baber/WOPTO huggingface dataset:
Patent GB-1049411-A (GB)
Title: Safety belt buckle
IPC: A44B11/25
Filed: 1964-02-13
Abstract: 1,049,411. Safety belt buckles. R. EBERHART. Feb. 13, 1964 [March 28, 1963], No. 6091/64. Heading E2A. A buckle for a safety belt with two sections, comprises male and female portions 22, 20, the female portion including a body 36 with a back and two sides, a lever 30 in one end of the body, spring means 42 urging the lever forwardly and means e.g. a shaft 100 for receiving one end of the belt section 26, the lever and male portion having releasable interlocking means resilient means 44 contacting said male portion and urging said male portion forwardly for disengaging said lever and male portion and means on said male portion for receiving one end of the other belt section 24. The lever 30 has an upwardly extending boss 52 providing a rigid shoulder 54 to hold the male portion in locked position by engaging a slot 62 therein. When the portion 22 is fully inserted in the portion 20 it engages finger 44 placing the spring 42 under tension to hold the portion 22 firmly and thus prevent rattling. The lever 30 can be unlatched by a pivoted lever 80 which also forms part of the front cover and has an inwardly extending arm 88 which engages the inner edge of lever 30 urging it downwards as the cover lever 80 is raised to release the shoulder 54 so that the tension of the spring 44 ejects the portion 22. The cover lever is held in place in the latched position by lugs 92, 94 on the lever 30 engaging an extended portion 96 of the cover lever 80. The belt section 24 is attached to the male portion by looping it through a slot 28 and securing the free end to the remainder of the belt. The shaft 100 is supported in a frame 102 and under a bar 104 rigidly mounted on the side walls of the body 36. The frame 102 is slidable in the body 36 to clamp the web 26b between the bar 104 and the shaft 100 (Fig. 6) when the belt is under tension. The belt may be tightened by merely pulling the belt around the shaft and loosened by moving the frame 102 to the left and thus releasing the clamping action to allow the belt to be moved.
Patent GB-1221434-A (GB)
Title: PROCESS FOR THE PRODUCTION OF HIGHLY COERCIVE NEEDLE-SHAPED gamma-Fe2O3 AND MAGNETIC RECORDING MEMBERS PREPARED THEREWITH
IPC: H01F1/11
Filed: 1968-02-08
Abstract: 1,221,434. αFeOOH; γFe 2 O 3 . FARBENFABRIKEN BAYER A.G. 8 Feb., 1968 [8 Feb., 1967], No. 6196/68. Heading C1A. [Also in Division H1] A circular α-FeOOH, which is subsequently dehydrated, reduced, and re-oxidized to γ- Fe 2 O 3 , is obtained by precipitation in the presence of α-FeOOH nuclei from a ferrous salt solution by the addition of an oxidizing agent, at a pH of 2-6, a temperature of 40- 150‹ C., and an α-FeOOH formation rate of 0À5-15 g./l./hr., precipitation being effected by addition of a base or substance which forms ammonia in situ. The solution may contain FeSO 4  or FeCl 2  at a concentration of 1-150g./l. The oxidizing agent may be O 2 , air, or nitrobenzene. The precipitating agent may be an alkali metal or alkaline earth metal hydroxide or carbonate, e.g. NaOH or Na 2 CO 3 , or gaseous NH 3 , hexamethylene, tetramine, or urea. The nuclei may be formed by preciptating Fe(OH) 2  rapidly from FeSO 4  with NaOH, then oxidizing to α-FeOOH with air. 2-40 g./l. of nuclei may be used. The acicular α-FeOOH has a length : width ratio from 15 : 1 to 5 :1, which is preserved in the γ-Fe 2 O 3 . The α- FeOOH may be dehydrated to α-Fe 2 O 3  at 400‹ C., reduced to Fe 3 O 4  in H 2  and steam at 400‹ C., cooled in N 2 , and oxidized to γ-Fe 2 O 3  in O 2  at 250‹ C.
Patent GB-345061-A (GB)
Title: Improvements relating to brakes for tramway, railway and like vehicles
IPC: B60T15/06
Filed: 1930-02-25
Abstract: 345,061. Fluid-pressure brakes. ELECTRO-MECHANICAL BRAKE CO., Ltd. and CADBURY, G. N., Eagle Works, West Bromwich. Feb. 25, 1930, No. 6204. [Class 103 (i).] In fluid-operated brakes for tramway, railway and like vehicles the wheel and track brakes are controlled by interconnected inlet valves a and outlet valves d, a handle h being provided capable of movement in any desired direction for actuating the valves either individually or collectively. The inner ends of the stems b, e of each pair of valves a, d are pivotally connected by a bar c or f and the handle h, pivoted at one end by a universal joint g, passes between the bars c, f and also through a control gate j at the front of the valve casing. A vertical movement of the handle when in the control position shown in Fig. 1 presses the bar c or the bar f to operate both valves a or both valves d, while any one valve a or d can be operated by moving the handle sideways until it is opposite the appropriate valve and then by moving it vertically.
Patent GB-525674-A (GB)
Title: Improvements in or relating to pneumatic telemetering system
IPC: F15B11/10
Filed: 1939-02-25
Abstract: 525,674. Order-telegraph and like signalling apparatus. BRISTOL CO. Feb. 25, 1939, No. 6287. Convention date, Feb. 28, 1938. [Class 118 (ii)] In a pneumatic telemetering system in which a measuring pointer 12 controls a distant indicator 31, the former controls the fluid pressure in the connecting conduit 24 by means of a member 16 whose operating position is also dependent on the action of a member 25 deflecting in response to the fluid pressure. The pointer 12 is connected to a lever 26 which is pivoted on a movable vane 15. Fluid supplied at 20 passes through a constriction 23 in the pipe 22 to the orifice 14 over which the vane 15 moves so that the position of the vane determines the pressure in the pipe 22. This pressure controls a bellows valve 21 to operate a valve 17 and so determines the pressure in the conduit 24, which pressure operates the Bourdon spring 30 and so gives the remote indication. A local Bourdon spring 25, also responsive to the fluid pressure, is connected to the other end of lever 26 to provide an additional control of the position of the vane 15.
Patent GB-1028403-A (GB)
IPC: C07C51/14
Filed: 1963-02-15
Abstract: Alpha-(hydroxymethyl) acrylic acid is prepared by the addition, incremently so as to maintain a catalytic concentration in the reaction mixture, of nickel carbonyl to a system maintained at 85 DEG to 140 DEG  C. and comprising a liquid phase and a gaseous phase; the liquid phase comprising (a) propargyl alcohol or a C1 to C8 alkyl propargyl ether or an ester of propargyl alcohol and a C1 to C8 saturated aliphatic carboxylic acid, (b) a C1 to C8 alkanol, (c) an organic acid having a pka of 3 to 5 at 25 DEG  C. and (d) water; the gas phase comprising (i) carbon monoxide, the pressure of which is maintained at a value greater than that pressure exerted by the vapour emanating from the liquid phase but less than that pressure at which the reaction ceases, and (ii) vapour emanating from the liquid phase.  Advantageously a polymerization inhibitor, e.g. hydroquinone or the methyl ether thereof, or di-t.-butylcresol, may be added to the reaction mixture.  C1-C8 Alkyl esters of alpha-(hydroxymethyl)-acrylic acid are prepared by releasing the pressure on the system obtained in the above preparation, adding to said system an acid esterification catalyst and, if necessary, a further quantity of the C1-C8 alkanol sufficient to provide at least the stoichiometric quantity of said alcohol required for esterification of the alpha-(hydroxymethyl) acrylic acid, refluxing the resultant mixture to effect the esterification, neutralizing the catalyst with a base, and recovering the C1 to C8 alkyl ester of alpha-(hydroxymethyl) acrylic acid from the reaction mixture. Specified catalysts are sulphuric acid, sulphonic acid ion exchange resins and p-toluene sulphonic acid.  It is preferred that only 90 to 95% of said catalyst is neutralized with the base to prevent the formation of emulsions during the product extraction stage.
Patent GB-977578-A (GB)
Title: A process for the manufacture of vinyl chloride from gaseous mixtures containing acetylene and ethylene and produced by the thermal cracking of hydrocarbons
IPC: C07C17/10
Filed: 1961-02-22
Abstract: 977,578. Vinyl chloride. KUREHA KAGAKU KOGYO KABUSHIKI KAISHA. Feb. 22, 1961 [March 4, 1960(4)], No. 6470/61. Drawings to Specification. Heading C2C. Vinyl chloride is obtained from gaseous mixtures produced by thermally cracking hydrocarbons and containing C 2 H 2 , C 2 H 4 , CH 4 , H 2 , CO, CO 2  and higher acetylenic and olefinic hydrocarbons by washing the gas mixture in a scrubbing tower to separate out the higher hydrocarbons, converting the acetylene in the gas into vinyl chloride by reaction with hydrogen chloride in the presence of a hydrochlorination catalyst, contacting the product with dichloroethane in an absorption zone to absorb the vinyl chloride and removing the vinyl chloride/ dichloroethane solution from the lower part of the absorption zone and passing it to a separation tower; removing the ethylene-containing gas from the upper part of the absorption tower and reacting it with chlorine in the presence of dichloroethane as solvent to produce further dichloroethane, venting gas other than ethylene from the upper part of the ethylene reaction zone, removing dichloroethane from the lower part of this zone, thermally decomposing all or a part of the dichloroethane to produce a mixture of vinyl chloride and hydrogen chloride, treating the mixture with dichloroethane in a second separation tower to obtain a solution of vinyl chloride in dichloroethane, recycling this to the first separation tower, and recovering vinyl chloride from the solutions supplied to said tower. The hydrogen chloride separated after the pyrolysis step, which may contain some vinyl chloride, may be recycled to the acetylene hydrochlorination reaction.
Patent GB-745788-A (GB)
Title: Improvements in anchoring screw threaded fasteners in workpieces
IPC: F16B37/04
Filed: 1954-03-05
Abstract: 745,788. Screw-sockets. ILLINOIS TOOL WORKS. March 5, 1954 [March 5, 1953], No. 6589/54. Class 89 (1). A member 16, Fig. 5, for insertion in an aperture 30 in work 32 to receive an externally threaded fastener, e.g. screw 18, Fig. 3, and anchor the fastener in the work, comprises a head 20 and a shank 14 extending axially from one face of the head. The shank is divided longitudinally into two or more arms 22, 24, there being a central unthreaded bore 26 through the head and between the arms which are thickest at intermediate portions 34, 36. The shank may be of rectangular cross-section for co-operation with a rectangular hole, or circular, in which case the head is shaped hexagonally &c. Surfaces 38, 40 of the arms cam the arms inwardly during insertion into the hole, and portions 34, 36 subsequently engage the work. The screw may have a tapered end 46 and cutting-edges formed by slots 44, and cuts a screw-thread in the bore 26 when rotated therein. Only a shallow thread is cut in the tips of the arms, due to their flexing and these tips resiliently engage the screw to lock it in the member. A second workpiece 48 is secured by the screw-head to the head of the member 16, which head may have a rim 54. In another arrangement the member has four arms, and in a further arrangement, a shoulder is provided between the arms and the head and seats in a complementary recess in the work to transmit shear forces directly from the screw to the work.
Patent GB-1121353-A (GB)
Title: Communication system
IPC: H04L27/20
Filed: 1966-02-15
Abstract: 1,121,353. Data transmission systems. GENERAL DYNAMICS CORP. 15 Feb., 1966 [15 March, 1965], No. 6667/66. Heading H4P. [Also in Division G4] Digital data is transmitted in parallel form over a number of channels, each channel being phase-shift keyed and having the adjacent lower channel as phase reference. In the embodiment described, at the transmitter, Fig. 1 (not shown), 4-bit characters are split in pairs of bits the first pair phase-shifting a frequency f c  to one of four phases in twinplex manner, giving a signal for a first channel, while the second pair phase-shifts the signal on the first channel to one of four phases, giving a signal on a second channel. The signals on the two channels and a reference channel signal f c  are each mixed with a different frequency, the frequencies being separated by the same small frequency difference. One of the sidebands from each mixer is selected for transmission. A synchronizing signal is also sent. At the receiver, Fig. 3 (not shown), frequencies are generated equal to those received, and synchronized by the sync. signal. An arrangement of sine and cosine correlators, multipliers &c. fed by the received signals and by those locally generated, derives the original 4-bit word.
Patent GB-212110-A (GB)
Title: Improvements in tooth brushes for personal use
IPC: A61C17/24
Filed: 1923-03-08
Abstract: 212,110. Jackson, C. March 8, 1923. Hand-driven and hand-supported brushes.- The handle of a rotary tooth-brush is formed with a countersink midway of its length in which a collar or tubular member is loosely fitted. The collar is held while the whole of the tooth-brush is revolved. Reference has been directed by the Comptroller to Specifications 18162/90 and 21765/98.
Patent GB-359355-A (GB)
Title: Improvements in change-speed gearing
IPC: F16H61/02
Filed: 1931-03-04
Abstract: 359,355. Brakes. FORD MOTOR CO., Ltd., 88, Regent Street, London.-(Assignees of Ford, H. ; Dearborn, Michigan, U.S.A.) March 4, 1931, No. 6770. Convention date, April 21, 1930. [Class 103 (i).] Change speed-gearing suitable for vehicles comprises epicyclic gear trains brought into action by brakes 38, 51, 59, Fig. 1, and a main or engine clutch 18. Since the drive is picked up by the main clutch, the train brakes are of light metal-tometal construction. The brakes are similar, that for holding disc 51 being shown in Fig. 2, the disc having a natural direction of rotation towards the left. There are two metal shoes 115 of single V- section applied directly to the V-edge of the metal disc, each shoe having a roller 83 at each end. At the after end of each shoe is an energizing spring 87 normally held inoperative by a cam 86. If there was a spring on the other end of the shoe towards the advancing disc it would need be a heavy one. Instead of that, there is a lever 88, which engages positively the pivot pin 84 of the disengaging roller 83, and is operated by another cam 90 on the adjacent control shaft 85. A small spring 91 keeps the parts from rattling. Normally four cams 86 engaging four rollers 83 hold the two shoes 115 spread apart. To apply the brake, the shafts 85 are turned in unison by the toggle links 106. The cams 86 slip away and the forward end of each shoe is pressed against the disc 51 by its lever 88, and anchored there. The after end of each shoe is held against the disc by its energizing spring 87.
Patent GB-812227-A (GB)
Title: Dyeing and printing of textile materials of polymers of acrylonitrile
IPC: C09B19/00
Filed: 1957-02-28
Abstract: Textile materials of polyacrylonitrile are dyed or printed with an oxazine dyestuff of the formula <FORM:0812227/IV (c)/1> wherein R1 represents hydrogen, alkyl or substituted alkyl, R2 represents alkyl, substituted alkyl, aralkyl or aryl, R3 represents hydrogen or a -CH2-CH2-CH2- or <FORM:0812227/IV (c)/2> group linked to the aromatic nucleus in o-position to -NH- and X represents an acid radical.  The aromatic nuclei may contain further substituents.  Suitable acids X are hydrohalic, sulphuric, phosphoric, aminosulphonic, formic, acetic, propionic, chloracetic and oxalic acids.  Dyeing is effected from an acid bath, if necessary with the aid of a dispersing agent. Numerous examples, including one of printing, are given.  The dyestuffs may be prepared by reacting 4-nitroso-3-hydroxy-aminobenzenes with 1-amino-5-hydroxy-naphthalene, 7 - hydroxy - 1,2,3,4 - tetrahydrobenzoquinoline, or py - 3 - hydroxy - 1,2,3,4 - tetrahydro - 7 - hydroxy - benzoquinoline in acid medium, or by reacting 4-amino-2-hydroxyazobenzenes with 1 - amino - 5 - hydroxynaphthalenes.  Specifications 8750/1889 , 5159/1894 , [both in Class (ii)], 446,745, [Group IV], and 751,150 are referred to.
Patent GB-555877-A (GB)
Title: Improvements in or relating to locating clamps or similar devices
IPC: B25B31/00
Filed: 1942-05-20
Abstract: 555,877. Plate-clamping devices. ATKINSON, J. May 20, 1942, No. 6824. [Class 44] A plate clamping device comprises locating and aligning members of half round section mounted in a bush or plate and controlled by a spring or screw. The locating member 1 has a clamping toe la that engages the under-surface of the lower plate and has its flat side in contact with the flat side of the aligning member 2, the members 1, 2 being guided by holes in the limbs 3a, 3b of a plate 3. An eye 2b passes through the bifurcate ends 3c of the plate and engages underneath the limb 3b. The member 1 has an eye lb. The curved sides of the members are on the inside of the eyes which receive the arms 4 of a spring removal of which is prevented by the bent over end 4a. The ends 3c are upturned to support the spring. The clamping pressure may be increased by sliding the spring through the eyes. In a modification the members are mounted in a split or solid bush, the end forming the eye 2b being extended and inturned to engage a lateral hole in the bush. In a further modification the member 1, Fig. 7, is bent on itself priming the eye 1b receiving a ring 7 and is mounted in a sleeve 5 on which screws a thimble 6. This member 2 has an out-turned end engaging a hole 5a in the sleeve. Clamping is effected by partly unscrewing the sleeve.
Patent GB-349624-A (GB)
Title: Improvements in or relating to hypodermic syringes and the like
IPC: A61M5/24
Filed: 1930-03-01
Abstract: 349,624. Surgical syringes. NEVIN, M., 130, Arlington Avenue, Brooklyn, New York, U.S.A. March 1, 1930, No. 6837. [Class 81 (ii).] A hypodermic syringe comprises a barrel 10 cut away at 23, 24 to permit the insertion of an ampoule 25 and having a member 29 at its upper end adapted to press the ampoule upon resilient packing means 18 and positively retain it in position. As shown, the member 29 is in screw-threaded engagement with a screw cap 11 on the barrel and is forced down bv rotation of a knurled head 33. A spring 29a surrounding the screw-threaded portion prevents undesired slackening of the pressure applied. Alternatively the member may be provided with a pin working in a helical cam slot in the barrel. The member 29 is further formed with a depending chamfered flange 40, to position the head of the ampoule, and is axially bored to receive the usual plunger and plunger head 36, 35. The ampoule 25 is formed with a tapered end 26 and with an extension which is broken off before use. The end 26 seats upon a recessed portion 17 of a flanged plug 12 screwed into the barrel, the interposed packing 18 being annular and being secured peripherally by engagement in a groove in the barrel 10. The plug 12 has an extension upon which is screwed a lock-nut 19 for the needle 21.
Patent GB-579451-A (GB)
Title: Improvements in or relating to apparatus for indicating or measuring the thrust of a shaft
IPC: G01L5/12
Filed: 1944-04-13
Abstract: 579,451. Electric indicating systems. SHEPHERD, G. R. (Westinghouse Electric International Co.). April 13, 1944, No. 6854. [Class 40 (i)] [Also in Groups XIX and XXXVI] Apparatus for indicating or measuring the thrust of a shaft comprises a rotor assembly secured to said shaft, a stationary member, coil means secured to said stationary member for inducing a flow of magnetic flux in said stationary member and said rotor assembly, and a source of alternating current for energizing said coil means, characterized by means included in the rotor assembly responsive to the axial deformation of the shaft for altering the value of the magnetic flux thereby changing the value of a voltage in the electrical coil means by an amount indicative of the thrust of said shaft. The rotor assembly 3, Fig. 1, comprises a pair of axially displaced rings 7 and 9 secured to rotate with the shaft 1 on non- magnetic bushings 11 and 13 and having inwardly formed flange portions in close proximity forming air-gaps 14. The stationary member 5 has annular rings 17 and 19 forming two circular air gaps 21 and 23 with the peripheries of the rings 7 and 9 respectively. A coil 25 is secured within an annular recess of the stationary member 5 and is connected as one leg in a conventional impedance bridge circuit 27 which is supplied from a suitable source of alternating current and is adjusted to a balanced condition when the shaft is subject to zero thrust so no voltage will appear across the terminals of an indicating meter 29. When the coil 25 is energized a magnetic flux will flow in the path shown across the air gaps 14, 21 and 23, if the shaft 1 is not subjected to load this flux will remain at a constant value. If however there is axial deformation due to thrust the air gap 14 will be altered, the magnetic flux will change and so correspondingly change the voltage in the coil 25 by an amount indicative of the thrust on the shaft, this amount being indicated on the meter 29. The confronting faces of the rings 7 and 9 are provided with radial grooves 15 to compensate for any variations due to torque on the shaft 1. In another embodiment, Fig. 2, not shown, two coils are used and the arrangement of the air gaps is slightly different. Fig. 5 shows the invention applied to a shaft of large diameter, the rotor assembly being inside the shaft in this case.
Patent GB-774528-A (GB)
Title: Improvements in hose-end fittings
IPC: F16L33/24
Filed: 1954-03-09
Abstract: 774,528. Hose couplings. OIL FEED ENGINEERING CO.. Ltd., and WEST, E. B. June 3, 1955 [March 9, 1954], No. 6865/54. Class 99(1) An insert 1 and a sleeve 2 are screwthreaded so that one can be drawn on to the other and define between them an annulus of constant width to receive the end of a hose 7, the annulus tapering from the hose-receiving end thereof and increasing in diameter. As shown, the bore 5 of the sleeve is tapered, provided with projections 9 in the form of a helix and is screwed on to the end of the hose 7 the outer layer of which is removed to expose the hose reinforcement 8; the end wall 3 of the sleeve has a screw-threaded opening for reception of the shank 4 of the.insert 1, the taper of the insert reducing the screw-thread thereof so that the end of the shank is plain. A hexagonal part 17 is formed on the sleeve and the open end of the sleeve is counterbored at 11 to provide a skirt portion which overlies the outer layer of the hose. The insert 1 also has a hexagonal part 16 and is formed with a seating 12, a wire 13 passed through' an opening 14 in a nut 12<SP>1</SP> and under a flange 15 retaining the nut on,the insert. When the insert has been screwed into the sleeve the end of the hose is received in an annular pocket 10 in the sleeve, the reinforcement being gripped by the projections 9.