baber/WOPTO huggingface dataset:
Patent GB-499706-A (GB)
Title: Improvements relating to sound reproducers and recorders
IPC: H04R11/08
Filed: 1938-05-11
Abstract: 499,706. Gramophone sound boxes; recorders. MACKIE, D. M., and COLLARO, C. May 11, 1938, No. 14109. [Class 40 (ii)] [Also in Group XXXIX] A sound reproducer or recorder is provided with an armature or equivalent member 7, Figs. 3 and 4, mounted to oscillate about an axis in close proximity to a fulcrum member 5 rigidly secured to the main body and arranged to engage a needle 1 between the ends thereof, the armature being arranged to engage the needle only at the end thereof remote from its playing or cutting point to be oscillated with the needle as the latter oscillates about its fulcrum. In the pick-up shown, the armature 7 has trunnions 8 of double convex crosssection in rubber sleeves 10 clamped in recesses 20 in an iron plate 15 by the fulcrum member 5, which is secured to the plate 15 by screws 17. The armature is hollow and the fulcrum member has a pear-shaped orifice 4 with knife edges. The needle 1 is inserted through the orifice into the armature ; and the weight of the pick-up and the drag of the record causes the middle of the needle to be gripped by the narrower end of the orifice 4, and the inner end of the needle to be pressed into engagement with the wall of the hole 6 in the armature. This hole may be given a V-shaped crosssection to ensure a good grip of the needle. Additional and alternative means mentioned for holding and gripping the needle are ; a small wad of cotton wool 35 saturated with petroleum jelly ; at the inner end of the hole 6 an inwardly projecting lip 10a on the rear rubber sleeve 10 ; a conical recess at the inner end of the hole 6, the needle having a corresponding pointed inner end; and magnetic attraction of the needle to the fulcrum member which for this purpose may be magnetically connected at one end to the magnetic circuit of the pick-up, or may be so connected at both ends and provided with a gap across the orifice 4. The armature 7 is surrounded by the usual coil 30. The polepieces 22 are fastened to the plate 15 with interposed non- magnetic liners 24 by brass screws 26. The magnetic field is provided by a U-shaped permanent magnet 31, Fig. 1, secured to the main casing 3 and in, contact with the polepieces 22. The casing 3 is closed by a cover secured by a screw which screws into a boss 34, and the pick-up is rotatably mounted on an arm 33. In the case of a crystal pick-up, the pivoted member 7 is arranged to drive the crystal; and in the case of a mechanical sound box, the member 7 is connected to the diaphragm.
Patent GB-400315-A (GB)
Title: Improvements in devices for locking the road wheels of vehicles
IPC: B62B5/04
Filed: 1932-05-18
Abstract: 400,315. Locking vehicle wheels. HEWITT, C. F., 598, Green Lanes, Harringay, London. May 18, 1932, No. 14128. [Class 103 (i).] The wheels of perambulators and other vehicles are adapted to be locked against rotation by the engagement with a toothed wheel 1 secured to the wheel of a pin 3 on an arm 4 pivoted to a bracket 5 fixed to the axle. The arm 4 is moved to the engaged position against the action of a spring 6 by a hand lever 9 pivoted at 10 and provided with a detent 12 for engagement with a rack 11.
Patent GB-900009-A (GB)
Title: Melt spinning process
IPC: D01D5/084
Filed: 1961-04-19
Abstract: In melt-spinning fibres of a synthetic organic polymer the fibre is cooled from the temperature at the spinneret face in contact with a gaseous medium heated to maintain temperatures measured in the medium adjacent to the fibre which decrease in the direction of fibre travel to 100 DEG C. under such conditions that the temperature at the spinneret face minus any such temperature adjacent to the fibre is within the limits of 10x-30 and x+20, where x is the distance of travel in yards times 104 divided by the fibre speed in yards per second and divided by the denier per fibre.  In an example, a polyethylene terephthalate is melt-spun at a spinneret face temperature of 285 DEG C. and the filaments thus formed (23 denier per filament) are wound up at 500 yards per minute.  Cooling of the filaments is retarded under controlled temperature conditions by means of a muffle furnace, 7 inches high, comprising exposed electrical resistance wires coiled on the inner surface of a ceramic cylinder having an open passageway of about 3 inches diameter centred below the spinneret. The top of the furnace is sealed against the bottom of the spinning head.  In a series of four different conditions of heating in the furnace, all within the specified limits, the temperatures at distances of 1/2 inch and 7,5 inches from the spinneret face are 240 DEG  and 120 DEG C., 274 DEG  and 132 DEG C., 286 DEG  and 148 DEG C., and 300 DEG  and 150 DEG C., respectively.  The samples of yarn thus obtained are drawn over a plate heated to 185 DEG C. located between a preheating roll at 90 DEG C. and a cold drawing roll.  In other examples, a linear polypropylene and a polyhexamethylene adipamide are melt-spun in a similar manner.  Other polymers to which the invention may be applied are listed.  After the filaments have been cooled to 100 DEG C. under the conditions specified, their further cooling to normal temperatures may be effected slowly or rapidly, but it is preferred to continue cooling under the specified conditions to 50 DEG C.  The fibres obtained have improved uniformity, tenacity, flex life and maximum draw ratio.  Specifications 461,236, 578,079 and U.S.A. Specifications 2,071,250, 2,130,523, 2,130,948, 2,190,770, 2,273,105, 2,296,202 and Belgian Specification 572,577 are referred to.
Patent GB-981307-A (GB)
Title: An electrical socket assembly
IPC: H01R33/76
Filed: 1962-04-12
Abstract: 981,307. Holders for thermionic valves. UNITED-CARR Inc. April 12, 1962 [Aug. 17, 1961], No. 14213/62. Heading H2E. A socket for a sub-miniature metal-cased thermionic valve consists of an insulating body 16 supported in a metal panel 10 by mounting ring 28 to which is fixed a heat conducting member 54 which grips the metal case of the valve and conducts the heat to the panel 10. Mounting ring 28 has tags 36 which grip the body 16 and tags 46 which can be inserted in slots 50, 52 in the panel 10 and bent over to fasten the socket in position and also has spring grounding elements 74, 76 to grip the indexing ears 66, 68 of the valve. The heatconducting member 54 consists of an arcuateshaped washer fixed at one edge to the mounting ring and with the inner edge divided into resilient fingers which grip the skirt 64 of the valve 60. In a modification, Figs. 6 and 7 (not shown), the heat-conducting element 80 also acts as the mounting ring and surrounds the insulating body 16.
Patent GB-1510397-A (GB)
Title: Effluent gas treatment process
IPC: B01D53/56
Filed: 1977-03-09
Abstract: 1510397 Removal of NO x , from gaseous effluents IMPERIAL CHEMICAL INDUSTRIES Ltd 9 March 1977 [8 April 1976] 14361/76 Heading C1A Nitrogen oxides (NO) are removed from an effluent gas containing more than 50 vol. per cent N 2  and up to 1 vol. per cent NO x  by contacting the gas with at least 50 parts by wt. per part by wt. of NO x  (calc. as NO 2 ) of a distillation residue (KA still residue) obtained by oxidizing cyclohexane to cyclohexanol and cyclohexanone, the residue containing not more than 5 wt. per cent free cyclohexanol. The effluent gas preferably contains sufficient O 2  to oxidize NO to NO 2 , if not, air may be added. The contact temperature of the effluent with the KA residue may be 40-100‹C The process is applicable in a plant for making adipic acid from cyclohexane, in which effluent from cyclohexanone oxidation and nitric acid formation are treated with the KA distillation residue.
Patent GB-351661-A (GB)
Title: Improvements in or relating to flat-platen typewriters and like machines
IPC: B41J15/20
Filed: 1930-05-09
Abstract: 351,661. Typewriters &c. WADE, H., 111, Hatton Garden, London.-(United Autographic Register Co. ; 2316, West 43rd Street, Chicago, U.S.A.) May 9, 1930, No. 14381. [Class 100 (iv).] Web feeding and guiding arrangements ; ink-ribbon mechanism.-In a flat-platen typewriter or like machine provided with supports and tensioning- means for paper webs and carbon webs, the supports for the carbon webs are arranged between rearward extensions of the platen frame, and the tensioning- means is arranged to retract slightly the carbon webs after they have been drawn forwards. In the arrangement shown in Figs. 2, 4, and 5, a frame 23, detachably mounted in arms extending from the platen frame A<2>, carries a paper roll 30, spring-braked carbon rolls 28, and guides 25 and snubbing-bars 24 for the paper webs 30a and carbon webs 28a. The guides are mounted in curved slots 25a and are retracted by springs 26. To facilitate threading of the webs, the guides can be drawn forwards by means of'slides 44, Fig. 2, having lugs 44a engaging the guides. The slides are mounted on studs 45 on a frame 23 and are drawn forwards by means of a rod 46 passing through slots 46a, 46b in the slides and frame, the slots 46b having recesses for holding the slides in forward position. The platen B is depressed to release the webs by means of pedal-operated linkage B<1>. A clamp 18 having a tearing-edge 18b co-operates with the front plate 16 of the platen frame and is secured to rocking arms 19 having rollers 19a engaging the platen, the clamp being raised when the platen is depressed. The paper and carbon webs are led over alternate guides and on to the platen, the paper-webs being engaged by hooks 16a and tensioned by the guides, and the front edges of the carbon webs being slightly behind the hooks. When a form has been typed, the paper webs are drawn forwards, the carbon webs being held stationary by the rolls 28. The carbon webs are periodically drawn forwards and torn off with the paper webs. The guides are then permitted to retract slightly the paper and carbon webs, and the paper webs are again drawn forwards, and engaged by the hooks. Alternatively, the paper webs may be grasped to permit retraction of the carbon webs only. The front plate 16 may have a slotted part 16c and a depending member 16d for guiding a loose tally-sheet 41 when it is drawn off the platen. The bottom carbon web may be connected, for instance by clips 43, to the part 16c. The clamp 18 may be dispensed with, depending hooks for engaging the paper webs being arranged under the front plate.
Patent GB-1494172-A (GB)
Title: Adjustment of the start valve-actuating push rod in a self-start pneumatic tool
IPC: B25B21/00
Filed: 1976-04-08
Abstract: 1494172 Fastener driving tools DESOUTTER BROS Ltd 8 April 1976 14418/76 Heading B3N The push-rod 10 for opening the motoractuating valve (not shown) of a pneumatic threaded fastener driving tool when the tool bit (not shown) in holder 3 is pressed against the work, engages an adjustable abutment comprising a bearing bush 7 for input shaft 4 engaging a shoulder 8 or holder 3, a self-locking threaded member 11 screwed into a bore 13 in bush 7 and a cylindrical roller 12 closely fitted but with a surface film of oil in a smooth part of the bore. Member 11 may be a grub screw with a self locking nylon insert 15. The adjustable abutment is used to take up manufacturing tolerances of the rod and machine parts.
Patent GB-623930-A (GB)
Title: Improvements in or relating to variable speed gear mechanisms
IPC: F16H29/04
Filed: 1947-05-31
Abstract: 623,930. Variable-speed ratchet gearing ; variablethrow cranks. BURNS, J. S., and MANSON, R. K. May 31, 1947, No. 14487. [Classes 80 (ii) and 80 (iii)] In a variable-speed ratchet gear of the kind in which a variable-throw crank co-acts with arms each on a rockshaft connected by a one-way clutch to an output shaft, the crank pin 1 is rigid with a crosshead 2 sliding radially across the open end of a cylindrical driving member 3 under the action of a piston 7 sliding axially in the member 3 and engaging an inwardly-directed spigot 5 on the crosshead through a dovetail tongue and groove connection on the complementary oblique faces of the spigot and piston. Manual control of the crank throw is effected through an operating arm 12 entraining by a yoke 11 a sleeve 10 connected to the piston 7 by pins 9 passing through slots in the member 3.
Patent GB-1496472-A (GB)
Title: Method and apparatus for the directional characteristic of an echo sounding receiver
IPC: G01S7/02
Filed: 1976-04-09
Abstract: 1496472 Sonar receiving circuits FRIED KRUPP GmbH 9 April 1976 [12 April 1975] 14605/76 Heading G1G The directional characteristic of a coplanar array of under water sonar receivers 1-4 cooperating with a sonar transmitter (not shown) of constant frequency f is improved by deriving at 5-8 squarewave signals of frequency f from any echoes received, deriving therefrom at 11-14 squarewave signals of frequency f/2 and at 15-18 squarewave signals of frequency 2f, adding at 9, 19, 21 the respective signals of frequency f, f/2 and 2f, filtering 10, 20, 22, rectifying 25, 27 multiplying 26, 27, rectifying 30 and multiplying 29. The final signal S 3  has a directional characteristic having a narrower central lobe and greatly reduced side lobes, Fig. 4 (not shown).
Patent GB-1283181-A (GB)
Title: Retrievable subsurface apparatus
IPC: E21B33/129
Filed: 1971-05-12
Abstract: 1283181 Wells &c BAKER OIL TOOLS Inc 12 May 1971 [20 July 1970] 14607/71 Heading E1F A well tool comprises a body, normally retracted means on the body, means for expanding the normally retracted means laterally into contact with the wall of the well bore, a coupling releasably securing the body to the expanding means for transferring non-rotary longitudinal movement of the body to the expanding means to expand laterally the normally retracted means, means for retaining the coupling in its coupled position, and means for shifting the retaining means to release the coupling to permit retraction of the normally retracted means. A packer body 10 comprises a tube 11 and head 12. A setting sleeve 14 is initially secured to the head by a screw 15 and is attached to a ring 16 abutting packing 17. A sleeve 19 depends from the ring 16 and has a flange 20 underlying a ring 21 abutting the packing. The ring 21 carries a sleeve 22 supporting an expander 25 from which depend slips 27. The slips 27 supporting a ring 34 in turn supporting slips 37 and an expander 40. The expander 40 carries sleeves 46, 48, 49, 52, the sleeve 52 being releasably coupled to the tube 11 of the body by spring arms 54 on the sleeve 52, engaging a groove 56 in the tube and being held in the groove by a retainer ring 57 fixed to the tube by shear pins 59. The packer is run into the well on a gas operated setting tool C, a sleeve 105 on the tool urging the sleeve 14 downwardly and a tool mandrel 85 pulling the body upwardly. Downward movement of the sleeve 14 is transmitted through packing 17, ring 21 and sleeve 22 to the expander 25 and upward movement of the body is transmitted through the arms 54, and sleeves 52, 49, 48, 46 to the expander 40 to set the slips. Further downward movement of the sleeve 14 acts through the abutment 16 to set the packing. The packing and slips are retained set by ratchet devices 70, 76 respectively. When the setting forces exerted by the tool are large enough, a tool portion 91 ruptures to release the tool from the packer, a tool member 92 falling to permit tool dogs 95 to release from the head 12. A retrieving tool comprises a fitting (not shown) and a mandrel 120 (Fig. 7d) reciprocable in the fitting and slidably carrying spring fingers 133. After the fitting has been latched to the head, and the mandrel has been lowered to the position shown chain dotted, the mandrel is raised to release the packer. A sleeve 123 on the mandrel raises the fingers which lift sleeves 60, 61 on the packer so that keys 62 on the sleeve 61, lift the ring 57, shear the pins 59, and free the arms 54 from the body. The ratchet devices then permit upward movement of the body relative to the packing, slips and expands, and a flange 66 on the body lifts the sleeve 19 to release the packing. Further upward movement of the body causes the flange 20 on the sleeve 19 to lift the ring 21, sleeve 22 and expander 25 to retract the slips 27, 37. Sometimes the slips 37 retract as the arms are freed.
Patent GB-496228-A (GB)
Title: Improvements in or relating to means for automatically recording the speed of vehicles
IPC: G01P1/12
Filed: 1937-05-26
Abstract: 496,228. Speed indicating and recording apparatus. ALFANI, G. May 26, 1937, No. 14660. Convention date, Feb. 26. [Classes 106 (iii) and 106 (iv)] In a speed-recording device wherein a tape h driven from the speedometer drive a is marked or perforated at regular intervals of time by a stylus z, the pivoted lever y carrying the stylus is actuated by spring-loaded timing mechanism energized by the speedometer drive. This mechanism comprises two pivoted pawl levers r, s which are alternately lifted by a pin-wheel q driven from the worm b, the pawls being alternately restored by the tensioned springs w so as to drive a ratchet wheel v which drives a cam x<1> for lifting the lever y, a regulator 2 of the air vane type being provided to maintain constant speed for the rotating cam x<1>. The tape h is driven by friction rollers f, g and is wound from a spool i on to a coaxial spool k, the two spools being connected by a friction drive l, m. The spindle a may also drive a centrifugal governor 4 to lift different coloured transparencies 7 over an illuminated slit 6 to indicate different speeds.
Patent GB-561324-A (GB)
Title: Improved low temperature polymerisation process and apparatus therefor
IPC: C08F10/00
Filed: 1941-11-14
Abstract: In a low-temperature catalytic process for the polymerization of olefines of the kind wherein the reagent and catalyst are supplied to the reaction vessel in liquid form, the polymer as it is formed is immediately subjected <PICT:0561324/IV/1> <PICT:0561324/IV/2> in a series of closed vessels to a kneading process combined with a movement whereby it is conveyed to an extruder so that unused reactant and diluent refrigerant are not lost but recycled.  As shown in Fig. 2, a frame 2 and covers 4, 5, 6 enclose a series of pairs of "S" type kneader blades 3 rotating in opposite directions.  The discharge openings between the pairs are controlled by adjustable gates 11.  The last kneader ends at a steam-jacketed extruder 15 having screws 17 leading to a discharge outlet.  The reactants are delivered to the first kneader by pipes 28 and unused reactants are volatilized and discharged through a port 21.  Pipes 28 supply boron trifluoride from cylinders of the liquefied gas, liquid ethylene as diluent refrigerant from a storage reservoir and liquid isobutylene from storage drums.  The gases, mainly ethylene, from outlet port 21 are led via a scrubber for the removal of liquids, to a closed container charged with calcium oxide to remove boron trifluoride. Ethylene gas passes from this container to a compressor, is freed from moisture by towers containing calcium chloride and fractionally distilled. The C2 cut is scrubbed with water, dried over calcium chloride, again fractionated, vaporized in a steam-heated flash drum and delivered to storage drums for re-use.  Isobutylene from the refining is fractionated before use.  Instead of supplying the mixed reactants to the kneader, they may be supplied by separate pipes 28. In an alternative form of apparatus, Fig. 7, a container 71 preferably surrounded by a cooling jacket is supplied with the reactants through pipes 73.  Extruder screw 17 agitates the reactants and carries forward the polymer to a steam-jacketed extruder screw 78 which discharges it from the nozzle.  Outlets 74 leading to discharge pipes 75 are provided with reciprocating scrapers 76 to ensure a free passage for the effluent gas and to return all the polymer to the extruder screws.  The olefine may be isobutylene or methyl ethyl ethylene and butadiene, isoprene, cyclopentadiene, and dimethylbutadiene may also be present.  An alternative catalyst is aluminium chloride dissolved in methyl or ethyl chloride or carbon dioxide.  Liquid ethane or propane may be used as refrigerant diluent in place of ethylene.  Specifications 483,453 and 491,739 are referred to.
Patent GB-714116-A (GB)
Title: New or improved contact device for conveying current to electrical switches in motor vehicles
IPC: B60Q1/14
Filed: 1952-06-12
Abstract: 714,116. Supplying current to rotating conductors. PETRI, F. June 12, 1952, [Aug. 14, 1951.] No. 14797/52. Class 38(I). A contact device for conveying current to switches carried by a motor vehicle steering wheel comprises a series of slip rings 5, Fig. I, carried by the underface of the steering wheel hub I and connected by lugs 6 to the switches, co-operating spring-pressed brush contacts 7 being carried by a support 4 attached to the steering column cover 2. Fig. 3 shows a modification wherein the collecting contacts comprise spring rings I I arranged in grooves I I a a in support 4 and contacting the slip rings 5 over a limited area.
Patent GB-582709-A (GB)
Title: Improvements in or relating to secrecy communication systems
IPC: H04K1/02
Filed: 1942-10-23
Abstract: 582.709. Secret transmission. STANDARD TELEPHONES & CABLES, Ltd., CHATTERJEA, P. K., and HOUGHTON, L. W. Oct. 23, 1942, No. 14938. Addition to 580,843. [Class 40 (iv)] [Also in Group XL] In a system for secret transmission in which, as in the arrangement described in the parent Specification, the signal in the line consists of an interrupted masking signal, the periods of interruption being occupied by impulses modulated by the secret message, the sending system comprises means 6 in which the masking and message signals are mixed and a modulator 4 in which impulses are modulated by the mixed signals. The output of this modulator is then added in apparatus 7 to the masking signal and this has the effect of removing that part of the modulation of the impulses that is due to the masking signal. The output from this apparatus thus consists of interrupted masking signal combined with impulses modulated by the message and may be used to modulate the carrier of a radio transmitter 8. Fig. 4 shows a circuit for modulating the pulses which are fed to the grids of a pair of identical valves in parallel. The anode resistance R1 of one valve is coupled to the grid of a further valve V4 and the cathode resistance R4 of the other to the grid of an identical valve V3, the valves having a common anode resistance R5. Normally no signal appears at the output terminals 15, 16 since the impulses from R1 and R4 are equal and of opposite sign. Modulating currents fed to the anode circuit of V2, however, vary the impulse from R4 and cause an output of the form shown in Fig. 2 to appear at terminals 15; 16.
Patent GB-496492-A (GB)
Title: Improvements in and relating to display means
IPC: G09F19/22
Filed: 1937-05-29
Abstract: 496,492. Displaying ; kinematograph apparatus. BLACKISTON, H. E., STEWARD, A. W., and PARSEY, E. J. May 29, 1937, No. 14971. [Class 3 (i)] [Also in Group XX] Display panels 1,which may differ only slightly from one another to give a kinematographic effect, are viewed in succession by a relatively moving observer. The panels are illuminated a strip at a time, the strip sweeping across the panel so that this is seen as a whole by persistence of vision. The strip beam of light may be produced by a source of light 5 carried by a vehicle 6 on which the observer rides and acting in conjunction with slits 4 in a stationary inclined opaque screen 3. The lamps 5 may be located above or below, or both above and below, the level of the observer's eyes. The width and length of each slit 4 may be adjustable, and the slits may be replaced by curved reflectors. The lamps 5 may be elongated parallel to the slits.