baber/WOPTO huggingface dataset:
Patent GB-1428165-A (GB)
Title: Compositions for use in dentistry
IPC: C08F291/00
Filed: 1973-03-21
Abstract: The intention is to create a composition which can be converted by polymerisation into a material which is resistant to abrasion, which composition possesses a matrix, which can be hardened by polymerisation, and, in this matrix, dispersed, hard, inorganic filler particles, and is suitable, in particular, for parts of artificial teeth. In a composition of this type, the inorganic filler particles consist of glass and/or ceramic compositions having at least 50% by weight SiO4/2 units and/or AlO3/2 units. These particles have a granule size distribution curve whose smallest granule diameter is in the range of 0.8 to 9.4 microns and whose greatest granule diameter is in the range of 3 to 20 microns. Their matrix is expediently formed from at least one polymer or copolymer and at least one monomer, e.g. from a) a powder which contains polymers and/or copolymers of acrylic acid ester or methacrylic acid ester, vinyl chloride, vinyl acetate, styrene or butadiene, and b) a liquid consisting of acrylate ester and methacrylate ester from the group of monomers consisting of methyl methacrylate, butyl acrylate, polyethylene glycol dimethacrylate and bisphenol-A-dimethacrylate. The filler can have particles possessing a negative coefficient of expansion. The average granule size of the filler particles is expediently 7 +/- 5 microns. <IMAGE>
Patent GB-437891-A (GB)
Title: Improvements relating to free-wheel mechanism
IPC: F16D41/10
Filed: 1934-05-07
Abstract: 437,891. Free-wheel clutches ; driving dynamos. FLETTNER, A., 53, Numbergerstrasse, Berlin. May 7, 1934, No. 13726. Convention date, Sept. 29, 1933. [Class 80 (ii)] [See also Group XXXV] A clutch, such as between a pulley 16, Fig. 1, driven from the axle of a railway vehicle and the armature shaft 12 of a lighting dynamo, which drives and allows overrunning in both directions of rotation, comprises wedging balls or rollers 14 engaging between the interior cylindrical surface of a member 13 secured to the shaft 12 and the polygonal exterior surface of the pulley hub 17, the rollers being mounted in a cage 18 which is braked by an adjustably-loaded plate 24 slidably keyed on a fixed spindle 19. Overrunning of the shaft 12 may be slightly restrained by means of a spring-loaded plate 27 mounted on the shaft 12 and bearing against the pulley 16. Alternatively, the rollers may engage between a cylindrical exterior surface of the driven part and double-cam recesses in an interior surface of the driving part. In a modification, two sets of single-acting rollers 30 and 34, Fig. 4, mounted in a common cage 38 are employed.
Patent GB-180666-A (GB)
Title: Improvements in accordion-shaped bellows, more particularly for the intercommunication passages of railway cars
IPC: B61D17/22
Filed: 1922-05-16
Abstract: 180,666. Lemerle, J. L. May 25, 1921, [convention date]. Vestibules, collapsable. connecting cars.-The strengthening-bands b of a bellows, such as the inter-communication bellows between adjacent railway-cars, are secured in position by means of rivets, bolts, or the like c, which, instead of projecting from the portion of leather or canvas a between the inner and outer folds, are disposed along the outer folding lines of the bellows, as shown in Fig. 2, which shows three different constructions. In these modifications, that on the left shows the rivets c forked and embracing the band b, that in the middle shows the rivets welded or soldered to the band b, while that on the right shows the rivets completely embracing the band and having their free ends turned down to form a head. In each case the shanks of the rivets are passed through holes punched in the outer folds of the leather or canvas and have washers or a perforated metallic band engaged thereon before the rivet heads are formed.
Patent GB-554338-A (GB)
Title: Improvements in or relating to the vulcanisation of rubber
IPC: C07D295/21
Filed: 1941-10-27
Abstract: 554,338. Dithiocarbamate compounds. MONSANTO CHEMICAL CO. Oct. 27, 1941, No. 13816. Convention date, Nov. 6, 1940. [Class 2 (iii)] [Also in Group V] Vulcanization accelerators for rubber consist of the product of oxidative condensation of a. dithiocarbamate derived from a secondary amine with a primary amine. The compounds have the general formula:- where R, R' are alkyl, aryl or alicyclic groups or represent groups which form part of a closed ring structure, X is hydrogen and Y is univalent organic group. The secondary amines used for forming the thiocarbamate may be morpholine, piperidine dimethylamine, hexamethyleneimine, dibenzylamine, methylcyclohexylamine, dibutyl amine, diamylamine, dipropylamine, diethylamine and diphenylamine. The primary amines for reaction with the thiocarbamate may be n-butyl, n-amyl-, isobutyl, allyl- or benzylamine, cyclohexylamine, ethylenediamine, pethylcyclohexylamine, hexahydrobenzylamine or diphenylguanidine. The Specification as open to inspection under Sect. 91 describes also the use as vulcanization accelerators of the products of the oxidative condensation of a dithiocarbamate derived from a secondary amine with a secondary amine or with a cyclic amine containing a hydrogen atom on the cyclic nitrogen atom such as di-methyl, di-ethyl, di-propyl, di-n-butyl, di-isobutyl, di-isoamyl, or di-benzyl amine, piperidine or morpholine. The compounds may also be formed by reacting a stable N-halogen derivative of a secondary amine with a salt of dithiocarbamic acid. This subject-matter does not appear in the Specification as accepted.
Patent GB-839366-A (GB)
Title: Improvements in and relating to the moulding of shoe soles
IPC: B29D35/12
Filed: 1956-05-04
Abstract: 839,366. Moulding shoe soles on to uppers. LEMM, H. May 4, 1956 [July 7, 1955], No. 13896/56. Class 87(2). In the moulding of a shoe sole on to an upper mounted on a last, an outer sole 16 of partly vulcanized rubber is placed on a sole plate 15, and intermediate sole material, e.g. unvulcanized sponge rubber, is filled into a mould space having rounded edges 12, which cause the edges of the sole to be bonded to the intermediate material and removes the necessity for trimming after moulding. The mould forms the subject-matter of Specification 839,367.
Patent GB-752693-A (GB)
Title: Cleaning of flexible gas filter tubes
IPC: B01D46/04
Filed: 1954-05-12
Abstract: 752,693. Filtering gases. FISCHER, G. May 12, 1954 [May 16, 1953], No. 13912/54. Class 8(2). A gas filter of the flexible multi-tube type comprises a chamber sub-divided by a stationary plate 7, Fig. 1, housing sockets 6 to which the open lower ends of the tubes 2, only one of which is shown, are attached, a frame 13 through which the tubes pass and which is capable of vibrating in a plane normal to the tube axes, and a second similarly vibratable frame 5 to which the upper closed ends of the tubes 2 are secured ; the frames 13, 5 being connected by rods 14, 18 universally jointed, e.g. by a ball joint 17 intermediate their ends. The upper closed end of each tube 2 carries a tensioning rod engaging a notched bar 4 carried by the frame 5 and the latter is supported from a jacket 1 of circular or rectangular crosssection by springs 11 and is angularly vibrated by rotation of a central unbalanced member 10, Fig. 2, whereby cleaning of the tubes 2 is effected. With the joint 17 in the midway position shown the vibrations transmitted to the frame 13 have an amplitude equal to that of frame 5 but opposite in phase. The ratio of the amplitudes may be varied by shifting the ball joint 17 towards one or other of the frames 5, 13. In a modification the universal joints are seated in rectangular cross-sectioned elements rivetted to the corners of a rectangular filter housing, and in a further modification the joints are supported within the filter housing by an independent structure.
Patent GB-1445711-A (GB)
Title: Electric motor thermal overload protection  circuit
IPC: H02H7/085
Filed: 1973-03-22
Abstract: 1445711 Protective systems KENWOOD MFG CO Ltd 22 March 1974 [22 March 1973] 14001/73 Heading H2K An electrical thermal overload protection circuit for an electric motor comprises a voltage divider formed by series connected resistors R1, R2 and positive temperature coefficient (PTC) resistor 30, the junction between resistors R1 and R2 being connected to a thyristor 25 to control the current to the motor armature 24. In operation under normal conditions the resistance of the PTC resistor is very small compared with R 1 and it has negligible effect on the circuit, the thyristor 25 being biased by the voltage divider to conduct and the motor being on; however under overload conditions the resistance of the PTC resistor rises rapidly as it is heated by a heater resistor 31 in the supply lead 21 to the motor and protection circuit, and eventually disturbs the bias on the thyristor so as to cause it to cease conducting and switch off the supply to the motor, after which the PTC resistor continues heating itself and keeps the motor cut off until the supply has been manually switched off for long enough for it to cool down. Triacs or SCRs may be used in place of the thyristor 25, Fig. 2, not shown, with an associated trigger circuit. In a further embodiment for use with a motor having a tachogenerator speed control circuit, Fig. 3, not shown, the PTC resistor and a further resistor form a potential divider their junction being connected to the inhibit pin of an integrated circuit controller so that when the PTC resistor is heated during overload the voltage applied to this inhibit pin causes the control circuit action of the controller to be overridden and firing pulses to a triac in the motor circuit to be inhibited so that the supply to the motor is interrupted.
Patent GB-1380975-A (GB)
Title: Transmission systems
IPC: F16H47/02
Filed: 1972-03-24
Abstract: 1380975 Motor vehicle transmission gearing H STEINER Ltd 2 March 1973 [24 March 1972] 14022/72 Heading B7H A transfer gear-box 7 in a vehicle with a choice of mechanical drive or hydraulic creeper drive comprises main input and output shafts 21, 23 connected by shafts 6, 8 to an engine 5 and a rear axle 9, respectively, auxiliary input and output shafts 28, 30 connected by shafts 11, 15 to an hydraulic pump 12 and motor 14 respectively, and control means movable between respective positions in which either the main input shaft 21 is coupled to the main output shaft 23 and the auxiliary shafts 28, 30 are both disconnected, or the main input and output shafts 21, 23 are disconnected from one another and coupled to the auxiliary shafts 28, 30, respectively. Gear-wheels 37, 42 on the auxiliary shafts 28, 30 mesh with gear-wheels 35, 40 which are mounted on the main shafts 21, 23, respectively, and are coupled thereto when clutch sleeves 44, 45 are engaged by forks 46, 47 on a common control rod 48 occupy the positions shown. In a second position of the clutch sleeves 44, 45 the gear-wheels 35, 40 are uncoupled from the shafts 21, 23 which are coupled by the clutch sleeve 44. In a fourwheel-drive vehicle a front axle drive-shaft may be geared to the main output shaft, and means may be provided for enabling the drive between the auxiliary input shaft and the main output shaft to be independently disengaged so that the pump can be utilized for supplying auxiliary equipment when the vehicle is stationary.
Patent GB-612842-A (GB)
Title: Improvements in or relating to radio-receiving devices comprising a frame aerial
IPC: H03H2/00
Filed: 1946-05-09
Abstract: 612,842. Aerial coupling arrangements. PHILIPS LAMPS, Ltd. May 9, 1946, No. 14032. Convention date, Feb. 12, 1942. [Class 40 (v)] A radio receiving device comprises a frame aerial of a single or a few turns connected to an input circuit by a transmission line constituted by two parallel strip-shaped conductors 10, 11 arranged side by side (shown in crosssection in Fig. 2), the broad sides of these being turned towards one another. This arrangement reduces ohmic losses in the transmission line, whilst the conductors are maintained in sym- . metry with respect to earth. The radio receiving device is of the type wherein the transformed self-inductance of the system formed by the frame aerial and transmission line constitutes the greater part of the selfinductance of the input circuit, and by suitable spacing d of the transmission line the lowest natural frequency of the system may be made to exceed the highest frequency to be received.
Patent GB-1095203-A (GB)
Title: Earth moving apparatus
Inventor: JOHNSON CHARLES MATTHEW
IPC: E02F3/64
Filed: 1965-07-22
Abstract: 1,095,203. Earth-moving scraper bowls. JOHNSON MANUFACTURING CO. July 22, 1965, No. 14158/67. Divided out of 1,095,202. Heading B1F. In a scraper bowl having a bottom wall section that is movable forwardly and rearwardly relatively to the rest of the bowl to close and open the bowl there is provided, when the section is in the foremost position, means to positively restrain downward movement of the front of the section. The means may comprise pins on the section extending laterally thereof for engagement in parallel or convergent sided slots appropriately formed on the rest of the bowl.
Patent GB-438053-A (GB)
Title: Improvements in or relating to fluid flow indicators
IPC: G01P5/07
Filed: 1934-05-11
Abstract: 438,053. Fluid-flow indicators. KENT, Ltd., G., 199, High Holborn, London.-(Ionides, M. G. ; Irrigation Directorate, Baghdad, Iraq) May 11, 1934, No. 14308. [Class 97 (ii)] [See also Groups XXVI and XXXVII] A fluid-flow indicator which is suspended in a stream flowing past it, comprises a body 1 and a yoke piece 2, 3, and a rotor with vanes 16, which is supported on two bearings 8, 10, as shown. A cylinder 19 of insulating material, and a metal member 18, together form a chamber 23, in the bottom of which is placed a small quantity of mercury 24. A metal washer 20, screwed to the cylinder 19, has one screw 21 extending through the cylinder and making contact with the mercury once per revolution of the rotor. A terminal 25 is connected to one line of an electrical circuit including a battery and a telephone, or other electrically responsive device. This terminal connects with the washer 20 by way of the yoke piece. A second terminal 26 completes the circuit through the parts 6, 7, 8, 18, and the mercury 24. Parts 5, 27, 13, are of insulating material. The bearing 10 rests in a plug 11 which may be pressed axially against a spring 30 to effect the removal of the rotor. A tail pin 32 is secured to the body 1 by means of a plug 33 held by a screw 34. The pin member may be made in two parts. The indicator is suspended on a strap 36 which passes through two slots 35 and is held by a screw 37. A lead weight 40 is attached.
Patent GB-907904-A (GB)
Title: Apparatus for stretching yarn
Inventor: HARGREAVES ROBERT
IPC: D02J1/22
Filed: 1961-04-20
Abstract: A device for drawing yarn &c. between a driven feed roll 2, Fig. 1, and drawing-means, not shown, driven faster than the feed-roll, comprises a freely-rotatable pressure-roll 16 with its axis parallel to that of feed-roll and mounted on a pivoted arm 4 for movement into and out of contact with the feeding roll, and which is yieldingly urged against the feed roll, and a guide 19 having a circular guide <PICT:0907904/IV(a)/1> <PICT:0907904/IV(a)/2> surface, mounted with the centre of the surface on the pivotal axis of the arm, which enables the yarn to be passed at least twice around the pressure-roll and through the nip between the feed and pressure rolls and then to the drawing-means, whereby pressure is applied to two stretches of yarn to prevent it slipping on the feed roll.  The arm 4, Fig. 2, has a bearing-boss 5 on a stud 6; this has a reduced portion 7 snugly fitting into a beam 3 where it is held by a nut 8.  The roll 16 is pressed into engagement with the feed roll by the free end 12 of a spring 11 bearing on a stud 13 carried by arm 4; the spring is stressed by rotating a collar 9 on stud 6, the collar being bored to secure the other end 15 of the spring and being locked in desired position by a grub-screw 10.  To eliminate wear on the rolls 2, 16 the guide 19 is traversed; to this end it is secured to a rod 17 terminating in a block 23 with a groove 28 engaged by a cam 26 rotated by a shaft 27, a spring 25 being provided.  For threading-up, roller 16 is lifted by a handle on arm 4 against the force of spring 11 so that stud 13 is lifted to a position where it is held by a spring catch 30 on beam 3.  The thread passes from a supply roll, not shown, around a groove in guide 19 to take a half-turn around roller 16 and thence passes to the nip between rollers 2, 16; it then travels back to a second groove in the guide, takes a second half-turn around roller 16, then passes to the nip and is finally wound on a drawing-roller, not shown, which is driven faster than roll 2.
Patent GB-168153-A (GB)
Title: Improvements in or relating to motor car and like radiators
IPC: F28D1/04
Filed: 1920-05-26
Abstract: 168,153. Morris, G., and Hinton, E. W. May 26, 1920. Radiators, aircraft, motor-car, and like, of the kind comprising tubes connected with subsidiary tanks at the top and bottom, such tanks being secured in a readily detachable manner to the main tank. The main tank comprises upper and lower headers 1, 1<a>, connected by side vertical tanks 2, 2a forming passages for the free circulation of the cooling-water. The rear faces of the headers are recessed as at 7, 8, Fig. 2, to accommodate pipes 9, 10 and screw unions 13 by which the nest of tubes 5 is connected to the main tank. The nest of tubes comprises a hollow box-like member formed by upper, lower, and side members 14, 15, 4a, 5a respectively, with a central space occupied by the tubes 6. Water may therefore pass between the headers 1, 1<a> either by way of the side passages 2, 2a or by way of the nest of tubes; moreover water may pass between the members 14, 15 either by way of the tubes 6 or by the side passages 4a, 5a. In alternative constructions the nest of tubes may be replaced by a tank containing the water with tubes passing horizontally therethrough from front to rear for the passage of air for cooling the water. In a further modification the lower header 1<a> does not receive the cooling-water but serves merely as a support for the nest of tubes, the water passing directly from the lower watercontaining member 15 into the circulatory system.
Patent GB-799101-A (GB)
Title: Improvements in and relating to gas purifiers
IPC: B01D45/08
Filed: 1956-05-09
Abstract: 799,101. Washing gases. COMPAGNIE FRANCAISE BLAW-KNOX. May 9, 1956 [May 24, 1955], No. 14434/56. Class 55 (2). In an apparatus wherein dust is removed from a gas by bringing the gas into intimate contact with a liquid, such as oil, the oilladen gas is delivered to a chamber in which the oil is separated centrifugally from the gas. As shown, dust-laden gas is admitted at 8 to a chamber 4, defined by a partition 2, the gas forcing its way through oil, the level of which is shown at 7, to the lower ends of tubes 9 leading to an expansion chamber 5 lying between an upper partition 3 and the partition 2. Oil, separated by the expansion, from the gas, returns to the oil reservoir through drain passages 10, whilst the gas passes to the separating chamber 6 through openings 12 in the partition 3, the gas being directed by vertical and horizontal plates 13, 14 to enter the chamber 6 tangentially and thus to deposit oil on the sides of the chamber. Oil is returned to the reservoir through pipes 18. An inclined baffle 16 projects from each plate 13 and serves to direct oil-droplets towards the partition 3, the oil being prevented from running back into the openings 12 by ledges 17. The gas passes to a final separator 19, oil from which is teturned to the reservoir by pipes 21 concentric with the pipes 18.
Patent GB-1241861-A (GB)
Title: Socket with means for locking the same in an aperture of a mounting panel
IPC: H01R33/09
Filed: 1968-03-26
Abstract: 1,241,861. Lampholders. FORD MOTOR CO. Ltd. 26 March, 1968 [30 March, 1967], No. 14483/68. Heading H2E. A lampholder 10 is mounted in a panel 26 by passing cams 21, 22 through notches 23 in an aperture 24 and rotating the holder so that it is secured between the cams 21, 22 and shoulders 18, 19; a resilient locking tab 27 being depressed when the holder is inserted, and then springing out into one of the notches, after rotation of the holder, to secure it against further rotation. A baseless bulb (not shown) locates the ends of terminals 16, 17 in the rectangular body 11 of the holder, while the other ends of the terminals 16b, 17b contact printed circuitry on the panel.
Patent GB-677075-A (GB)
Title: Improvements in and relating to a textile twisting spindle
IPC: B62B11/00
Filed: 1949-05-31
Abstract: 677,075. Double-twist spindle. R.O.B.E. SOC. ANON. May 31, 1949 [June 7, 1948], No. 14549/49. Class 120(ii) The double-twist spindle of this Specification is substantially similar to that described in Specification 662,543. The main differences are (a) that the axes of the cylindrical shoulders 112 and 117 are in alignment as opposed to being parallel, and (b) ball and socket joints 122- 123 and 122a-123a, are provided between pins 121 and 121a and the casing 129 instead of having pins which slide in holes in the casing 129.
Patent GB-1391373-A (GB)
Title: Rock sampling tool
IPC: E21F17/00
Filed: 1973-03-27
Abstract: 1391373 Collecting dust generated by rockcutting wheels COMINCO Ltd 27 March 1973 [30 March 1972] 14571/73 Heading F4X A rock cutting wheel 13 (e.g. a saw) used for obtaining rock samples, has a shroud 14 connected by a tube 21 to a cyclone 22. The wheel is driven by a compressed-air actuated device 10 such as a 90 degree angle drill, which exhausts through a tube 16 to an air ejector 18 and so provides low pressure suction in a tube 24 extending from the cyclone to the ejector. The dust sample is collected in a bag 23 detachably attached, e.g. by a rubber band, to the cyclone so that the bag can be renewed for each sample. A short period of operation without cutting or with a reverse flow of air discharged through the open cyclone serves to purge the system between the taking of samples. The device is intended for use as a portable unit (Fig. 1) and is controlled by a hand throttle 12, the compressed air being supplied to the line 11 from a portable air bottle. The device is said to be effective on both dry and wet rock faces.
Patent GB-1045924-A (GB)
Title: Travelling gantry structures
Inventor: EDEN KENNETH ALBERT
IPC: B01D21/04
Filed: 1964-04-09
Abstract: 1,045,924. Travelling gantries. WILLIAM E. FARRER Ltd. March 29, 1965 [April 9, 1964], No. 14657/64. Heading B8E. A travelling gantry structure 10 spans a pair of sewage settlement tanks 11, 12 and includes a carriage 13 supported on wheels 15 running on a track 14 formed by rails 16 on a wall driving the tanks 11, 12. Projecting on opposite sides of the carriage 13 is a pair of gantry portions 17, 18, each provided with a supporting wheel 19 engaging the respective outer wall 20. An endless driving element in the form of a roller chain 21, Fig. 2 (not shown), is housed in the carriage 13 and is carried by a pair of sprockets 22. A further sprocket (not shown), connected to an electric motor 24, engages the lower run of the chain 21 midway along its length. Pivot-pins 23 interconnecting adjacent links of the chain 21 are extended in both directions and co-act with a series of abutments 25 spaced along the track 14. The upper edge of each abutment 25 is formed with double teeth so arranged that each abutment 25 engages a pair of adjacent pivot-pins 23. The endless driving element may be in the form of a pair of spaced chains interconnected by tierods (not shown). The intermediate driving sprocket may be omitted and one of the sprockets 22 driven. A single gantry structure may span three or more tanks with interconnected drive means in carriages on each dividing wall to prevent skewing.