baber/WOPTO huggingface dataset:
Patent GB-480568-A (GB)
Title: Simultaneous production of vinyl chloride and polychlorethylenes
IPC: C07C17/08
Filed: 1937-05-28
Abstract: Vinyl chloride and polychlorethylenes are obtained simultaneously by passing a gaseous mixture of acetylene, and a chlorethane having at least 3 chlorine atoms over a catalyst consisting of porous contact substances or metal chlorides or both at a raised temperature, preferably 200-300 DEG  C.  Acetylene is preferably in excess.  In examples, tetrachlorethane and acetylene are passed at 250 DEG  C. over active carbon or charcoal, alone or treated with, e.g. barium, bismuth, ferric, mercuric or zinc chloride, or over cadmium chloride to yield trichlorethylene and vinyl chloride.  Pentachlorethane and acetylene at 260 DEG  C. with active carbon alone or saturated with, e.g., barium chloride, yield tetrachlorethylene and vinyl chloride.
Patent GB-932716-A (GB)
Title: Emergency brake mechanism
IPC: B60T13/38
Filed: 1960-04-28
Abstract: 932,716. Emergency braking systems. J. T. MEYERS, J. L. MILLER, and S. G.GUMMER. April 28, 1960, No. 15003/60. Class 103 (1). A vehicle braking system has a service brake actuated by a cam-shaft 14 which is connected to an emergency brake system comprising a rod 26 of a piston 24 in a cylinder 25 mounted on a pivot 32, the piston being urged by a spring 30 in the brake applying direction and in the opposite direction by fluid pressure which is normally sufficient to overcome the spring, a block 27 slidable on rod 26 being pivotally connected to cam-shaft 14, a stop 29 on the rod engaging the block to rotate cam-shaft 14 when the fluid pressure drops below a predetermined value. For service braking, an actuator 19 rotates cam-shaft 14 through rod 20. When the pressure in a reservoir drops below a predetermined value, spring 30 rotates the camshaft, the rod 20 having a sliding connection 35 permitting movement of lever 21 beyond the normal service braking movement. The sliding block 27 permits service brake application without interference from cylinder 25; but on emergency braking, nuts 29 on rod 26 engage block 27 to rotate lever 11. A manually operated valve may be used to vent cylinder 25 for applying the brakes of one or more wheels for parking.
Patent GB-834564-A (GB)
Title: Starter mounting for fluorescent tube lamps
IPC: H01R33/06
Filed: 1956-05-15
Abstract: 834,564. Two-part couplings. BUSCHJAEGER DURENER METALLWERKE A.G. May 15, 1956 [July 12, 1955], No. 15142/56. Class 38 (1). In a socket for a fluorescent lamp starter unit and consisting of a rectangular base 1 and cover 4, the base is provided at its corners with recesses 1a ... 1d, pairs of which are adapted to accommodate terminals 2 attached to a pair of strip contacts 3 according to whether the terminal screws are required to be accessible from the front or rear of the socket. As shown, the terminals 2 occupy recesses 1b and 1d so that the screws are accessible through holes 1e, 1f in the cover. If it is desired that the screws should be accessible from the rear of the base, recesses 1a, 1c are used for the terminals, the screws thereof registering with apertures 1g, 1h in the base. In the former case the contacts extend from the feet of the terminals whilst in the latter case they extend from the heads of the terminals.
Patent GB-655253-A (GB)
Title: Improvements in and relating to sectional machine drives
IPC: H02P5/50
Filed: 1947-06-09
Abstract: 655,253. Automatic speed control systems. BRITISH THOMSON-HOUSTON CO., Ltd., and POOL, W. J. June 9, 1947, No. 15150. [Class 38 (iv)] [Also in Group XXXVII] The invention relates to control systems for sectionalized machines such as paper making machines, in which each section is driven by a separate motor, means including a potentiometer connected across a constant voltage supply being provided to vary the speed of all the motors proportionately, together with means including a potentiometer associated with a tachometer generator driven by each motor to vary the speed of any individual motor. The invention consists in providing an additional potentiometer and reference voltage line, so that an individual motor may be run temporarily at a relatively different speed. Fig. 2 shows one section of a paper making machine in which the armature current of section motor 1 is supplied from a generator 2, the field of which is modified by amplifier 5 according to the difference between a constant voltage and that from tachometer-generator 7 driven by motor 1, so that the speed of the motor is maintained constant. The constant voltage is supplied from source 11 over lines 8 and 9, and corresponding elements for the other sections (not shown) are similarly connected to lines 8 and 9. Potentiometer 10 across source 11, provides means for simultaneously varying the speeds of all the section motors proportionally, the relative speed of any motor being adjustable by means of potentiometer 12 connected across the section tachometer-generator. To provide means for temporarily varying the relative speed of one of the motors so that it may run at a creeping speed, a third line 13 is connected to potentiometer 10 so that the ratio of the voltage between lines 8 and 13 to that between lines 8 and 9, is the same as that of the desired creeping speed to the normal running speed. The tachometer generator of each section is then connected to the slider of potentiometer 14 across lines 9 and 13, and by moving the slider to the point connected to line 13, the desired creeping speed may be introduced.
Patent GB-1040108-A (GB)
Title: Apparatus for treatment of liquid material
Inventor: LAW FRANK
IPC: C02F11/20
Filed: 1964-04-13
Abstract: 1,040,108. Freezing liquids; refrigerating. FYLDE WATER BOARD. April 1, 1965 [April 13, 1964], No. 15151/64. Heading F4H. [Also in Division B1] Liquid material is frozen in a bank of trays 14 and is subsequently transferred to a tank 25 in which the frozen liquid is melted and contaminating matter is precipitated from the liquid. Trays 14 are mounted adjacent the open end of a housing 12 and are cooled by air circulated by fans 22 over the evaporator 21 of a refrigeration system, the air being re-circulated to the fans through a gap between housing 12 and an outer casing 10. Adjustable baffles 23 are provided for controlling the direction of air flow relative to the trays. Upon completion of freezing, warm refrigerant is supplied to evaporator 21 and trays 14 are pivoted about their rear edges 5 to discharge the frozen bodies into tank 25, a grid 29 being provided for breaking up the bodies. Tank 25 is heated by the condenser 27 of the refrigeration system and is provided with baffles 28 for promoting convection circulation. Precipitating matter is withdrawn through pipe 26. The refrigeration system (Fig. 2, not shown) comprises a compressor 30, oil-separator 31, condenser 27, float regulator 32 and a separator 33 from which liquid refrigerant is supplied via pump 35 and valve 38 to the evaporator and to which the refrigerant is returned via valve A. Separator 33 is connected to the compressor by a suction line which includes an adjustable valve 40 and a normally closed by-pass valve 41. During harvesting a valve B is opened to supply all or part of the warm refrigerant from oil-separator 31 to the evaporator and valve C is opened to return the refrigerant from the evaporator to separator 33 via a second float regulator 37. Valve A is closed during harvesting.
Patent GB-163600-A (GB)
Title: Improvements relating to foundry moulding machines
IPC: B22C15/10
Filed: 1920-06-04
Abstract: 163,600. O'Keefe, W. M., (trading as Adaptable Moulding Machine Co.). June 4, 1920. Moulding-machines, particularly of the type described in Specification 131,713, are provided with a second table to which the pattern plate and moulding-box can be transferred from the moulding-table and with means for actuating the consolidating mechanism and the transferring mechanism from a common shaft. The pattern plate f, and box g are shown as supported on the jarring table j which is operated, as described in the aforesaid Specification, by a cam m and levers l. The cam shaft n is driven from a shaft d through a clutch o, held in gear by a spring t. On an upper shaft c are keyed two arms e which, when the plate and box are to be transferred, are secured by pins h and cotters &c. to the plate f. The shaft d is moved endways to put the wheels u, v into gear to rotate the shaft c. The plate and box are thus raised and inverted into an adjustable table i. The pinions u, v are put out of gear automatically by a cam on the shaft c, which raises a lever y, Fig. 3, out of a groove in a collar x, and allows the spring t to move the shaft d endways, but not sufficiently to put in the clutch o. When the clutch is to be put in, the lever y is raised by hand to clear the collar 3 and allow the spring t to act.
Patent GB-333312-A (GB)
Title: Improvements in sound amplifying apparatus and systems
IPC: H04M9/00
Filed: 1929-05-16
Abstract: 333,312. Graham Amplion, Ltd., and Phillips, C. F. May 16, 1929. Systems for transmitting music &c.-In a sysÀ tem comprising a microphone and local amplifier, and a main or central amplifier which feeds one or more loud-speakers and to which the local amplifier may be connected by a switch at the main amplifier, the current and potential for the local amplifier and microphone is derived from a source associated with the main amplifier. There may be a number of microphones and associated amplifiers, any one of which may be connected to the main amplifier, to which a gramophone pick-up may also be connected. The microphone 1, as shown, is connected to the input of a. two-valve resistance-coupled amplifier 3, 4 the output of which is connected to leads 5, 8, the lead 5 which is preferably grounded being connected to the positive terminal of a source 11 at the main amplifier represented by valve 7. Leads 8 and 12 from the local amplifier are connected over a switch 9a, 9b to the input transformer 6 of the main amplifier and to the negative terminal of source 11. Lead 5 supplies anode potential to the valves 3, 4, the filaments of which are connected in series circuit with suitable resistances 13, 14, 15 across leads 5, 12. The grid leads of the valves 3, 4 are taken to suitable points in the filament circuit for biassing purposes, and a lamp may be connected across leads 5, 12, as described in Specification 333,310, to indicate to the user of the microphone that he has been connected up to the main amplifier.
Patent GB-524374-A (GB)
Title: Improvements in or relating to the manufacture of bearings
IPC: B22D19/08
Filed: 1939-05-24
Abstract: 524,374. Making lined bearings ; casting- machines. GLACIER METAL CO., Ltd., and MELHUISH, M. May 24, 1939, No. 15438. [Classes 83 (i), 83 (ii), and 83 (iv)] Moulds.-In the formation of bearing shells or liners a strip of steel or other backing metal 3 is bent to semi-cylindrical section and lined by passing through a tank 6 containing the bearing metal 7, the entrance hole having a section identical with that of the unlined strip and the exit with that of the lined strip. This is parted to form a series of liners and may be pressed or machined true before or after parting. In a modification the sides 26 of the tank are omitted, the level of the molten metal being kept just below the edges of the strip. In this case the exit end 36 of the machine mav be made hollow for cooling water. The strip may be heated at 8 and cooled at 12. The strip may be bent by rollers which also serve to feed it through the coating means.
Patent GB-759906-A (GB)
Title: Improvements in or relating to electric immersion heaters
Inventor: CHINN ARTHUR JOHN
IPC: H01H37/04
Filed: 1953-06-05
Abstract: 759,906. Thermal switches. RHEOSTATIC CO., Ltd. May 25, 1954 [June 5, 1953], no. 15598/53. Class 38(5) [Also in Group XI] An electric immersion heater is fitted with a thermostatic pocket or sheath 3 projecting into the heated fluid space and a bimetal thermostatic switch held by a short fixing stem 7 which does not form or contain the bimetal 19 and which projects into the pocket 3. The heat conductive metal stem 7 may extend through a bush 6 in a fixing boss 1 into a tube 3 between arms 2 of the heater. The switch comprises a bimetal strip 19 adjustably mounted by a screw 21 on a metal L-shaped bracket 11 riveted to the stem 7. On increase in temperature, the bimetal 19 causes an insulating push rod 20 to move a flexible strip 14 carrying a contact 15 away from an adjustable contact 13 on a plate 12 carried by the bracket 11. The flexible blade 14 carries an armature 16 embracing a permanent magnet 17 supported on a plate 18. The extent of contact movement is adjusted by movement of a plate 22 to or away from a limb of the twin armature 16. The relation of the gaps between the two limbs of the armature and the magnet is determined as in Specification 625,492. The short stem 7 may be formed from strip metal bent to a U to provide springy contact with the pocket 3
Patent GB-164340-A (GB)
Title: Improvements in or relating to pneumatic suspension devices for vehicles
IPC: F16F9/36
Filed: 1921-06-06
Abstract: 164,340. Mercier, H. June 7, 1920, [Convention date]. Addition to 13714/14. Pneumatic springs.-Consists of an improvement in the pneumatic suspension apparatus described in the parent Specification. For counter-acting the tendency of the piston to tilt in one direction when it is mounted on one end oi a wheel journal, an elliptical packing 47 is held obliquely on the cylinder 46 by a cap 48, or on the piston, so that air pressure in the unsvmmetrical chamber 47<1> balances the thrust due to the overhang. The Specification as open to inspection under Sect. 91 (3) (a) comprises also apparatus for dispensing with a distributing valve and to avoid loss of oil; for this purpose, the piston 49, Fig. 2 (Cancelled), may be provided with two sets of packings 51, 52 held by caps 53, 54. The feed orifice 55 when registering with a piston opening 57 admits air the pressure of which forces the piston down and closes the outlet by means of the outwardly-pressed packing 52. Further movement renders operative a regulating leak 56. An alternative distribution, shown in Fig. 3 (Cancelled), comprises a casing 58, connected to the chassis, with an air feed branch 59, a branch 60 connecting with the suspension cylinder, and a leak 61. A piston 63 fits in the casing which has its bore extended to form a space 62 communicating with the branch 59. The piston 63 rests on the axle or part of the suspension, and has a conduit 64 and an inlet 65 which communicates with the feed branch over the length of the space 62. Further piston depression cuts off the feed connection, and subsequently may uncover the upper regulating leak 61. To reduce the effects of rolling, a pendulum 66, Fig. 4 (Cancelled), may be used to cut off the shock-absorbing chamber by its movement, being suspended in an air tight casing 69 with a chamber connection 70 and a bottom branch 71 connected to the suspension. A valve 72 is adapted to be moved by the pendulum to close its inlet port 75 to cut off the chamber 69, thus reducing the resiliency of the suspension. Rolling may also be reduced by cross-coupling by a pipe 85, Fig. 6 (Cancelled), each rear suspension with a front one, each rear cylinder 81 being fed by a branch 86 and the front ones 82 being provided with escape orifices 87. The pressure in the rear suspensions always being greater, compressed air escaping from a rear suspension is used for working the front suspensions in expanding. This subject-matter does not appear in the Specification as accepted.
Patent GB-762405-A (GB)
Title: Liquid compositions capable of being atomized at normal room temperature
IPC: A61Q13/00
Filed: 1954-05-27
Abstract: In apparatus for dispensing a product in spray form by vapour pressure, the product is either a concentration of at least 75 per cent by volume of a saturated aliphatic monohydric alcohol containing not more than three carbon atoms, e.g., methanol, ethanol, isopropanol or a substance that is soluble in or miscible with this alcohol.  The vaporizing constituent comprises a fluorinated, or fluorinated and chlorinated, low molecular weight saturated aliphatic hydrocarbon containing not more than two carbon atoms, butane or a mixture thereof in an amount constituting from 10 per cent to 35 per cent of volume of the composition.  The composition results in a vapour pressure that does not exceed an atmosphere gauge and thus enables more fragile containers to be employed.  The substance to be dispensed may comprise a medicinal substance such as benzoin, an anti-histamine, novacaine, procaine or ethyl para-amino benzoate.
Patent GB-466537-A (GB)
Title: Improvements in machine and method for making solid comminuted material
IPC: B22F9/04
Filed: 1936-06-05
Abstract: 466,537. Grinding - mills. TRIGGS, W. W. (Du Pont De Nemours & Co., E. I.) June 5, 1936, No. 15726. [Class 59] [Also in Group XXII] Molten material is comminuted by pouring it into the space between a cooled stationary drum 10 and a rotating drum 50 having radial tools 72 arranged spirally. Cooling fluid is admitted to jackets 24 fitted to the halves of the drum and is directed over a sinuous course by ribs 36. The drum 50 may have an inner jacket 54 with a spiral rib 58 and supplied with cooling fluid via' the driving shaft 48. The tools 72 may have a front clearance and rake each of 5‹ and may be adjustable in their sockets or be fixed so that their operating edges are at an angle, say of 45‹, to the line of travel. The speed of rotation may vary.
Patent GB-631028-A (GB)
Title: Improvements relating to machinery safety guards
IPC: F16P1/02
Filed: 1947-06-16
Abstract: 631,028. Machinery guards. SILVAFLAME CO., Ltd., and GIBSON, E. B. June 17, 1946, No. 15746. [Class 80 (iv)] A guard for a rotating tool 18 is formed of two relatively telescopic parts 28, 29, supported in a member 11 hinged at 21 to a member 10 detachably secured at 13 to the non-rotating head 14 of the machine. The lower edge 42 of the part 29 remains in contact with the workpiece or work-holder throughout the working stroke of the tool. As shown, a screw 31 adjustably positioned in a slot 27 in the member 11 has a head 32 engaging a slot 30 in the part 28. Fixed to the latter are screws the heads 37 of which engage slots 36 in the part 29. The part 29 has a transparent screen 40 for viewing the work.
Patent GB-1366063-A (GB)
Title: Recording and/or playback machanisms
Inventor: STAAR T C J L
IPC: G11B5/48
Filed: 1973-04-02
Abstract: 1366063 Magnetic tape recording and playback STAAR SA 2 April 1973 [10 Jan 1973] 15755/73 Heading G5R A pinch roller 5 and a magnetic head or heads 10 are mounted on separate movable members, and operation of a control means 13, 28 or 40 causes first the head or heads 10 and then the pinch roller 5 to move away from the tape 1, e.g. for fast winding of the tape.
Patent GB-308519-A (GB)
Title: Improvements in and relating to outlet fittings for shower baths, tanks, basins & other receptacles
IPC: E03C1/26
Filed: 1928-05-30
Abstract: 308,519. Niedecken, E. F., and Jones, W. I. May 30, 1928. Tanks.-An outlet fitting comprises a member welded to the receptacle at 6, 7 and having a bevelled seat 8 supporting the bevelled lugs 10 of a strainer 9, the margin of the strainer being spaced from the flange 3. The fitting may be threaded at 11 for connection to a pipe.
Patent GB-595386-A (GB)
Title: Improvements in or relating to winches
IPC: B66C3/12
Filed: 1945-06-21
Abstract: 595,386. Winches. RUSTON-BUCYRUS; Ltd. June 21, 1945, No. 15822. Convention date, Sept. 29, 1944. [Class 78(v)]. Winch mechanism for actuating a clamshell excavator includes a continuouslyrotating member, a closing-drum clutch for coupling the rotating member to a closing- drum, a holding-drum clutch for coupling the rotating member to a holding-drum, and a one-way interlock operatively connecting the lever of the closing-drum clutch to the holding-drum clutch in such manner that moving the lever to set or release the closing-drum clutch will set or release the holding-drum clutch' while leaving the lever of the latter clutch free to operate that clutch without operating the closing clutch. The closing drum 11 has a brake (not shown) and clutch 16 with band 17 dead ended at 18, the live end 19 being connected to a booster drum 24 having a band 25. for imparting the rotation of a constantly rotating shaft 13 to the closing-drum which operates a closing line 14. The closing- drum clutch lever 27 sets the band 25 and a holding-drum brake and clutch 34 with band 33 attached to a spider 35 keyed to the shaft 13 imparts the rotation of the shaft to a holding-drum 12 operating holding line 29, which can also be actuated by holding-drum clutch lever 30 by means of booster-drum 32 and band 31 when it is desired to raise the bucket open and empty. A one-way interlock operatively connects the closing-drum clutch lever 27 to the holding-drum clutch 33, 34 so that by moving lever 27 to set or release the closing-drum clutch 16, 17, the holding- drum clutch 33, 34, is set or released, and the holding-drum clutch lever is free to operate the holding-drum clutch without operating the closing-drum clutch. The booster drum 32 is retarded and clutch 33, 34 is set by lever 41 which operates through rod 39, spring 40 and bell crank 37 and shoe 36. When the lever 27 operates clutch 16, 17 the shoe 36 is loosely set on booster drum 32 yieldably setting clutch 33, 34, causing the drum 12 to take up slack in line 29: In a variation the shoe 36 is without lining and bears on part of the band 31 and in another variation shoes replace booster bands 25 and 31. Spring 40 then bears directly on the lever 27 and rod 39 causes the lever to bear on a pin in the chain of control of the booster-drum 32.
Patent GB-909066-A (GB)
Title: Method for master batching solutions of conjugated diene rubbery polymers
IPC: C08J3/215
Filed: 1961-05-02
Abstract: A solution of a conjugated diene rubbery polymer is masterbatched by dispersing a slurry of carbon black in a non-aqueous dispersing medium in the solution, coagulating the rubber in the presence of the dispersion, recovering a rubber crumb containing dispersed carbon black and drying the crumb. Specified dienes are butadiene, isoprene, dimethylbutadiene, 2-methoxybutadiene, 1,3-hexadiene, 1,3-octadiene, 1,3-dodecadiene and 2-phenyl-butadiene.  These dienes may be copolymerized with styrene, acrylonitrile, methyl acrylate, methyl methacrylate, vinyl chloride, methyl vinyl ether, ethylene, propylene, 1-butene, 1-propene and 1-octene.  The dispersion may be passed through a colloid mill or ground on a roll mill before being added to the solution.  The dispersion preferably contains 1 to 35% carbon black so as to give 10 to 150 parts black per 100 rubber.  The usual rubber extender oils may be present.
Patent GB-1461755-A (GB)
Title: Polymers possessing imide groups
IPC: C08G73/00
Filed: 1975-04-17
Abstract: 1461755 Polymers from unsaturated imides RHONE-POULENC INDUSTRIES 17 April 1975 [18 April 1974] 15860/75 Heading C3R A process for preparing a polymer containing imide groups comprises reacting cyanamide and an unsaturated bis-imide or mixture thereof with a mono-imide wherein D is A is a C 2-30  organic radical; Y is H, CH 3  or Cl; R is H or a C 1-20  organic radical; and m is 0 or 1. There may be 1 to 20 mols. imide group per mol cyanamide. Reaction may be effected in bulk or in an organic diluent at 50‹ to 300‹ C. or in 2 stages, a prepolymer being formed at 50‹ to 150‹ C. and cured at up to 350‹ C. A radical or anionic polymerization catalyst may be used, e.g. lauroyl peroxide, azo-isobutyronitrile or diazobicyclooctane. Reaction may be effected in the presence of (i) an adjuvant containing 2 to 4 benzene rings which does not melt or sublime below 250‹ C. or, as modifiers (ii) one or more vinyl, maleic, allyl or acrylic monomer or (iii) an unsaturated polyester, reference being made to Specifications 1,260,819, 1,355,401 and 1,355,402 respectively in respect of these embodiments. Reference is also made to Specification 1,190,718. Specified uses of the polymer include the manufacture of tubular or plate insulators for transformers, printed circuits, gear-wheels, selflubricating rings and stops, compressor segments and valve seats.