baber/WOPTO huggingface dataset:
Patent GB-290731-A (GB)
Title: Controlling gear for centrifugal compressors
IPC: F04D27/02
Filed: 1927-02-18
Abstract: 290,731. Naumann, A., and Gutehoffnuugsh³tte Oberhausen Akt.-Ges. Feb. 18, 1927. Regulating or controlling. - In centrifugal compressors with a control device comprising a back-pressure or non-return valve on the pressure side and a cut-off device that is located in front of the suction openings of the first impeller and is arranged to close automatically with the evacuation of the compressor space, the back-pressure valve 6 is arranged in a collecting chamber 5 joined to the annular diffuser chamber of the last impeller. The collecting chamber 5 is divided by walls to form separate chambers, each of which is provided with a non-return valve, as shown in Fig. 2. The control for the cut-off device 3 is shown in Figs. 1 and 3. Air is fed to the compresser through the conduit 1 and passes through a rotary valve 3 to the suction opening 4 of the first impeller, the air being forced by the compressor into the collecting space 5. The air that passes the non- return valves 6 is led by a pipe 7, 8 into the air-pressure system 9, a manually-operable cutoff valve 10 being provided. The valve 3 is controlled by the pressure difference on either side of a nozzle 11 arranged in the suction conduit 1. When air is passing to the compressor, this pressure difference serves to depress a float 15 carrying contacts 16, the circuit of the electromagnet 17 being then interrupted. A weight 18 then falls and the valve 20 is moved to close a conduit 19 and open the cylinder 21 to exhaust, the valve 3 being kept open by a weight 29 and spring 23, as shown in the dotted line position in Fig. 3. When the compressor begins to pump so that the pressure difference between 12, 13 is diminished sufficiently, the float 15 rises and closes the circuit of the electromagnet 17, the weight 18 is raised, and the valve 20 moved to allow pressure from the pipe 19 to enter the cylinder 21. This forces the piston 22 to the left and a roller 24 moves the lever 25 to the left to close the valve 3 against the action of a spring 23, a pawl 26 holding the valve in the closed position. At the same time, air under pressure acts through the pipe 31 to open the valve 27 and establish communication between the compression space and a conduit 28 then to exhaust the compressor. When the demands upon the system have reduced its air-pressure to a predetermined degree, the spring 23 is able to move the piston 22 to the right, the pawl 26 is raised by the shoulder 32 to release the lever 25 and the weight 29 rotates the valve 3 into the open position, when the compressor is again able to function, the valve 27 being closed by the air pressure in the compressor. The pressure difference between 12, 13 is again established and the float falls for the valve 3 to be kept open until the compressor begins to pump in a reduced warmer, as previously described.
Patent GB-746626-A (GB)
Title: Improvements in flyers for textile machines
Inventor: RIDGWAY FRANK
IPC: D01H13/10
Filed: 1954-02-17
Abstract: 746,626. Flyers. ARUNDEL, COULTHARD & CO., Ltd. July 15, 1954 [Feb. 17, 1954], No. 4628/54. Class 120 (2). A flyer c comprising a metal cap having a rolled-over edge d is characterized in that a renewable and self-threading yarn guide h is located in a cut-away portion g of said rolled edge d, the guide being made of a piece of wire with its ends pointing in opposite directions and with a double hair-pin bend in planes at rightangles to one another located between such ends but nearer to one end than the other, the longer end being first forced into the hole at one side of the cut-away portion so that the shorter end can be pressed into the cut-away portion g and then into the hole in the other side of the cut-away portion, the guide h being thus moved to bring the double hair-pin bend into the cutaway portion with the open side of the guide facing the desired direction to give the guide self-threading properties. To control the amount of resistance to the rotation of the flyer c a steel disc k loosely mounted around the fitting m into which the spindle e of the flyer projects is driven by a pin n through a hole in the cap and rests on a felt or other type of friction material o.
Patent GB-451786-A (GB)
Title: Improvements in electrical phase-shifting networks
IPC: H04N5/04
Filed: 1935-02-13
Abstract: 451,786. Phase changing. WILLANS, P. W., Quality House, Quality Court, Chancery Lane, London, and BAIRD TELEVISION, Ltd., 58, Victoria Street, Westminster. Feb. 13, 1935, No. 4690. [Class 38 (ii)] A voltage adjustable in phase is derived from tapping points on a closed resistive circuit R fed with phase displaced current from transformers T1, T2 which are fed respectively from a common A.C. source through a condenser C and inductance L. The sections of resistance in the circuit R may be graded in magnitude so that the derived voltage may be of constant amplitude, even through the movable contacts are maintained at diametrically opposite points. Specification 438,419 is referred to.
Patent GB-452836-A (GB)
Title: Improvement in or relating to the frames of spectacles and the like
IPC: G02C5/18
Filed: 1936-02-17
Abstract: 452,836. Spectacle frames. BIRKENSTEIN, F., (trading as BIRKENSTEIN & CO., F.), 147, Mainzerslandstrasse, Frankforton-Main, Germany. Feb. 17, 1936, No. 4745. Convention date, May 16, 1935. [Class 97 (i)] In spectacle arms which are made in two parts one of which is curved and is pressed resiliently against the side of the head, the two parts 1, 2 are connected together by a metallic wire 4 which is secured at its ends 5, and is freely movable within the arm for the greater part of its length, the part 1 of the arm being pressed against the head by the wire. At the junction 3 of the parts 1 and 2, the wire may be surrounded by a collar 6 to strengthen the arm, or, if the arm is made of pliable material, the wire may be contained in a casing 4a Fig. 2, to give stability. The wire may comprise several strands twisted together.
Patent GB-360300-A (GB)
Title: An improved method of constructing frame buildings
IPC: E04B2/56
Filed: 1931-02-16
Abstract: 360,300. Wooden framed buildings. WATKINS, C., 28, St. Martin's Place, Lewes Road, Brighton. Feb. 16, 1931, No. 4903. [Class 20 (iv).] Wooden framed buildings are formed of sill beams 2 bolted to concrete pillar footings 1, uprights bolted to the. beams 2, and beams 22, 25 bolted to the tops of the uprights, the cavity wall being completed by inner panels 7, outer boards 9, and intermediate boards or panels 28. The roofframing comprises a wall plate 27, main beams 36, ceiling joists 36a, transverse beams 29 bracketed to the beams 36, and rafters 30. The floor frames 5 are bolted to the sill beams, and ventilation apertures 15 are formed in the pillars 1.
Patent GB-547369-A (GB)
Title: Improved edison-screw lamp extractor and replacer
IPC: H01K3/32
Filed: 1941-04-17
Abstract: 547,369. Holding devices. LEIGH, E., and ROTHERHAM, E. April 17, 1941, No. 5016. [Class 61 (ii)] A lamp extractor comprises a triangular base plate, jaw carrying members hinged intermediate their ends to pivots provided on the upturned corners of the base plate and normally held in open position by tension springs, shoes vertically pivoted to the jaw carrying members of tubular steel and chamfered at the upper end to provide sharp edged means for extracting the cap of a broken lamp and lined partly spherical jaws attached to the shoes by wing nuts, the assembly being attached by a socket &c. to a long pole &c. and operated by a spiral spring attached to the three jaw carrying members and connected to a control wire or cord terminating in a rod adapted to be gripped by a clamp bolt and nut passing through the pole &c.
Patent GB-397182-A (GB)
Title: Improvements in or relating to slub-catchers and cleaning devices for yarn or the like
IPC: B65H63/06
Filed: 1932-02-19
Abstract: 397,182. Yarn clearers. TENNANT, W. J., 111, Hatton Garden, London.- (Universal Winding Co. ; 95, South Street, Boston, U.S.A.) Feb. 19, 1932, No. 5038. [Class 120 (ii).] A slub-catcher comprises two parallel cleaning members between which the yarn is drawn, one of which is a rotatably mounted pin, the bearing surface of which offers alternative setting faces arranged to abut directly against the fixed member, so that by rotating the pin, the distance between the two cleaning members may be adjusted. Resilient means are preferably provided for holding said setting face in engagement with the other member. Yarn is drawn between the fixed plate 25 and the pin 35 which has an eccentric portion 37 rotatably held in contact with the edge 26 of the fixed plate 25 by a resilient clamping member 30. Adjustment of the slit is effected by inserting a key in the recess 42 and rotating the pin 35. The clamping member 30 is provided with a finger 33 engaging a groove in the pin 35 to prevent axial displacement of the pin, and also with an upturned finger 36 which locates the detector wire 12 of a stop-motion, a member 43 serving to limit the movement of the detector upon yarn breakage. The assembly may conveniently be mounted by a screw 22 on the bracket 16 of a grid type tensioning arrangement. In a modification, the eccentrically disposed portion 37 of the pin 35 may be replaced by a portion having ratchet teeth of varying depth, the edge 26 of the plate 25 being adapted to abut against the ratchet teeth.
Patent GB-1197144-A (GB)
Title: Coated Stopper Head
IPC: B22D41/18
Filed: 1969-01-29
Abstract: 1,197,144. Stoppers for ladles and tundishes. VESUVIUS CRUCIBLE CO. 29 Jan., 1969 [26 Aug., 1968], No. 5066/69. Heading F4B. A stopper head for controlling the out-flow of molten metal through the nozzle of a tundish or ladle comprises a stopper head body coated with insulating material. The coating which comprises unfired finely divided insulating material mixed with a binder is preferably formed in situ on the stopper head body by dipping, brushing or spraying. Examples of suitable insulating materials are dolomite, magnesite, expanded clay, refractory impregnated paper, plastics (ablation type), exothermic materials, amorphous carbon and pyrolytic graphite. Examples of binders are dextrose, starch and phosphoric acid.
Patent GB-108284-A (GB)
Title: Improvements in Ice Creepers for Horse Shoes.
Inventor: RILEY HARRY LANDIS
IPC: A01L7/08
Filed: 1917-04-11
Abstract: 108,284. Riley, H. L. April 11, 1917. Renewable calks.-A channelled plate b applied across the toe part of the shoe carries calks c. The flanges b<2> of the plate fit over top part of the shoe and under the arch a<5>, Fig. 3, of the horse's hoof a<4>. The plate is secured in position by screwing in the calks, which are provided with loose pins fitting in central holes in the calk stems and biting-in edges c<4>, and by set-screws c<1>. The plate may be in two parts hinged together at d.
Patent GB-492504-A (GB)
Title: Improvements in supports for doors and the like
IPC: E05C17/32
Filed: 1938-02-18
Abstract: 492,504. Stays for hinged doors. FORD MOTOR CO., Ltd. Feb. 18, 1938, No. 5097. Convention date, July 6', 1937. [Class 65 (i)] A stay for a door &c. comprises a pair of bars 12, 18 which may be telescopically connected by pins 19 and slot 13 as shown in Fig. 2, or pivoted together as shown in Fig. 12. The upper bar 18 or 29 carries a pivoted star-wheel 16 which co-operates with a cam surface 21 .. 23 on the other bar, to maintain the stay in fixed position. Further relative movement between the bars turns the wheel to another position in which relative movement between the bars in the reverse direction is permitted to close the door.
Patent GB-344188-A (GB)
Title: Improvements in friction chain gripping appliances
IPC: B25B13/52
Filed: 1930-02-15
Abstract: 344,188. Chain wrenches and vices. ABEL, J. H., 29, Northern Road, Plaistow, London. Feb. 15, 1930, No. 5123. [Classes 61 (ii) and 61 (iii).] A chain wrench for round, hexagonal, &c. work comprises a cam lever 2 with a cam portion 4 to which the chain 1 is pivoted on a pin 12, the free end of the chain being engaged by a hook 5. The chain may be locked by a pivoted stirrup 6 adapted to hold the chain rollers pressed against corrugations on the edge of the lever 2 ; the stirrup is held in locking postion by a screw or pin 7. In a modification, Fig. 3, adapted for use as a pipe vice, increased pressure may be put on the work by a wire strainer 9 connected at one end to the lever and at the other end to a projection 8 on the chain.
Patent GB-1006853-A (GB)
Title: Installation for dual control of the pedals in motor vehicles
IPC: B60K23/00
Filed: 1964-02-07
Abstract: 1,006,853. Vehicle dual control arrangements. INDUTECNICA S.A. Feb. 7, 1964 [Sept. 6, 1963], No. 5228/64. Heading B7H. Secondary control pedals 9, 10 of a vehicle are connected through piston-cylinder devices 7, 8 and hydraulic lines 5, 6 with pistoncylinder devices 1, 2 the piston rods of which are clamped at 23 to the main pedals 3, 4. Although only two pairs of pedals are shown it is intended that pairs of brake, clutch and accelerator pedals should be provided. The devices 1, 2 each contain a piston 18 (Fig. 4) which engages the end 18<SP>1</SP> of a piston rod 17 when the secondary pedal is depressed to operate the main pedal and a spring 24 which lifts the piston 18 from rod 17 when the secondary pedal is released but the main pedal is depressed. The devices 1, 2 are mounted on a common member 11 with straps 14, 15 for attachment to a steering column and are provided with bleed valves 33; the secondary pedals 9, 10 and devices 7, 8 are mounted on a plate with a rubber base.
Patent GB-114056-A (GB)
Title: Improvements in Apparatus for Soldering Sheet Metal Vessels.
IPC: B23K1/00
Filed: 1917-04-14
Abstract: 114,056. Gilkes & Co., G., and Bennett, G. H. April 14, 1917. Addition to 15227/15. Soldering. - Consists of improvements in the guide-rails, fluxing device, and wiper described in the parent Specification and in providing a supplementary carrier which has positive action. The fluxing - device comprises a rotary brush 102 dipping into the liquid and projecting between the extensions 104, Fig. 7, of the lips of the solder slot. The wiper comprises a cloth or hair buff 108 riveted between leather washers an d driven through chains 113 from the main shaft 77. The bar 111 is adjusted by means of a slot and bolt as the wiper wears. The rails 3 are of anglebar with upturned lips 3<x>, Fig. 6, to engage the bodies and on the supports 121, 129, Figs. 6 and 7, thereof, chain wheels 96, 97 carrying chains 95, Fig. 1, are mounted, the chainshaving fingers 99 to engage the ends of bodies and being driven from the shaft 77 by gearing, (not shown), at the same speed as the upper conveyer band. Guards 100 may be provided and the supports 121, 129 are adjusted to and from the centre line of the machine by right and left handed screws mounted in the framing 1. The supports 129 move in slides in the framing but the supports 121 move with the feathered bosses 122 of the chain wheels 96 along a spindle 125 mounted on the framing. When the adjustment has been made, the supports 121 &c. can be secured by set-screws and collars 128.
Patent GB-783684-A (GB)
Title: Feed roll driving means for duplicating machines
Inventor: LEVIN CARL ARNOLD
IPC: B41L39/06
Filed: 1956-02-21
Abstract: 783,684. Copying documents; feeding sheets. DITTO, Inc. Feb. 21, 1956, No. 5311/56. Classes 100(1) and 100(2) In a duplicating machine having a rotatable drum 13 and impression roller 16, primary means actuated by rotation of the drum 13 to initiate the rotation of a feed roll 17 as the drum passes through a predetermined angular position, and auxiliary means for driving the feed roll after it has been set in rotation by the primary means are provided. The machine comprises a feeding throat 30 from which sheets are directed to the bite of feed rollers 17 and 18. The driven feed roller 17 is moistened by a spray tube 27, a wiper 28 being also provided. At one side of the machine a groove cam 36 is adjustably mounted with respect to the drum shaft 12 by means of screws 38 and slots 39 so that by shifting the angular position of the cam 36 the time at which the feed is commenced may be varied with respect to the angular position of the drum. The cam 36 co-operates with a cam follower 37 mounted on a toothed segment 31 pivoted at 32 so that the segment is oscillated. The teeth 33 of the segment 31 co-operate with a pinion 34 which is connected through a unidirectional drive to an extension of the shaft 19 of the roller 17. The segment 31 and pinion 34 constitute the primary means for initiating movement of the feed roll 17. The secondary driving means comprise a sector 45, a frictional wheel 46 driven thereby and gearing between the wheel 46 and the roller 17. The segment 45 is adjustably mounted as by screw 47 on the other end of the shaft 12 of the drum 13. The friction wheel 46 is supported by a stub shaft 49 on a plate 50. The wheel 46 forms part of an idler assembly which includes a gear 53 adapted to rotate with .'the wheel 46. The gear 53 meshes with a pinion 58 on an extension of the other end of the shaft 19 of the roller 17. The plate 50 is provided with a circular recess so that it may be fitted over the bearing unit 22 of the extension of the shaft 19. The plate is mounted for pivotal movement about the shaft 19 by an eccentric bolt 60 and a screw 61 which passes through a slot 62 in the plate. Pivotal movement is effected by loosening the screw 61 and rotating the bolt 60 so that if desired, the wheel 46 may be disengaged entirely from the sector 45. The secondary driving means is adapted to come into operation at the time when the sheet is fed by the rollers 17 and 18 into the bite of the drum 13 and impression roller 14 thus preventing slippage between the sheet and the feed rollers .in the event that the length of the sheet is greater than the distance between the bite of the feed rollers 17, 18 and the bite of the drum 13 and roller 14. The peripheral length of the sector 45 is such that the roller 17 is driven until the sheet leaves the bite of the feed rollers. To this end different sized sectors, or overlapping or telescoping sectors may be used.
Patent GB-440530-A (GB)
Title: Process for the manufacture of a gonadotropic hormone
IPC: A61K38/24
Filed: 1935-02-19
Abstract: A gonadotropic hormone preparation is obtained from the blood plasma or serum of pregnant mares by first precipitating the proteins, without previous drying of the material, by addition of known protein precipitating agents, e.g. picric acid, trichloroacetic acid and sulphosalicylic acid, concentrating the liquid and precipitating the hormone therefrom.  The concentration must be effected at reduced pressure and the concentrate is preferably subjected to dialysis, the hormone being non-diffusible through a semi-permeable membrane.  The concentrate is preferably precipitated in two stages, first by the addition of a salt such as solid ammonium sulphate followed by redissolving the precipitate in water and a further dialysis to remove the precipitant, the solution being then precipitated by an organic water soluble substance, e.g. methyl or ethyl alcohol or acetone with the addition of a proportion of an electrolyte such as sodium chloride to increase the proportion of hormone precipitated. The hormone so precipitated is stated to be free from substances which give protein reactions.
Patent GB-1532768-A (GB)
Title: Monolithic structures
IPC: C04B38/00
Filed: 1977-02-09
Abstract: 1532768 Ceramic monolithic structure W R GRACE & CO 9 Feb 1977 [5 March 1976] 05360/77 Heading B1F [Also in Division Cl] A ceramic monolithic structure for use as catalyst support or heat exchanger comprises a sheet having a plurality of ribs in which the spaces between adjacent ribs in the direction perpendicular to the ribs are unequal in a regular repeating pattern over a length greater than 2 # times the thickness of the layers in the monolith. The repeating pattern may be geometric or arithmetic progression or a random pattern. The monolith may be prepared from a starting mixture of thermoplastic material, inert filler and plasticiser. Suitable fillers are oxides and hydroxides of silicon or aluminium, metal silicates, metal aluminates, clays, mica or zeolites especially mullite, zircon mullite, spinel and cordierite. A wide range of suitable plasticisers are specified and the thermoplastic material is preferably a polyolefin. Reference is made to Specification 1349400.
Patent GB-637704-A (GB)
Title: Improvements in or relating to lubricating or spraying apparatus
IPC: B05B9/08
Filed: 1948-02-24
Abstract: 637,704. Forcing liquids by gaseous pressure; pumps EXCELARC ENGINEERING CO., Ltd., GREEN, H. G., and CHANY, F. Feb. 24, 1948, No. 5416. [Classes 102(i) and 102(ii)] A grease or spray gun 20 is connected by a pipe 19 to a reservor comprising two cylindrical containers 10, 11 connected by cross tubes 12, 13. To supply air under pressure to the containers, a fitting comprising an adapter 16, for connection to a source of compressed air and a safety valve 17 is connected to the tube 12 so that 'it is protected from accidental damage when the containers are transported by being attached to a harness slung from the shoulders. A pressure gauge 14 is also provided.
Patent GB-925832-A (GB)
Title: Improvements in or relating to coal-cutting machines
Inventor: PROCTOR SIDNEY ERNEST
IPC: E21C27/04
Filed: 1960-02-16
Abstract: 925,832. Mineral-mining machines. AUSTIN HOY & CO. Ltd. May 1, 1961 [Feb. 16, 1960], No. 5493/60. Class 68 (1). Mounted at each end of the driving motorcontaining body 11 of a mineral-mining machine is a cutter chain-carrying loop jib 21 extending transversely of the body and about an area enclosing the cross-section of the body, whilst behind each cutting plane of the jib but ahead of the associated end of the body on which a jib is carried is means 32 that lies within the limits of the cut formed by the cutter chain to break up and shift laterally clear of the body mineral freed by the cutter chain. The means may be augers or a scraper conveyer having vertical, pick-armed scraper flights. Specifications 860,072, 813,719 and 811,490 are referred to.
Patent GB-322136-A (GB)
Title: Improvements relating to openers for tins or like containers
IPC: B65D43/26
Filed: 1929-02-19
Abstract: 322,136. Polak, B. Feb. 19, 1929. Rivets.-A hollow rivet for attaching a rotatable lid opener to the body part of a tin or like container is of the form shown in Fig. 2. The rivet is first applied ta the opener as shown in Fig. 3, the part 6<1> being formed into an enlargement 6 and part 9 being turned over an aperture in the opener; the narrow part 5<1> is then passed through an opening in the wall of the tin and upset into an enlargement 5, Fig. 1, between which and the part 6 the edge of the opening in the tin is gripped.
Patent GB-872759-A (GB)
Title: Improvements in and relating to refractory materials
IPC: C04B35/484
Filed: 1959-02-18
Abstract: A refractory composition containing zirconia, alumina and silica is produced by first fusing a mixture of zircon, alumina and a reducing agent such as charcoal, coke or aluminium to form an artificial zircite containing a higher proportion of zircon and a lower proportion of alumina than is required-the finished refractory and fusing this zircite with the required quantity of alumina or alumina and zircon to give the desired composition. The initial mixture contains 5% to 12% alumina by weight, the weight ratio of zirion, charcoal, alumina being 90 : 10 : 5-15 the resulting zircite having a composition of:- zirconia 75%-85%, silica 2%-8%, alumina 9%-17% and other oxides 0,5% to 0,7%. Examples of finished refractory compositions produced according to the method are:- ZrO2, 33%; Al2O3, 51%; SiO2 13,5%; Na2O, 1,7%; TiO2, 0,2%; Fe2O3, 0,3%; CaO + MgO, 0,3%, and also ZrO2, 40%; SiO2, 8%; Al2O3, 50%; impurities, 2%.  The extra alumina and zircon required may be added to the molten zircite formed in the first fusion process.