baber/WOPTO huggingface dataset:
Patent GB-955901-A (GB)
Title: Rotary indexing device
Inventor: TROLL DENNIS GRAHAM
IPC: F16H27/04
Filed: 1962-03-19
Abstract: 955,901. Toothed gearing. W. R. GRACE & CO. March 19, 1963 [March 19, 1962], No. 10434/62. Heading F2Q. A worm wheel 13 having in its periphery a series of hemispherical sockets 16 which loosely receive balls 15 retained by means such as a fixed ring 17 is engaged by a worm 11 having a variable-pitch thread of semicircular section, each turn of which includes an arc of zero lead so that the wheel 13 is intermittently indexed by one tooth-space for each rotation of the worm. There may be a hole 18 in the base of each socket 16 to provide a pocket for lubricant. In a modification dispensing with the ring 17 the balls are held in their sockets by fingers on plates fixed to the wheel 13.
Patent GB-1460313-A (GB)
IPC: B65H45/00
Filed: 1974-03-08
Abstract: 1460313 Folding garments C ARBTER 8 March 1974 [15 June 1973] 10444/74 Heading B8C  A device for folding garments includes a frame 4 around which a conveyer 21 having garment suspending clamps 22 runs. The garments are presented to a folding station comprising an arrangement of folding slides and folding plates 5-16 and a counterbearing plate 18 and after folding the garment is tipped into a take-off conveyer associated with fold retaining members for removal. The height of the conveyer 21 may be altered by motor driven screw threaded rods 26 and the frame 24 on which the conveyer is mounted may be moved bodily relative to the frame to alter the distance of the suspended article from the various folding elements. These adjustments enable the device to fold articles of varying sizes. The folding station includes a pair of longitudinal folding slides 5 and 6 and upper and lower transverse folding slides 10, 11 between which is located a counterbearing plate (18), these elements being located between the slides 5 and 6. Slides 10 and 11 and plate 18 are provided with vacuum apertures 13, 15, and 20 respectively, plate 18 is additionally provided with vertically running grooves 19, and slide 11 has a U-shaped cross-section the front wall of which is provided with vacuum apertures 15 and the rear wall of which is in the form of rods 16 slidable in the recesses of the counterbearing plate. Located in front of the transverse folding slides is a longitudinal folding plate 7 comprising a pair of movable apart parts 8 and 9. A transverse folding plate 12, movable from the side into a folding position over the plate 18 is also provided. In use, a garment suspended from clamp 22 hangs initially between the transverse folding slides and the counterbearing plate, which are in line with the longitudinal folding slides, and the parts 8 and 9 of the folding plate 7. Suction is applied to hold the garment against the slides and the plate to allow release of clamps 22. The parts 8 and 9 are then forwarded against the garment and the garment and the slides and plate moved in unison rearwardly, behind the plane of the slides 5 and 6 (see Fig. 6). These slides are then actuated to fold the longitudinal edges of the garment around the plate formed by parts 8 and 9. After this part 8 is lowered and the plate 12 moved across. The lower slide 11 is then forwarded and raised so that the front wall of it folds the lower part of the garment about the front side of the slide 12, the rods of the rear wall being accommodated during upward movement in the recess 19 of plate 18. Part 9 is then raised and slide 10 forwarded and lowered to fold the upper part of the garment over the plate 18 and the front wall of the lower slide 11. Finally the port 10 is withdrawn, as is the slide 12, the lower slide 11 is lowered away from plate 18 and pivoted about a shaft 17 to deposit the folded garment on to a a take-off conveyer.
Patent GB-105621-A (GB)
IPC: E04H12/28
Abstract: 105,621. England, A. April 20, 1916. Chimneys.-Hollow structures such as chimneys consist of two series of slabs A, B and tubular elements D, the slabs engaging the elements D by means of grooves d' on one side and open slots d on the other. Concrete C is filled into the tubular elements and grouting into the grooves to lock the slabs in position. The slabs may be flat or curved and of several sizes for tapering structures, and the grooves and slots may be opposite each other or otherwise as required. The tubular elements may be cylindrical or flat sided, and the interior and exterior may be concentric or eccentric; these elements are reversed in successive courses so that the slots and grooves alternate at the sides. Reinforcing-bars E may be provided in the concrete filling C, and horizontal belts of concrete with metal bars e may be formed at intervals in the height by means of battens wedged between the slabs. The spaces between the slabs may bo filled also with concrete.
Patent GB-1384706-A (GB)
Title: Pesticides
IPC: C07C279/12
Filed: 1971-04-21
Abstract: 1384706 Diguanidino alkane salts MURPHY CHEMICAL Ltd 29 March 1972 [21 April 1971] 10567/71 Heading C2C [Also in Division A5] Acid addition salts of compounds of formula wherein n is 8, 9 or 10 are prepared by conventional methods.
Patent GB-515516-A (GB)
Title: Improvements in dental alloys
IPC: C22C7/00
Filed: 1938-04-07
Abstract: 515,516. Coating metals with metals. BAKER & CO., Inc. April 7, 1938, No. 10636 Convention date, June 3, 1937. [Class. 82 (ii)] [Also in Group VI] Alloy particles for use in making dental amalgams are coated with a non-tarnishable film of amalgam by immersion in a solution of a soluble double cyanide of mercury-e.g., an alkali or alkaline earth metal cyanide. The common dental alloy containing at least 65 per cent. silver, 25 per cent. tin, and not more than 6 per cent. copper and 2 per cent. zinc is suitable for the treatment which is effected in a strongly alkaline solution. The Specification as open to inspection under Sect. 91 refers also to the treatment of alloy particles with soluble mercury salts such as the chloride, sulphate or nitrate, alcohol being added to prevent the precipitation of insoluble mercury salts such as calomel. This subject matter does' not appear in the Specification as accepted.
Patent GB-569923-A (GB)
Title: Improvements in catalytic hydrogenation of fatty acids and esters
IPC: C07C29/149
Filed: 1943-06-30
Abstract: The catalytic hydrogenation of fatty acids and esters to fatty alcohols is effected at elevated temperature and high pressure in the presence of a copper-containing hydrogenating catalyst, and a cadmium soap which is present in substantial amount, but less than the amount of acid and/or ester.  Up to about 10 per cent of the hydrogenating catalyst, e.g. copper chromite, and 5-20 per cent of cadmium soap, based on the total weight of the mixture to be hydrogenated, is preferred.  The acids or esters may comprise a major proportion of unsaturateds.  They may be derived from natural or hydrogenated glyceride oils, rosin, natural waxes or oxidized petroleum products, and esters such as ethyl esters are included.  Preferred reaction conditions are about 200-350 DEG  C., and hydrogen pressure above 2000 lbs./sq. in.  In examples: (1) a mixture of 85 g. oleic acid, 15 g. cadmium oleate, made by adding cadmium nitrate to potassium oleate, and washing and drying the precipitate, and 10 g. copper chromite, made by mixing copper nitrate and chromic acid, precipitating with ammonia, drying and calcining, is heated to 280 DEG  C. under a hydrogen pressure of 4000 lbs./sq. in.  The product shows about 20 per cent saturation of the double bonds and is about 85 per cent free alcohol; (2) and (3) the proportions of the components in the mixture are 90 : 10 : 5 and temperature 340 DEG  C. Specifications 562,609, 562,610 and 570,957 are referred to.
Patent GB-239803-A (GB)
Title: An improved folding ladder applicable also for other purposes
IPC: E04G3/22
Filed: 1925-04-24
Abstract: 239,803. Fisher, T. W. April 24, 1925. Ladders; scaffolding.- Folding metal ladders are formed of alternate rigid frames a, each comprising two vertical outside members 2 and a central inner member 3, all looped at their ends and shrunk on to horizontal cross-bars 1 constituting rungs, the frames being connected by stays 4 looped at each end to pivot on the cross-bars 1. The links at the top and bottom of the ladder converge and are provided at their meeting ends with hooks 5. An attachment for use with the ladder to support scaffolding planks and the like, comprises two rows of links 8 with interengaged looped ends and spiral hook-shaped extremities to engage ladder rungs or ladder sides, as shown in Fig. 7.
Patent GB-887440-A (GB)
Title: An improved process for the production of cross-linked polyvinyl chloride
IPC: D01F6/08
Filed: 1958-04-02
Abstract: A process for producing cross-linked polyvinyl chloride comprises swelling the polyvinyl chloride with a non-polymerizable organic solvent selected from tetrahydrofuran, dioxane and tetrahydronaphthalene and subjecting it to ionising radiations in the presence of air.  Suitable radiations are accelerated electrons and neutrons.  The resin may be shaped prior to the irradiation.  In an Example 1g. of polyvinyl chloride is swelled with 5 c.c. of tetrahydrofuran to give a gum-like solution which is placed at 30 mm. from a Co60 source of 50 curies and is subjected in air to irradiations of 30 and 160 Mr at a rate of 67,500 r.h.  Reference has been directed by the Comptroller to Specification 732,047.
Patent GB-128890-A (GB)
Title: Improvements in or relating to Toy Aeroplanes or the like.
Inventor: PINTON CHARLES ALFRED
IPC: A63H21/02
Filed: 1919-04-30
Abstract: 128,890. Pinton, C. A. April 30, 1919. Mechanical and like toys.-A toy aeroplane is provided with wheels h in order that it may run along an inclined wire w. The weight of the undercarriage a is made sufficient to keep the toy upright.
Patent GB-809682-A (GB)
Title: Improvements relating to spring devices
Inventor: BINGHAM ARTHUR EDWARD
IPC: F16F9/34
Filed: 1956-04-09
Abstract: 809,682. Liquid springs. DOWTY EQUIPMENT Ltd. April 8, 1957 [April 9, 1956], No. 10768/56. Class 108(3) A spring device comprises a liquid spring having a plunger 14 slidable through one end of a liquid-filled cylinder 1, the plunger head 17 slidably fitting the bore of the cylinder 1 in sealing relationship, and a porous plug 25 of high resistance to liquid flow interposed in a communication between the cylinder spaces 19, 20, defined by the head 17. The arrangement is such that when the liquid spring is subject to an applied load, the flow through the porous plug is negligible over a prescribed short period of time (e.g. a few seconds). The plug 25 may be of sintered metal or ceramic material, or a porous material of synthetic or fibrous organic material, such as chrometanned leather. The plug 25 may be encircled by a sealing ring 26, and may be faced on both sides with discs 26a of fine wire gauze. Filling is carried out at low temperature through a plug 12 so that at normal temperature the liquid will be under a pre-load.
Patent GB-759471-A (GB)
Title: Improvements in or relating to steam superheaters for marine and like water tube boilers
IPC: F22G7/14
Filed: 1950-05-03
Abstract: 759,471. Steam superheaters. SUPERHEATER CO., Ltd., and MELHUISH, H. May 3, 1951 [May 3, 1950], No. 10906/50. Class 123(3). In a superheater, for a water-tube steam boiler, comprising tubular elements 5 extending between steam inlet and outlet headers 6, 7 and wherein each element is formed of at least two U-shaped loops coupled by an inclined connecting bar 9 which is common to all the elements and has passages 11, 11 for effecting communication between the appropriate ends of the loops of said element, the bar 9 is provided with one or more longitudinal drainage ducts 15 which communicate with the passages 11 and also with one another through ducts 18 and is fitted at its lower end with a drain valve 17. The bar 9 may be disposed within the boiler casing 19 or between the plates of the latter, and the tube loops are secured to it by clamps 10, each clamp engaging collars 12 on the two loops and being tightened by a nut 13 on a stud 14 screwed thereinto, or by welding them to stub tubes which are themselves welded to the bar 9. All the loops of an element may be made of mild steel, but preferably the outlet loops is of heat-resisting alloy steel.
Patent GB-802090-A (GB)
Title: Process for separating constituents of mineral oils
IPC: C10G25/00
Filed: 1956-04-10
Abstract: A cyclic process for separating constituents of mineral oils boiling above 300 DEG  C. comprises dissolving the oils in a diluent (a) and passing the solution through an adsorption column, passing more diluent through the column to displace part of the solution remaining on the adsorbent, removing aromatic compounds (B1) and resinous compounds (B2) having higher adsorbability than B1, from the column by means of an eluting agent (b), and displacing the eluting agent by the diluent.  The following sets of conditions must be satisfied, where Q is the specific heat of melting:- <FORM:0802090/III/1> Diluents mentioned are aromatic-free gasoline and pentane, and eluents referred to are dichloroethane and benzene.  The adsorbent used may be silica gel.  The eluent may be used hot or cold; different fractions may be separated by using hot and then cold eluent or vice versa, and may then be displaced by cold diluent, or the hot eluent may be displaced first by hot and then by cold diluent.  Different fractions may then be blended to obtain oils for the purposes required.  After a number of cycles the temperature of the hot eluent may be increased.  Strongly adsorbable substances such as water and solid contaminants may be previously removed from the oil in another adsorbent column.
Patent GB-161954-A (GB)
Title: Improvements in means for reducing the ground current in electric high tension transmission systems
IPC: H02H9/08
Filed: 1921-04-16
Abstract: 161,954. Allmõnna Svenska Elektriska Aktiebolaget. April 16, 1920, [Convention date]. Protects arrangements.-In a high-tension alternating-current distribution system in which each line is earthed through an impedance, the value of the impedance is reduced upon a fault occurring on one of the lines. In one arrangement the core is dimensioned so that magnetic saturation occurs upon the occurrence of a fault. In the modification shown in Fig. 3, the windings of the coils .are cross connected, while in a further modification, shown in Fig. 4, the core is provided with an additional leg upon which a short-circuited winding g is placed. In the modification shown in Fig. 5, portions of the coils are short-circuited by switches h upon the occurrence of a fault; and in a further modification each core is provided with an additional winding which is short-circuited upon the occurrence of a fault. The additional winding may be the secondary winding of a transformer, and the various arrangements may be combined.
Patent GB-898283-A (GB)
Title: Improvements in or relating to hydraulic pressure-multipliers
Inventor: ALPING GUSTAV HENRY
IPC: F15B7/04
Filed: 1961-03-27
Abstract: 898,283. Work-holders. BAHCO A.B. March 27, 1961, No. 11171/61. Class 83 (3). [Also in Group XXIX] An hydraulic pressure-multiplier for the work-fastening jaws in a machine tool comprises a low-pressure piston 2 movable in a cylinder 1 and provided with a central bore 10 serving as a cylinder for a high-pressure piston 11, the lowpressure piston being actuated by a sleeve-like member 7 having outer threads 6 co-operating with inner threads 5 in the low-pressure cylinder and in a handle 9 connected to the high-pressure piston, and a locking device 13 which normally connects the handle to the sleeve-like member but releases the handle so that it can be screwed on to the sleeve-like member to actuate the high-pressure piston when the pressure produced by the low-pressure piston reaches a predetermined value. The locking device consists of a ball 13 urged by an adjustable spring device 12 into a recess in the threaded part of the sleeve so that on rotation of the handle 9, the sleeve abuts and moves the low-pressure piston 2 to pressurize fluid in a chamber 3 connected by a pipe 4 to the work-fastening jaws. At a predetermined pressure, the resistance to the movement of the piston 2 and sleeve 7 causes the locking device to be released so that rotation of the handle 9 moves the high-pressure piston 11 to increase the pressure acting on the jaws. The return movement of the pistons is limited by a pin 18 and flange 21. In the event of the jaws or piston 2 sticking on the return movement, the sleeve 7 can move relative to the piston 2 by means of a screw 24 and slot 23 connection to prevent a partial vacuum occurring and air being drawn into the system.
Patent GB-613019-A (GB)
Title: Improvements in pulse echo position indicator systems, and other systems which involve the measurement of the time-interval between periodically occurring information-conveying pulses and periodically occurring datum pulses
IPC: G01S7/00
Filed: 1945-05-04
Abstract: 613,019. Television. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. May 4, 1945, No. 11449. Convention date, June 26, 1942. Addition to 613,017. [Class 40 (iii)] [Also in Group XL (c)] In a pulse radar system of the kind described in the parent Specification, wherein the image representative of the received signals is produced at the receiver and is scanned at a lower rate than the pulse recurrence frequency to produce signals, occupying a reduced frequency band, which are transmitted over lines to a central station, the scanning means also scans a source of light to produce synchronizing pulses which are also transmitted to the central station to synchronize the cathode - ray tube display with the signals applied thereto. Direction indicating pulses are also produced at a predetermined position in the aerial rotation. The received signals are displayed as a rectilinear trace upon a cathode-ray tube IT<11> which is scanned by a rotating disc RD bearing a plurality of scanning apertures, whereby a signal is generated by photo-cell PC<1> corresponding to the received echo signals. Light sources LS, LN cause the production in the photo-electric cells PCS, PCN of synchronizing and " northing pulses respectively. The " northing pulses are applied to the normally cut-off amplifier BA which is rendered conducting once per revolution when the aerial is pointing in a predetermined direction, e.g. north. The signal pulses, synchronizing pulses and selected " northing" pulses are combined and transmitted over lines to the central station. The synchronizing pulses are separated out and used to synchronize the radial sweep of the plan-position indicator tube IT<111>. The signal and " northing " pulses are applied to the tube. to intensity-modulate the radial trace thereof, the " northing " pulses producing a bright radial line on the screen corresponding to the predetermined " northing " direction.
Patent GB-244638-A (GB)
Title: Improvements in or relating to hair pins
IPC: A45D8/04
Filed: 1925-05-04
Abstract: 244,638. Chrimes, M. May 4, 1925. Hair-pins.-A hair-pin is formed as an open spiral a the turns being of equal diameter and the forward end b projecting laterally beyond the diameter of the spiral, while the other end c may be hooked to facilitate gripping, or may be formed with an ornamental head.
Patent GB-115181-A (GB)
IPC: B24D15/00
Abstract: 115,181. Brower, C. Oct. 8, 1917. Polishing-compositions.-A solid block of polishing-material is mounted on the exterior of a bottle or tin container, which is adapted to hold a lubricating fluid, such as paraffin, spirit, &c. The cylindrical block of polish a, Fig. 2, and its containing box b are each provided with a central perforation adapted to receive the neck c of a tin container J; a lid c may be provided. In the arrangement shown in Fig. 5, slabs j of polishing- n,aterial are inserted in recessed panels h formed in the sides of a bottle g, the slabs being forced into undercut grooves i when in a plastic state. Specification 109,420 is referred to.
Patent GB-650224-A (GB)
Title: Improvements in compasses
IPC: G01C17/38
Filed: 1948-04-27
Abstract: 650,224. Magnetic compasses. LARSEN, K. April 27, 1948, No. 11547. [Class 97 (ii)] A compass is corrected for local magnetic disturbances by a single magnet 9 disposed vertically in relation to the rotational plane of the magnet needle and arranged so that its inclination in relation to this plane may be adjusted. As shown, the magnet 9 is secured to a shaft located in bearings diametrically on the ring 2 carrying the lubber lines, one end of the shaft carrying a gear 10 meshing with a sector 11 having a dog 13 engaging a cam track 15 mounted on the bowl by means of adjusting screws 17. The screws 17 are located, e.g., at 45 degrees around the bowl and their lengths adjusted to give the cam track 15 the required form so as to incline the magnet 9 through gears 10, 11 and the shaft at the appropriate angle to correct the deviation at the particular heading represented by the screw. A spring attached at one end to the shaft and at the other to the compass urges the dog 13 into engagement with the cam 15.
Patent GB-167234-A (GB)
Title: Improvements in automatic fire-arms
IPC: F41A3/46
Filed: 1920-04-28
Abstract: 167,234. Pollard, H. B. C. April 28, 1920. Breech actions, sliding breech-block.-Relates to automatic guns of the kind having a recoiling slide or sleeve adapted to unlock and retract the breech-block. According to the invention, the breech-block is locked by directly engaging the frame, and the breech-block and slide are provided with coacting inclined lugs or surfaces whereby, after an initial movement of the slide, the breech-block is unlocked from the frame and connected to the slide, these movements being reversed during the forward movement of the slide. In the automatic pistol shown, the breech-block d is locked to the barrel housing k by a downwardly-projecting lug d<1>, and is lifted to unlock it by inclined lugs g on the slide b engaging inclined grooves on the breech-block. The width of the grooves is greater than that of the lugs to provide for an initial lost movement of the slide. The breech-block, when lifted, is coupled to the slide by entering a recess j<1> at the top of the slide. The lug d' may be a loose fit in the locking-recess e<1> so that the breech-block is driven back a short.distance to impart energy to the slide, but even when the lug is a close fit the slide is driven back by the shock of discharge. The barrel is screwed into a housing k, which fits in an open-fronted slot in the frame and is secured by a removable cross-key n.
Patent GB-673668-A (GB)
Title: Improvements in or relating to variable pitch screw propellers
IPC: B64C11/34
Filed: 1949-05-03
Abstract: 673,668. Variable-pitch propellers. ELMER, A. E. Aug. 3, 1950 [May 3, 1949], No. 11737/49. Class 114. The blade 19. is turned towards a coarse pitch position by the centrifugal force acting on a weight 26 attached to the blade root and acting against a coil spring 24. The weight is mounted so as to pivot on a rod 25 and has a shouldered portion 27 which turns to engage projections on the propeller hub. These projections correspond to coarse, fine and fully feathered pitches.
Patent GB-667917-A (GB)
Title: Improvements in or connected with tooth brushes
IPC: A46B9/04
Filed: 1950-05-11
Abstract: 667,917. Tooth brushes. COSBY, E. L. H. May 11, 1950, No. 11752/50. Class 19. In a tooth brush having the usual bristles at one end and an india-rubber sleeve having a number of projecting stubs at the other end, the end of the handle carrying the sleeve is formed with a reduced portion having a projecting pin on one face and the sleeve is formed with a hole for engaging over the pin when the sleeve is in position in the reduced portion of the handle. In the figures a tooth-brush has a handle 1 having the usual bristles 2 at one end; at the other end the handle is formed with a portion 1b of reduced width and thickness, in the upper face of which is a projecting pin 3. A removable india-rubber sleeve 4, having a number of stubs 4a on one face to form a massage surface, is located in the reduced portion 1b and is formed with a hole to engage over the pin 3. Specification 430,712 is referred to.