baber/WOPTO huggingface dataset:
Patent GB-499308-A (GB)
Title: Improvements in or relating to compressed air power transmitting plant
IPC: F16H39/01
Filed: 1937-06-17
Abstract: 499,308. Pneumatic power transmission. JORGENSEN, O. E. June 17, 1937, No. 16862. [A Specification was laid open to inspection under Sect. 91 of the Acts, Dec. 20, 1937.] [Class 8 (ii)] Air compressed by a compressor O is delivered to a high-pressure tank B and thence to air motors A, the exhaust of which passes in normal working through a low-pressure tank C and cooler U back to the compressor. The compressor may be regulated automatically to maintain a constant pressure difference between the two tanks until the maximum output of the compressor is reached, after which a valve N opens to admit the air into an expansion tank H. After the peak load, the air is returned from the tank H by opening a valve V and starting an auxiliary compressor P, delivering either to the high-pressure or the low-pressure tank. The valves N, V are dependent on the load on the main compressor and the pressure in the expansion tank or the difference between the latter and that in the low-pressure chamber by a governor acting mechanically or through an oil-driven servomotor on a lever 2, 3. Pistons 4, 5 having areas such that at the normal pressures in the low-pressure and expansion tanks the pistons assume their lowest position, coact with the valves to determine the destination of air flow.
Patent GB-544110-A (GB)
Title: Improvements in permanent magnet structures
IPC: H01F7/02
Filed: 1940-11-25
Abstract: 544,110. Door fastenings. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 25, 1940, No. 16874. Convention date, Nov. 24, 1939. [Class 44] [Also in Group XXXV] A permanent magnet element 110, Fig. 12, is provided with a pair of U-shaped pole-pieces 111, 112, with which cooperates an armature 128 and a fixed shunt path of low reluctance is provided by the gaps 120, between the ends 121, 122 of the polepieces whereby when the armature is removed the flux density does not fall below a minimum value. Curves show that by adjusting the shunt gap to be several times the working gap an increased pull is obtained since de-magnetization of the opencircuited magnet is avoided. The magnet is embedded in the edge 125 of a door frame so as to engage two armatures 128 on opposite ends of a spring 129 screwed into the door 126, whereby the door is held closed.
Patent GB-561779-A (GB)
Title: Amplitude limiting system for frequency modulation receivers
IPC: H03G11/06
Filed: 1942-11-27
Abstract: 561,779. Frequency modulation. PHILCO RADIO & TELEVISION CORPORATION. Nov. 27, 1942, No. 16886. Convention date, Jan. 12, 1942. [Class 40 (v)] Apparatus for reducing amplitude variations of a received frequency modulated carrier wave, comprises means for modifying the wave so as to substantially level the carrier signal voltage peaks on one side only of said wave, whereby the amplitude variations appear only on the other side of the wave, and means for thereafter selecting a portion of the modified wave substantially free of amplitude variations. As shown in Fig. 2, the output from the first I.F. stage 7 is fed to the grid of a pentode 13 biassed nearly to cut off and having a two-part load circuit 15, 16 comprising a circuit 18, 20 tuned to the intermediate frequency and a resistance 22 and byepass condenser 23. Thus the tube 13 acting as an amplifier produces across coil 18 the frequency modulated signal, while the tube being biassed to act as an amplitude detector, produces across resistance 22 a voltage proportional to the amplitude modulation envelope of the signal. These voltages are transferred to secondary 19 and resistance 24 where they are added together and applied to the grid of a pentode 26. With correct amplitude and phasing, this adding levels the peaks and thus effectively eliminates the amplitude modulation on the positive side of the wave. Tube 26 is biassed below cut-off and so only uses the positive peaks which are free from amplitude modulation. Thus there is fed to detector 10 a frequency modulated wave without amplitude modulation.
Patent GB-384581-A (GB)
Title: Sewing machine looper mechanism
IPC: D05B63/00
Filed: 1932-06-16
Abstract: 384,581. Sewing-machines. FAIRWEATHER, W. C., 65, Chancery Lane, London.-(Singer Manufacturing Co. ; Elizabeth, New Jersey, U.S.A.) June 16, 1932, No. 17028. [Class 112.] Chain - stitching.-In a two-thread chainstitching machine, manual means are provided to retract the looper to facilitate its threading. The looper 8 is carried on the member 9 fulcrumed on the pin 10 in the block 11 of the rock shaft 12. The shaft 12 is oscillated by the fork 13 and main shaft eccentric 14 to impart the usual needle-avoiding movements to the looper. The carrier 9 has a ball stud 15 connected by a long link 16 to a ball stud 17 on the rocker arm 18. This is in turn connected by the short link 20 to a second rocker arm 21 clamped to a sleeve 22 journalled on the eccentric portion 23 of a shaft 24 journalled in bearings in the standard 1. A handle 26 is fixed to this shaft to enable it to be turned through 90‹ to move the looper to facilitate threading. The sleeve 22 carries a ball-ended arm 27 connected by the fitment 28 to a crank strap 29 embracing the crank 30 on the main shaft 3. This arrangement imparts the loopseizing and shedding movements to the looper. The toggle-like action of the link 20 and arm 21 permits a relatively short-stroke looper to be used while still retaining rapid loop-seizing and shedding action.
Patent GB-200676-A (GB)
Title: A folding box for eggs and other fragile articles
IPC: B65D85/32
Filed: 1922-06-21
Abstract: 200,676. Hunt, R. June 21, 1922. Folding boxes; fittings, internal. -A folding box for eggs &c. is provided with collapsable partitions adapted to fold and expand with the box. In folding the box, partitions 19 in one direction remain parallel while the cross-partitions 11 fold in V-fashion as shown in Fig. 3. The box, which may be made from a single cardboard &c. blank to which the partitions are secured by adhesive or stitching, folds about the line z-z and may be erected by pulling strings. Felt &c. pads may be placed above and below the partitions.
Patent GB-1186077-A (GB)
Title: Method for Making Annular Parts of U-Section
IPC: B21K1/64
Filed: 1967-04-14
Abstract: 1,186,077. Forging. ETABS. BAUCHE (Coffres-Forts Bauche et Nicolle et Cie). 14 April, 1967 [19 April, 1966], No. 17260/67. Heading B3H. A workpiece 7 having a sleeve portion 7a and a flange portion 7b is deformed into an annular article of U-section by displacing the sleeve axially of the flange to form the inner limb 7a of the U-section and simultaneously causing metal flow of the flange 7b to produce the outer limb 7c. The workpiece is pressed hot or cold in a lower die 1 having a bore 2 closed by a member 3 which also acts as an ejector. Pressure is applied to the flange 7b by an upper die 8 which contains an inner plunger 10 for displacing the sleeve portion 7a. The bore 2 may be of hexagonal shape for producing a nut with an integral washer.
Patent GB-530583-A (GB)
Title: Improvements in or relating to windows and window-fittings
IPC: B63B19/00
Filed: 1939-06-13
Abstract: 530,583. Ventilators. NORDON, C. L. June 13, 1939, No. 17322. [Class 137] A window fitting is constructed as a single unit comprising a frame 10 including a cross member 11, the upper part being glazed at 12, and the lower part having a grid 22 through which air passes, and is deflected upwardly through a grid 23 into the room, the latter grid forming the window-sill. The air flow is controlled by shutters 27 adjusted by a slide with a knurled head 35. External vanes 36 are angularly adjustable by knobs 39 to deflect air into the room. A blind 40 is provided as part of the window fitting. The incoming air may be filtered to remove poison gases by placing activated carbon on a gauze screen 41. A baffle 20 serves to prevent rain being blown through the fitting.
Patent GB-173474-A (GB)
IPC: H04M1/04
Abstract: 173,474. Bantow, B. W. A. 0., Roeper, J. P. de, and Mulder, A. Dec. 29, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Brackets, adjusting.-An adjustable holder for telephone instruments comprises two clamping members 1 hinged to a member 2 and connected to two plates 3<1>. These plates are hinged by a bolt 4 to a rod 6, the other end of which is provided with a piston 20, which fits tightly in a tube 8. This tube is mounted on a plate 13 by a universal joint 9, and is guided in a slot in the semicircular yoke 10 which may be turned about the bolts 11. To maintain the tube 8 in any adjusted position, a spring 17 holds a loose plate 16 against the yoke. The friction between the various adjustable parts enables the apparatus to be maintained in any desired position.
Patent GB-1177026-A (GB)
Title: Device for the Entrainment of the Pin Stocks on a Drawframe
IPC: D01H5/04
Filed: 1968-04-10
Abstract: 1,177,026. Draw frames. INSTITUT TEXTILE DE FRANCE. 10 April, 1968 [10 April, 1967], No. 17364/68. Heading D1N. In a drawframe of the kind in which ends of pin stocks 3 are engaged by supporting surfaces of the parallel screws 1, 2 and moved translationally by rotation of the screws, each screw has at least one pair of supporting surfaces having envelopes which comprise oppositely tapered truncated cones (6, 7), the supporting surfaces of the two screws which support the same pin stocks being oppositely tapered. The supporting surfaces may be constituted by the apices of the screwthreads or by the dedenda 4, 5 as shown in the Figure. The screw threads are of equal pitch so that each screw thread engages with alternate ones of the pin stocks.
Patent GB-375983-A (GB)
Title: Improvements in aircraft launching apparatus
IPC: B64F1/06
Filed: 1931-06-16
Abstract: 375,983. Aircraft launching apparatus. MACTAGGART, SCOTT, & CO., Ltd. and MITCHELL, C. C., of Station Ironworks, Loanhead, Edinburgh. June 16, 1931, No. 17511. [Class 4.] In mechanism for releasing aircraft from the trolley of launching apparatus of the type in which the craft has fore and aft spools or supporting members adapted to be held by hooks on forwardly movable hinged members extending upwards from the trolley, means being provided whereby the front hook opens automatically when the trolley has travelled a certain distance, the rear hook, as shown in the Figure, has a hinged portion a which is supported by and held in the closed position on the rear spool S by link mechanism which when the front hook is opened allows the spool S to be pulled out of its hook and then by reason of the part a moving forward about its hinge t<1> on the trolley causes a pivoted member h<2> of the hook to move below the fixed member h<1> of the hook. Two rear hooks are provided comprising the arm a mounted on a rear leg k of the trolley superstructure and formed at its upper end into a hook portion h<1>, a rear link pivoted to the trolley structure at p<3> and at its upper end to the movable portion of the hook h<2>, the latter being also pivoted at p<1> in a slot a<1> in member a. When the trolley is braked the spool S pulls forwardly and opens the hook by moving part a forwardly, part h<2> rotating backwardly and its pivot p<1> sliding down the slot a<1>. This movement may be assisted by a spring s<2>. To facilitate mounting of the aircraft the rear link is formed with a narrow slot m<1> opening into the hole m<3> for its securing pin p<3>. The latter is movable axially against spring restraint so as to bring a reduced portion of the bolt into register with slot m<1> so that the hinge h<2> can be moved bodily downwardly with the strut whilst part a is left in upright position. The launching apparatus may be of the type in which front and rear hooks are mounted on upwardly extending members forming the trolley superstructure which members are universally mounted and supported by adjustable side stays and engage trunnions on the fuselage, one pair situated at the bottom of the fuselage in rear of the lower plane and the other further aft. The front members are also stayed by rearwardly extending telescopic struts incorporating dashpot devices, the arrangement being such that the front uprights transmit the thrust to the aircraft and the rear, which are adjustable in height only, serve to hold the tail in position. When the front hooks are freed locking devices on the telescopic struts are also released so that the front legs are free to fall clear of the aircraft, their fall being cushioned by the dashpot. The hook means above described may be employed on trolleys adapted to launch seaplanes and flying boats in which the hull or floats, as the case may be, are supported directly on the trolley. In these cases the accelerating force may be transmitted through the steps of the float or hull.
Patent GB-981013-A (GB)
Title: Rotary ball valves for controlling fluid flow
IPC: F16K5/20
Filed: 1963-05-03
Abstract: 981,013. Valves. H. A. ROY. May 3, 1963 [May 11, 1963], No. 17527/63. Heading F2V. In a rotary spherical valve having an inlet 12 and an outlet 14, the rotary ball 24 seats within a pair of annular, spherical surfaced rubber, elastomer or metal seal rings 26 and 28 in sealing and slidable engagement with spherical surfaced valve body seats 54 and 56. During valve assembly, the rings 26 and 28 are rotated upon the seats 54 and 56 to permit the insertion therebetween of the ball 24 via valve housing opening 36. As the ball 24 is forced downward into the bore the seal rings 26 and 28 slide about seats 54 and 56 into the vertical position to surround and contact the ball 54. The ball is rotated by a stem 30 located within a keyed slot 32 against fixed limiting stops (not shown) and is retained in position by bonnet 34 which bears, via thrust washer 46, against stem flange 31. 0-ring seals 62 and 64 are preferably located in annular grooves within seats 54 and 56 and the grooves may comprise merely an axially and a radially extending surface or, if in the upstream seat, may comprise a parallel sided groove to prevent seal ring extrusion under high pressures. The diameter of the seal rings 26 and 28 is preferably less than that of the seats 54 and 56. Where the seal rings are made of metal they may also contain O-rings within grooves 70 and 72. The seal rings may also be constructed with a semicircular, radially extending flange 66 to restrict motion during valve assembly.
Patent GB-514980-A (GB)
Title: Improvements in tobacco smoking pipes
IPC: A24F1/00
Filed: 1938-06-14
Abstract: 514,980. Tobacco pipes. JACOBS, S. M. J. June 14, 1938, No. 17622. [Class 130] In a tobacco pipe in which the stem 11 fits directly into a hole in the wall of the bowl near the bottom there are two shoulders on the stem, 10a, 23, engaging corresponding shoulders in the bowl wall. As shown, a screw threaded metal sleeve 20 which forms part of the stem screws into an internally threaded sleeve in the bowl and holds the two parts together. The sleeve 20 has a part projecting into the bowl which can be used to loosen deposits by turning the stem.
Patent GB-1070114-A (GB)
Title: Tungsten-ruthenium alloys
IPC: C22C27/04
Filed: 1966-04-25
Abstract: An alloy consists of .W.88-98.9% .Ru.1.1-12%
Patent GB-622189-A (GB)
Title: Improvements in and relating to dynamo electric machines
IPC: H02K9/18
Filed: 1944-09-21
Abstract: 622,189. Cooling dynamo-electric machines. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 21, 1944, No. 18019. Convention date, Sept. 21, 1943. [Class 35] A vertical-shaft machine has heat-exchangers disposed near the corners of a square housing enclosing, but spaced from, a cylindrical stator core. As shown in the left-hand half of the Figure, for closed operation air flows radially outwards through ducts in the stator core 10, between guide 16, and after passing over the water coolers 14 returns to the top or bottom of the machine and re-enters the rotor for re-circulation. For operation as an open machine, doors 25 in the foundation are opened to admit external air and doors 19 in the upper part are opened for the outlet of the air which has passed through the machine, as shown in the right-hand side of the Figure. The casing is made up of sections which are easy to disassemble and which do not involve accurate machining in assembling the machine.
Patent GB-141584-A (GB)
Title: An improved apparatus for converting direct electric current into high frequency alternating current
IPC: H02M1/22
Filed: 1919-07-18
Abstract: 141,584. Dale, A. W. 'July 18, 1919. Commutator switching-arrangements.-A commutator switch for converting direct current to alternating current has a rotating member with annular tracks of separated conductor strips of alternate polarity connected to the direct current supply and engaged by the brushes collecting the alternating current. In the form shown in Figs. 1 and 2, the insulated conductor Tings 1, 2, 3 are carried by an aluminium disk 4 which is rotated by the motor 7a. Transverse slots are formed in the meeting edges of the conductor rings to produce a number of tongues so that the tongues 1<a> of the ring 1 alternate with the outer tongues 2a of the ring 2; and the tongues 3<a> of the ring 3 alternate with the inner tongues 2<a> of the ring 2. The tongues project through the insulating material 5 to the face of the commutator dish and form two annular tracks in contact with the alternating current brushes. The disk is strengthened by a spider 8 having arms bolted to the conductor rings. The rings 1, 3 are connected together by the lead 1<b>, and direct current is supplied through brushes to the rings 2, 3. The apparatus may be used for obtaining high-frequency currents for wireless telegraphy and the rotary disk discharger 23 may be driven by the motor 7a. In the modification shown in Fig. 5, the disks 32, 33 and 34, 35 are flanged and slotted to form interleaved contact teeth separated by insulation. Direct current is fed to these contact disks through brushes 41, 42 and slip rings 30, 31 and alternating current is collected from the contacts by brushes 45, 46. In another modification, the commutator consists of two conductor rings 48, 49, Fig. 11, with transverse slots in the outside edges which leave a series of narrow contact strips 51, 52. The rings are secured to spiders on the shaft 53 by insulated bolts 56. Direct current is fed to the brushes 58, 59 on the rings and alternating current is taken from brushes in the holders 65, 66. The alternating current brushes are arranged in pairs on each series of contacts, the brushes 63, 64 as shown in Fig. 13 engaging the series 52 in such a manner that one brush is on a contact when the other is on an insulating section.
Patent GB-418024-A (GB)
Title: Improvements in or relating to grinding, crushing or pulverizing machinery
IPC: B02C17/00
Filed: 1933-06-24
Abstract: 418,024. Mills and apparatus. LONG, T. A., 32, Handsworth Road, Handsworth, and POTTS, W. W., 13, Endcliffe Avenue, both in Sheffield. June 24, 1933, No. 18041. [Class 59.] A mill for reducing coke &c. comprises two co-axial rotors, one or both of which are dished and contain loose balls, the two rotors being driven in different senses or in the same sense at different speeds. As shown, the discs 4, 5 are enclosed in a casing 30 and are lined and may be corrugated internally at 6, Fig. 2, to agitate balls 3. Material may be fed between the discs through a hollow shaft 24 or where a fixed spacing member 8 is employed the feed may be inserted through an opening 32, Fig. 2, and the ground material discharged through an opening 31. One disc may move axially against the compression of a spring 13, a collar 16 limiting the gap between the discs. A screwed spindle 20 engages with lost motion a collar 17 on the rotor spindle of the disc 4 so that the discs may be separated to remove the balls.
Patent GB-347943-A (GB)
Title: Manufacture of alkoxy-aldehydes
IPC: C07C45/51
Filed: 1930-06-12
Abstract: Alkoxy aldehydes are produced by the partial hydrolysis of the alkoxy-acetals which result from the action of three molecules of p an alcohol on one molecule of an unsaturated aldehyde.  The catalyst for the hydrolysis may be hydrochloric, sulphuric, alkyl sulphuric, toluene sulphonic, phosphoric or oxalic acid, and the temperature may be 20-25 DEG  C.  It is not necessary to isolate the acetal; for instance the acid catalyst acting on a mixture of alcohol and unsaturated aldehyde yields a mixture of alkoxy acetal and alkoxy aldehyde which is converted by the action of water into alkoxy aldehyde, the concentration of the acid catalyst being varied if necessary by adding a buffer substance.  The alkoxy-aldehyde is isolated by fractional distillation, and usually forms a binary mixture with water.  In the examples (1) ethoxy butyracetal is shaken with normal hydrochloric acid at ordinary temperature until the mixture becomes homogeneous, when the acid is neutralized with sodium bicarbonate and acidified with acetic acid and the mixture is fractionally distilled, alcohol passing over first, followed by a binary mixture of ethoxy aldehyde and water which separates into two layers; (2) crotonic aldehyde is added to a mixture of alcohol and sulphuric acid, and left for three days at 30 DEG  C.; water is added and the mixture shaken; the solution is neutralized with magnesium carbonate and distilled in a column still at 80-90 DEG  C., (5) crotonic aldehyde is added to ethyl alcohol containing toluene sulphonic acid, the mixture being left for five days; water is added, and the acid is neutralized with sodium carbonate; (6) crotonic aldehyde is added to methyl alcohol containing sulphuric acid, and after standing, water is added and the mixture is neutralized, the methoxybutylaldehyde being isolated as before; in a similar manner, the butyl, amyl, isoamyl, benzyl and other derivatives of oxybutylaldehyde may be prepared.
Patent GB-355409-A (GB)
Title: Earth boring bits of the blade type
IPC: E21B10/26
Filed: 1930-06-13
Abstract: 355,409. Earth-boring drills. CHICAGO PNEUMATIC TOOL CO., 6, East 44th Street, New York, U.S.A.- (Assignees of Reed, C. E. ; 1010, North Market Street, Wichita, Kansas, U.S.A.) June 13, 1930, No. 18205. Convention date, Aug. 5, 1929. [Class 85.] An earth-boring bit has initial cutting teeth 5, 5a, 5b diametrically arranged and at successively higher levels, and in a transverse vertical plane and at higher and varying levels are clean-up teeth 6, 6a, and reaming teeth 7. The teeth 6, 6a are at radial distances corresponding to the radial distances of the grooves between the teeth 5, 5a, 5b. The teeth have backs of deep and curved section to give clearance and the forward lower parts of the teeth are forwardly curved. An axial water supply passage 15 is provided. The bit body may have a tapered and coarse-threaded projection for connection to the drill stem, or a polygonal projection 8 with transverse projections 8a fitting in corresponding sockets formed in co-operating chuck members 10 with shanks 11 fitting in sockets in a one-piece head 13 and secured by nuts 14 as in Specifications 283,514 and 286,237, [both in Class 85, Mining &c.].
Patent GB-219481-A (GB)
Title: Improvements in or relating to couplings for metal tubes
IPC: F16L19/028
Filed: 1923-07-14
Abstract: 219,481. Broughton Copper Co., Ltd., and Tomlinson, F. July 14, 1923. Butt joints.-Relates to a pipe &c. joint wherein the pipes 1, 2 are provided with flanges 3, 4, respectively, adapted to be drawn together by a screwed coupling 5, 6. The coupling member 5 is provided with a convex rim 7, while the member 6 has a concave annular recess 8, of different radii in cross-section, so that when the flanges are pressed together two concentric lines of contact are formed thereon. Spaces 5a, 6a are provided between the members 5, 6 and the tubes 1, 2 to allow for bending stresses. In a modification, the coupling 5, 6 is replaced by two ordinary sleeves, formed with a rim and recess respectively, joined by a coupling sleeve.