baber/WOPTO huggingface dataset:
Patent GB-619313-A (GB)
Title: Improvements in or relating to well drilling
IPC: E21B1/02
Filed: 1946-12-02
Abstract: 619,313. Well-drilling. KENDRICK, J. F. Dec. 2, 1946, No. 35657. [Class 85] [Also in Group XXIV] In well drilling apparatus wherein the drilling tool is carried by an elongated elastic element, such as a cable, reciprocated by crank - operated mechanism, the crank has a wrist pin of variable throw and means are provided for varying the throw during the operation of the drill ; the stroke may thereby be reduced while the speed is increased through zones of vibrational resonance. In Fig. 5, the wrist pin 4 is slidable in ways 14, 15, in the crank 3 and is adjusted by a screw 16 rotated through gearing 19 by a reversible electric motor 20 mounted on the crank and connected to brushes 22 engaging stationary contact rings 24 to which power is supplied through a magnetic contactor 26 controlled by a two button switch 27. In Fig. 7, 8a and 8c, gears 28, 29, are keyed to the screw 16, gear 28 engaging a gear 30 directly, and gear 29 being connected to a gear 32 through an idler 34 ; gears 30, 32, have outwardly and inwardly facing brake drums 31, 33, respectively. A brake sleeve 35, Fig. 8a is supported on the crank hub and held stationary by pins 42 engaging a ring 43 carried by a bracket 44 ; the sleeve 35 has a flange 36 projecting between the gears 30, 32, and provided with radial grooves in which slide cross-heads 36a with oppositely projecting segmental brake members 37, 38, adapted to engage the drums 31, 33 respectively, whereby the respective gear 30, 32, is held and the screw 16 is therefore rotated on rotation of the crank. The cross-heads 36a are moved radially by means of an oscillatable sleeve 45a, Fig. 8c, supported on the sleeve 35, lateral spiral flanges 46 engaging slots 39 in the cross heads. In Fig. 9, the wrist pin 4 is secured to the rod 51 of a piston 50 movable in a cylinder 49 secured to the crank, fluid being supplied to either end of the cylinder through a fixed ring 63 supported on the crank hub. In Fig. 1, the crank 3 oscillates a walking beam 6 carrying a hydraulic feed cylinder 7, the piston of which adjustably supports the drilling tool through a clamp and cables or chains 14 ; shields hold the cables &c. 14 in engagement with pulleys 15. In Fig. 2, the crank 3 acts through a pitman 5a to oscillate a spudder arm 11 over the end of which the drilling cable 9a passes.
Patent GB-1202739-A (GB)
Title: Production of useful carbon aggregates
IPC: C04B35/52
Filed: 1967-10-05
Abstract: 1,202,739. Carbon electrodes. GREAT LAKES CARBON CORP. 5 Oct., 1967 [19 Oct., 1966], No. 35693/69. Divided out of 1,202,738. Heading CIA. [Also in Division C5] A carbon electrode is produced from a " non- puffing" " petroleum coke, defined as a coke which when calcined, mixed with a binder, and then baked to 1000‹ C. exhibits no measurable abnormal thermal expansion on graphitizing, by heating such coke in a non-oxidizing atmosphere to a temp. of at least 2000‹ C., cooling the heated coke to a temp. less than 200‹ C., e.g. ambient temp., forming a filler comprising at least 20% by weight of the cooled product having a particle size greater than 35 mesh Tyler, the remainder being, for example, petroleum coke flow, and mixing this filler with a carbonaceous binder, e.g. pitch, shaping into an article, and then heating this article at a temp. of at least 500‹ C. to carbonize the binder. Preferably, the filler contains 20-70% by weight of the cooled treated coke, which coke may have a particle size greater than 6 mesh and smaller than ¥ of an inch but which is preferably less than ¢ inch. The product may be obtained as a graphite body by heating to a temp. of at least 2000‹ C. in the final step. The product may be a cylindrical graphite body having a minimum diameter of 14 inches and a minimum length of 5 feet.
Patent GB-749565-A (GB)
Title: Type bar action
IPC: B41J23/12
Filed: 1953-12-23
Abstract: 749,565. Typewriters. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 23, 1953 [Dec. 26, 1952], No. 35729/53. Class 100 (4). In a power-driven typewriter having type-bar action, normal depression of a key produces a single impression but further depression causes repeated impressions. Normal depression of a key lever 2 acts through an operating lug 30, key ear 31 or an actuating plate 6 to cause a cam 5 tc rotate about a stud 16 and engage with a power roll 20 so that a crank-arm 4 is driven. to actuate the type bar in the usual way. The positive drive of the crank arm 4 continues until a tail piece 21 on the cam 5 engages a control stop 22 and slides along its surface, thus stopping the positive drive so that the type-bar strikes under its own momentum. When the cam 5 disengages from the roll 20 a spring 17 restores it counterclockwise and the ear 31 engages the front edge 37 of the lug 30 to prevent further actuation of the type-bar, the plate 6 being forced to rotate and slide about a pin 23 against the action of a spring 25 which, however, restores the plate 6 as soon as the key bar 2 rises and the lug 30 disengages. The key bars 2 slide in slots 34 of a comb 33, Fig. 2. and their normal depression is stopped by an abutment member 44 sliding on rails 50, 51 and supported by a spring 42. Repeated actuations of a typebar for underscore, spacing or back-spacing, are effected by extra depression of the key-bar against the spring 42 thus positioning a repeat lug 52, Fig. 4, to engage the ear 31 before it contacts the lug 30 as the cam 5 restores, thus providing a force through the plate 6 to again rotate the cam 5 about the pin 16 and thus engage it with the roll 20 for repeated actuation of the type-bar. The repeated actuation continues until the key lever is released.
Patent GB-353811-A (GB)
Title: Improvements in or relating to inflatable body attachments for providing buoyancy
IPC: B63C9/125
Filed: 1930-11-27
Abstract: 353,811. Inflatable body attachments. LEADER, S. A., 18, Lonsdale Gardens, IIford, Essex. Nov. 27, 1930, No. 35753. [Class 77.] An inflatable body attachment is divided into a plurality of compartments A that can be inflated from a common compressed gas capsule F<2> through n o n - return valves C. As shown, in an ordinary waistcoat two layers of rubber-proofed material are employed. The metal capsule F<2> is broken to release the gas, or may be punctured by a sharp plunger. A spare capsule and set of tubes and valves may be provided.
Patent GB-806608-A (GB)
Title: Method of producing bright surfaces on aluminium and aluminium alloys
IPC: C23F3/03
Filed: 1955-12-13
Abstract: Aluminium of purity 99.85 per cent or higher and alloys consisting of Al of a similar purity with up to 2.7 per cent Mg are surface brightened by treating for 8 to 30 seconds at between 40 DEG  and 90 DEG C. with a solution containing 1.2 to 9.5 per cent by weight of nitric acid, 2 to 14 per cent by weight of hydrofluoric acid, and 0.025 to 0.2 per cent by weight of Pb ions in the form of soluble Pb salts, the remainder being water.  An inhibitor such as gum arabic may also be present in amount 0.4 to 2 per cent by weight, whilst the Pb may be added as the nitrate of fluoride. The preferred solution contains 4.35 per cent nitric acid, 7 per cent hydrofluoric acid, 0.125 per cent Pb ion and 1 per cent gum arabic.  The treated surface may be subsequently oxidized chemically or electrolytically for protection, or be coloured. Specifications 693,776, 693,876 and 738,711 are referred to.
Patent GB-784328-A (GB)
Title: Improvements in or relating to photo-electric machine guards
Inventor: BECKLEY WILLIAM HERBERT
IPC: F16P3/14
Filed: 1954-12-10
Abstract: 784,328. Photo-electric protective devices. GENERAL ELECTRIC CO., Ltd. Dec. 9, 1955 [Dec. 10, 1954], No. 35835/54. Class 40 (3). A photo-electric machine guard arranged to prevent the machine being operated when any part of the operator's person is in danger comprises light curtains arranged to extend outwardly in front of the machine both above and below the danger zone, the machine being rendered inoperative only if both light curtains are interrupted. As described each curtain 2 comprises a plurality of beams of light arranged in a substantially flat horizontal plane extending outwardly from a point just in front of the machine. Each of the beams originates at a light source in support-member 4 on one side of the forward extension of the danger zone and is directed on to a photo-sensitive device in support-member 5 on the other side. The curtains are not necessarily parallel but may be flat or curved planes approaching each other in the direction away from the machine. The guard of the present invention is preferable to the provision of a vertical guard curtain immediately in front of the machine as described in Specification 717,399, where the work projects from the front of the machine. In the case of a machine operating on a projecting sheet of material movement of the sheet to interrupt either the upper or lower curtain of the guard according to the present invention does not stop the machine but interruption of both curtains by the operator's body does so. It may be arranged that the outermost light beam of one of the curtains acts as a master and that interruption of this beam alone renders the machine inoperative. In order that the operator may be reasonably near the machine when it has completed an operation the movement of the machine may progressively switch out of circuit the photo-cells associated with the parts of the curtains furthest from the machine. Guards according to the present invention and also as described in Specification 717,399 may be provided on the same machine and a changeover switch provided so that the operator may choose which is in use. Means as described in Specification 664,797 and 717,399 may be provided for checking the operation of the safety arrangements.
Patent GB-875256-A (GB)
Title: A pilot valve controlled pressure regulating valve
IPC: G05D16/16
Filed: 1957-11-18
Abstract: 875,256. Fluid-pressure servomotor control systems. CLAUSEN, M., [trading as DANFOSS VED INGENIOR MADS CLAUSEN]. Nov. 18, 1957 [Dec. 24, 1956], No. 35853/57. Class 135. A fluid-pressure servomotor control system for regulating the suction in a line 4, Fig. 1, from the evaporator of a refrigeration plant to maintain the temperature in the evaporator at a desired fixed value, comprises a pressureregulating valve 1, having a valve member 12, Fig. 2, connected by a rod 11 to a spring-loaded servomotor piston 7 and a spring-loaded pilot valve 2, adjustable to adjust the operating temperature, fitted in an equalizing pipe 3 connecting the line 4 to the space above the servomotor piston. Depending upon the suction in the line 4 the pilot valve 2 more or less opens to adjust the position of the servomotor piston 7 which has a restricted opening 16 therethrough to the valve outlet 15 to re-establish balance between the gas pressure in the plant and the servomotor loading spring. To prevent undue oscillating of the valve member 12 when the pressure difference on the two sides of the valve member is large, i.e. at small valve openings, a cylindrical part 18 having a radial distance between it and the valve seat sleeve 13 less than or equal to the axial length of the part 18 is fitted on the outlet face of the valve member. To further increase the effectiveness of the part 18, its outer end 20 may be coned. To avoid oscillations at low-pressure differences on the two sides of the valve member, a non-return valve comprising a leaf spring 21 may be fitted to open the outlet end 8 of the equalizing pipe 3 when the suction has attained a predetermined value. The leaf spring prevents mechanical oscillations of the servo-piston being fed back through the pipe 3 and restricts the space above the piston to avoid fluctuating gas pressures. The spring-loaded pilot valve 2 may be replaced by either thermostatically or electrically operated valves and may be fitted in the regulating valve housing.
Patent GB-439660-A (GB)
Title: Improvements in and relating to surfaces adapted to receive printed, typed or drawn characters or the like
IPC: B41B13/06
Filed: 1934-12-14
Abstract: 439,660. Drawing-appliances; manuscript books. SPIELVOGEL, J., 24, Commerce Street, Newark, New Jersey, U.S.A. Dec. 14, 1934, No. 35994. Convention date, Dec. 14, 1933. [Classes 11 and 16] [See also Groups XVI and XX] A character-receiving medium comprises a sheet of material which is stretchable and contractible in one direction only so that the configuration and/or dimensions of characters, illustrations, &c. which are to be impressed, drawn, or similarly applied on the sheet and /or their relative positions thereon may be varied by elongating or contracting the sheet. The invention is particularly applicable to justifying typewritten, typeset, or drawn letters for reproduction by photographic or other processes, and the characterreceiving medium 15 comprises a flat unstretchable portion 16 and a stretchable portion 17 integral therewith and corrugated transversely so as to be stretchable or contractible longitudinally without transverse deformation of the characters. When the latter are typed on the sheet 15, which is preferably of thin paper or other translucent material, the corrugations are flattened by the impact of the keys, and stretching takes place primarily in the spaces between the letters. The sheet 15 is divided by slits 21 into line strips and the whole is preferably attached to a supporting sheet 19 by a permanently sticky adhesive so that any typed line may be justified by lifting the appropriate strip 24, stretching or contracting it to the desired length, and re-attaching it to the backing 19. An unscored strip may be left at the right-hand edge of the sheet 15 which is torn off before justification, and the slits 21 may be produced before or after printing, thin guide lines being provided on the sheets 15, 19 to assist in printing the characters in the proper position. The character-receiving member 15 may have two non-stretchable portions, one at each end, mounted on a stiffening member, and the characters, which may be imprinted or drawn thereon at various angles, may be distorted to produce wider, higher, or italic types, by separating the end supporting members. The distoited characters can be cut out and pasted into position on a support with other undistorted letters. The invention may also be applied to the production of advertisements by distorting the lines of characters or the designs upon the medium 15 or if desired the entire page of matter may be distorted to any desired shape for subsequent reproduction.
Patent GB-468001-A (GB)
Title: Improvements in aluminium alloys
IPC: C22C21/00
Filed: 1935-12-31
Abstract: An aluminium alloy suitable for internalcombustion engine cylinders and other purposes contains 0,6-1,3 per cent of nickel, 0,-0,3 per cent of cobalt, 0,15-0,4 per cent of chromium, 1,2-1,6 per cent of magnesium, 0,05-0,15 per cent of titanium, 0,25-0,5 per cent of copper or silver or both, and 0,35-0,6 per cent of manganese, or of manganese and one or more of the metals vanadium, molybdenum, and tungsten, the manganese being at least as much as the total content of vanadium, molybdenum, tungsten, and chromium.  Silicon and iron do not exceed 0,7 and 0,5 per cent respectively.  Up to a total of 0,8 per cent of one or more of the metals antimony, bismuth, tin, and lead may also be present.  The cast alloy is heated at 550-575 DEG C., quenched, and then artificially aged, preferably between 8 hours at 170 DEG  C. and 4 hours at 190 DEG  C.  Specifications 382,422 and 439,804 are referred to.
Patent GB-1075088-A (GB)
Title: Improvements in or relating to refrigerators
IPC: F25D23/06
Filed: 1964-09-03
Abstract: 1,075,088. Refrigerators. CORNELIUS CO. Sept. 3, 1964 [Feb. 28, 1964], No. 36130/64. Heading F4H. A cooling coil 12 is mounted on the inner liner 11 of a refrigerator by a tape 13 secured to the coil and liner along the entire length of the coil. The tape is secured to the coil and liner by an adhesive and is provided with further support by the rigid insulating jacket (14) (Figs. 1 and 3, not shown), of the refrigerator. The tape, coil and liner are all made of aluminium.
Patent GB-1352005-A (GB)
Title: Device for preventing rope-hung loads from swinging
IPC: B66C13/06
Filed: 1971-08-02
Abstract: 1352005 Preventing crane loads from swinging WERF CONRAD EN STORK HIJSCH BV 2 Aug 1971 [4 Aug 1970] 36151/71 Heading B8B A container bridge crane has a trolley 1 with a hoisting gear 2 comprising ropes 3 extending over sheaves 4 on a yoke 6 to fixed points 5 on the trolley 1. A container 7 is engaged by the yoke 6. Ropes 8 are secured at spaced points on the yoke 6 and pass over pulleys 9 to respective tensioning drums 10 normally providing equal tension. The drums 10 are electrically interconnected so that unequal loading of the ropes 8 tending to cause one drum 10 to rotate relative to the other drum, for example due to wind force acting on the container 7, is counteracted by an increase in the driving moment of the more heavily loaded drum 10, to impede the swaying movement.
Patent GB-954484-A (GB)
Title: Improvements in or relating to pneumatic tyres and integral wheels
Inventor: FLETCHER HENRY RAYMOND
IPC: B29D30/08
Filed: 1959-10-27
Abstract: 954,484. Moulding pneumatic tyres and wheels. DUNLOP RUBBER CO. Ltd. Oct. 18, 1960 [Oct. 27, 1959], No. 36309/59. Heading B5A. [Also in Division B7] A method of manufacturing a tubular pneumatic tyre and integrally moulded wheel comprises locating a pair of annular discs 22, 24 of rubber or other elastomeric mouldable material coaxially in a tyre and wheel mould 1 of at least two parts 2, 3, almost completely closing the mould (Fig. 1) and supplying inflationary fluid by a tube in the form of a hypodermic needle 19, so as to mould the discs 22, 24 against opposite walls 4, 5 of the mould. The needle 19 is then withdrawn, the mould completely closed and heat is applied to vulcanise the wheel and tyre. Preferably a disc 23 of a harder rubber compound, reinforcing the wheel, is located between the discs 22, 24 on a steel bush 21, located around the central boss 6 of the lower mould half 2. On completion of vulcanisation the pressure is released from inside the mould by applying air pressure via tap 16 to a piston 10 to force a hypodermic needle 9 into the tyre 20 puncturing the sidewall at the inflation valve position.
Patent GB-1384411-A (GB)
Title: Method of manufacturing polymer graftpolymerised onto crystalline inorganic salt
IPC: C08F292/00
Filed: 1972-08-03
Abstract: 1384411 Polymers bound to inorganic salts and porous polymers thereof LION FAT & OIL CO Ltd 3 Aug 1972 [3 Aug 1971] 36356/72 Headings C3P and C3C A process for the preparation of polymers bound to the surface of particles of a crystalline inorganic salt of a weak dibasic acid comprises introducing a weak acid, or a substance which forms a weak acid in water, into an aqueous suspension of the salt in the presence of a monomer capable of free radical polymerization. For example SO 2  or CO 3  may be added to a suspension of CaCO 3 , or SO 2  to a suspension of CaSO 3 .¢H 2 O. The bisulphite or bicarbonate thus freshly formed on the crystalline surface provides active sites which initiate the polymerization. The exemplified monomers are methyl methacrylate, vinyl acetate, styrene and methyl acrylate. Unbound polymer is removed by solvent extraction and the product remaining may be used, according to the proportion of polymer to inorganic salt, as a compatible filler for polymers or as a moulding material. In Example 1, the product comprising poly-(methyl methacrylate) bound to the surface of calcium sulphite particles, is moulded into a plate and the inorganic material is then washed out with hydrochloric or acetic acid to leave a porous polymer, and similarly Examples 2-9 produced porous polymers of polyvinyl acetate, polystyrene polymethyl acrylate and methacrylate, and styrene/methyl methacrylate copolymer.
Patent GB-174515-A (GB)
Title: Improvements in and relating to horse-drawn rollers
IPC: A01B29/02
Filed: 1920-12-29
Abstract: 174,515. Watson, H. C. Dec. 29, 1920. Rollers, land.-In order that a horse-drawn roller may be drawn backwards and forwards without turning round, the ring, hook, or shackle 16 to which the harness is attached is arranged to slide along a rail 13 from one end of the roller frame 1 to the other when the horse is turned round. In addition to the main roller 4, a steering-roller 5 is provided. It is steered by means of a tiller 10, which may be held in position by a rack 12. The driver's seat 11 swivels about a vertical axis, and two foot-rests 17 are provided. The rail 13 extends round one side of the frame I with its main part longitudinally disposed. The draught may be applied obliquely as indicated at AB and CD, the roller being kept to the right path by the steering-roller. According to the Provisional Specification, the rail may be arranged to move slightly laterally.
Patent GB-628612-A (GB)
Title: Improvements relating to the radio frequency heating of dielectrics
IPC: H05B6/60
Filed: 1946-12-10
Abstract: 628,612. Dielectric heating. BRITISH THOMSON-HOUSTON CO., Ltd., and KEITLEY, R. Dec. 10, 1946, No. 36458. [Class 39(iii)] Glue joints C are heated by dielectric loss adjacent a wave guide E supplying radio frequency power in pulses. The pulses may be initiated by a relay operated by the rotation of a roller in contact with the workpiece, and a plunger released by the trailing edge of the workpiece entering the wave guide, may initiate the final pulse and shut down the apparatus. Specification 605,655 is referred to.
Patent GB-628491-A (GB)
Title: Improvements in or relating to the treatment of titanium oxide
IPC: C04B35/46
Filed: 1946-12-10
Abstract: Semi-conductive bodies, in particular resistors and thermistors, are made by shaping crystalline rutile titanium oxide of at least 99 per cent purity by pressing, moulding, or extrusion, and firing in a slightly reducing atmosphere at 1380-1500 DEG  C.  A reducing atmosphere is not necessary during cooling.
Patent GB-878633-A (GB)
Title: Improvements in electro-mechanical oscillators
Inventor: CLIFFORD CECIL FRANK
IPC: G04C3/10
Filed: 1957-11-22
Abstract: 878,633. Oscillating machines; magnetic couplings. HORSTMANN GEAR CO. Ltd. Oct. 29, 1958 [Nov. 22, 1957], No. 36491/57. Class 35. [Also in Group XVIII] An electromagnetic vibrator, e.g. for driving a gear train, comprises an insulating plate 1 mounted on leaf-springs 3 ... 6 and carrying two coils 16, 17 which surround fixed permanent magnets 20, 21. Oscillation of the plate is maintained by alternating current in one coil 16 which is supplied from a valve or transistor amplifier, the input for which is derived from the second coil 17. As shown, the coils are connected to the amplifier via the leaf-springs, but alternatively a transistor may be mounted on the oscillating plate, with or without its power supply. The movement is converted to rotary motion by the interaction of a permanent magnet 23 and the undulating edge of a magnetic wheel 24, this being connected to a gear train. A snail cam attached to one gearwheel co-operates with a pivoted lever to ensure unidirectional rotation (Fig. 3, not shown). The amplifier incorporates a battery and a means of charging it from an A.C. supply. This supply also provides a small signal to start oscillation and to lock its frequency. It is mentioned that the oscillating member may be arranged as a pendulum instead of the seasaw arrangement shown, that the permanent magnets may be mounted on a member which oscillates in anti-phase to that carrying the coils, that the two poles of a single magnet may serve instead of separate magnets, and that an additional coil may be provided to give an electric signal output. Specifications 596,216, 632,264 and 798,261 are referred to.