to make the joint waterproof and when the ends of the tube have' been folded over in the usual manner, and gummed between the sheets, a further layer of paraffin is applied to the exposed edges of the sheets. The sheets are assembled with a small clearance between them to allow them to adjust themselves to the load when filled and the outside sheet may have its edge doubled over before being secured to the next sheet to make it able to vield. In a modification, the outer sheet or sheets form a tube with a spiral formed of the inner sheets inside it. The various layers of the bag may be formed of different materials Specification 251,016 is referred to.
Patent GB-826255-A (GB)
Title: Improvements in or relating to mobile appliances for treating floors, floor coverings and the like
IPC: A47L11/30
Filed: 1956-09-03
Abstract: 826,255. Cleaning floors and floor coverings. TAYLOR, F. W. P. Dec. 3, 1957 [Sept. 3, 1956], No. 26924/56. Class 138(1). An apparatus for treating floors, floor coverings, or textile fabrics comprising a mobile frame carrying a motor or motors (27), a movably mounted floot-treating element or elements (e.g. scrubber(s)) to perform a to-andfro or orbital motion or a circular rotary motion about an axis of the element upon the surface to be treated, and a driving connection between the motor(s) and the floor-treating element(s) (31), and also comprising a container (53) for clean liquid for treating the surface. Supply ducts from this container to the treating element(s), a waste container (54), a fan or fans (47) for removing by suction through a duct or ducts (35, 49, 51, 58) the used liquid, dirt, &c., from the treated surface to the waste container, is characterised by the inlet to the suction duct (s) (35) being an elongated slot (40) which circumscribes or substantially so the floor-treating element(s) (31) and lies in or substantially in the plane of the floor-treating surface of the floortreating element(s). As shown the brush 31 is rotated via a flexible coupling 32 and worm and gear drive by the electric motor 27 which also operates the suction-fan 47. The brush is perforated as for example disclosed in Specification 451,704 and cleaning or liquid is led thereto from tank 53 by ducts (not shown) and channel 34. The elongated suction duct 35 which at least three-quarters encircles the brush element is made in three sections 36 each carried on pivoted links 43 to allow for floor unevenness and interconnected 2 flexible hoses 51. The sides of the inlet duct 40 comprise flexible lips 39 which are adjustable up and down in slots 37 to compensate for wear. Two wheels 63 which may be manually lowered to the floor for easy removal of the apparatus are mounted at the back of the casing and are normally held raised by springs 27. If desired a third adjustable-wheel may be added at the front centre and arranged so that the floor &c., may be treated with the device resting on both the brushes and the wheels. Furthermore provision may be made for connecting to a remote source of suction by e.g. a flexible hose, and also to a remote supply of detergent &c. The fan 47 may have a separate motor. Suction-fan (and its own motor if supplied), liquid and waste tanks, suction-elements 36 and discs 49, 51, 58 are all quickly detachable from the main casing 12, so that without them the appliance may be used as a floor polisher. Specifications 399,174, 470,192, 486,499, 486,500 and 685,715 also are referred to.
Patent GB-731623-A (GB)
Title: Improvements relating to the mounting of electric busbars and the like
Inventor: LEWIS PETER JAMES
IPC: H02G5/02
Filed: 1952-10-27
Abstract: 731,623. Supporting conductors. METROPOLITAN - VICKERS ELECTRICAL CO., Ltd. Oct. 27, 1953 [Oct. 27, 1952], No. 26973/52. Class 36. A rigid conductor 4 of substantial crosssection is mounted on a support insulator 3 by means of a member attached to the conductor so as to permit relative movement of the member along the conductor, the member being secured to the insulator by resilient means which permit relative movement transversely to the length of the conductor between said member and the insulator. A circular metal plate 1 bolted to the top cap 3<1> of insulator 3 is secured in parallel spaced relationship to a circular plate 5 of larger diameter by resilient devices 6. Plate 5 carries a bracket 7 formed at each side with a lug 8 having a through hole parallel to the conductor 4 which accommodates a pin 10 with a sliding fit. A clamp is secured to the conductor at each end of the bracket, each clamp comprising semi-annular members 11a, 11b which are drawn together by bolts 12, and each member 11a having lugs 14 formed with through holes to receive the ends of pins 10 which are retained in position by nuts 15. The clamps are spaced from the ends of bracket 7 to permit limited longitudinal movement of the clamped conductor relative to the plate 5. The resilient devices 6 may each comprise a cylindrical rubber block bonded between two discs, each provided with a fixing stud 18 by means of which the devices are bolted to plates 1 and 5, thus permitting limited movement of the plates towards and away from each other. The plate 5 may have a depending flange 22 to protect the devices 6.
Patent GB-807834-A (GB)
Title: Improvements in high-pressure gun for grease and oil
IPC: F16N3/12
Filed: 1957-08-27
Abstract: 807,834. Reciprocating pumps. WAGNER, J. [trading as VERTRIEBSGESELLSCHAFT ING WAGNER]. Aug. 27, 1957, No. 27015/57. Class 102(1). The piston 18 controls an inlet port 25 from a grease reservoir 5 including a spring loaded piston 27, and is reciprocated by a lever 14 pivoted at 15 and carrying a bearing 13 engaged by a cam 10 rotatable with a gear 9 on a fixed shaft 11. The gear 9 is driven by a gear 8 on the shaft 7 of an electric motor. The piston 18 is returned by a spring 19. The outlet valve 22 is adjustably loaded by a spring 24. A relief valve 31 has an axial bo recommunicating with the pump outlet and the delivery pipe 37 and a head 31<SP>1</SP> which is seated by means of springs 33 which are adjustably loaded by a nut 6<SP>1</SP> which has outlets 35 for the excess liquid when the valve 31 opens. The reservoir 5 may be replaced by an oil reservoir including a dip tube.
Patent GB-1508445-A (GB)
Title: Apparatus for providing a controlled supply of powdered or granular material
IPC: G01G11/08
Filed: 1975-06-25
Abstract: 1508445 Automatic feed weigher MITSUI MINING & SMELTING CO Ltd 25 June 1975 [25 June 1974] 27030/75 Heading G1W An automatic feed weigher for producing a predetermined flow of granular material e.g. zinc dust for use in purifying zinc sulphate electrolyte for use in the electrolytic production of zinc, comprises a belt conveyer 13 mounted on a frame 10 pivotally mounted on a support 20, load sensing means, a hopper 1 and feeding means 9 for feeding material-from the hopper to the conveyer and controlled by electrical signals from the load sensing means 24. Hopper 1 includes a vibrator 5 to prevent bridging and feeds a shoot 6 which discharges on to a vibratory feed 9. The load sensing means 24, Fig. 2, may include strain gauges connected in a Wheatstone bridge, Fig. 5 (not shown), or a coil spring 52 in combination with a differential transformer 49, Fig. 8. The instantaneous load on the conveyer may be displayed, recorded and integrated, Fig. 10 (not shown).
Patent GB-831581-A (GB)
Title: Improved olefin polymerization process
IPC: C08F2/00
Filed: 1957-08-28
Abstract: Polymers of 1-olefins are made by polymerizing the olefin in the presence of a solid catalyst in a liquid hydrocarbon at a temperature, e.g. not lower than 250 DEG  F., such that a substantial part of the polymer formed is soluble in the hydrocarbon, controlling the polymer concentration so as not to exceed 15% by weight of the hydrocarbon, cooling the solution to below the precipitation temperature of the formed polymer, adding additional monomeric material and continuing the polymerization at such a temperature, e.g. 100 DEG  to 230 DEG  F., that the polymer formed is insoluble in the hydrocarbon.  The process may be effected batchwise or continuously, e.g. by effecting the higher temperature polymerization in one reactor passing the reaction mixture through a cooler wherein polymer is removed and continuing the polymerization at a lower temperature in a second reactor to which additional monomer is charged.  The preferred catalyst comprises chromium oxide, including a substantial amount of hexavalent chromium, in association with at least one oxide selected from silica, alumina, zirconia or thoria. The olefin may be ethylene alone or in conjunction with propylene, 1-butene, 1-pentene, 1-hexene, 1-octene, 4-methyl-1-pentene, 4-methyl-1-hexene, 5-ethyl-1-hexene, 6-methyl-1-heptene, 4-ethyl-1-hexene, or butadiene.  Hydrocarbon diluents mentioned are propane, isobutane, n-pentane, isopentane, isooctane, cyclohexane, or methylcyclohexane.  Specifications 790,195 and 804,641 are referred to.
Patent GB-630107-A (GB)
Title: Improvements relating to turret lathes and like machine tools
IPC: B23Q16/06
Filed: 1945-03-28
Abstract: 630,107. Turret lathes. POTTER & JOHNSTON MACHINE CO. March 28, 1945, No. 27188/47. Convention date, May 26, 1944. Divided out of 630,068. [Class 83 (iii)] A turret lathe or like machine tool having an indexible turret carried on a slide has means for locking and unlocking the turret in indexed positions including a fixed abutment disposed adjacent to and spaced from the turret, a lock member movable into position between the abutment and an opposing locking face on the turret, a driven cam disc having an operative connection with the slide to reciprocate it and means on it for operating the lock member, for indexing the turret, and for causing the lock member to lock the turret in the indexed position at a predetermined position of the slide. The turret 165 is carried in a circular recess at the end of the saddle and rests on a face 168 which is bevelled and overlapped by the turret at h, i to exclude cuttings. The turret is allowed a small amount of lateral play so that it may be clamped in its indexed positions by a wedge member 175 operating between an abutment member 163 on the turret slide and chamfered faces 179 on the turret, forcing it to the left against shaped locating segments 170. An indexing ring 178 with slots 176 is secured to the underside of the turret so that the slots may be engaged in the manner of a Geneva mechanism by a pin 180 on the cam 135. This cam is mounted at the top end of a vertical spindle journalled in the machine bed and the lower end of the spindle is driven by worm gearing from the main feed shaft (not shown). A heart-shaped cam groove 135a is provided in the cam and is engaged by a pin 147, Figs. 7 and 8, which is journalled in a detachable bearing member 163 bolted to the turret saddle, A cam-block 182, secured also to the cam 135 is adapted to operate a roller 183 carried by a lever 184 which is pivoted at one end and is connected at its opposite end with the locking and clamping latch 175. As the cam 135 rotates it thus effects the feed and return of the turret. slide, withdrawal of the wedge member or clamping latch 175 against the bias of spring (not shown) operating through a cable 195, and indexing of the turret when the saddle is in its withdrawn position.
Patent GB-279638-A (GB)
Title: Improvements in electric protective apparatus
IPC: H02H3/30
Filed: 1926-11-01
Abstract: 279,638. British Thomson-Houston Co., Ltd., Lejeune, S. M., and Petch, H. S. Nov. 1, 1926. Cut - out arrangements.-A circuit 11. which mav be a feeder, interconnector, transformer, &c. is protected by current transformers 12, 13, the secondaries of which are connected in a series circuit 14, 15. Across equipotential points E, F is connected a circuit 16 including protective relays 17, 18. In order to avoid capacity currents between the circuit 16 and the circuit 14, 15 the ends G, H of the circuit 16 are raised to a potential equal to half that across either transformer 12, 13. This is effected by means of transformers 25, 26, the primaries of which are shunted across resistances in the circuit 14, 15 and the secondaries being in series with the circuit 16. The system is also applied to a three phase circuit to afford protection against both earth and interphase faults, " biassing transformers " as described in Specifications 193,434 and 216,254, or vibrating relays as described in Specification 257,337, being used.