baber/WOPTO huggingface dataset:
Patent GB-552546-A (GB)
Title: Improvements in record changing mechanisms for gramophones
Filed: 1942-02-19
Abstract: 552,546. Magazine gramophones. INDUSTRIAKTIEBOLAGET LUXOR. Feb. 19, 1942, No. 2220. Convention date, Dec. 6, 1940. [Class 40 (ii)] A central stem 1 formed with an eccentric extension 2 for supporting a stack of records 31 above a turntable 14 encloses an inner rotatable concentric spindle 4 provided at its upper end with an eccentric finger 5 adapted by the rotation of the spindle 4 to engage the central hole of the lowermost record and displace said record laterally to drop it down the stem 1 on to the turntable, the return of the finger to the inner position allowing the stack to move down the space of the thickness of one record to bring the next bottom record in readiness for the next operation. The lower end 21 of the spindle 4 is helically bevelled to fit in a slot 22 in a disc 23, which is rotated by a crank 29 and a suitable mechanism 30 to transmit rotation to the spindle 4. The stem 1 is detachably fitted from above into a fixed sleeve 11 and is correctly positioned and supported by a transverse pin 20 co-operating with a flat 19 on the bottom end of the stem 1. The turntable 14 is supported and driven by an outer sleeve 13 coupled to a motor by a worm gear 17, 18.
Patent GB-547253-A (GB)
Title: Improvements in or relating to the filtration of molten sulphur
IPC: C01B17/02
Filed: 1941-02-19
Abstract: 547,253. Filters; sulphur. DU PONT DE NEMOURS & CO., E.I. Feb. 19, 1941, No. 2245. Convention date, March 9, 1940. [Class 46] [Also in Group III] In filtering molten sulphur, a cake of separated matter built up on a filtering element is held in position by applying steam or gas pressure to the fitter while molten sulphur is being withdrawn therefrom and is removed by applying a back fluid pressure to the filter element, the cake being slurried with water. to bring it into a granular form. The filter shown has tubular filter elements 18, e.g. of carborundum or carbon, supported from a plate 21 in a casing 1 having a steam jacket 5 which is extended to enclose an inlet pipe 10 for the molten sulphur. The filtered sulphur passes through tubes 20, which have openings 32 at their lower ends, into a jacketed collecting chamber 23 from which it is discharged through a pipe 28. When the cakes are to, be removed, steam or gas under pressure is admitted to the casing 1 through pipes 15, 12 to hold the cakes on the elements until the sulphur has been removed from the casing through a valve 4. Steam, with or without water, is then admitted through a pipe 30 to the chamber 23 and creates a back flow through the elements to detach the cakes, water being supplied through a pipe 16 to form the granular slurry if a back flow of steam only is used. Valves 31 are provided at the upper ends of the tubes 20 so that the back flow may be directed through each element in turn. The pipe 12 may be connected to a vertical pipe with open ends 13, 14.
Patent GB-1144538-A (GB)
Title: Improvements in or relating to devices for measuring the thickness of members of ferromagnetic material
IPC: G01B7/06
Filed: 1968-01-16
Abstract: 1,144,538. Measuring thickness. H. NIX and E. STEINGROEVER. Jan.16, 1968 [Sept.6, 1967], No.2274/68. Heading G1N. In apparatus for measuring the thickness of a member or layer of ferromagnetic material such as iron, nickel or cobalt, the magnetic flux of a permanent magnet 4 is divided between a measuring path 14 including a portion of the member or layer 10 the thickness of which is being measured and a shunting path 15, the flux in one of the paths being measured to determine the thickness, and the flux in the measuring path being removable so that the apparatus may be easily applied to and removed from the member or layer. The embodiment shown in Fig. 1, comprises a permanent magnet 4 having polepieces 5, 6 and being mounted for axial movement within a magnetically soft iron housing 1, the lower part of the wall of which is divided by a brass ring 7 to define the two flux paths. When the magnet is raised, Fig. 2 (not shown), no flux flows through the lower portion of the housing. Stops (not shown), may be provided to limit the downward movement of the magnet so that the sensitivity and range of measurement may be adjusted to suit different thicknesses of materials. A Hall probe or a magnetostrictive element 11, disposed in a slot in the brass ring 7 is connected into a measuring bridge circuit. A switch 13 automatically disconnects the battery from the bridge circuit when the magnet is raised. In a modification, the magnet remains stationary and a ferromagnetic shunt is displaced or rotated to vary the flux in the measuring path. In another embodiment, Fig. (not shown), the flux in the measuring path is adjusted by varying the current flowing in a winding (24) disposed around a magnetically soft ferromagnetic polepiece (20) having a high saturation, e.g. an iron-cobalt alloy containing 20 to 60% cobalt. The form of the external pole surfaces may be suited to the form of the member, e.g. the external or internal profile of tubes, tanks, and ships sides. Preferably the member or layer is fully saturated.
Patent GB-329673-A (GB)
Title: Improvements in or connected with needlework boxes, baskets and similar receptacles
IPC: D05B91/14
Filed: 1929-01-23
Abstract: 329,673. Bonvin, A. M. Jan. 23, 1929. Reel holders and cases.-A needlework box &c. comprises a reel spindle 4 of D-shape in cross section, a single guide bar 8 disposed parallel to the spindle and carried, with the spindle, by one or more bearing plates 2 mounted in the box or lid thereof, eye-ended slots 9 in the bar 8, reels 5 mounted in the spindle, washers or discs 6 having apertures of D-shape and mounted to slide on the spindle between adjacent reels, a compression spring 7 on the spindle bearing against the end washer or disc and a single removably fixed cutter 11 mounted on the bar in front cf an indentation 12 therein with its edge below the edge of the bar. As shown, the spindle and guide bar are detachably mounted horizontally in clips 3 on a pair of bearing plates in the box 1 but they may be arranged vertically on a single bearing plate secured in the box, in which case the free end of the spindle is provided with means to retain the reels thereon. The bearing plates may be slidably mounted in ledges or runners in the box and may be connected to the lid so that when the lid is opened the bearing plates Ac. are raised out of the box. Trays or receptacles may be accommodated in the box for securing requisites and one or more rotatable frames may be mounted in the lid to carry skeins of wool.
Patent GB-126752-A (GB)
Title: Improved Machine for Elevating Hay or other Crops.
Inventor: EVANS JOHN ARTHUR
IPC: A01D87/02
Filed: 1918-07-18
Abstract: 126,752. Evans, J. A. July 18, 1918. Hay-loaders.-In a machine for elevating hay and like crops into wagons &c., in which the hay is pushed up a tube or channel by propellers carried by endless chains, the propellers are withdrawn from the tube while lying in a plane substantially at right-angles to the direction of movement of the hay. The endless chains a pass round sprocket wheels 3, 4, 5 mounted on a triangular frame A. The sprocket wheels 4 are driven from one of the ma.in wheels 1 by a chain 2<a>. The propellers or boards a<1> are pivotally connected to the endless chains a, and are provided with brackets or elbows a<3> which bear against the surface of the frame A and thus hold the propellers a<1> in the position shown as they pass up and withdraw from the elevator tube B. After withdrawing from the tube, the propellers engage a projection A<5> which turns them about their pivots. as shown. The hay is collected below the tube B by a rake C mounted on wheels 7, 8.
Patent GB-306126-A (GB)
Title: Improvements in kinematograph apparatus
IPC: G03B1/42
Filed: 1929-01-23
Abstract: 306,126. Morsbach, K. Feb. 16, 1928, [Convention date]. Kinematograph apparatus. - The film leaving the gate is held in uniform contact with a brake by a spring-tensioned roller 18; the bracing action may be effected by the walls of a easing 14 enclosing the intermittent mechanism. As shown, a channel is formed in the fear and lower walls, and part of the front wall, of the casing 14, and is provided with rubber strips engaging the film margins. The roller 18 is carried by an arm pivoted at 15 and held by a spring 17. The film passes from the roller 18 to the take-up spool 3. A roller 9 carried by a pivoted arm 6 held by a spring 7 is also provided, and the film from a spool 1 passes over the roller 9 to the gate. The apparatus comprises a lamp house and a driving motor in a casing; the motor drives a belt pulley geared to a large pulley 21 to rotate the spindle carrying the spool 1 in the direction of the arrow 22, and a small belt pulley on this spindle drives a large pulley on the spindle carrying the take-up spool 3. The Specification as open to inspection under Sect. 91 (3) (a) comprises also an improved clawfeed mechanism, and constructions of spool and spool-carrying spindles. Each spool-carrying spindle is formed with an angular portion 33, Fig. 2 (Cancelled). capable of engaging a hole of similar shape in one of the side plates of each spool, and with a slot 26 containing a spring 27 formed with corrugations 29, 30. The spring may hold the spool in the position shown, so that it is rotatable relatively to the spindle, or so that its side plate is engaged by the portion 33 and relative rotation is prevented. The feed mechanism, contained in the casing 14, comprises a claw rod 38, Fig. 3 (Cancelled), mounted on crank pins 37, 39, the pin 37 being mounted on a wheel 36 which drives a wheel 47 through intermediate gearing. The pin 39 is carried by a link 40 carried by a pin 41 on a T-piece 42 which is pivoted about the axis of the wheel 36, and is connected by a link 45 to a pin 46 an the wheel 47. The mechanism is such that the claw moves in a straight path when in engagement. with the film, and is also such that the claw engages the film only once during several downward movements, thus producing quick feed movements. This subject-matter does not appear in the Specification as accepted.
Patent GB-371451-A (GB)
Title: Improvements in or relating to watch glasses
IPC: G04D3/06
Filed: 1931-01-23
Abstract: 371,451. Watch glasses. BAKELITE CORPORATION, 247, Park Avenue, New York, U.S.A.-(Assignees of Lindhe, H. E. ; 4347, Ellis Avenue, Chicago, U.S.A.) Jan. 23, 1931, No. 2353. Convention date, Jan. 24, 1930. [Class 139.] A watch crystal is made from a synthetic resinoid by applying heat and pressure at the deformable temperature of the resinoid (e.g. 400‹ F.) to a thin piece of the material and cooling under pressure. The resinoid is preferably one of the condensation products of a polyhydric alcohol (e.g. glycerol) with a polybasic acid (e.g. phthalic anhydride), generally known as alkyd resinoids. Instead of these, phenol-formaldehyde resinoids may be used, particularly those to which a high-boiling plasticizing agent has been added ; or phenol-formaldehyde resinoids treated with urea, as disclosed in Specification 280,520, [Class 2 (iii), Dyes &c.]; or resinoids obtained by the reaction of urea and formaldehyde. The watch crystal is shaped and cooled under pressure and cut to size and is inserted in the bezel by a clamp 17, 18, shown'in the Figure. The crystal 15 is reheated until softening commences and is pressed by spring 19 into the bezel groove. A crystal too large may be inserted by the reverse process or the crystal may be merely sprung into the bezel. The crystal (about 1 millimetre thick) is sliced from a plate or rod; and in a modified process is shaped and cut to size in a single operation.
Patent GB-316197-A (GB)
Title: Improvements in and relating to machine guns
IPC: F41A9/74
Filed: 1928-01-25
Abstract: 316,197. Janecek, F. Jan. 25, 1928. Machine guns.-The drum magazine 8, Fig. 2, of a recoiling-barrel machine gun is rotated by a spring 9 strained by a member 10 directly engaged by the barrel on recoil. The spring reacts through a bell-crank lever 11 and slide 13 to rotate the drum bv means of a spring-controlled pawl 14 on the slide. The feed of the cartridges 25, Fig. 3, from the magazine to a chamber x cleared by the breech-bolt is regulated by a pair of links 18, 17 having a spring-controlled joint 23, one end of the link structure being connected by a spring joint 22 to the gun casing 5 and the other end carrying a spring-pressed tongue 16 which controls the feed of the cartridges to the chamber x.
Patent GB-241775-A (GB)
Title: Improvements in barriers for railway level crossings
IPC: B61L29/02
Filed: 1925-01-28
Abstract: 241,775. Zannoni, G., and Dabbene, C. Jan. 28, 1925. Operating barriers by weights and from a dist. ance by hand; indicating and signalling operation of barriers. - The barriers of railway crossings that are balanced by a weight and adapted to be controlled from a distance are operated by the movements of a drum that is subject to the opposed actions of a motor weight and a control cable, the closing movement of the barrier being retarded by a pendulum escapement. The device has means also to give a sound signal during the operation of the barrier. In the arrangement shown, a drum E is loosely mounted on a shaft P, to which is secured a pulley G at one end and the counterbalanced barrier at the other end. To the drum is secured a disc F, a wheel R that sounds a warning gong, not shown, and a ratchet-wheel C. A weight L tends to rotate the drum E in the opposite direction to the pull of a cable T that is under the control of an operator at a distance. When the cable is slackened, the weight L rotates the drum, and the wheel C and pawl D rotate the wheel A. This wheel A is under the control of an escapement B that thus regulates the movement of the drum E and the lowering of the barrier. When the cable is pulled to raise the barrier, the escapement is inoperative. In the movement of the disc F as the weight L is lowered, the cam V engages a pawl I and releases it from a notch M of the disc G. Continued movement of the disc F brings the stud H<1> into contact with a stud H on the disc G, which then moves with the disc F, rotates the shaft P, and lowers the barrier. When the barrier is horizontal, the pawl T engages the notch M<1> in the disc G and the barrier is freed in the operative position. When the cable T is pulled, the barrier begins to open when the disc F has turned sufficiently for the tooth H<1> to engage with the other side of the tooth H.
Patent GB-913581-A (GB)
Title: Production of formaldehyde
Filed: 1961-01-23
Abstract: Formaldehyde is produced by oxidising methane and/or homologous paraffin hydrocarbons in the gaseous phase with oxygen or air in the presence of a catalyst, the gaseous reaction mixture being passed through a porous fixed bed of the catalyst and then through a metal mesh adjacent to the porous bed, the mesh being formed of a transition metal of Group I or VIII of the Periodic System, or an alloy of two or more of such metals.  The preferred catalyst is pumice and the mesh is preferably formed of copper, platinum, iridium, silver or gold or of an alloy of two or more of these. Oxides of nitrogen, or ammonia which is oxidised to nitric oxide during the reaction, may be added to the reaction mixture. Examples are given of the oxidation of methane and propane to formaldehyde.
Patent GB-802482-A (GB)
Title: An optical apparatus comprising a focusing device
IPC: G02B27/40
Filed: 1955-01-28
Abstract: 802,482. Focusing devices. MEOPTA, NARODNI PODNIK. Jan. 28, 1955 [Feb. 18, 1954], No. 2611/55. Classes 97(1) and 98(1) In optical apparatus comprising a light source, an image-forming optical system and a focusing device with slits which, when imaged by said system, give two line images which are apart when the apparatus is out of focus but merge into a continuous straight line when sharp focusing subsists, the focusing device comprises as shown in Fig. 1 a diaphragm 3 in a plane normal to the optical axis and having a straight slit 4, two additional diaphragms 1, 1<SP>1</SP> parallel to diaphragm 3 and two additional diaphragms 2, 2<SP>1</SP> also parallel to diaphragm 3 and at the same distance therefrom as diaphragms 1, 1<SP>1</SP>, so that the edge 7 of diaphragm 1 co-acts with edge 8 of diaphragm 2 to form an additional slit extending one half the length of slit while edges 7<SP>1</SP>, 8<SP>1</SP> of diaphragms 1<SP>1</SP>, 2<SP>1</SP> co-act to form a similar additional slit. The co-acting edges of the two slits of additional diaphragms may be disposed in planes passing through the edges of slit 4 and parallel to the optical axis or may be spaced from such planes. The co-acting edges and slit 4 may be provided by two members 5, 6 as shown in Fig. 2. The optical apparatus may be a photographic enlarger, an optical projector or the combination of a telescope, collimator and light source. U.S.A. Specifiction 2,595,495 is referred to.
Patent GB-652791-A (GB)
Title: Improvements in or relating to photographic cameras
IPC: G03B17/08
Filed: 1948-01-28
Abstract: 652,791. Support and shutter-release mechanism for photographic cameras. CUCHET, R. Jan. 28, 1948, No. 2619. [Classes 97 (i) and 98 (i)] A support removably attached to a photographic camera has a hand grip with a spring - loaded finger-operated shutter release mechanism. As shown, the hand grip 3 has a central threaded rod 4 attaching it to the tripod bush 6 of the camera 1, and carries a casing 12 divided by a partition wall. One compartment houses a lever 9 terminating in a trigger-shaped piece 8 sliding between cheek pieces 7 on the grip, and moves in guides 17, 18, when the trigger is pressed, against the action of a spring 11 to depress the camera shutter release 2 by its head 10. The other compartment of casing 12 may house accessories. Specification 370,648 is referred to.
Patent GB-844866-A (GB)
Title: Process for the manufacture of partially acylated polyvinyl alcohol
IPC: C08F8/12
Filed: 1957-01-24
Abstract: In a process for the manufacture of partially acylated polyvinyl alcohol by the hydrolysis of carboxylic acid esters of polyvinyl alcohol at a raised temperature in the presence of water and an acid catalyst, the ester is hydrolysed to a desired content of aryl groups, the hydrolysis catalyst is eliminated, the resulting mixture is subjected to vibration while the carboxylic acid formed is removed by extraction, and the carboxylic acid and extraction agent are recovered from the extract by fractional distillation.  The catalyst can be eliminated mechanically or by neutralization e.g. to a pH of 2,0 to 2,5.  The carboxylic acid can be extracted with ethyl acetate, ketones or ethers, either alone or in admixture with a sparingly water-soluble liquid such as benzene, cyclohexane or trichlorethane. Vibration can be produced by a solid oscillating in the liquid, by an oscillating diaphragm or by a pump.  In examples, the process is applied to polyvinyl acetate hydrolysed to 25 and 15 mols per cent, respectively, of acetyl groups with mixed sulphuric and naphthalene sulphonic acids and with perchloric acid.  Extraction is effected with a mixture of ethyl acetate and benzene.
Patent GB-236479-A (GB)
Title: Improvements in or relating to sound producing toys
IPC: A63H3/18
Filed: 1925-01-30
Abstract: 236,479. Goldberg, F. Jan. 30, 1925. Animals.-A cord j is connected to a pivoted jaw member f, and to sound-producing means, such as bellows k, so that a sound is produced simultaneously with the movement of the jaw, the bellows being kept open by a spring t and the jaw closed by resilient means such as elastic. A tube p from the bellows has its outlet q close to the mouth, a cover plate r having an opening s for the passage of 'the sound. The bellows k is preferably mounted in a casing u secured to the casing b forming the head. The jaw f may be formed with a tongue and teeth.
Patent GB-824763-A (GB)
Title: Improvements in or relating to machine drives
IPC: B23C9/00
Filed: 1955-01-31
Abstract: 824,763. Electric motor driving arrangements. ASQUITH Ltd., W., and JOHNSON, A. Jan. 31, 1956 [Jan. 31, 1955], No. 2807/55. Class 35. A system for selecting a drive from one of a plurality of motors to obtain speed change for a machine tool drive comprises two or more differential gears. As shown, the load shaft 106 is driven by one sun-wheel 104 of a differential having planet wheels 84 whose cage is wormdriven by a motor 22 giving a quick traverse motion, and a second sun-wheel 93. This is connected by a shaft 94 to one sunwheel 66 of a further differential whose planets 64 are worm driven by a motor 20 for microsetting motion, and whose other sun-wheel 30 is worm-driven by motor 18 providing a variable feed motion. Further stages may be added.
Patent GB-372332-A (GB)
Title: Improvements in tobacco pipes
IPC: A24F1/16
Filed: 1931-01-28
Abstract: 372,332. Tobacco pipes. MARTIN, L. L., 3, Benlamond Avenue, Toronto, Canada. Jan. 28, 1931, No. 2823. [Class 130.] A metal member 1 inserted in the stem of a pipe permanently encloses a corrugated sleeve 10 and a core 11. Tobacco smoke enters holes 3 in the member, and is deflected by a notch 16 in the core 11 into one of a series of channels 12, 13 formed between the core and the sleeve, or the sleeve and the member 1. These channels communicate with one another at opposite ends of the member 1 and provide a sinuous smoke passage. The smoke escapes past a notch in the core and a hole 7 in the member 1 into the mouthpiece. Washers 17 which seal the ends of the channels in the core and sleeve in the member 1 are retained by swaging the ends of the member 1. In a modification, a longitudinally profiled cylinder of wood may be placed in the member 1.
Patent GB-158795-A (GB)
Title: Improvements in or relating to springs for motor vehicles and the like
IPC: F16F1/18
Filed: 1920-01-30
Abstract: 158,795. Stevens & Co., Ltd., A. J., and Stevens, A. J. Jan. 30, 1920. Laminar springs.-The longest lamination of a laminated spring for motor and other vehicles is strengthened by an additional lamination rigidly connected to the end thereof but free to move lengthways in relation thereto when the spring is deflected. As shown, the longest lamination 2 of the spring 1 is duplicated, the inner member 3 of the duplicated lamination being bolted at its end to the lamination 2 and the axle or other part of the vehicle, and being split diagonally at 4 to permit relative motion between its two parts.
Patent GB-354269-A (GB)
Title: Priming composition and process for producing same
IPC: C09J1/00
Filed: 1930-01-28
Abstract: A cement or priming composition for closing joints of wood or metal or for counteracting surface irregularities comprises ground coal clinker having less than 5 per cent of calcium and a binding medium. The clinker is said to contain a high percentage of chemically inert silica.ALSO:A composition or primer for closing joints of wood or metal or for counteracting surface irregularities comprises ground coal clinker having less than 5 per cent of calcium, and a binding agent.  The clinker is said to contain a high percentage of chemically inert silica.