baber/WOPTO huggingface dataset:
Patent GB-1501463-A (GB)
Title: Timing rate testers for wrist watches
IPC: G04D7/12
Filed: 1975-03-20
Abstract: 1501463 Testing batteries TIME COMPUTER Inc 20 March 1975 [14 June 1974] 11716/75  Heading G1U [Also in Divisions G3 and H3-H5 ] The time standard frequency of a crystal controlled watch is determined by detecting the crystal oscillation frequency by an antenna mounted in a support 20 for the watch, comparing the frequency thereof with a reference frequency and indicating the comparison results e.g. on a meter 18 calibrated in seconds/month. In testing Fig. 1, the switch 28 is turned to 'calibrate' which connects an internal reference oscillator to the circuit input normally fed from the antenna. The adjusting potentiometer is set to bring the meter 18 to zero. Switch 28 is returned -to 'operate' and the watch is placed face down on the mounting plate 20 which is a metal disc forming the antenna, covered with an insulating coating. The watch band is looped over the clamp 22 which is also metal and helps to shield the antenna from external radiation. The watch is fitted with a cutaway back plate Fig. 11 (not shown) allowing access to a capacitor trimmer in the watch which can then be adjusted to bring the meter indication to within desired limits of accuracy. A facility 29 is provided for testing watch batteries. On insertion of the cell into receptacle 29 and depression thereof Fig. 12 (not shown), the cell voltage is applied to the meter while having a load connected thereacross to simulate working conditions. A band 192 on the meter indicates a satisfactory voltage. Depression of the cell 140 Fig. 5 into the receptacle 29 depresses a brass pin 150 to operate a lever 164 thereby changing the meter terminals from the frequency comparator output to the receptacle leads 160, 166 connected to a metal ring 156 and the pin 150. The pin 150 contacts the centre terminal of the cell 140 and the casing of the cell contacts the metal ring 156. In this test, the cell also has a 100 ohm resistor (not shown) connected across it to simulate the working load of the watch.
Patent GB-498988-A (GB)
Title: Improved hasp fastening for suit cases and the like
IPC: A45C7/00
Filed: 1938-04-19
Abstract: 498,988. Fastenings for suit cases &c. SPIRA, J. April 19, 1938, No. 11721. Convention date, July 16, 1937. [Class 44] A fastening for suit cases &c. which secures the lid even if not fully closed, comprises a tongue 2 pivotally carried by a plate 21 secured to the lid and adapted to enter a slot 16 in a casing 1 secured to the body of the case, where it is held by a catch engaging one or other of a number of ratchet teeth formed on one edge of a plate 7 carried by the tongue. As shown, the untoothed edge is guided by a fixed abutment 8, the toothed edge being engaged by a detent 10 pivoted at 17 and loaded by spring 14. A pivotally and slidably mounted member 20 carries a stud 12 which is normally engaged between the lower end of an inclined extension 18 of detent 10 and the lower end of a member 9 which is also pivoted at 17. The edge of member 9 forms an abutment resiliently held against the edge of tongue 2 by spring 14. Release is effected by raising member 20, stud 12 moving along surface 18 and withdrawing the detent which is held withdrawn by stud 12 snapping into a recess 12<1> in member 9. When tongue 2 is withdrawn, member 9 is released to allow the parts to return to normal position. A keyoperated locking member 13 may be provided to prevent release operation of member 20. Member 2 is biassed to the inclined position shown, Fig. 2, by the inclined lower end 22 of a plate spring 5.
Patent GB-1536140-A (GB)
Title: Ventilators
IPC: F24F7/02
Filed: 1976-04-23
Abstract: 1536140 Operating and locking mechanism for flaps COLT INTERNATIONAL Ltd 23 April 1976 [20 March 1975] 11769/75 Heading E2M A flap 10 is hinged (not shown) to a frame 11 of a ventilator, a linearly extensible actuator e.g. pneumatic piston and cylinder assemblage 12 being connected between the frame 11 and the flap 10 for opening and closing the flap 10. A spring pressed detent 25 holds the flap 10 in its closed position, and extension of the actuator 12 takes up lost motion prior to opening the flap 10 by removing the detent 25 and so releasing the flap 10 for opening. The lost motion connection comprises an arm 16 pivoted to the flap 10 at 18 and to the actuator 12 at 15 so that, on extension of the actuator, the arm 16 is pivoted until the flap is opened by the arm engaging a surface 19 of a bracket 20 fixed to the flap 10. During this lost motion pivoting, the arm 16 pushes the detent 25 against a spring 30 and out of engagement with a bar 32 carried by the bracket 20, so to release the flap 10 for opening. On closing, the bar 32 engages ramp surfaces 37 of the detent 25 to push the detent back as the flap is shut.
Patent GB-117711-A (GB)
IPC: E21D15/02
Abstract: 117,711. Rushton, A., and Bolton, C. H. Aug. 23, 1917. Mine props.-A wooden mine prop A is provided with a renewable foot, peg or block C, which is secured to the lower end of the prop A by means of a s,leeve B, which may be of two diameters as shown in Fig. 1, or of a uniform internal diameter, as shown in Figs. 2 and 3, which is equal to or less than that of the lower end of the prop A, to which it ma.y be secured by the bolt E.
Patent GB-127548-A (GB)
Title: Improvements in or relating to Wheel and Hub or Hub Shell Fitments.
Inventor: KILLEN EDWARD BRICE
IPC: B60B27/00
Filed: 1918-05-17
Abstract: 127,548. Killen, E. B. May 17, 1918. Hubs.-A hub fitting, such as is described in Specification 127,379, by means of which varying types of wheels may be standardized for axle or hub fitment, comprises a sleeve 28 with driving-keys 27 to engage the wheel hub and a flange 29 for attachment, permanently or otherwise, to the existing hub &c. flange 30. The fitting may also have a front flange 33, and a distance-piece 31 may be fitted between the wheel and the flange 29.
Patent GB-716065-A (GB)
Title: Improvements in or relating to transducers
IPC: G01S1/72
Filed: 1952-05-09
Abstract: 716,065. Piezo-electric instruments. BENDIX AVIATION CORPORATION. May 9, 1952 [May 29, 1951], No. 11834/52. Class 40 (4) In an electro-mechanical vibrator having an annular radially vibratile element 13 containing electro-mechanically responsive material, the element has regions 20 of greater mass than the intervening regions equally spaced around its circumference so that the tube diameter necessary for a particular wavelength is reduced. The ceramic crystal vibrator 13 is mounted together with a solid backing member 16 in a mass of sound insulating material 17. The casing 10 has a rubber end, cap 11 and the space between the rubber end cap and the backing member 16 is filled with a fluid such as castor oil having sound propagation characteristics similar to water, so that the radial vibrations of the inner face of the ring are transmitted through the rubber cap. The regions of greater mass may carry additional weights such as solder which may be added to the non-working surface or inserted in recesses to give the ring a constant cross-section, or alternatively the ceramic crystals themselves may be given additional mass in the spaced regions. The reduction in diameter of a tube necessary to give a predetermined wavelength permits the construction of an array of vibrators to produce a beam pattern which was previously unobtainable owing to the fact that the spacing of tube centres necessary to give the desired pattern was less than the diameter of the tubes. Such an array is described with reference to Fig. 7 (not shown).
Patent GB-527754-A (GB)
Title: An improved process for galvanically coating articles of aluminium or aluminium alloys
IPC: C25D5/44
Filed: 1939-04-20
Abstract: 527,754. Surface treatment of aluminium. VEREINIGTE ALUMINIUM-WERKE AKT.-GES. April 20, 1939, No. 11884. Convention date, May 4, 1938. [Class 82 (ii)] [Also in Group XXXVI] Aluminium or an alloy thereof is prepared for electroplating by treatment in a molten salt bath whereby an oxide layer is produced. This is washed in water and loosened up by treatment in an alkaline bath, e.g., of sodium carbonate; the article is then immediately introduced into the plating bath. The molten bath may be of potassium nitrate or of a eutectic mixture of this with sodium or lithium nitrate ; it may contain an oxidizing addition, e.g., of potassium chromate.
Patent GB-715547-A (GB)
Title: New or improved hydro-mechanical means for operating a press, shear, punch, or other machine
Inventor: KEMP ALFRED WILLIAM
IPC: B23D15/14
Filed: 1952-05-10
Abstract: 715,547. Gear pumps. METROPOLITANCAMMELL CARRIAGE & WAGON CO., Ltd. May 7, 1953 [May, 10, 1952], No. 11892/52. Class 110(2) [Also in Groups XXII and XXIX] A gear pump c is driven by a motor b through a mechanical impact unit e which provides a continuous drive so long as the resistance offered by the shaft remains below a predetermined value, after which the coupling slips through a certain angle and applies an impact to the driven shaft as it takes up the drive again. The pump c is connected to a press cylinder by a pipe j which has a by-pass to a tank g controlled by a manually operated valve m. If the by-pass valve m is kept closed the press is subjected to repeated impulses.
Patent GB-310042-A (GB)
Title: Improvements in or relating to electric plugs
IPC: H01R13/70
Filed: 1929-04-17
Abstract: 310,042. Mayrshofer, R. April 21, 1928, [Convention date]. Plug couplings combined with electric switches. The plug member of a wall plug coupling has a switch incorporated therewith. The member may be made in two relatively rotatable parts a, b, the part a carrying wiper springs d that engage the upper surface of the pin contacts c when the two parts are connected together by a central screw and placed in a certain relative position. When the part a is turned the circuit is broken, the springs d then engaging the surface of the insulating material.
Patent GB-915866-A (GB)
Title: Improvements in or relating to control mechanisms for stopping sewing machines
IPC: D05B69/22
Filed: 1959-04-09
Abstract: 915,866. Sewing-machines. PFAFF A.G., G. M. April 9, 1959 [April 10, 1958], No. 11954/59. Class 112. A sewing-machine has stopping mechanism comprising a control member displaceable by a cam which rotates at a lower speed than that of the arm shaft, in order to effect automatic disengagement between the cam-shaft and a drive-shaft. The cam-shaft 1a carries a hand wheel 1 frictionally engageable with a wheel 3 on a drive-shaft 2 connected to a driving motor (not shown) and mounted on a frame 4 rockable about a pivot 5 on the machine frame. A control member 10 is pivoted at 9 to a setting lever 6 pivoted about a fixed pin 8. The member 10 rests against a pin 11 on the lever 6 until the nose 13 on a driven cam disc 12 engages a pin 14 on the control member to swing the latter clockwise about its pivot 9 to abut a pin 15 on the frame 4 to swing the latter anticlockwise to disengage the wheel 3 from the hand wheel. The lever 6 may be raised to a position (Fig. 3, not shown) in which the pin 14 is withdrawn from the path of the nose 13, so that the machine may run continuously. The lever 6 may be operated by a solenoid.
Patent GB-345130-A (GB)
Title: The manufacture of indigoid vat dyestuffs
IPC: C09B7/06
Filed: 1930-04-16
Abstract: Indigoid dyestuffs are obtained by condensing 6-methyl-3-hydroxythionaphthene with an a -derivative of a 5-chlor- or 5-bromisatin.  In examples, 6-methyl-3-hydroxythionaphthene is condensed with the a -chlorides of 5-chlor- and of 5-bromisatin, the chlorides being obtained by treating the chlorbenzene solution of the isatin with phosphorus pentachloride.  The products dye animal and vegetable fibres grey shades and are suitable for printing. 6-Methyl-3-hydroxythionaphthene is obtained by condensing 1-methyl-4-amino-5-mercaptobenzene (prepared by subjecting dehydrothiotoluidine to alkali fusion) with monochloracetic acid, and converting the resulting 1-methyl-4-aminobenzene-5-thioglycollic acid into the hydroxythionaphthene by known methods.
Patent GB-511625-A (GB)
Title: Improvements in snap-action electric switches
IPC: H01H5/18
Filed: 1938-04-22
Abstract: 511,625. Thermal switches; snap - action switches. BURGESS PRODUCTS CO., Ltd., and POOLEY, C. A. April 22, 1938, No. 12184. [Class 38 (v)] A snap-action thermal switch comprises a blade spring 1 anchored at 3 and carrying at its free end a contact 2 movable between fixed contacts 15, 16 by a bimetallic strip 5 stiffened by a rib 7. A snap-action is provided by a leaf spring 10 in compression between an adjustable bearing 12 and a lug 8 on spring 1 in the manner described in Specifications 419,917 and 503,504. In a modification, the strip 5 is dispensed with and the blade 1 is made bimetallic. In either case the switch may be independently operated by a manually operated plunger.
Patent GB-615793-A (GB)
Title: Nitramines and their preparation
Filed: 1945-05-15
Abstract: Terminally di-substituted pentamethylene tetranitramines in which the nitramine groups alternate with the methylene groups are obtained by treating 3 : 7-dinitropentamethylenetetramine with nitric acid.  By carrying out the reaction in the presence of acetic anhydride, with 106 per cent nitric acid, or with 106 per cent nitric acid followed by treatment with alcohol 1 : 9-diacetoxy-1 : 9-dinitroxy and 1 : 9-dialkoxypentamethylene-2 : 4 : 6 : 8 - tetranitramines are obtained respectively.  Detailed examples are given.  The preparation of the starting material is described in Specification 615,419,
Patent GB-513959-A (GB)
Title: Improvements in electric cables and joints therefor
IPC: H01B7/02
Filed: 1938-04-23
Abstract: 513,959. Cables and cable joints. BEAVER, C. J., DAVEY, E. L., and GLOVER & CO., Ltd., W. T. April 23, 1938, No. 12237. [Classes 36 and 38 (i)] A cable or joint is insulated by wrappings of paper pre-impregnated with a material which remains solid or viscous under normal working conditions of the cable or joint, the interstices of the wrapping being filled with gas at atmospheric or higher pressure and the permittivity of the insulation being adjusted from point to point in the radial thickness of the insulation by varying the proportion of the radial dimensions b, Fig. 2, of the gas spaces between adjacent layers of impregnated paper to the thickness t of the paper of the adjacent layers. As shown in Fig. 2, the gas spaces may be formed by embossing depressions 8 in the impregnated paper tapes so as to produce projections 9 which space adjacent layers of tapes. The layers of paper 2, Fig..1, near the conductor 1 may consist of plain paper so that the gas layers are of negligible thickness, whilst the central and outer layers 3, 4 of insulation are of embossed paper, the outer layers being embossed to a greater extent than the central layers ; the permittivity of the insulation thereby decreases outwardly from the conductor in three stages. Fig. 5 shows a joint between two cable ends. The two conductors are joined by a ferrule 17 over which and the tapered ends of the conductor insulation 18 is wrapped plain permanently impregnated paper 16. A bakelised paper tube 19 surrounds the paper wrapping 16, the tube being wrapped with embossed permanently impregnated paper 20 over which is applied a wrapping of varnished silk tape 21. An outer conducting tape may be applied over the joint to relieve from electric stress the compound with which the space 23 within the joint sleeve 22 may be filled. Specification 393,694 is referred to.
Patent GB-1166396-A (GB)
Title: Improvements in Power Plant with Thrust Reverser.
Inventor: GROSS CHARLES HENRY
IPC: F02K1/74
Filed: 1967-03-16
Abstract: 1,166,396. Jet propulsion engine thrust reversal. GENERAL ELECTRIC CO. 16 March, 1967 [9 Sept., 1966], No. 12296/67. Heading B7G. [Also in Division F1] A ducted fan jet propulsion engine 10 comprises a by-pass duct 18 concentric with the turbine 13 part of the engine and formed by a cowling 17 surrounding and spaced from the turbine part. The cowling 17, which ends in a nozzle 20, has flaps 22 tiltable to block the duct 18 and reverse the flow of by-pass air. The jet pipe of the engine ends in a nozzle 14 of which the exit area is variable by means (e.g. flaps 26) which spoil the jet pipe thrust thereby increasing the pressure ratio across the turbine causing the fan 16 to overspeed and increase the reverse thrust. The engine 10 may be mounted on a pylon 11 under the aircraft wing 8.
Patent GB-233151-A (GB)
Title: Improvements in connecting rods for railway or tramway points or switches
IPC: B61L5/02
Filed: 1924-05-20
Abstract: 233,151. Wrightson, S. S. May 20, 1924. Stretcher bars.-Tongues TR are connected by serrated brackets B fishing into an I-beam IB and engaged by a serrated washer C<1> held by a bolt A passing through both the beam and a fishplate riveted to the other side of the beam. The serrations on one bracket and washer may vary in pitch from those on the other for fine adjustment; or the serrations in the washer may be out of step with the bolt hole, so that turning the washer will effect a fine adjustment.
Patent GB-724218-A (GB)
Title: Improvements in or relating to phenthiazine derivatives
Filed: 1952-05-15
Abstract: The invention comprises phenthiazines carrying as the sole substituent a lower alkyl group in the 1- or 2-position (Beilstein nomenclature).  "Lower" alkyl means a group containing not more than 6, and preferably not more than 4 carbon atoms.  These compounds are prepared by reacting with sulphur at elevated temperature diphenylamine substituted in the 3-position by the appropriate alkyl group, preferably by heating the mixture with iodine as catalyst to a temperature of not less than 140 DEG  and preferably 150 DEG  to 190 DEG  C.  The product is a mixture of 1- and 3-alkylphenthiazines which may be separated by fractional crystallization.  The products are of use as starting materials in the process of Specification 714,217.  In an example 3-methyl-diphenylamine and sulphur with iodine as catalyst are heated at 150 DEG  C.  The product is separated by fractional crystallization from benzene into 1- and 3-methyl-phenthiazines.
Patent GB-636486-A (GB)
Title: Improvements in or relating to hollow floors
IPC: E04B5/06
Filed: 1947-05-07
Abstract: 636,486. Floors; beams. THINET, M., and HOFFNER, G. May 7,1947, No. 12371. Convention date, Dec. 19, 1944. [Class 20 (iv)] In a floor comprising a self-supporting framework of semi-cylindrical pre-cast beams laid side by side with their cavities facing downwards, each, beam has an upper part flattened and shouldered for co-operation with intermediate filler elements, the outer surface, to each side of the flattened part, forming part of a cylinder, while circumferential stiffening ribs are provided along its inner arcuate surface, the ribs being formed in one with a lower tie-piece which connects the lower edges of the beam together at intervals along its length. In the form shown, the floor consists of a number of arch-like re-inforced concrete beams a laid side by side with their lower edges a<SP>1</SP> in contact. Each beam has a flat top surface b, each side of which is rebated to form shoulders c. Ribs g, formed integrally with tie pieces h, are formed at intervals along the length of the beam and at the ends thereof. As shown at the left of Fig. 1, concrete slabs d may be positioned with their edges resting on the shoulders c of adjacent beams, the thickness of the slabs corresponding to the depth of the shoulders, so that a flush floor surface is obtained. Alternatively and as shown at - the right-hand side of Fig. 1, plain or reinforced concrete i may be cast into the spaces between the beams, which may be keyed to the concrete by protruding reinforcements j. The concrete may completely cover the beams (Fig. 3, not shown). To facilitate the attachment of a ceiling, the beams are provided with nailing strips e secured to their lower edges a<SP>1</SP> during casting.
Patent GB-1005787-A (GB)
Title: Gelatin derivatives for photographic materials
IPC: G03C8/06
Filed: 1962-03-30
Abstract: Gelatin derivatives are formed by reacting gelatin with a compound bearing an active halogen atom or atoms of the formula X-Y-Z, wherein X is halogen, Y is alkylene, arylene or an alkylene-arylene group, and Z is -COOH, -SO3H or -OOCHC=CHCOOH.  Examples describe the treatment of gelatin with bromacetic, chloracetic, p-bromomethyl benzoic and 4-fluoro-3-nitrobenzene sulphonic acids and with the mono-2-bromoethyl ester of maleic acid.
Patent GB-1224111-A (GB)
Title: Refrigeration system having generator temperature control means
IPC: F25B49/04
Filed: 1969-03-10
Abstract: 1,224,111. Refrigerating. CARRIER CORP. 10 March, 1969 [27 Aug., 1968], No. 12515/69. Heading F4H. In an absorption refrigeration system of the type in which a temperature responsive device on the generator reduces or terminates the supply of fuel to the generator when a predetermined temperature is excedeed, a second temperature responsive device is provided in thermal contact with the vapour passing from the generator to the condenser for exerting the same control when a lower predetermined temperature is exceeded. Both devices are connected in an electrical circuit (Fig. 2, not shown) which also includes a switch responsive to fuel pressure and a pilot ignition coil. The system itself is of the type described in Specification 1,226,241.
Patent GB-1107656-A (GB)
Title: Pattern assembly for shell molds and methods
IPC: B22C7/02
Filed: 1966-03-22
Abstract: 1,107,656. Shell moulds; disposable patterns. HOWMET CORPORATION. 22 March, 1966 [15 April, 1965], No. 12578/66. Heading B5A. Shell moulds are formed by the "lost-wax'' process, using a pattern comprising a first portion, including at least one pattern member conforming to the configuration of articles to be moulded, and being of heat disposable material, and a second "crucible " portion, of heat resistant material, and releasably attached to said first portion; a ceramic shell is formed about the external faces of the pattern and the second "crucible" portion is removed therefrom before heating to remove said first portion. Said second " crucible " portion is preferably covered by a heat-disposable film, e.g. of plastics, which is removed by heating simultaneously with said first portion. The degree of cracking of the shell mould due to the expansion of the wax during removal is reduced in the region of the "crucible" portion by this means. Removal of wax may be effected by heating rapidly to a temperature considerably above the melting point so that the surface of the wax melts without through heating and consequent expansion and mould cracking. The heat disposable material may be wax or a plastics-wax mixture and the heat resistant material may be metal; there may be a threaded connection therebetween. A heat resistant rod may extend into said first portion, connected to the "crucible" portion and removable therewith.
Patent GB-500278-A (GB)
Title: Capping head for use in closing bottles with tear-off caps
IPC: B67B3/14
Filed: 1936-05-02
Abstract: 500,278. Capping bottles. SCHILLER & URBAN, Ltd. May 3, 1937, Nos. 12616 and 12617. Void. Convention dates, May 2, 1936 and Dec. 7, 1936. Addition to 449,358. [Class 125 (ii)] The Specification describes the capping-head described in the parent Specification supplemented by dies for impressing dates or devices in the surface, e.g. in the top, of the tear-off cap, the dies q being carried in the pressure plate d and retained therein by engagement with pins, e.g. thin screws v, extending through the plate. The pins may extend only to the outer edge of the plate, being pressed inwards by springs or a rubber ring seated in a groove on the periphery of the plate.