baber/WOPTO huggingface dataset:
Patent GB-376299-A (GB)
Title: Method of making hard alloys for cutting tools
IPC: C22C1/05
Filed: 1931-03-25
Abstract: Tantalum carbide may be made by preheating lampblack or charcoal in a closed graphite crucible to 1500 DEG  C. to remove organic impurities and gases, mixing it with tantalum powder in about the proportion of 5-6,2 per cent of carbon and 93,8-95 per cent of tantalum, and slowly heating the mixture in a highfrequency furnace to about 2000 DEG  C. The product is ground and heated to 1600-1700 DEG  C. in a vacuum furnace.ALSO:In the production of alloys by pressing and heat treatment of a powdered mixture of a refractory metal such as tantalum, niobium, molybdenum, or tungsten, a non-metal such as carbon or boron, and a metal of the iron group, the heat treatment of the compound of the refractory metal and the non-metal prior to admixture with the iron-group metal, or of the final mixture, or both, is carried out in a vacuum to degasefy the product and prevent the absorption of oxygen.  The mixture may be pressed cold at a pressure of several tons per square inch before the heat treatment in a vacuum.  For example tantalum carbide may be made by preheating lampblack or charcoal in a closed graphite crucible to 1500 DEG  C. to remove organic impurities and gases, mixing it with tantalum powder in about the proportion of 5-6,2 per cent of carbon and 93,8-95 per cent of tantalum, and slowly heating the mixture in a high-frequency furnace to about 2000 DEG  C.  The product is ground and heated to 1600-1700 DEG  C. in a vacuum furnace, and is then mixed with 3-15 per cent of hydrogen-reduced nickel powder, or a mixture of nickel and iron, and again ground, pressed, and heated in a vacuum.
Patent GB-1156300-A (GB)
Title: Improved Block Copolymers
Inventor: HAEFELE WALTER RICHARD
IPC: C08F297/04
Filed: 1968-02-26
Abstract: 1,156,300. Four-block copolymers. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 26 Feb., 1968 [28 Feb., 1967], No. 9163/68. Heading C3P. A block copolymer has the configuration A-B-A-C, wherein each A is a thermoplastic polymer block of a vinyl substituted aromatic hydrocarbon, having a molecular weight of 4000 to 20,000, B is an elastomeric polymer block of a conjugated diene, having an average molecular weight of 5000 to 200,000 and C is a terminal group comprising one or more polymerized units of a polar compound selected from monovinyl pyridines and quinolines, acrylic and methacrylic acid esters, acrylonitrile and methacrylonitrile, acrylamide and substituted acrylamides. Block copolymers in which the terminal groups C are derived from vinyl pyridines may be in the form of their hydrochlorides. The copolymers are obtained by conventional sequential polymerization in the presence of a lithium alkyl compound and an inert hydrocarbon. In the examples, block copolymers are prepared using sec. butyl lithium in cyclohexane of the configuration polystyrenepolybutadiene - polystyrene - poly - (2 - vinylpyridine), including hydrochlorinated block copolymers and block copolymers containing only one unit of the 2-vinyl pyridine.
Patent GB-453567-A (GB)
Title: Improvements in mechanical fuzes for projectiles
IPC: F42C9/14
Filed: 1936-03-30
Abstract: 453,567. Projectile fuzes. MEFINA SOC. ANON., Binningen, Switzerland. March 30, 1936, No. 9383. Convention date, March 31, 1935. [Class 9 (i)] A combined time and percussion fuze comprises in combination a direct-action percussion fuze 15 in the nose of the fuze body, a clockwork 5, and a main ignition device comprising a primer 8 in a movable pellet 19 adapted to operate by momentum on impact and a hammer 7 having a piston 7<a> adapted to be operated either by a spring striker 6 released bv the clockwork or by the gases from the direct action percussion fuze, a safety device 9 being provided for preventing premature action of the main ignition device. This safety device 9 comprises one or more bolts adapted to move out by centrifugal force under control of a small auxiliary clockwork 10 and to release a distance pin 21 to liberate the momentum pellet 19 which remains under the restraint of a weak spring 20. The gases from the direct-action percussion fuze are led around the clockwork to the piston 7a by passages 17, 18. The clockwork is provided with a timing key 3 attached to a cap 2 and held in place by spring segments 4. The nose percussion fuze is inserted in the key and retained therein by flexible tongues 16. This fuze comprises a fixed priming 11 and a movable hammer 12 held at safe by centrifugal segments 13.
Patent GB-1018863-A (GB)
Title: Frequency analyser
IPC: G01R23/02
Filed: 1963-03-08
Abstract: 1,018,863. Frequency analysis; voltage measurement H. VAN GOGH. March 8, 1963 [March 8, 1962], No. 9389/63. Heading G1U. [Also in Division H3] A frequency analyser of particular use for medical purposes comprises filter arrangements for deriving from an input signal a plurality of component signals each having a different frequency range, a plurality of styli each controlled by one of the component signals for recording the instantaneous value thereof, cyclically operative arrangements for integrating the values of each component signal through predetermined periods, and means for recording the integrals after each period, characterised in that each integral is recorded by superposing an alternating recording voltage of constant amplitude on the associated, component signal for a time proportional to the related integral value, the frequency of the recording voltage for a particular stylus being higher than the frequencies of the associated component signal. A suitable circuit for enabling such a record to be made consists, for each frequency component of the input signal, of stages including the valves V1-V4 for selecting the frequency and stages including the valves V5-V10 for integrating the amplitude of the selected component and for generating a superposing signal of which the duration is proportional to the integral. The input signal is fed to the terminal K1, and the components C1R1, C2R2 are so chosen that only for the frequency required in the channel is feedback in the correct phase obtained from V3 to V1 through the components C3R3. This frequency component is amplified by V4 and fed to the recorder SV and the grid of V5, where it is amplified. The signal is rectified through V6 and the direct current so obtained is used to charge the large condenser C4. At periodic intervals the condenser C4 is discharged by the switch S operated from a timing device. This generates an impulse whose amplitude is related to the charge acquired by C4. This impulse controls the stage V7 and consequently the cathode potential of the cathode follower V8 which in turn controls the cathode potential of V9. A rise of potential at V9 cathode cuts off the valve until it is brought back into 'conduction by the charging of condenser C6 through the potentiometer P and the resistor R10. This time is therefore proportional to the charge held on the condenser C4. When V9 is cut off its anode voltage is high, and this is used to control the valve V10. When this conducts a voltage at mains frequency applied at the terminal K4 is passed to the recorder SV to superpose this on the signal being recorded, for a time proportional to the integrated amplitude of the signals recorded in the previous time cycle.
Patent GB-943319-A (GB)
Title: Disintegrating mill
Inventor: MEGER ALFRED FRANK
IPC: B02C13/20
Filed: 1962-03-12
Abstract: 943,319. Impact pulverizers. J. M. J. INDUSTRIES Ltd. March 12, 1962, No. 9448/62. Heading B2A. A disintegrating mill comprises a pair of spaced rotors 50, 51, Fig. 4, each having pairs of radially-spaced annular rows of impact members 55, 57 or 65, 67 projecting from it towards the other rotor, with the rows of one rotor alternating with the rows of the other rotor and each impact member consisting of a mounting member 120, Fig. 14, and a wear member 125. The rotors 50, 51, Fig. 4, are driven in opposite directions by shafts 53, 47 in bearings 54, 54<SP>1</SP>. The impact members 55, 67 projecting from their respective rotors 50, 51 are provided at their outer ends with rings 56, 68 received in annular recesses in the other rotor ; the impact members 57 of the rotor 50 terminate in a ring 58 disposed around the rotor 51 and the impact members 65 of the rotor 51 serve also to connect the rotor and shaft 53. As shown in Fig. 3, the rotors are disposed within a casing 35 provided with a central inlet which is fed by a shoot 37 from a bin 38, the rate of feed being controlled by a feeder 40 which extends through a sealed opening at the bottom of the bin. A by-pass 45 serves to relieve air pressure within the casing and vanes 49, which are mounted on the rotor 50 provide a suction at a seal 48 which is disposed around the shaft 47. The wear members 125 of the impact members are provided on the leading faces of the mounting members 120, and these bars may be of semicircular, triangular, square, trapezoidal or angled cross-section, the dimensions of which are such that the wear members have a thickness, measured perpendicular to the leading surface, which is less than half the overall thickness of the wear member and associated mounting member. The radiallyinward surface of the wear members may be arranged to make an angle within the range of 90 to 135 degrees as shown in Fig. 15, and the leading surface within the angles 30 and 15 degrees ; no part of the mounting members extends radially inwardly of the plane containing the radial-inward surface of the wear member. The wear plate 125, Fig. 14, is secured to the trapezoidal-section bar 120 by locking pins 126 and a key 127, and the wear plate 105<SP>1</SP>, Fig. 12, is secured to the angle-section bar 106<SP>1</SP> by stud means 110.
Patent GB-215167-A (GB)
Title: Improvements in and relating to lappet weaving looms and the like
IPC: D03D41/00
Filed: 1923-04-06
Abstract: 215,167. Liver, H., and Liver, S. April 6,1923. Lappet looms.- A " motion " is mounted upon the lappet wheel 4 itself so as periodically to place the lappet wheel out of action for a certain number of picks whereby a greater distance between the repeat of a pattern in the longitudinal direction of the cloth is obtained. For this purpose, a small wheel 1 having ratchet teeth 2 and furnished with a pawl or friction spring 9 is mounted on a pin 3 on the lappet wheel, which is normally rotated step by step by a pawl 5, until it reaches a certain position, whereupon the teeth 2 prevent engagement with the teeth 6 of the lappet wheel. The latter then ceases to rotate, and the wheel 1 rotates until a notch 8 comes into position opposite the pawl 5 and' allows this to engage and rotate the lappet wheel. The auxiliary wheel may have several teeth completely cut away, a cam &c. on the auxiliary wheel causing a pin &c. to project radially from the lappet wheel after a certain time into the path of the feed pawl. The application of the invention to a lappet wheel having teeth of varying lengths is described. several auxiliary wheels may be mounted on the lappet wheel. The application of the invention to a lappet wheel having lappet fingers &c. mounted horizontally and oscillating between the two sides of cam grooves is described.
Patent GB-232247-A (GB)
Title: Improvements in or relating to pneumatic tires
IPC: B60C9/06
Filed: 1925-04-09
Abstract: 232,247. Goodrich Co., B. F., (Assignees of Renner, I. R.). April 14, 1924, [Convention date]. Jackets and covers.-A tyre casing, shaped and vulcanized in flat oval cross-sectional form, comprises oppositelybiased layers of cord &c. fabric, the normal angle of bias in the layers being such that the tread angle of the cords in the finished tyre is less than 40‹. The Figure shows a section of a tyre of this form built up from endless bands 12 of cord fabric having a normal bias-angle of 35‹. When shaped to tyre form, the distortion results in the tread angle of the cords being 33‹ increasing to 55‹ at the edges. It is stated that owing to this acute bias angle of the cords the normal radial depth of the tyre will be, at least, maintained on inflation. The tread mav be flat, as shown, or slightly curved, and the usual breaker strips 14 may be embodied.
Patent GB-233123-A (GB)
Title: Improvements relating to locks and latches
IPC: E05B37/00
Filed: 1924-04-15
Abstract: 233,123. Leitch, J. L. F. April 15, 1924. Locks, permutation.-A combination lock of the type in which the locking discs are set by setting discs, has a pair of superimposed discs normally connected by pins, but which can slide one on the other to release the bolt when the discs are set to align breaks in the pins with the surfaces of the block so that they can slide. The invention is shown applied to a night latch, the bolt of which is withdrawn by sliding the block 15 by means of the finger piece 15<b>, the rod 15<a> being connected to the bolt. Before the block 15 can be slid, the breaks between the pairs of pins 13, 10 must be aligned with the contacting surfaces of the sliding block 15 and the fixed block 12. The pins are correctly adjusted by turning wheels 7 which have irregular peripheries and are eccentrically pivoted on a shaft 8, a definite position of each wheel lifting each pin 10 the correct amount. The wheels 7 are normally held in a " zero " position by springs 24 coiled round the shaft 8. The wheels 7 are set by turning the milled discs 1 mounted on the shaft 2 and protruding through the casing 3, these discs and the wheels 7 each carrying a pulley over which travels the band 6 which bears the characters indicating the combination. The discs 1 are turned until certain characters on the bands are visible through gaps 9 in the casing. The wheels 7 have then each been rotated to the correct position for aligning the breaks in the pins 13, 10 for allowing the block 15 to slide to release the bolt. Pawls 20 pivoted on a shaft 22 engage ratchet wheels 21 on the wheels 7 to prevent these being brought to " zero " position by the springs 24 during setting. When the block 15 is moved to withdraw the bolt, an arm on the member 15a carrying cams 23 causes these cams to release the pawls 20 from the ratchet wheels 21 by engaging the tails 20a of the pawls, so allowing the springs 24 to return the wheels 7 to the " zero " position, scattering the combination. The block 12 can be removed for interchanging the pins 10 for changing the combination. These pins may be set so that the breaks of some of them are normally in correct position for sliding the block 15, so that if these are moved by an unauthorized person attempting to pick the lock re-locking is effected.
Patent GB-281153-A (GB)
Title: An improved vessel for use in the boiling or cooking of meats, hams or the like
IPC: A47J27/20
Filed: 1926-12-18
Abstract: 281,153. McNaughton, J. A. Dec. 18, 1926. Heating and cooking vessels.-In a vessel for pressing and cooking hams &c., the cross bar 10 has a centrally arranged pin 13 sliding in a slot 12 in a lug upstanding from the pressing-plate 6, compression springs 8 being interposed between the plate 6 and the cross bar which has toothed flaps 14 pivoted thereto engageable with lugs 17 on the sides of the vessel. The flaps are wide to present a large bearing surface to the lugs 17. The springs 8 are positioned by lugs 7, 9 on the plate 6 and bar 10. A number of false bottoms 4 having legs 5 of various lengths to suit various sizes of hams are provided. The bottom 2 of the vessel is apertured to receive a disc 3 which is pressed in from the outside to facilitate removal of the ham.
Patent GB-927047-A (GB)
Title: Improvements in and relating to machinery for punching metal strip
IPC: B23D27/00
Filed: 1960-03-18
Abstract: 927,047. Shearing. V. S. TALBOT. March 6, 1961 [March 18, 1960], No. 9782/60. Class 83 (4). A shearing machine comprises two intermeshing screw profiles each rotating about its axis so that a strip of material inserted between them is drawn through and pierced as the screws rotate. Two single or multi-start squarethread screws 13 and 14 are supported in bearings 1 and driven in synchronism by gears. Strip 9 is fed from a coil 7 between rollers 3 and through the screws 13 and 14 where it is slit and portions 10 and 11 are bowed out. The bowed portions may be pressed back into the plane of the strip by rolls 4 and the flattened strip coiled on a spindle 6. The slits 18 formed in the strip may extend to one edge. The strip may be rolled along its two edges to form a gap between the slits.
Patent GB-565618-A (GB)
Title: Improvements in or relating to travelling grates
IPC: F23H11/10
Filed: 1943-06-18
Abstract: 565,618. Travelling grates. INTERNATIONAL COMBUSTION, Ltd., and WRAY, J. W. June 18, 1943, No. 9822. [Class 51 (i)] In a travelling grate having pivoted bars a arranged transversely to the. direction of travel so as to present a louvre-like construction, the air for combustion in passing through the grate is caused to follow a zig-zag or sinuous path by providing on one or both sides of the bars zig-zag or sinuous projections,. as shown in Figs. 6 and 7. The upper ends of the ribs are chamfered as shown at a<5>, Fig. 1. Pockets a<3> for the reception of ash are provided on the fuel surfaces. The ends of the bars are provided with sloping faces as shown at a<4> in Figs. 2 and 5.
Patent GB-115732-A (GB)
Title: A Device for use in Rolling Barrels and the like.
Inventor: MCKENZIE NORMAN
IPC: B65G7/10
Filed: 1917-07-07
Abstract: 115,732. McKenzie, N. July 7, 1917. Rolling - appliances.-A device for rolling barrels &c. comprises a frame A with depending portions a, a', a pivoted member D adjusted by the operating-lever E and handle E<1>, a handle C which is fixed crosswise, and a number of rollers or wheels B, G, D' to engage with the barrel &c. The pins d<2> are engaged by the slot-holes f in the frame enlargements F, and the pivoted member D is locked in position when adjusted by the notches f<1> in the slotted frame portion. Instead of a handle, an eye or a rope may be provided.
Patent GB-314922-A (GB)
Title: Gramophone volume control
IPC: H04R1/38
Filed: 1928-04-02
Abstract: 314,922. Garton, A. J., and Adey, H. W. April 2, 1928. Dampers for sound modifying.-Means for controlling the volume of sound by adjusting the grip of a damping device on the stylus-bar comprises a strip 5 one end 1 of which is shaped for connection to the sound-box 4, the other end 6 being of C-spring form and carrying a pair of fingers 7 the grip of which on the stylus-bar 8 is varied, as by means of a Bowden-wire device 10 controlled by a screw. Cushioning material 3, 13 is preferably provided between the member 1 and the soundbox and between the fingers 7 and the stylusbar. The device is preferably made in the form of an integral sheet-metal unit.
Patent GB-1008448-A (GB)
Title: Improvements relating to floats for use by fishermen
IPC: A01K93/00
Filed: 1963-03-13
Abstract: 1,008,448. Fishing floats. J. CHAPLAIN. March 10, 1964 [March 13, 1963], No. 9843/63. Heading AlA. A fishing float for use with a line comprises a buyant part 2 having rods 3, 6 extending from it and is characterized in that the lower rod 6 is joined to the centre part 2 by a screw thread 7. The lower rod 6 has a hole 9 for the line and it is stated that different buoyant parts may be secured to the lower rod 6 without detaching it from the line. The upper rod 3 may also be detachably connected to the buoyant part 2.
Patent GB-308810-A (GB)
Title: Improvements in or relating to digging and loading machines for manure, and like materials or for excavating
IPC: E02F3/04
Filed: 1929-03-27
Abstract: 308,810. Rass, H. March 27, 1929. [A Specification was laid open to inspection under Sect. 91 of the Acts, April 1, 1929]. Discharging, throw-off, and feeding- devices for endless-chain conveyers and elevators.-In a machine for digging and loading manure, sand, gravel, &c. comprising a portable framework carrying a digger which is moved downwards into the material under its own weight and then substantially horizontally to bring the material to a conveyer, the movements of the digger are effected by pivoting its arm on a slide block reciprocated on a guide by means of a crank, a second crank engaging the arm at pre.- determined points to lift the digger. The frame a carries a motor a<1> which, through a shaft a<2> and gearing, drives a shaft b<2>; the shaft b<2> drives the conveyer n through a chain l and also, through a clutch and a chain c, drives a shaft c<2> provided at each end with cranks e<2> by which frames h are reciprocated on slides g. Arms i<1>, carrying the digging tools i<2>, are pivoted at i to the frames h; pins f, Fig. 5, are arranged within the cranks e<2> and have heads engaging cam grooves whereby the pins are moved axially, these pins engaging rearward extensions of the arms i<1> to raise the digging tools during their forward motion and then releasing the tools which dig into the manure &c. and move the latter towards the conveyer on the return stroke. A stop limits the fall of the tools. The slides g are pivoted about the shaft c<2> and connected to an arm connected through a cable r<1> to a winch which is operated through ratchet mechanism to lower the digging apparatus between strokes; a band brake, applied by an adjustable weight u<2>, controls the winch. When the digging tools reach ground level, the driving clutch therefor is automatically disengaged. The conveyer delivers to an adjustable shoot q provided with a distributor p<2> which is oscillated by means of a connecting rod p<1> and a cam p.
Patent GB-1347901-A (GB)
Title: Magnetic devices
IPC: G11C19/08
Filed: 1971-04-19
Abstract: 1347901 Magnetic storage arrangements WESTERN ELECTRIC CO Inc 19 April 1971 [20 April 1970] 9877/71 Heading H3B [Also in Division H1] A bubble domain memory device comprises a body of ferrimagnetic rare earth iron garnet material capable of showing uniaxial magnetic anisotopy and capable of supporting local enclosed regions of magnetic polarization opposite to that of the immediately surrounding material, means for positioning the oppositely polarized local regions so as to form single wall domains having a magnetic polarization opposite to that of the surround material, and means for propagating the domains through at least a part of the body, and in which the dodecahedral sites of the material are occupied by at least 2 ions of Sm, Gd, Dy, Mo, Er, Tm, Eu, Tb, Yb, Cu and Y so that the magnetostriction in the <111> direction is reduced. The <111> magnetostriction, and also the <100> magnetostriction, may be reduced to zero. The magnetic moment may also be reduced by substitution of non-magnetic ions of Ga, Al, V, Si or Ge in tetrahedral sites. Tetrahedral and octahedral sites may also be substituted by Mn<SP>3+</SP>, Co<SP>3</SP><SP>+</SP> or Co<SP>2+</SP>. Decrease in domain mobility may be minimized by further substitution by ions having orbital angular momentum. Exemplified garnets are Er 2 TbAlFe 4 O 12 ; Er 2 TbAl 1À1 Fe 3À9 O 12 ; Gd 2À34 Tb 0À66 Fe 5 O 12 ; Gd 2À33 Tb 0À58 Eu 0À09 Fe 5 O 12  and Gd 2À25 Tb 0À6 Eu 0À15 Fe 5 O 12 . The operation of a bubble domain device using these garnets is described (see Specification 1,347,902).