baber/WOPTO huggingface dataset:
Patent GB-437324-A (GB)
Title: Improvements relating to braking apparatus for railway and other vehicles
IPC: B60T8/34
Filed: 1934-11-16
Abstract: 437,324. Fluid - pressure brakes. WESTINGHOUSE BRAKE & SAXBY SIGNAL CO., Ltd., 82, York Road, King's Cross, London.-(Assignees of Logan, J. W. ; Cambridge Court Apartments, Edgewood, Pennsylvania, U.S.A.) Nov. 16, 1934, No. 33062. Convention date, Nov. 17, 1933. [Class 103 (i)] Brake apparatus more particularly for railway vehicles comprises a device for automatically varying the braking effort with the rate of retardation of the vehicle having two co-operating members, one moved by the retardation of the vehicle and the other by a foot-pedal which initiates the braking action, the degree of braking maintained by the device being dependent on the extent of movement of the foot operated member relative to the inertia member. The brake cylinder 14 is controlled by an electrically-operated valve device 10 controlled by a pendulum 66 sensitive to deceleration and acceleration of the vehicle and an arm 76 parallel therewith and adapted to be operated by the pedal 78. The electromagnets 44, 62 are normally energized to close the inlet valve 26 and open the exhaust valve 50 and the arms 66, 76 hang vertically against a stop 94 as shown in the Figure. When the pedal 78 is depressed the arm 76 is moved away from the arm 66 and breaks the circuits of magnets 62, 44 in succession, thus first closing the exhaust valve 50, then opening the inlet valve 26. The application of the brakes and consequent retardation of the vehicle causes the pendulum 66 to swing and if the retardation is sufficient the contacts may engage to energize magnet 44 or both magnets 44, 62, so that the brake cylinder is closed to supply and may also be exhausted until the retardation returns to that adjusted by the pedal and arm 76. An additional valve 36 is provided on the stem of the inlet valve 26 in order to close the exhaust in case the valve 50 is not properly seated. In a modification, the foot-operated arm is U- shaped having light-responsive devices, such as photo-electric cells, on one arm and electric lamps on the other, the pendulum being adapted to swing between the arms and cut off the light from the light-responsive devices which operate relays controlling the brake-cylinder valves.
Patent GB-629930-A (GB)
Title: Improvements relating to furnace recuperators
IPC: F28F21/04
Filed: 1947-12-16
Abstract: 629,930. Furnace recuperators. LAMBOT & CO., Ltd., M., and LAMBOT, V. M. Dec. 16, 1947, No. 33083. [Class 64(i)] In a recuperator as described in Specification 572,034 which is built up of tubular, refractory members forming heating gas ducts which are surrounded or partly surrounded by passages through which the medium to be heated is passed, the construction comprises a series of superimposed horizontal courses of tubular blocks placed end to end in rows, each tubular block 1 having two spaced external flanges 2, 3, one located at, and the other located adjacent to, one end of the block to form a groove or recess 4 between them and a single external flange 5 located at the other end of the block adjacent end flanges 2, 5 of the blocks in one row engaging within the grooves or recesses 4 in the blocks of a laterally adjacent row. In the form shown, the body portion of the block is rectangular in. crosssection and the flanges 2, 3, 5 extend on two opposite sides of the section and are flush with the body portion at the top and bottom of the block. The horizontal courses forming the recuperator are spaced apart by plain blocks 9, the spaces 10 between which form with the spaces 8 between the tubular blocks, continuous labyrinth passages for the gaseous fluid to be heated which passages extend from top to bottom of the recuperator. On alternately opposite sides of successive courses are rows of tubular side blocks 18, and side tile blocks 13, which have flat outer faces and which have upon their inner faces, spaced flanges 19, 20, 21 and 14, 15, 16 respectively which interlock with the flanges 2, 3, 5 on the adjacent row of tubular blocks 1. Shortened main tubular blocks 11, tubular side blocks 18a, and side tile blocks 13a are fitted at the alternately opposite ends of successive rows to provide flat end faces to the recuperator.
Patent GB-655319-A (GB)
Title: Method for crowning gears by shaving
IPC: B23F19/06
Filed: 1947-12-16
Abstract: 655,319. Gear shaving. NATIONAL BROACH & MACHINE CO. Dec. 16, 1947, No. 33205. Convention date, April 29. Drawings to Specification. [Class 83 (iii)] A method of crowning a gear by shaving is described in which the gear and cutter are rotated at a crossed-axis angle of 2 degrees to 30 degrees and subjected to a relative rocking motion about an axis in a plane parallel to their axes at the mid-position, and to an independent rectilinear traverse in a plane parallel to the said plane, the rocking motion being such that at least one complete rocking cycle occurs during each single stroke of traverse. If the gear is moved and the cutter is stationary, the direction of traverse may lie in the plane of rocking, or it and the axis of rocking may subtend different angles with respect to the gear axis. The speed of rocking is preferably varied in each direction according to whether the rocking motion is with or against the rectilinear traverse. The maximum value of the rate of axial advance of the gear through the plane of the cutter lies between 0.005 and 0.015 inch per gear revolution. A plurality of rocking strokes occurs during a traverse stroke and both motions terminate, but not necessarily simultaneously, when the gear and cutter are in backlash. The gear is reversed, and any necessary in-feed applied, at the end of a traverse stroke.
Patent GB-1188627-A (GB)
Title: Improvements in Ball Joints
Inventor: GOTTSCHALD RUDOLF
IPC: B62D7/20
Filed: 1968-07-12
Abstract: 1,188,627. Ball-joints. VIKTOR LANGEN [trading as A. EHRENREICH & CIE]. 12 July; 1968 [21 July, 1967], No. 33305/68. Heading E2F. In a ball-joint of the type having a joint housing 1 formed with an aperture 8, surrounded by a sealing boot 2, through which a joint pin 9 rockably and rotatably emerges, and a ball 4 mounted on the joint pin and supported in the housing; the housing and boot are formed together as a one-piece unit injection moulded from polyurethane, and a reinforcing ring 6, seated in a peripheral groove 5 in the housing, is formed in one-piece with a connecting element 7 by injection moulding.
Patent GB-176092-A (GB)
Title: Improvements in and relating to wind screens for motor cycle side cars
IPC: B62K27/16
Filed: 1920-11-26
Abstract: 176,092. Francis, G. I., Barry, C. C., and Bluemel Bros., Ltd. Nov. 26, 1920. Wind and like screens or deflectors.-A detachable wind-screen for a motor-cycle side-car comprises a frcnt member with hinged side-members supported by a cramp on parallel motion arms which are connected to a bracket on the side-car and means for locking the parallel motion arms in any position. The side-wings h are hinged to the front screen j at l, l, and are supported in cramps b through which they may be adjusted longitudinally. Each cramp b, Fig. 2, is carried on the free end of a pair of parallel arms d, d, pivoted to a bracket i which is attached to the side-car, the arms being locked in any position by means of a screw h working in a quadrant slot g. When one side of the screen is detached from its supporting cramp the screen can be turned about the hinges on the other side.
Patent GB-1149035-A (GB)
Title: Water-insoluble monoazo dyestuffs and process for their preparation
IPC: C09B62/825
Filed: 1966-07-25
Abstract: 1,149,035. Monoazo dyestuffs. FARBWERKE HOECHST A.G. 25 July, 1966 [23 July, 1965], No. 33415/66. Heading C4P. The invention comprises water-insoluble monoazo dyestuffs of the formula wherein R 1  is H or an alkyl or alkenyl group which may be substituted, R 2  is H or an alkyl group, Z is an electrophilic substituent which does not impart solubility in water, hal is a halogen atom and the nuclei A and B may contain further substituents which do not impart solubility in water. They may be obtained by coupling in acid medium a diazo compound of an amine of the benzene series having an electrophilic substituent in the 4- position with an amine of the formula in the 4-position thereof. Specified electrophilic substituents are halogen, -NO 2 , -CN, -CF 3  and carboxylic ester group. Examples are given for the production of the dyes. They may be used for dyeing polyester, triacetate and 2¢ acetate fibres.
Patent GB-389151-A (GB)
Title: Improvements in or relating to strengthened or safety glass
IPC: C09J109/00
Filed: 1931-09-09
Abstract: Isoprenoid hydrocarbons are extracted from balata or guttapercha by means of chloroform after removing the resins with acetone.  Examples describe the preparation of interpolymers from (a) methyl acrylate and styrene, (b) methyl acrylate, styrene and benzene, (c) methyl methacrylate, styrene and the normal o-phthalic acid ester of the monoethyl ether of ethylene glycol, using light or heat and pressure with benzoyl peroxide as catalyst.
Patent GB-966100-A (GB)
Title: Novel cyclopentanophenanthrene compounds and a process for the production thereof
IPC: C07J71/00
Filed: 1960-09-30
Abstract: The invention comprises 6b , 19-oxido androstanes of the general formula: <FORM:0966100/C1/1> in which R represents keto, b -hydroxy or b -acyloxy, R1 represents keto, <FORM:0966100/C1/2> wherein R2 is hydrogen or a saturated or unsaturated aliphatic hydrocarbon group of up to 8 carbon atoms, and when R and R1 are keto, double bonds may be present at C-1,2 or C-1,2 and C-4,5.  The compounds may be prepared from 3b , 17b -diacetoxy-androstan-6b -ol by treatment with lead tetra-acetate and saponification of the product to give 6b , 19-oxido-androstane-3b  17b -diol. Oxidation of the latter compound yields the corresponding 3, 17-dione, which may be dehydrogenated to the analogous D 1 and D 1,4-compounds, e.g. via 2, 16-dibromo-6b , 19-oxido androstane-3, 17-dione and 16-bromo-6b , 19-oxido-D 1-androstene-3, 17-dione.  The 17-keto group may be protected as a cycloalkylene ketal, the 3-keto group then reduced to 3b -hydroxy with sodium borohydride, and after regeneration of the 17-keto substituent with h-toluenesulphonic acid in acetone, treatment with Grignard reagents yields 6b , 19-oxido androstane-3b , 17b -diols substituted by an alkyl, alkenyl, or alkinyl group in the 17a -position. Esterification by conventional methods gives the corresponding 3-mono- and 3, 17-di-esters.  The invention is illustrated by twelve detailed examples.
Patent GB-1417749-A (GB)
Title: Plural mould process for producing non-uniform pellicles
IPC: G02B1/04
Filed: 1973-07-16
Abstract: 1417749 Films; non-uniform cross-section UNION CARBIDE CORP 16 July 1973 [17 July 1972] 33742/73 Heading B5B [Also in Division C3] In a process for producing pellicles of non- uniform thickness on the surfaces of mould plates positioned with respect to each other to form a passage therebetween, there is provided a pattern of non-uniform pressure within the passage and/or a pattern of non-uniform temperature on the surface of the plates so that a stream of vapours of p-xylylene monomer directed through the passage is caused to condense and polymerize on at least one of the surfaces in response to the pattern of pressure and/or temperature, to produce on at least one of the surfaces a pellicle of non-uniform thickness, the pattern of the non-uniform thickness in the pellicles being directly proportional to the pattern of the pressure and/or temperature. The non-uniform pressure pattern is primarily created by the configuration of the passage between the plates. One or more of the plates may be rotated. The monomer vapour is obtained by pyrolysis of the p-xylylene; a specific material used is chloro-p-xylylene. Specific arrangements of circular mould plates are shown in Figs. 2, 3 and 4, the pellicles obtained when the plates are rotated have sections as shown in Figs. 2A, 3A and 4A and when the plates are stationary the sections are as shown in Figs. 2B, 3B and 4B.
Patent GB-752647-A (GB)
Title: Improvements in and relating to bobbin clutch means for textile spinning and like machines
Inventor: GRIEB BENJAMIN CURTIS
IPC: D01H7/16
Filed: 1954-11-22
Abstract: 752,647. Bobbin clutches. WHITIN MACHINE WORKS. Nov. 22, 1954, No. 33780/54. Class 120 (2). A bobbin clutch to be mounted on a spindle blade in a textile spinning &c. machine, comprises a cap 24 mounted on the spindle blade 20 and having circumferentially spaced notches in its lower edge portion, a plurality of rigid bobbinengaging segments 25, each having an upwardly extending lug 38 seated in one of said notches and having its lower end resting on and loosely engaging the top surface of the whirl 21, a ring 27 of rubber or the like mounted on the spindle blade within said segments and intermediate the ends thereof and having its outer portions engaging the inner surfaces of said segments to force the segments outwardly and means to limit outward displacement of the lower ends of the segments. This latter means may be either a ring 26 or a recess in the top surface of the whirl. The resilience of the ring 27 and centrifugal force urge the segments 25 into engagement with a bobbin placed on the spindle over the clutch.
Patent GB-1082502-A (GB)
Title: Improvements in cobalt base alloy
IPC: C22C19/07
Filed: 1965-08-06
Abstract: A cobalt base alloy comprises:-<TABS:1082502/C6-C7/1> the balance being cobalt.
Patent GB-739319-A (GB)
Title: An improved method for the hydrolysis of primary cellulose esters
IPC: C08B3/24
Filed: 1953-12-04
Abstract: A primary cellulose ester in non-water-soluble solution is subjected to hydrolysis by the action of an aqueous hydrolysing solution and for the purpose of accelerating the hydrolysis, the two-phase reaction mixture, comprising the water-insoluble cellulose ester solution and the aqueous hydrolysing solution, is subjected to a mechanical treatment such that the degree of dispersion and the area of the contacting surfaces in the dispersed phase is increased.  For the mechanical treatment there may be used homogenizing apparatus, emulsifying apparatus, colloid mills, apparatus for setting up supersonic vibrations, or apparatus for forcing the mixture through constrictions or nozzles.  The highly dispersed condition of the mixture may be maintained by continuous mechanical treatment or by the addition of a protective colloid such as an alkyl cellulose, a ricinoleic sulphonate, or cyclohexanol or a homologue thereof.  The hydrolysis may be carried out in stages, with separation of the cellulose ester solution phase between one stage and the next. Different hydrolysing solutions may be used for the different stages and the intensity of the mechanical treatment may be varied.  In an example, cellulose is pretreated with acetic acid and then esterified with acetic anhydride in presence of sulphuric acid and methylene chloride or carbon tetrachloride so that cellulose triacetate is produced in solution in the reaction mixture which contains 50-60 per cent by weight of methylene chloride or carbon tetrachloride.  For the purpose of hydrolysis a dilute aqueous solution of sulphuric acid is added so that a two-phase system results, and the reaction mixture is heated in a closed vessel.  A portion of the two-phase mixture is drawn off continuously by a pump and forced under high pressure through a gap of adjustable width, and following expansion to the pressure prevailing in the reaction vessel it is returned to that vessel. The treatment is continued until a cellulose ester of the desired properties is obtained.  A protective colloid or dispersing agent may be added prior to or during the pumping operation, and methylene chloride may be distilled from the mixture during or after completion of the hydrolysis.  An acetone-soluble cellulose acetate may be obtained.  Cellulose esters of other aliphatic acids or of aromatic acids or cellulose mixed esters may be treated similarly. In the case of a mixed ester the hydrolysis may be carried out in two stages, the conditions during the first stage being adjusted so that substantially only the ester groups of one kind are affected.  The dispersion may be broken at the end of the first stage; the first hydrolysing solution may be replaced by a differently acting one; the new mixture may be dispersed anew, and ester groups of the other kind may be hydrolysed.
Patent GB-783589-A (GB)
Title: Mailing chute
IPC: B65G11/04
Filed: 1955-11-25
Abstract: 783,589. Letter boxes. BOYD, J. R. Nov. 25, 1955 [April 2, 1955], No. 33854/55. Class 18. A letter box comprises sloping top and bottom walls 3, 4 joined by vertical sides 2 with open front and rear ends closed by covers 16, 18 hinged each along an edge respectively to a front and rear edge of the box and each opening outwardly of the box being interconnected so that opening the front cover causes the rear cover to open. As shown, Fig. 1, the covers 16, 18 are hinged at the top on horizontal hinge pins 14, 19 which have right angle extensions 22, 24 arranged so that the extension 22 of the front hinge pin 14 lies on an enlargement 26 at the end of the extension 24 whereby the cover 18 is raised when the cover 16 is opened. A flange 8 of an escutcheon 7 surrounding the front of the box permits the securing of the box to the front skin of a cavity wall, a similar arrangement being provided at the rear.
Patent GB-520211-A (GB)
Title: Improvements in or relating to anodes for electro-plating or depositing
IPC: C25D17/12
Filed: 1938-11-22
Abstract: 520,211. Anodes. DEUTSCH & BRENNER, Ltd., and TAYLOR, E. L. Nov. 22, 1938, No. 338,79. [Class 41] Anodes for electroplating comprise a number of flat strips 5-7 of electrolytically deposited nickel connected together either by a conducting wire 8, Fig. 3, threaded through holes 9 and electrically welded at 12; or by rivets 16, Fig. 4, which attach a supporting member 13. Specification 520,212 is referred to.
Patent GB-1308110-A (GB)
Title: Process for the preparation of phenylacetic acid
IPC: C07C51/255
Filed: 1971-07-20
Abstract: 1308110 Phenylacetic acid RHONEPOULENC SA 20 July 1971 [21 July 1970 2 June 1971] 33935/71 Heading C2C Phenylacetic acid is prepared by oxidizing phenylacetaldehyde with molecular oxygen or a gas containing molecular oxygen, in the presence of a catalyst comprising a derivative of at least one transition metal at a temperature of 0 to less than 120‹ C. The reaction is preferably carried out in the presence of an inert solvent. The catalyst may also contain at least one derivative of a metal of Groups IIIA, IVA, the lanthanides and the actinides. The process may be continuous.
Patent GB-466261-A (GB)
Title: Improvements in and relating to arrangements for working the peripheral surfaces of grinding discs and the like
IPC: B24B53/053
Filed: 1936-12-10
Abstract: 466,261. Shaping grinding- wheels. BODDEN, J. H. Dec. 10, 1936, No. 33993. Convention date, Dec. 18, 1935. [Class 124] The cylindrical surface of a grinding- wheel disc is shaped by two rolling tools 18 which are moved simultaneously to approach each other from opposite side faces of the disc on parallel paths. The tools are carried by ball joints from sliding racks moved by hand. Dust is excluded from these racks by sliding steel bands. The wheel is rotated by the adjustable shaft 3a connected by gearing to the pulley 7. The height of the table 3 is adjusted by the hand wheel 9, and the tools are moved towards the work by the wheel 34.
Patent GB-1463730-A (GB)
Title: Motor vehicle electrical system
IPC: B60Q1/08
Filed: 1974-08-01
Abstract: 1463730 Road-vehicle signals KO AN Inc 1 Aug 1974 [17 May 1974] 34016/74 Heading G4Q [Also in Divisions H3 and H2] A circuit for controlling vehicle headlights 13 comprises a windscreen wiper motor 43 and a relay 36 which is energized when the wiper motor is operative to switch on the vehicle headlights. A master switch 29 is closed to supply an earth connection to a terminal 27 of the control circuit 11, and operation of the wiper motor is effected by closing a switch 46. The vehicle battery potential is therefore applied to a terminal 41 so that a transistor Q8 is switched on to enable energization of the relay 36 from the battery potential which is also supplied to a terminal 32 when the vehicle ignition switch (not shown) is closed. Relay contacts 36a are closed to illuminate the headlights 13 via a dip switch 14. An indicator light L1 positioned on the dashboard is also illuminated. The operation of the wiper motor also switches on a transistor Q4 to energize a relay 39, the contacts 39a of which close to illuminate tail lights 16 and instrument lights 17. Similarly a tail light indicator lamp L2 is illuminated. In the event of a reduction of the ambient lighting, the increase in resistance of a photocell 48 decreases the potential at a point 51 and switches on a transistor Q2 which in turn switches on the transistors Q4, Q8 to illuminate the headlights, tail lights and instrument lights. A terminal 31 is connected to the vehicle ignition coil and receives pulses at a frequency which depends on the engine (and therefore the vehicle) speed. If the vehicle speed is high the increased frequency of the pulses, which switch on a transistor Q5, decreases the charge on a capacitor C1. The anode voltage of a programmable unijunction transistor Q6 does not exceed a reference voltage fed to its gate so that the transistor Q6 does not conduct thereby preventing conduction of a transistor Q7. A capacitor C3 therefore charges and switches on transistors Q3, Q1, Q8. The relay 36 is energized to switch on the headlights, the headlights remaining on until the frequency of the ignition pulses is insufficient to hold the transistor Q6 non-conductive. A switch 21 enables the lights 13, 16, 17 to be turned on manually and in a modified circuit a high vehicle speed automatically switches on the tail lights, instrument lights and the headlights.
Patent GB-1362689-A (GB)
Title: Continuous casting method including removal of coolant from metal surfaces
IPC: C21D1/62
Filed: 1971-07-20
Abstract: 1362689 Drying by vacuum DOW CHEMICAL CO 20 July 1971 [29 July 1970] 34039/71 Heading F4G [Also in Division B3] Liquid coolant is removed from a continuous casting 20 emerging from a mould 21 by passing the casting into a housing 1 enclosing a zone of reduced pressure and having a wiper such as a flexible member or brush 5 at its leading edge and a space between the casting and the trailing edge (where there may be a second flexible member or brush 5<SP>1</SP>) where air is drawn into the housing to wipe the casting. The housing 1 is suspended by a chain so that it is centred by the brushes 5, 5<SP>1</SP>. A pool of removed coolant may be retained by a lip 10 and seal the upper aperture of the housing. There may be leakage through the brush 5 so that coolant passes into the housing. The housing opening which faces the casting surface may be merely a slot in an inner surface.
Patent GB-846034-A (GB)
Title: Improvements in or relating to electric switch actuating means
Inventor: SINCLAIR WILLIAM
IPC: H01H13/62
Filed: 1957-11-01
Abstract: 846,034. Retractive switches; switches held set and freed mechanically. ERICSSON TELEPHONES Ltd. Oct. 14, 1958 [Nov. 1, 1957], No. 34110/57. Class 38 (5). A switch may be actuated and then locked or not locked in that condition dependent upon how the actuator has been moved. As shown, an actuator 1 has a stem 5 movable longitudinally and slightly laterally in a channel 14. The limb 6 of the actuator bears on the end of a plunger 7 which acts on contacts 8, 16. If pressure is applied at B, Fig. 2, the actuator tilts counterclockwise and moves downwards, so that the contacts are closed and locked by a shoulder 11 engaging under a lug 12. The contacts are released by pressing on actuator 1 at C. If pressure is applied at C initially, instead of at B, the actuator tilts clockwise and moves downwards and the contacts are closed only while the pressure at C is maintained. The actuator may be T-shaped with a rearward lug bearing on plunger 7 (Figs. 4, 5, not shown) and the plunger is biased up by a separate coil spring.