baber/WOPTO huggingface dataset:
Patent GB-497877-A (GB)
Title: Expansible cutter tool
IPC: E21B10/32
Filed: 1937-11-23
Abstract: 497,877. Expansible tools. MACCLATCHIE MANUFACTURING CO. OF CALIFORNIA. Nov. 23, 1937, No. 32276. Convention date, Nov. 30, 1936. [Class 85] An expanding tool for drilling wells &c. comprises a cutter movably mounted on a tool body with an axial bore, a mandrel slidable in the bore and a projection on the cutter extending into the mandrel, the mandrel contacting the projection to move the cutter on moving in one direction, while when the mandrel moves in the opposite direction, the cutter returns into the body by its own weight. The body 1 has cutters 7 pivoted at 8 in slots 4, and the mandrel 6 has an extension 6a with flats adjacent the cutters and apertures 10 through which lugs 11 on the cutters extend when the cutters are collapsed and the mandrel raised. A spring 30 presses the mandrel which carries a piston 17, a plug 20 restricting flow through the mandrel in its upper position. Pressure fluid supplied through the drill string depresses the mandrel and also passes through the latter to act on the lugs 11, whereby the cutters are expanded into contact with the wall of the well; the weight of the drill string completes the expansion of the cutters so that the lugs 11 are clear of the upper ends of the apertures 10, some of the pressure fluid passing through the apertures to below the cutters.
Patent GB-1092923-A (GB)
Title: Gyromagnetic resonance apparatus
IPC: G01R33/46
Filed: 1965-07-28
Abstract: 1,092,923. Gyromagnetic resonance apparatus. VARIAN ASSOCIATES. July 28, 1965 [Aug. 17, 1964], No.32330/65. Heading G1N. In a gyromagnetic resonance spectrometer in which an r.f. signal is provided for spin decoupling, means are provided for selectively changing the strength of the r.f. field. With all the switches in position 1 the apparatus operates without spin decoupling, r.f. generator 10 energizing a coil 20 on a reference sample 14 and a coil 28 on an unknown sample 12 through attenuator 22. Coil 20 is connected in a sideband oscillator loop including receiver 32, field modulator 34 and modulating coils 38, constituting a fieldfrequency control circuit for controlling the ratio between the polarizing field strength and the r.f. signal frequency. An automatic frequency control circuit is also provided whereby the frequency of r.f. generator 10 is controlled from AFC circuit 40 in accordance with the output from modulator 34. Sample 12 is provided with a D.C. sweep coil 42 energized in synchronism with movements of recorder 44. With the switches in position 2 the AFC circuit 40 is disconnected and a phase-lock circuit connected to the output from receiver 32 replaces it. The receiver output is compared in frequency with the output from a crystal oscillator 58 and the resulting error signal is used to control both the polarizing field supplied by magnet 30 and also the frequency of generator 10. The r.f. power is increased so that spin decoupling occurs since attenuator 56 is connected instead of attenuator 22. The D.C. sweep signal is modulated at an adjustable frequency by means of oscillator 72 to provide a signal for observing resonances. The output from coil 28 at the frequency of oscillator 72 is detected at 50 add the resulting D.C. signal is recorded at 44. In order to avoid "fringing" effects due to the field of coil 42 affecting reference sample 14 a unity gain amplifier 86 is connected in the side-band oscillator loop. In addition a power amplifier 88 is coupled to amplifier 86 in a feedback arrangement and is utilized to drive sweep coil 42. Circuits for balancing arrangement 24 and oscillator 72 are described Figs.2 and 3 (not shown). In use the separation between two resonance lines is measured with the switches in position 1, then the switches are changed over and the frequency of oscillator is adjusted so that the resonance peaks are saturated in turn, allowing measurement of the unsaturated peak in each case. A single control is provided for varying the D. C. sweep field and the frequency of oscillator 72 so that the resonance peaks obtained using different oscillator frequencies are in alignment.
Patent GB-623215-A (GB)
Title: Improvements in and relating to the winding of cylindrical packages of tow or sliver
IPC: B65H54/28
Filed: 1946-11-01
Abstract: 623,215. Winding tow. COURTAULDS, Ltd., LASZLO, A., LLOYD, R. L., and MERRIMAN, H. B. Nov. 1, 1946, No. 32502. [Class 120 (ii)] In a process for winding tow or sliver of substantially parallel fibres and having a denier of at least 50,000, the tow is wound at a constant linear speed on to a rotating carrier so as to build up a cylindrical package and is wound in even layers by a traversing guide the period of which is increased in proportion to the reduction in rotational speed of the package so that in each layer the tow lies in a regular helix the successive turns of which touch or almost touch one another. The tow supports a jockey roller 3 the movement of which, depending upon the tension in the tow, actuates through springs 34, 35, switches 37, 39 to vary, through the disc 45, and solenoids 58, 59, the output speed of a variable speed gear comprising two friction discs 42, 43, the disc 42 being driven by an electric motor 14. The disc 43 drives the winding spindle through a chain 12 and the spindle drives an endless traverse chain 22 carrying pegs 25 which, through a bar 23, reciprccate a slider 19, carrying the tow traverse guides 6. At the end of each reciprocation, the bar 23 is retracted and advanced by cams 26, 27, so that the slider may be driven by the pegs on the upper and lower runs of the chain 22, respectively. The position of the disc 45 is determined by a screwed shaft 46, 47 turned in one direction or the other by a motor 48 through a spur gear 51 and dog clutch 55, 541 or through a chain gear 50 and dog clutch 53, 56, the clutches being engaged by the energising of the solenoids 58, 59. In the machine control system Fig. 6, the starting switch 64 energises the contactor 65, to start the motor 48, and the contactor 66, to start motor 14 and bridge contacts 67, 68. Winding now begins and, depending upon the position of roller 3, switches 37, 39 may be closed to energise the solenoids 59, 58 to vary the speed of feed. The first movement of the shaft 46, 47 to decrease the speed, closes the switch 69. When the team 5 is full, the switch 70 is closed and, at the end of transverse stroke, switch 71 is closed by the thread guide 6. Relay 72 is thus energised and switches 73, 74 closed and switch 75 thrown over. The contacter 66 is broken to stop motor 14, the solenoid 58 energised and with motor 48 still running moves the variable-speed gear to maximum speed position: Switch 69 is thus broken again and switches 73, 74, 75 return to original positions. if tow supply fails, roller 3 falls and operates switch 76 to cut off current. If tow should wrap on roller 3 and move it upwardly by a large amount, switch 77 is operated to switch off current. Should the control box fail, a safety switch 78 is closed. If the machine has to be stopped during winding, a hand-operated resetting switch 79 is provided.
Patent GB-428198-A (GB)
Title: Improvements relating to apparatus for the manufacture of vitreous products by drawing or rolling
IPC: C03B5/033
Filed: 1934-11-12
Abstract: 428,198. Fused silica; glass manufacture. SOC. ANON. DES MANUFACTURES DES GLACES ET PRODUITS CHIMIQUES DE ST. GOBAIN, CHAUNY, & CIREY, 1<bis>, place des Saussaies, Paris. Nov. 12, 1934, No. 32543. Convention date, Dec. 14, 1933. Addition to 400,472. [Class 56] Apparatus of the kind described in the parent Specification, for producing drawn or rolled vitreous products, is provided with a vertical resistor arranged above and coaxial with the crucible in which the vitreous material is fused. The material 1 is contained in a receptacle 2 surrounding a crucible 15 which is heated by a helical resistor 18, as described in the parent Specification. The crucible 15 is conical in shape and the bottom is constituted by a die 16 through which the fused material is drawn. The vertical resistor consists of a carbon tube 3 and a carbon rod 4 connected together at their lower ends by means of a carbon ring 5. The ring is replaced by a mandrel 31 when tubing is being drawn. The resistor is adjustably supported in the upper part of the receptacle 2 coaxial with the crucible 15, and fusion occurring about the resistor produces an empty space between it and the fused material by which vapours can escape upwards. In a modified construction, the resistor consists of a carbon rod with a diametrical slot.
Patent GB-757188-A (GB)
Title: Improvements relating to the production of a protective coating of aluminium or its alloys on poppet valves
IPC: C23C2/16
Filed: 1954-11-10
Abstract: 757,188. Tinning; cleaning metal; fluxing. GENERAL MOTORS CORPORATION. Nov. 10, 1954 [Nov. 27, 1953], No. 32549/54. Class 82(2). Poppet valves are provided with an aluminium or aluminium alloy protective coating on the valve head by dipping into the molten coating metal and thereafter removing excess coating metal by a gaseous jet directed against the seating surface. The valve head is first dipped into a salt bath at 1280‹- 1400‹F. of a composition 37-57 KCl; 25-45 NaCl; 8-20 Na 3  AlF 6 ; 0À5-12 AlF 3 , all in parts per centum and then dipped in the coating metal (if aluminium alloy is used. A1 must comprise at least 80 per centum) for 5-10 seconds. A short rinse in the salt bath may follow to remove some of the excess coating metal; the salt bath in this case may float on the coating metal. The part is then gas blasted in the apparatus described below and air-cooled to below 800‹F., then water quenched. If the valve head is very dirty, it may be cleaned by dipping in a molten electrolytic salt bath at 900‹F., washed in water, and then pickled in a mixture of hydrofluoric, sulphuric and nitric acids in water. Alternatively, or in addition, degreasing solvents or grit or sand blasting may be resorted to. Parts not to be coated are treated by a stop-off comprising 20-50 per centum sodium silicate in aqueous solution. The gaseous blast is applied in an apparatus comprising a cylindrical casing 10 having secured therein two cylinders 22, 14 the former being screw-threaded to vary the distance apart of these cylinders, the gap forming an annular nozzle 30. The bottom cylinder 14 is secured to the outer casing 10 and provided with a gas inlet 40. A further gas inlet pipe 48 provides a blast on the end of the head of the valve, which is held in a clamp 54. Compressed air is supplied to the device at 75-110 1bs. sq. in. but other gases could be used.
Patent GB-737843-A (GB)
Title: Improvements in or relating to controlling the distribution of fluids in pipe-lines
IPC: B08B9/055
Filed: 1953-11-25
Abstract: 737,843. Controlling distribution of liquids. ESSO RESEARCH & ENGINEERING CO., [formerly STANDARD OIL DEVELOPMENT CO.]. Nov. 25, 1953 [Dec. 23, 1952], No. 32766/53. Class 21. [Also in Group XXVIII] In a pipe line 1 for conveying a series of different fluids separated from each other by a "go-devil" comprising cup-shaped, rubber discs Fig. 2 (not shown), mounted on a shaft, there is provided signalling means responsive to substantial variations in the pressure difference between two taps 2, 3 in the pipe line, and to indicate the passage of the "go-devil" between the taps so that an operator or an automatic mechanism manipulates valves to segregate one fluid from the. next by piping the fluids into appropriate branch lines leading to storage tanks. The taps are separated from each other by a distance equal to at least twice the length of the "go-devil". As shown, the pressure difference between the taps 2, 3 is transmitted hydraulically through connections 12, 13 to a mechanism 14 comprising an enclosed diaphragm 16 by which an electric control switch 15 is operated to energize a solenoid 22 and close contacts 23, 24 thereby setting off an alarm 30, e.g. an electric horn or signal light, the circuit being automatically or manually broken when required by a reset switch 25; alternatively, a battery, electric horn and a control switch in series may be used, the switch being adapted to complete the circuit upon impulse from the mechanism 14. Also, the device 30 may comprise a switching mechanism which automatically operates valves in the pipeline to pass consecutive batches of fluid into appropriate branch lines or eject the "go-devil" from the system, and the mechanism 14 may operate directly to open a valve in a compressed air line so as to blow a whistle upon passage of the "go-devil" between the taps 2, 3.
Patent GB-928922-A (GB)
Title: Improvements in or relating to transistorized pulse generators
IPC: H03K3/30
Filed: 1960-09-23
Abstract: 928,922. Transistor oscillator circuits. PHILIPS ELECTRICAL INDUSTRIES Ltd. Sept. 23, 1960 [Sept. 26, 1959], No. 32774/60. Class 40 (6). A pulse generator comprises a transistor having in its output current circuit an inductance which determines the rate of rise of output current and which provides positive feed-back, the circuit also including a winding on a square loop core which, when the output current exceeds a predetermined value, changes its state and initiates the cutting off of the transistor. In Fig. 1 two transistors 1 and 2 conduct alternately and are connected to an output transformer 5 which determines the rate of rise of current in the transistors when they become conducting and which provide feed-back to the opposite bases. A square loop core 10 is threaded by the emitter circuit leads so that when the current is such that the core changes its state a sudden reduction in the primary voltage of the transformer 3 takes place so that a reversal of the state of conduction of the transistors is initiated. This prevents the current spike which normally occurs at this point in the cycle. In Fig. 3 (not shown) the square loop core windings are arranged in the circuit connection between the right-hand terminal of battery 7 and winding 3. In Fig. 4 positive feed-back is provided by capacitors 11 and 12 and two square loop cores are provided, the resetting of the cords being effected by the opposite circuit through a coupling loop 17. A single ended circuit (Fig. 5, not shown) comprises an auto transformer positive feed-back path and a biasing winding connected to the supply source to re-set the square loop core when the transistor is not conducting. A further embodiment (Fig. 6, not shown) uses positive feed-back from a transformer connected in series with the secondary of the output transformer and the load and a square loop core winding in the emitter circuit biased by a permanent magnet to one state when the transistor is non-conducting. Appropriate biasing is applied to the transistor to ensure starting. It is stated that the square loop core winding could alternatively be arranged in the base circuit.
Patent GB-413361-A (GB)
Title: Apparatus for playing a golf game
IPC: A63F9/04
Filed: 1933-11-22
Abstract: 413,361. Games of chance. HARPER, E. J., Runnymede, Otley Road, Hawksworth, near Guiseley, Yorkshire. Nov. 22, 1933, No. 32956/32. [Class 132 (ii).] Apparatus for playing a golf game of chance comprises the combination with a chart having the lies marked in different colours of a plurality of differently coloured dice, each die being formed from a sphere with a plurality of flats thereon. A chart C representing a golf hole is in board form or made of foldable or rollable material, e.g. of rubber or rubber-faced for carrying in the pocket, and is coloured or printed to show Tee T, Fairway F, Rough R, Bunkers B, Green G and Hole H. A number of lines, circles or apertures A are provided for each player to receive the equivalent of a ball, e.g. movable disc, model of a player, flag, peg &c. The moves of the players are governed by the throw of a die D or of a plurality of dice which may be coloured and used according to the position of the movable disc &c. on the coloured chart. The die D is in the form of a sphere with a considerable number of flat faces D<1> bearing indications as to the position to which the movable disc &c. is to be moved. Each face of the die may bear two indications. The die may be moulded or fashioned from any convenient material and the rounded portions D<2> assist in the rolling operation. The lid of a box carrying the apparatus may form the chart. Reference has been directed by the Comptroller to Specification 391,190.
Patent GB-741220-A (GB)
Title: Handling of billets and the like
Inventor: YOUNG RICHARD WILFORD
IPC: B21B39/22
Filed: 1953-11-27
Abstract: 741,220. Rolling. MORGAN CONSTRUCTION CO. Nov. 27, 1953, No. 32964/53. Class 83 (4). [Also in Group XXX] A roller conveyer 12, Fig. 2, for handling long bars &c. in a rolling mill has a turnover and discard mechanism comprising manipulating arms 18, 19, 22 disposed along the conveyer length and mounted for movement on axes parallel to the conveyer direction. The arms 18, 19 are actuated through angles of approximately 90 degrees by hydraulic or pneumatic cylinders (not shown) which rotate shafts 20, 23. The arms 18 are keyed on to the shaft 20 and the arms 19 rotatable thereon and actuated from the shaft 23 through arms 24 and connecting-rods 25. The arms 22 are centrally pivoted on brackets 46 and are tilted to throw the bars &c. into the discard rack 21 by the engagement of the ends 40 of the arms 19 with projecting pins 49 on the arms 22. In operation bars conveyed to the rollers 12 by shuffle bars 13, 14 and to be discarded are lifted and thrown on to the arms 19, Fig. 10, by the arms 18. On lowering of the arms 18 the bars 50 rest on the arms 22 which are then tilted by the arms 18 to eject the bars. In turning over bars 50 they are lifted by the arm 18, Fig. 12, until the bars slide into engagement with steps 43 at the lower edge and tilt forward into engagement with the arms 19 at the upper edge. The arms 18 are then lowered again and as the steps 43 retract below the faces 38, Fig. 14, of the arms 18 the bar 50 slides back in the inverted position. Square section bars 52, Fig. 18, may be turned over by notches 37 on the arms 19 after being brought into position by the arms 18. For this purpose the arms 18 are raised until the bar slides into contact with the steps 43 and are then lowered so that the bars are left in a definite position on the conveyer. The bars may also be cammed into various positions on the conveyer rollers by other surfaces of the arms such as the surface 36, Fig. 17, of the arm 19, or the under-surface of the arm 18. Specification 662,730 is referred to.
Patent GB-773553-A (GB)
Title: An improved process for preparing a product suitable for insulation purposes, in the form of small pebbles of vesicular structure
IPC: C04B20/06
Filed: 1954-11-16
Abstract: In the production of insulating material in the form of pebbles having a vesicular structure by burning siliceous material, such as clays having bloating properties, in a rotary furnace, the latter is divided into two independently revoluble compartments, drying and preheating taking place in the first compartment, and the formation of pebbles by incipient melting in the second compartment which is rotated at a faster speed.  The angle of inclination of the compartments from the horizontal may also be varied, a typical example being 3 degrees for the first and 5 degrees for the second compartment.  Using clays, the first compartment may be rotated at 2-3 revs./min., the lower speeds being used for wetter clays, and the second compartment may be rotated at 4 1/2 -10 revs.-min., the higher syeeds being used where the clay has a sharper softening and wetting point.  The clay may be mixed with 2 per cent sulphite waste liquor as binder.
Patent GB-604874-A (GB)
Title: Improvements in or relating to the continuous manufacture of nitroglycerine and the like explosive liquid nitric esters
IPC: B01F5/10
Filed: 1945-12-07
Abstract: <PICT:0604874/IV(b)/1> Explosive liquid nitric esters, especially nitroglycerine, are manufactured from rapidly esterifiable liquid polyhydric alcohols by continuously introducing the alcohol and nitrating acid into a mixing space, subjecting the incipiently reacted mixture to continuous circulation by impelling it at a rate sufficient to maintain turbulence throughout the circulation out of the lower part of said space through a narrow externally cooled tubular conduit external to said space to a horizontally remote locus at which the reaction is complete and back into the upper part of said space, bleeding off a portion of the substantially completely reacted mixture at said remote locus and separating by continuous centrifugal action the liquid nitric ester from the bled-off portion while the latter is still in emulsion form.  Preferably, the explosive ester is then immediately emulsified in an aqueous washing medium.  In the Figure, 1 is the mixing vessel, 2 the rotating impeller, 3 the outgoing portion of the jacketed external reaction pipe and 4 a return portion thereof.  5 is a bleed-off pipe and 6 a centrifugal separator, 7 is a pipe in which the separated liquid explosive is delivered through an outflow pipe 15 in water delivered from the jet 16 to a washing tank.  8 is a refuse acid outflow pipe and 18 an overflow gutter.  10 is a concrete-lined trench, 11 a concrete explosion baffle and 12 a concrete shielding structure.
Patent GB-1507320-A (GB)
Title: Manufacture of dimethylaminobenzene compounds
IPC: C07C211/48
Filed: 1975-08-08
Abstract: 1507320 Manufacture of dimethylaminobenzenes BASF AG 8 Aug 1975 [10 Aug 1974 16 Nov 1974] 33141/75 Addition to 1462258 Heading C2C The invention comprises a process for the manufacture of compounds of Formula I wherein individual radicals R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> are independently halogen, optionally substituted aliphatic or aromatic hydrocarbon radical -SO 3 R<SP>4</SP>, SO 2 N(R<SP>4</SP>) 2 , SO 2 R<SP>4</SP>, SO 2 NHCOR<SP>4</SP>, OR<SP>4</SP>, COR<SP>4</SP>, NHCOR<SP>4</SP> wherein R<SP>4</SP> is an optionally substituted aliphatic hydrocarbon radical, and the individual radicals R<SP>2</SP> and R<SP>3</SP> may also be independently hydrogen, phenoxy or -CO 2 R<SP>5</SP>, R<SP>5</SP> being an optionally substituted aliphatic, cycloaliphatic, araliphatic or aromatic hydrocarbon radical, and adjacent radicals R<SP>3</SP> or R<SP>1</SP> and an adjacent radical R<SP>3</SP> may also, together with the two carbon atoms linking them, form a fused heterocyclic radical, wherein a nitrobenzene of Formula II in which R<SP>1</SP>, R<SP>2</SP>, and R<SP>3</SP> are as defined above is reacted with formaldehyde and hydrogen in the presence of a hydrogenation catalyst containing one or more metals of atomic number 24 to 29 and of a weak organic acid at 35‹ to 150‹ C. and a pressure of at least 40 atmospheres.
Patent GB-1158466-A (GB)
Title: An apparatus for the Conveyance of Magnetic Objects
Inventor: SPODIG HEINRICH
IPC: B65G54/02
Filed: 1966-07-23
Abstract: 1,158,466. Endless conveyers. H. SPODIG. 23 July, 1966, No. 33225/66. Heading B8A. A conveyer comprises members M carrying magnets 18, disposed at intervals between spaced endless chains (10), (11), Figs. 1 and 2, not shown). Movement of the chains thus results in transference of objects along a surface 3 of a casing 1. Objects may also be conveyed along the lower side (4) of the casing by the action of the lower run of the chain. The objects may carry along with themselves iron filings mixed in liquid. The latter is able to drain into a gutter 15. Alternatively (Figs. 4, 5, not shown) the surface 3 may comprise a central ridge. Various arrangements of magnets 18 are possible (Figs. 8-13, not shown). The conveyer may have runs disposed at an angle to one another and arranged for insertion through an aperture of a machine bed (Figs. 15 and 16, not shown).