baber/WOPTO huggingface dataset:
Patent GB-755082-A (GB)
Title: Subsurface well tools
IPC: E21B33/129
Filed: 1954-09-13
Abstract: 755,082. Well tools. BAKER OIL TOOLS, Inc. Sept. 13, 1954 [Oct. 12, 1953], No. 26460/54. Class 85 A subsurface well packer tool substantially of readily drillable material such as cast iron has slips with portions for frictionally engaging the well wall and gripping portions for anchoring the tool to the well wall so that when anchored a rubber packing sleeve is expanded against the well wall at the same time closing a by-pass valve so that fluid may only pass through the drill string which the packer anchors in the well base. The tool has a central body tube 10 which is attached to the drill string B at the top 12 and to a tail pipe 80 at the bottom 13. A sleeve 17, slidable on the tube 10 has slips 19 mounted in grooves 18 (see Fig. 2) and pressed outwards by springs 42, the lower portions 47 frictionally engaging the well wall C. A collar 61 secured to the sleeve 17 is held from axial movement relative to the tube 10 by the engagement of a pin 54 in the horizontal leg 53 of an L slot 51 in the tube 10. Also slidable on the tube 10 is a rubber packing sleeve 25 which is secured to a collar 28 at the top and an expander 20 at the bottom. The collar 28 is prevented from moving upwards and closing by-pass ports 31 in the tube 10 by the heads 62 of bolts 60, shoulders 63 in bores 61 in the sleeve 17. screwed into the expander 20, engaging 'The expander is prevented from downward movement relative to the tube 10 by a shoulder 21 on the tube. To anchor the packer the drill string B is rotated until the pin 54 moves into the vertical leg 52 of the L slot 51. The drill string is then pushed downwards but as the slips 19 frictionally grip the well wall C the sleeve 17 does not move and the tops 23 of the slips hold the expander 20 so that the tube 10 moves down inside the sleeve 25, closing the by-pass ports 31, until a shoulder 12a on. the head 12 engages the sleeve 25 which causes the. expander 20 to force the tops 23 of the slips outwards until their teeth 24 anchor into the well wall C when further downward movement of the drill string B compresses the packing sleeve 24 longitudinally so expanding it against the well wall C (see Fig. 3. not shown). To release the packer 10 the drill string B is moved upwards when the relative movements above are reversed.
Patent GB-677402-A (GB)
Title: Improvements in or relating to uniting of electrical conductor leads
IPC: H02K13/04
Filed: 1950-10-31
Abstract: Brazing alloy consists of 80 per cent of copper, 15 of silver and 5 of phosphorus.
Patent GB-723755-A (GB)
Title: Improvements in or relating to electric flow water heaters
IPC: E03C1/044
Filed: 1952-10-22
Abstract: 723,755. Electrode flow heaters. WILDFANG, A., [trading as METALLWERKE W. WILDFANG KOMMANDIT GES.]. Oct. 22, 1952 [Oct. 22, 1951], No. 26508/52. Class 39 (3) [Also in Group XXIX]. A water heater in which A.C. is passed through the water as it flows between electrodes 17, has two valves controlling respectively the admission of cold water from a supply mains 6 to an electrode chamber 11, and from the mains 6 direct to an outlet 33, the chamber 11 having insulating walls 18, 18a, 24 apertured at 16, 25 to form a cold water inlet and hot water outlets for the chamber 11, the inlet 16 being formed in a partition 14 which separates the chamber 11 from an auxiliary chamber 15, the inlet into which is spaced from the inlet 16 to lengthen the waterresistance path between the electrodes 17 and the valves. The valves are positioned at the intersection of a passage 10 leading to the chamber 15 and a passage 12 communicating with a pipe 13 leading to the outlet 33. The electrodes 17 are each mounted on a conducting bolt 19. A false bottom 24 is spaced at 23 from a cover 22 of an insulating insert 18 to form a second auxiliary chamber 26 which communicates with the outlet 33, either directly as in Fig. 8 (not shown) or through two parallel passages 27, 36 controlled by a valve 4 which also controls the pipe 13 whereby in addition to the hot-cold mixture determined by the previous valves the cold water may be by-passed to a shower connection, either alone or with the hot water. A vent tube 28 and vent 39 ensures that the chamber 11 communicates with atmosphere, except in the last-mentioned position of the valve 4. In this case a projection on the pipe 13, which is rotated on adjusting the valve 4, engages one of the previous mentioned valves to prevent its being closed, and hence the water flow to the chamber 11 being stopped. This ensures that the water supply to the chamber 11 can only be interrupted when the valve 4 is in a position to allow drainage of the chamber 11.
Patent GB-745524-A (GB)
Title: Improvements in the springing of vehicles, in particular heavy load vehicles
Inventor: TRUEMPER KONRAD
IPC: B60G17/04
Filed: 1952-10-22
Abstract: 745,524. Spring suspensions; pneumatic springs. SIEGENER EISENBAHNBEDARF AKT.-GES. Oct. 22, 1952, No. 26519/52. Classes 108 (2) and 108 (3). Relates to a vehicle springing system wherein the springing is effected through the intermediary of a plurality of air cushions to which the wheel loading is transmitted by way of a liquid pressure medium. According to the invention, wheel loading is transmitted to all the air cushions each of which has a predetermined air pressure, whereby a number of air cushions are actuated simultaneously or seriatim by the liquid pressure medium from which the air cushions are separated, in each case, by a plunger disc. In the arrangement shown., in which liquid pressure in air chambers 1, 1 communicates with piston and cylinders 6, 7 for each wheel 5, the liquid in each chamber 1 is separated from the air therein by a differential piston 3, an extension 9 of which is arranged to indicate the liquid level in the chamber. Liquid may be replenished automatically by a pump controlled by a differential relay.
Patent GB-638101-A (GB)
Title: Improvements in or relating to a non-metallic collapsible dispensing tube and methodof making the same
IPC: B65D35/12
Filed: 1947-10-03
Abstract: 638,101. Moulding collapsable tubes. SHELLMAR PRODUCTS CORPORATION. Oct. 3, 1947, No. 26644. Convention date, Feb. 15, 1943. [Class 87 (ii)'] [Also in Groups XVII and XXVIII] The body t of a collapsible tube is made of material e.g. viscose, cellulose acetate or cellulose nitrate which shrinks in drying, a space s being left between the nozzle flange 10 and the side wall t of the tube to allow for contraction without stressing the tube at the shoulder 11. Wet tubing for the body is slid on a former m, aided by air supplied through passages 15, 16, the end of the former m being recessed to receive the flange 10 and to provide an extension 12 for spacing the side wall t from the flange 10. The projecting end of the body t shrinks over the flange 10, and may be clamped thereagainst by a collar d, pips 24 which enter the ends of the passages 16 preventing the nozzle rotating whilst tightening the collar d. Fig. 1 shows a battery of formers mounted on tapered stems 17 connected to an air-line 20. Fig. 11 shows an alternative form of mandrel having additional air passages 21.
Patent GB-191169-A (GB)
Title: Improved apparatus for use in administration of anaesthetics
IPC: A61M16/18
Filed: 1921-10-08
Abstract: 191,169. Hall, L. B. Oct. 8, 1921. Inhalers. - Apparatus for use in administering anaesthetics comprises one or more gas bottles D fitted with automatic pressure regulators E, and connected through fine adjustment valves F, G to perforated tubes B, C immersed in water or other liquid in a glass vessel A, so that the rate of flow of the gases may be observed. The gases pass to an ether vessel O fitted with a valve comprising an outer drum H, Figs. 1 and 3, within which an inner drum J is rotatably mounted. The drum J may be turned so that the gases pass directly through the transverse tube N to the patient, or so that the full volume of gas passes to one of a series of chambers K, L, M, thence through tubes of varying length projecting from the drum J into the ether bottle and then through the outlet P to the patient. The ether bottle O may be recharged from a stock bottle R by allowing gas under pressure to pass from a valve Q to the stock bottle, thus forcing the ether through the tube S to a filling aperture T on the drum J.
Patent GB-170005-A (GB)
Title: Device for hot pressing metal springs
IPC: B21K23/00
Filed: 1921-10-08
Abstract: 170,005. Kotte, H. Oct. 9, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Forging-dies.-The lower face of a die for hotpressing brass or other metal blocks to form springs such as contact springs for electric lever switches is inclined upwardly with respect to the bottom surface of the matrix so that the flow of metal to form the side pieces is facilitated. One of the walls of the matrix consists of a block forming part of the die which is guided in a slot in the matrix so as to facilitate escape of vapour produced by contact of the red hot metal with the greased surface of the matrix. For forming springs as shown in Fig. 2, the die has a curved end e<1>, sides provided with recesses e<2> formed at the upper end with lateral projections e<4>, and a guide block i<1>. The lower surface inclines upwardly from e<1> to i<1>. The matrix d, which is solid and is provided with a base-block f, has an opening e, the walls of which in the vicinity of the recesses e<2> are tapered so as to reduce friction on the walls of the die and matrix, and the top of which have recesses e<3>. Tha back of the opening is formed by the guide block i<1> which slides in a slot i. The blank is placed on the base f and the die after pressing the metal into the base presses it up the recesses e<2> to form the sides of the spring and the projections e<4> bend the edges into the recesses e<3>. In forming springs with journals, screws, or pins such as c, Fig. 1, the base f has an aperture closed by a rod h which further allows escape of vapour from the grease, and may also serve as an ejector.
Patent GB-1118053-A (GB)
Title: Axial piston hydraulic pump
IPC: F04B23/10
Filed: 1965-06-23
Abstract: 1,118,053. Hydrostatic transmissions. SUNDSTRAND CORP. 23 June, 1965 [2 July, 1964; 4 June, 1965], No. 26687/65. Headings F2C and F2D. [Also in Division F1] In a hydrostatic transmission comprising an axial piston pump and a motor 69, the pump cam plate 63 is adjustable on both sides of the neutral position by a handle 84 and the cam plate is movable in a stroke decreasing direction against the bias of a torsion spring 88 when the pump outlet pressure exceeds a predetermined maximum value at a particular pump speed. The cam plate 63 is subjected to a net stroke decreasing piston moment due to the fluid pressure acting on the pistons 62 and the inertia of the pistons and this is just balanced by the spring 88 at the maximum desired outlet pressure in all adjustment positions of the handle 84. A spool valve 75 controls the flow of excess liquid through an outlet 76 supplied to the transmission circuit by a make-up pump formed by grooves 66 in the pump cylinder block 61 and valve plate 65. In a further embodiment, Figs. 6 to 8 (not shown), an axial piston pump 310 is in closed circuit with a geartype motor 311, a gear pump 374 supplying make-up liquid to the circuit. Excess make-up liquid flows via a relief valve 396, the pump housing 312 and a filter 302 to a make-up liquid reservoir 382. The pump cam plate 346 is angularly adjustable on both sides of neutral by a handle 350 and a torsion spring holds an arm, fixed to the cam plate, in alignment with the handle against the net piston moment exerted thereon. To provide for free wheeling of a vehicle fitted with the transmission a needle valve 460 is provided to connect the inlet and outlet lines 461, 462 of the pump.
Patent GB-510488-A (GB)
Title: Metal strip for the manufacture of folded liquid-tight containers
IPC: B21D51/28
Filed: 1938-09-13
Abstract: 510,488. Seamed joints. REMY, VAN DER ZYPEN & CO. Sept. 13, 1938, No. 26726. Convention date, Oct. 29, 1937. [Class 83 (iv)] A sheet metal band for the manufacture of folded liquid-tight cans and the like is provided over a width equal to the width of the fold or to twice the width of the fold with a thermoplastic packing coating applied at one edge on the upper side of the blank and at the other edge on the lower side of the blank so that when the fold is made, the innermost bands 10 and 11 of the fold have a double layer of packing between them. The coating is from 0.5 m.m. to 1.5 m.m. thick. A suitable material for the coating is a condensation product of phenol and formaldehyde compounded with fillers such as chalk and wax to form a pasty mass which is solid at temperatures of from 15‹C. to 20‹C. and becomes plastic 'and adhesive at 30‹C. to 40‹C. and retains this condition up to about 130‹C. Alternatively a rubber composition may be used.
Patent GB-1481864-A (GB)
Title: Clip
IPC: F16B21/09
Filed: 1974-06-17
Abstract: 1481864 Clip UNITED-CARR Ltd 23 May 1975 [17 June 1974] 26745/74 Heading E2B A clip 10 for attaching an article 11 to a support member 12 having a stud 13 with a head 25, comprises a body 14, the latter having portions 16, 17 with flat under-surfaces 18, 19 respectively for engagement with the support member 12, an elongate slot 21 with a portion 22 which connects portions 23, a recess 24 for receiving a head 25 of the stud 25 therein, and ramp surfaces 26. The clip may be made from synthetic plastics material. In assembling, the head 25 of stud 13 is passed through one of the apertures 23 and the clip is then moved so that the head 25 can enter the recess 24, the ramp surfaces 26 and resilience of the clip facilitating the relative movement. The article 11, having inturned flanges 34, 35, is then engaged with the clip 10, having grooves 31, 32 formed in legs 27, 28 respectively of the clip said legs having surfaces 29, 30 respectively which are urged into engagement with the support member 12.
Patent GB-616481-A (GB)
Title: Improvements in or relating to ignition systems for gas turbines
IPC: F23R3/34
Filed: 1946-09-05
Abstract: 616,481. Igniting burners. GRASSICK, D. M. Sept. 5, 1946, No. 26754. [Class 75 (iii)] [Also in Group XII] To facilitate ignition, the combustion chambers of a gas turbine are combined with auxiliary combustion chambers each of which comprises a casing housing an enclosure which discharges into the main combustion chamber. The enclosure surrounds a fuel jet and electrical ignition means for igniting the fuel and is supplied with air from the casing through a restricted passage. The auxiliary chamber Fig. 2, consists of a pair of co-axial cylinders 15, 16 separated by flanges 17. One end of the cylinder 16 is closed by a plate 18 in which is mounted a fuel atomising nozzle 20 and the other end is provided with a flange 22 by which the auxiliary chamber is mounted on the casing 10 of the main chamber. Air holes 25 in the cylinder 15 admit air to the space 27 between the cylinders from the space between the air casing 10 and the flame tube 13. Air holes 26 form a restricted passage through which the air flows from the space 27 to the interior of the enclosure or cylinder 16. The inner end of the cylinder 16 is tapered at 21 to increase the velocity of the combustion gases. A sparking plug 28 is used for igniting the fuel-air mixture in the cylinder 16. In a modification, the auxiliary chambers of two adjacent combustion chambers are connected together and used as a balance pipe between the chambers. The invention may be applied to re-heat combustion chambers and the auxiliary chamber may be mounted as a pilot chamber in the primary zone of the main chamber.
Patent GB-1298645-A (GB)
Title: Improved compression - ignition engine
Inventor: EYZAT PIERRE
IPC: F02B3/06
Filed: 1971-04-19
Abstract: 1298645 Combustion chambers INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRIFIANTS 19 April 1971 [15 April 1970] 26812/71 Heading F1B A compression ignition engine comprises a piston with a protrusion 8, Fig.1 penetrating into a transfer passageway between a pre-combustion chamber and a cylinder towards the end of the compression stroke, a fuel injector opening into the pre-combustion chamber, wherein the smallest diameter of the transfer passageway is at most equal to 0À6D¥, D being the diameter in millimetres of the cylinder bore, the annular clearance between the protrusion and the transfer passageway is 0À05D¥ and the height of the protrusion is so determined that during the downward stroke the flow section left free for gas flow between the  protrusion and the lower edge of the transfer passageway becomes equal to the minimum section with which the transfer passageway opens into the pre-combustion chamber at an angle (measured at the crank-shaft) between half and the whole of the duration of full load injection. The protrusion may be frusto-conical.
Patent GB-1396073-A (GB)
Title: Process and apparatus for the continuous measurement of  the cross-sectional area of a wire
IPC: G01B7/12
Filed: 1973-06-06
Abstract: 1396073 Measuring cross-sections electrically THYSSEN NIEDERRHEIN AG HUTTEN-UND WALZWERKE 6 June 1973 [13 June 1972]  27027/73 Heading G1N The cross-sectional area of a wire (or rod) is determined by passing the wire through an A.C. energized coil forming part of an LC oscillating circuit and measuring the frequency of the oscillating circuit. At sufficiently high energizing frequencies, 1-30 MHz, the change in inductance of the coil due to eddy currents induced in the wire depends only on the extent to which the coil is filled by the wire and is unaffected by the electrical conductivity and magnetic permeability of the wire. By using short coils having a length to diameter ratio greater than 1.5 the mathematical product of the total capacitance and inductance of the oscillating circuit and hence its frequency is independant of variation of position of the wire in the coil. The coil is in the form of copper strips on a ceramic former provided with inlet and outlet funnels for guiding the wire, the coil and funnels being water cooled.
Patent GB-439322-A (GB)
Title: Impermeable coating for rubber
IPC: C08L21/00
Filed: 1934-09-21
Abstract: Inner tubes for pneumatic tyres are rendered impermeable and heat-resisting by a solid, flexible, inner coating comprising tanned gelatin.  The coating may be obtained by incorporating a tanning-agent in a gelatin composition, or a gelatin coating may be tanned after application to the inner surface of the tube. Suitable tanning agent are hypochlorites, neutral salts of chromium or aluminium, bichromates, formaldehyde, quinone, tannin, or mixtures. A wetting agent is advantageously included. To increase resistance to heat, powdered materials, e.g. kaolin, carbon black, chalk, blanc fixe, &c., may be added.  Examples are given: (a) of aqueous coating-compositions comprising gelatin, tannin, polyglycerol, ammonia, and a wetting-agent, and (b) a similar composition without tannin, the coating being tanned, after drying, by spraying with an aqueous solution of tannin.  The Specification as open to inspection under Sect. 91 refers also to the coating of rubber generally, e.g. walls of airships or toys, rubberized cloth, and the outer covers of pneumatic tyres. This subject-matter does not appear in the Specification as accepted.
Patent GB-1428468-A (GB)
Title: Information storage system
IPC: G11C11/402
Filed: 1973-06-08
Abstract: 1428468 Regenerating stored data INTERNATIONAL BUSINESS MACHINES CORP 8 June 1973 [29 June 1972] 27311/73 Heading G4C Data storage system includes an array of storage cells of a kind requiring periodic regeneration, means for accessing the array, means for periodically regenerating the storage cells, and means for inhibiting the regenerating means while the array is accessed. Two storage cells of the kind described in U.S.A. Specification 3,541,530 are shown to represent the first and last cells of one of a plurality of rows thereof, each row storing a corresponding bit of each of 32 words. To access a cell a decoder, say 102A, supplies a pulse to word line W/L1 via FET Q104 enabled by a chip select pulse CS. The cell is then accessible via bit lines B/S0 and B/S1. Accessing a cell in this way serves to regenerate the stored data. However it is also necessary to provide a systematic regeneration. A pulse R, which is out of phase with CS and is derived from the word decoders or is specially generated connects each word line W/S to the output of a corresponding stage 108 of a shift register via FET's Q110 when the array is not being accessed. Shift register 108 contains a single 1 bit which is circulated by asynchronous (with respect to the storage cycle time) pulses # 1 , # 1  from a control 112 which reinserts a 1 bit in the first stage when the 1 bit leaves the last stage, i.e. all stages contain 0. In this way the ceils of successive word lines are regenerated by the one bit applied via FET's Q110 unless the array is being accessed when the FET's Q110 are blocked. The use of a single bit circulating in a shift register is said to save power. The relative frequencies and durations of the pulses # 1 , CS, # 1 , and R are chosen to permit full regeneration in each # cycle. Two memory arrays may be provided with respective shift registers 108 or one large shift register circulating at twice the frequency. The large shift register may contain a series of spaced 1 bits so as to regenerate a number of word lines simultaneously.
Patent GB-159924-A (GB)
Title: Improvements in or in connection with boiling pans and mixing machines
IPC: B01F7/16
Filed: 1919-11-07
Abstract: 159,924. Maclachlan, J., Stewart, G., and Clark, A. E. Nov. 7,1919. Stationary batch-mixers with rotary stirrers.- Relates to mixing-apparatus for boiling-pans in which scrapers and stirrers are carried on coaxial shafts, and are so mounted that they can be withdrawn from the pan. According to the present invention, the scrapers and stirrers are carried on a rotary head so that they can be lifted from one pan and lowered into another. Fig. 1 shows an apparatus with two pans A, A<1>, but several may be employed if desired. The stirrers d<1> and scrapers d are carried respectively on coaxial shafts D<1>, D supported by an arm C rotatably mounted on a column B. The shafts D<1>, D are driven through bevel gearing, as shown, by a main shaft L' carrying pulleys K, K<1>. The stirrers and scrapers are connected to a head E sliding on rods c, c<1> and counter-balanced by a weight e<2>. The head E may be locked in its raised position and the arm C is then swung round to bring the stirrers &c. over the trough A<1>, into which they are lowered when required.