baber/WOPTO huggingface dataset:
Patent GB-356482-A (GB)
Abstract: 356,482. Relief valves. LOVEKIN, L. D., Montgomery Avenue, Spring Mill Road, Villa Nova, and FISCHER, W. F., 310, North Eleventh Street, Philadelphia, both in Pennsylvania, U.S.A. Sept. 10, 1930, No. 27076. [Class 135.] Thermally-operated valves.-A valve B is kept normally closed by a spring F acting through a plug D and fusible element E. After a certain amount of fusion has occurred a flange D<2> on the plug rests on a shoulder C<1> on the casing and the pressure of the spring is taken off the valve. In a modified construction the valve is in two portions, the centre being pressed by the spring and the outer annulus contacting with the fusible element bv means of a cylindrical stem. A screw G is provided for adjusting the spring. In another modified form the fusible element is located in a recess in the valve and is pressed by a plunger under the influence of a spring. The fusible element is made readily accessible to the heat of the fluid either by making the valve casing thick or by the provision of a thin wall between it and the fluid. In the construction shown in Fig. 4, a stem 0 depending from a screw plug O<1> bears upon a fusible mass E in a pocket in the valve B.
Patent GB-508032-A (GB)
Title: Improvements in driving gear for automatic lathes
IPC: B23Q5/14
Filed: 1937-12-23
Abstract: 508,032. Lathes; change-speed and reversing gearing. HAHN, H., HAHN, O., and TESSKY, K., (trading as INDEX-WERKE HAHN & KOLB). Dec. 23, 1937, No. 35686. Convention date, Dec. 23, 1936. Addition to 494,837. [Class 83 (iii)] [Also in Group XXIV] The driving gear of the parent Specification is modified by the substitution of an overrunning device y for the friction clutch on the upper countershaft j. The outer parts of the over-running device and the friction clutch on the lower countershaft e, are geared together, and when the friction clutch h is engaged the sprocket wheel k is driven directly, and the outer part of the over-running device and the integral sprocket p are driven in the reverse direction through the gear interconnection between the outside parts of the friction clutch and over-running device; the inside part of the latter rotating idly at a slower rate than the outside part. With the friction clutch disengaged the drive is through the pick-off wheels f, g to the inner part of the over-running device which rotates the outer part and the sprocket p, the sprocket k being rotated in the reverse direction by the geared interconnection between the over-running device and the outside portion of the friction clutch. The sprockets drive the halves of the spindle reversing clutch as explained in connection with the parent Specification.
Patent GB-308769-A (GB)
Title: Improvements in sound amplifying devices
IPC: G10K11/02
Filed: 1928-12-04
Abstract: 308,769. Johnston, W. W., (Assignee of Ross, C. E.). March 28, 1928, [Convention date]. Sound magnifying and directing appliances.-The sound passage of a horn comprises a loop 11 surrounding the mouth, backwardly and upwardly extending portions 13, 14, and a forwardly-directed flared mouth 15, the whole being carved out of solid wood such as pine or spruce, formed in three sections 7, 8, 9 dowelled and glued together. Reference has been directed by the Comptroller to Specifications 213,528, 240,972, 243,968, and 264,602.
Patent GB-1206547-A (GB)
Title: Improvements in electromagnetic indicating or readout devices
Inventor: SILVERMAN ALVIN J
IPC: G09F11/23
Filed: 1968-07-26
Abstract: 1,206,547. Electric motors. VERNITRON CORP. 26 July, 1968 [14 Aug., 1967], No. 35707/68.' Heading H2A. An electromagnetic indicating device comprises a fixed annular array of selectively energizable salient poles, a P.M. rotor mounted centrally of the poles, for rotation . to substantial alignment with an energized pole, an indicia carrying, drum mounted, for rotation with the " rotor, and at least one magnetic structure mounted for rotation with the drum and rotor and being slightly offset with respect to the magnetic axis of the latter, so that the magnetic .structure does not affect the alignment of a rotor and a stator pole when the latter is energized and subsequently de-energized, but when the polarity of the stator pole is reversed the magnetic structure moves into alignment with the stator pole, thus effecting incipient rotation of the rotor which then continues through 180 degrees. The device shown comprises five laminated salient poles 24 each carrying a winding 25, the poles being secured to an end plate 11 (which may .be non- magnetic) in which is journalled a shaft 12 which carries the P.M. rotor 30 and an indiciacarrying drum 35 (which may be non-magnetic). The magnetic structure comprises a plurality of magnetically soft pins 41 mounted in pairs diametrically opposite one another on a non- magnetic ring 40 secured to .the drum 35 so that the pins extend to the vicinity of the poles 24. There may be an even number of stator poles.
Patent GB-1044927-A (GB)
Title: Apparatus for production of photographic copies
Inventor: PERNER JOHANN
IPC: G03B27/32
Filed: 1964-09-01
Abstract: 1,044,927. Copying apparatus. PENTACON DRESDEN KAMERA-UND KINOWERKE, VEB. Sept. 1, 1964, No. 35717/64. Heading G2A. Copying and enlarging apparatus using ultraviolet radiation from a high pressure mercury vapour lamp 1 and silver nucleus copying paper in which the lamp is adjustably mounted transversely to the optical axis of the enlarging system has a two part condenser (containing two or three lenses) permeable to U.V. rays mounted between the lamp 1 and a negative or film 2 (35), a U.V. permeable projection lens 8 positioned so that light from the lamp is focused below the lens 8, and a shutter consisting of a blade 68 (Fig. 5, not shown) movable into and out of the path of the U.V. rays by means of electromagnets 75 acting in conjunction with a device for adjusting and regulating the exposure time. The apparatus is mounted on a vertically adjustable support 11, the head 24 enclosing the apparatus being pivotable about a hinge 23 and having the lamp 1 connected to a bolt 26 which is rotatable so as adjust the position of the lamp. The lamp and condenser may be removed for cleaning. The film 35 is held in removable, vertically adjustable support 34, there being a plate 37 above the support for pulsing the film into position and holding it flat. Operation of a handle (not shown) causes a Bowden (Trade Mark) cable 59 to move a lever 56 and a pin 55 which in turn moves a film transport slide 44 and thus the film 35 is fed into position. At the beginning of this movement the pressure plate 37 is lifted by pins on the slide 44. Movement of the slide is limited by a slot in the support 34. When the handle is moved back, the pins slide back to their original positions allowing the pressure plate to contact the film 35. In order to illuminate a negative about to be duplicated, holes 66 are provided in the support 34, the slide 44 and the support 11 while a mirror 67 is placed under these holes so that the negative is seen therein being illuminated by light from the lamp. So as not to expose the copying material while the lamp is starting, the blade 68 mounted in a holder 70 is swivelled into and out of the path of the U.V. rays and is held in either position by a leaf spring 73. A pin 76 of an arm 14 attached to the blade 68 is attracted to each electromagnet 75 in turn, each being actuated in turn by a levering switch which is actuated by an adjustable timing mechanism (Fig. 12, not shown).
Patent GB-635564-A (GB)
Title: Method and apparatus for rolling screw threads on rods, bolts or the like
IPC: B21H3/04
Filed: 1946-12-03
Abstract: 635,564. Rolling screw threads. LANDIS MACHINE CO. Dec. 3, 1946, No. 35810. Convention date, Jan. 16. [Class 83 (iv)] A method of forming a screw thread on a blank comprises feeding the blank between a pair of rolls rotating at the same speed and in the same direction and having thread-forming serrations extending partially around their peripheries such that there is a substantially equal progressively increasing displacement of the metal of the blank during a partial revolution of the rolls followed by a finishing of the thread during the continued revolution of the rolls. Two co-operating rolls 28, Fig. 1, driven in the same direction each comprise a workfeeding notch 38, a plain cylindrical portion 39 and screw-thread forming portion 40. In the case of the upper roll, the portion 40 begins at the notch 38 with a diameter equal to that of the plain portion 39 and increases in diameter up to a part of substantially uniform diameter terminating approximately 180 degrees from the notch. In the case of the lower roll, the threaded portion begins opposite and ends at the notch. In operation a cylindrical blank 46 is placed in a hopper opening 88 adjacent the upper roll and during the rotation of the roll it falls into the notch 38 and is carried into the position between the rolls, as shown. In this position it is rolled between the portions 40 to form the thread and is then picked up by the notch 38 of the lower roll and carried to a discharge position. A fresh blank may be put into the hopper 88 at each rotation of the roll. As shown in Fig. 2, two sets of rolls may be used to form screw threads at both ends of a blank, the threaded portions of the two sets of rolls being relatively displaced by 180 degrees so that the two ends are not rolled at the same time. This arrangement would allow the two ends to have threaded portions of different diameters or with threads of different pitch and lead. In the rolling position, the work is positioned between guides 48, 52, the blade 48 being adjustable and capable of being set at an angle to form conical work-pieces. In a modified form, Fig. 15, blanks on a shoot 124 are positively fed into the notch of the upper roll by plunger 114 operated from a cam on the roll shaft. The guide 52 is replaced by the member 132 shaped as at 136 so as positively to feed the blanks out of the notch and into rolling position between the two rolls. A member 176 pivoted to a rod 172 which is reciprocated against the action of a spring 168 from a cam 138 on the shaft of the lower roll ejects the finished articles from the rolling position into the notch of the lower roll.
Patent GB-344008-A (GB)
Title: Improvements in and relating to indicating systems
IPC: H02J13/00
Filed: 1929-11-22
Abstract: 344,008. Converting. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Stewart, C. E. ; 4033, Marshall Road, Drexel Hill, Pennsylvania, U.S.A.) Nov. 22, 1929, No. 35835. Convention date, Nov. 22, 1928. [Class 38 (ii).] By varying inductance.-In an electric remote control system the operation of the system is checked by means of oscillation generators at the remote station which are adapted to produce alternating currents of different frequencies causing at the control station the vibration of corresponding reeds in a frequency meter. The generator may be a tuning fork oscillation generator, as shown, in which an energizing coil 33 is connected in shunt with a circuit extending from one side of a battery through the microphone button 35, primary winding of transformer 36 and back to the other side of the battery. A loop circuit 37 maintains vibration in the tuning fork and transmits alternating current to the output 38. In a modification a number of oscillation generators are replaced by a single oscillation generator of the electron discharge type with means for short-circuiting portions of the inductance of the tuned circuit of the generator so as to vary the frequency of the oscillations produced. Specification 307,469, [Class 40 (i), Electric signalling systems &c.], is referred to.
Patent GB-411772-A (GB)
Title: Improvements in or relating to devices for limiting the commencement and the end of the line in typewriters and like machines
IPC: B41J29/50
Filed: 1933-12-20
Abstract: 411,772. Typewriters. AKT.-GES. VORM. SEIDEL & NAUMANN, 19, Hamburgerstrasse, Dresden, Germany. Dec. 20, 1933, No. 35874. Convention date, Jan. 3. [Class 100 (iv).] Margin stops.-In means for adjusting margin stops by moving the carriage, each margin stop is, on being released, automatically moved into engagement with a counter-stop, and can then be adjusted by a direct movement of the carriage. The means for moving each margin stop may consist of a spring-drum, or a spring- tensioned cord or rod, or a piston which in one direction of movement compresses air in a cylinder. In the construction shown in Fig. 1, a rear view, and Fig. 3, margin stops 2, 21 are mounted on a bar 1 which is secured to the carriage 20, 21 and is arranged behind the paper-shelf 24. The margin stop 2 is provided with a spring-drum 11 gearing with teeth 12 on the bar, a spring-urged sliding pawl 4 engaging teeth 6 on the bar, and a block 13 for engaging a counter-stop 17 on the framework. The margin stop 2<1> is provided with similar parts 11<1>, 41, and 13<1>. To permit of adjustment with respect to the carriage-scale, the blocks 13, 13<1> are slidingly mounted on the margin stops and are secured thereto by screws 16, 16<1>. The springs 25, 25<1> of the spring-drums are arranged to be wound when the margin stops are moved away from the counter-stop. Bails 18, 18<1> for engaging arms 4<a>, 4<a1> on the pawls 4, 4<1> are pivoted on the carriage and can be depressed by means of finger-pieces 19, 19<1>. To adjust either margin stop, for instance the margin stop 2, the bail 18 is depressed to release the pawl 4, and the margin stop is thereby permitted to move up to the counter-stop, and can be adjusted on the bar 1 by direct movement of the carriage in either direction. The fingerpieces 19, 19<1> may be arranged to actuate the carriage-releasing lever. Separate bars and separate counter-stops may be provided for the margin stops. The bar 2 and counter-stop 17 may be mounted on the framework and the carriage respectively.
Patent GB-1350134-A (GB)
Title: Electronic timepiece
IPC: G04C3/12
Filed: 1971-08-02
Abstract: 1350134 Electronic watches CITIZEN WATCH CO Ltd 2 Aug 1971 [1 Aug 1970] 36126/71 Heading G3T A battery powered electronic timepiece Fig. 1 (not shown) utilizes as its reference frequency the natural frequency of a first flexion oscillator or vibrator 1 Fig. 2 having Piezo-electric drive and sensing elements 3 and 2, 2' respectively connected in an oscillation maintaining circuit (e.g. as Fig.4 including a phase shifter R21, R25, C24 and amplifier 31) which also produces an output at the reference frequency. This output is fed via a signal converter 11 (e.g. frequency divider, wave shaper not shown) to drive Piezoelectric elements stuck on a second mechanical vibrator such as tuning fork 4. Vibrations of the fork are converted to rotary motion by a pawl 6 and ratchet wheel (not shown) which is coupled by a gear train to time indicating means (not shown). In Fig. 4 the value of R25 or alternatively C24, may be adjusted to compensate for ageing of the tuning fork 4. Both of the vibrators may be as vibrator 1 Fig.2 and mounted parallel to one another on a common support Figs.9 and 10 (not shown). Alternatively the time base vibrator may be as 51, in Fig.12 wherein the fork arms 51a, 51b carry respective balancers 51c and 51d which oscillate in phase opposition and compensate for transient disturbances. The driving vibrator is in the form of a cantilever and comprises an oscillatory mass 52a fixed intermediately to a U-shaped spring 52b the ends of which are attached at 103, 104 to a support 105. Resilient shock-proof mounting of the time base vibrator is described with reference to Fig.13 (not shown).
Patent GB-803407-A (GB)
Title: Improvements in or relating to worm drive hose clips
Inventor: STOTT CLIFFORD
IPC: F16L33/08
Filed: 1956-11-28
Abstract: 803,407. Worm drive clips. UNIPRODUCTS (MANCHESTER), Ltd. Nov. 28, 1956, No. 36331/56. Class 44 A worm drive hose clip comprising a strip 11 to pass around a hose pipe, a housing 10 at one end of strip 11 and a screw, not shown, passing through the housing 10 to engage recesses, not shown, in the other end of strip 11, is characterized in that the strip 11 is attached to the housing 10 by pairs of tongues 13 at each end of the housing 10, Fig. 5, passing through longitudinal slits 12 in strip 11. Between the tongues 13 is a U- or V-shaped portion 14 adapted to lie behind the strip 11, Fig. 2. The tongues 13 are bent over into contact with the strip 11.
Patent GB-1061767-A (GB)
Title: Detection devices and uses thereof
IPC: G01N27/00
Filed: 1963-09-16
Abstract: 1,061,767. Measuring electrically. ESSO RESEARCH & ENGINEERING CO. Sept. 16, 1963 [Oct. 22, 1962; Oct. 24, 1962], No. 36362/63. Heading G1N. In apparatus for detecting a substance in a fluid stream comprising a Piezo-electric or magnetostrictive element coated with a film of a substance which interacts with the substance to be detected, thus varying the frequency or amplitude of oscillation of an oscillator circuit containing the element, of the kind disclosed and claimed in Specification 986,011, the film covers less than 100% of the surface area of the element. Preferably, the part of the element that is coated is an area of maximum oscillation. The thickness of the film does not exceed 100%, preferably 35%, of that of the element. The constructional details disclosed in Specification 986,011 are repeated. In addition, a moisture detector comprising a Piezo-electric crystal coated with a layer of sulphonated polystyrene is described; the coating may be applied in a volatile solvent, or chemically formed on the element, and may be sulphonated by alternate treatment with sulphur trioxide and air. Among the suggested applications of such a detector are the detection of water in fuel, fuel tanks, transformer oil &c., or in solids, e.g. paper, textiles, plastics; use in an automatic shut-off for a clothes drier; and use in a remote humidity gauge for rockets, other planets, &c. In a detector of alcohol in exhaled breath, the breath is dried and passed over a heated platinum wire to produce an aqueous combustion product which is measured by the detector of the invention. A radiosonde device comprises a highly temperaturesensitive crystal in an oscillator circuit for measuring temperature; a moisture-detector of the invention to measure humidity; and a further such detector mounted in a balloon of gas of constant humidity arranged to measure atmospheric pressure. The three measuring units transmit signals to receivers on the ground. The frequency output of a detector-oscillation circuit of the invention may be compared with that of a referenceoscillation circuit in a mixer, the difference frequency being measured; the Piezo-electric or magnetostrictive element in the reference circuit may be uncoated, or may have a coating selected to compensate for the effect on the detector element of a substance which it is not required to detect. To offset the effect of temperaturesensitivity of detection elements, temperature control may be utilised.
Patent GB-757240-A (GB)
Title: Improvements in or relating to polymers of ethylene
IPC: C08F10/00
Filed: 1953-12-31
Abstract: Ethylene is polymerized at between 70 DEG  and 300 DEG  C., and a pressure between 1500 and 10,000 pounds per square inch in the presence of an aromatic diluent and a peroxide catalyst, the ethylene feed being impure and containing less than 90 per cent ethylene, preferably between 45 and 90 per cent ethylene.  Benzene is the preferred diluent and ditertiary butyl peroxide the preferred catalyst, although lauroyl, dimethyl, benzoyl, furoyl and hydrogen peroxides, cumene and tertiary-butyl hydroperoxides, benzoperacid and acetoperacid may also be used.  The polymerization vessel may be made of or lined with enamel, silver, aluminium, tin, stainless steels which contain 18-20 per cent chromium and 8-14 per cent nickel, nickel and manganese alloys containing high proportions of nickel. The polyethylene may be mixed with from 99.9 to 50 per cent by weight of paraffin wax.
Patent GB-819060-A (GB)
Title: Improvements in or relating to tubular containers for getters for electric dischargetubes
IPC: H01J17/24
Filed: 1957-11-22
Abstract: 819,060. Discharge apparatus. PHILIPS ELECTRICAL INDUSTRIES Ltd. Nov. 22, 1957 [Nov. 27, 1956], No. 36484/57. Class 39(1). An electric discharge tube contains a tubular getter container 6, cut from a long tube and bent to form part of a circle or a rectangle. A longitudinal opening 7 is provided on the concave surface of the container to allow the getter material to evaporate therefrom. The curvature of the container ensures that any active material which escapes from the incompletely sealed ends 9 is deposited over the same area of the bulb as that from the opening 7, this area being constant for all tubes of the same type. The container may be welded at points 10 to an electrode support 8. A suggested getter material is an alloy of barium and strontium or aluminium.
Patent GB-1149038-A (GB)
Title: Hydrodealkylation process using impure hydrogen feed
IPC: C01B3/52
Filed: 1966-08-16
Abstract: 1,149,038. Hydrodealkylation ; C 3-6  paraffins. UNIVERSAL OIL PRODUCTS CO. 16 Aug., 1966 [26 Aug.. 1965], No. 36517/66. Heading C5E. A process for hydrodealkylating alkylaromatic hydrocarbons with net consumption of hydrogen is characterized in that a gas supplied from an external source (e.g. a catalytic reformer) and containing hydrogen and paraffins, at least one C 3  or higher paraffin being present, is scrubbed with a liquid aromatic hydrocarbon thereby absorbing a substantial proportion of C 3  and higher paraffins without substantial absorption of methane and ethane, and the resulting gas substantially free of C 4  and higher paraffins is used to supply hydrogen to the hydrodealkylation reaction. Suitable absorbents are benzene, toluene, xylene and Ca+  aromatic fractions, and an effluent from the hydrodealkylation unit may be used. The used aromatic absorbent may be stripped to yield a valuable C 3-6  paraffin fraction. The process is applicable to both thermal and catalytic hydrodealkylation processes.
Patent GB-1260891-A (GB)
Title: Separator of synthetic fibre for lead-acid secondary batteries
Inventor: PICCIOTTO EZRA VITTORIO
IPC: H01M50/42
Filed: 1969-07-21
Abstract: 1,260,891. Envelope separators for batteries. E. V. PICCIOTTO. 21 July, 1969 [6 Sept., 1968 (2)], No. 36605/69. Heading H1B. A separator envelope for a lead-acid battery is made of modacrylic fibres. As shown in Fig. 4 the separator 10a is formed from a tubular weave having vertical cords 23, the open ends of the tubular sheath being transversely joined at 24 and 25 to enclose positive plate 30. The separator is woven from modacrylic filaments which are thermally shrunk and hardened to ensure that the separator fits the plate. In the battery only alternate plates are fitted with a separator.
Patent GB-1139257-A (GB)
Title: Fastener for anchoring a nut
Inventor: PARKIN LESLIE
IPC: F16B37/04
Filed: 1966-08-16
Abstract: 1,139,257. Nuts. CARR FASTENER CO. Ltd. 9 May, 1967 [16 Aug., 1966], No. 36628/66. Heading F2H. A nut anchor comprises a centrally apertured cage-like body 1 having spaced side-walls 3 formed with resilient tongues having outwardly extending end portions 5 and inner projecting portions 6 such that, as the nut 7 is driven axially of the body into a recess, the end portions are forced into the wall of the recess.