baber/WOPTO huggingface dataset:
Patent GB-225314-A (GB)
Title: An improved percussion and rotary drilling tool
IPC: E21B10/36
Filed: 1923-09-13
Abstract: 225,314. EscarÚ, C. M. Sept. 13, 1923. Drills. - A percussive and rotary drill for operating on brick, stone, concrete, tiles and similar hard materials consists of a drawn steel bar, the end being divided by saw-cuts to provide a series of chisels a which are arranged so that there is no dead centre. The sides are hollowed at b to provide clearance for cuttings and slots c are cut between the chisels for the same purpose.
Patent GB-199981-A (GB)
Title: Improvements in means for operating the troughs of jig conveyors
IPC: B65G27/00
Filed: 1922-08-23
Abstract: 199,981. Ridgill, E. Aug. 23, 1922. Jigging conveyers.-The cross-head f of a single acting compressed air motor g is connected to a chain e which is passed round a sprocket d mounted on the trough a of a jigging conveyer and attached to a pit prop h. The pin i on which the sprocket d rotates is mounted in a frame j, k and is held against rotation by a plate o. Specification 199,982 is referred to.
Patent GB-223375-A (GB)
Title: Improved means of regulating the gas flow to gas calorimeters
IPC: G01N25/22
Filed: 1923-09-14
Abstract: 223,375. Stewart, J. G. Sept. 14, 1923. Burners modified for special purposes; gas supply.-For regulating the gas supply to a gas calorimeter the gas is supplied through a pipe 1 to a chamber 4 which communicates freely with the atmosphere through an opening 5 and also communicates with the burner 8 through a pipe 6 by way of an orifice 7 placed anywhere between the chamber and the burner. The air for combustion enters through a restricted opening 9, the hot gases passing along a chimney 10 and thus producing a partial vacuum at the burner and causing gas to flow through the orifice 7. The chamber 4 may be set at such a level above the burner that the total pressure reduction at the orifice 7 is proportional to the density of the gas, the volumetric rate of flow being thereby rendered independent of the density. The air flow to the burner may be automatically varied in accordance with the calorific value of the gas by providing a shutter in conjunction with the aperture 9 and connecting it to the indicator of the calorimeter. The supply of gas to the chamber 4 may be regulated by a valve 3.
Patent GB-387948-A (GB)
Title: Excess electric current switch
IPC: H01H73/18
Filed: 1932-08-17
Abstract: 387,948. Antomatic circuit-breakers. STOTZ - KONTAKT GES., Voltastrasse, Neckarau, Mannheim, Germany. Aug. 17, 1932, No. 23110. Convention date, Aug. 17, 1931. [Class 38 (v).] Arc-rupturing devices; contacts.-An excesscurrent switch has two or more breaking points arranged within a spark chimney in the field of two or more blow-out coils. The spark chimney b is divided by means of a partition c, which is straddled by a movable contact p having two points h, i for co-operating, respectively, with fixed contacts g, f slidable within the rear wall of the chimney. In the closed position, Fig. 3, springs n with insulating plates o press the fixed contacts against the movable ones, and provide a slight follow-up action in opening. Leads m relieve the springs n of current, and a pair of coils r provide the blowout and trip fields. The partition c may be arranged to divide the chimney into unequal parts and the smaller part may have either the major part of the blow-out field or the minor part, and in the latter case the contacts may open in succession with the final separation in the smaller chamber.
Patent GB-355477-A (GB)
Title: Improvements relating to feeding elongated flexible articles, for example glass tubes and canes
IPC: C03B23/11
Filed: 1930-07-31
Abstract: 355,477. Feeding glass rods and tubes &c. HADDAN, R., 31, Bedford Street, Strand, London.-(Corning Glass Works; Walnut Street, Corning, New York, U.S.A.) July 31, 1930, No. 23135. [Class 117.] In the feeding of elongated flexible articles such as glass rods or tubes to gauging or other machines, the articles are uniformly bowed to cause them to lie in parallel planes as they approach the feed point. The apparatus described comprises a hopper 19, Fig. 1, consisting of spaced supporting rails 35, 36, Fig. 3, the central rail 35 being adjusted on the cross bar 18 to a greater height than the side rails. The hopper is adjustable in its inclination about the bar 18 being secured by the notched bar 38. The feeding device consists of a rotating shaft 31 carrying two centrally disposed notched rollers 32 of slightly greater diameter than two side supporting rollers 33. The shaft 31 is mounted in bearings 30 supported in slots in the uprights 20 so as to be readily interchangeable and is driven through pinion and sprocket gearing from a shaft 15. Stationary guide discs 55 are mounted on the shaft 31 and are provided with tangential supports 56 and stops 57 to take the articles from the feed rollers and deliver them to the carriers 16 of a conveyer 13, driven by the shaft 15, by which they are transferred to the machine. Bars 44 with fingers near the feed point are actuated by the levers 50, 48 and link 47 when it is desired to withdraw the articles in the hopper from the feeder.
Patent GB-337060-A (GB)
Title: Improvements in or relating to variable shaft-couplings
IPC: F16D3/10
Filed: 1929-07-27
Abstract: 337,060. Hagemeister, J., and Janair, Ltd. July 27,1929. Shaft couplings. - A shaft coupling which permits angular adjustment of the coupled parts during drive, comprises internal and externallytoothed wheels 12, 10, of equal pitch diameters, the teeth being helical and of involute or cycloidal form. As shown in Fig. 5 the wheel 10 is fixed to one of the coupled parts 11 and the wheel 12 is feathered to the other part 13, angular adjustment being affected by endwise movement of the wheel 12, by means of a fork 18 acting through a ball-race 17. The device is applied to the valvegear of an internal-combustion engine in order to correct automatically the variation in valve timing consequent on the operation of a shiftable pivot device for varying the valve lift. As shown in Figs. 6 and 7, a valve-spindle 21 is actuated by a linkage 22, 24, 25, the lever 22 being mounted on an eccentric 27 secured to a shaft 28 rotatable in fixed bearings 29. The eccentric constitutes a shiftable pivot which is moved by means of a hand-lever 33 to bring the roller 30 nearer to or further from the path of a valveactuating cam 32, thus varying the valve travel. The alteration in timing due to this is automatically corrected by including in the drive shaft 130 of the cam a coupling 10, 12 of the abovedescribed type, the member 12 being axially movable by screw-and-nut means operated by the lever 33. The shaft 34 carrying the lever preferably has right- and left-handed screw threads engaging a fixed nut 36 and a non-rotatable operating nut 39, so that the endwise movement of the shaft 34 due to rotation in the nut 36 is added to the movement of the nut 39 so as to give an' increased movement to the wheel 12. Specifications 8870/12 and 284,106 are referred to.
Patent GB-838074-A (GB)
Title: Improvements in or relating to rotary piston blowers
IPC: F04C29/04
Filed: 1956-07-26
Abstract: 838,074. Rotary pumps. DUNKEL, M. M. July 26, 1956 [July 27, 1955], No. 23168/56. Class 110 (2). [Also in Group XIII] The outlet conduit of a Roots blower is provided with a cooler consisting of heat-conducting sheets 10 in contact with a sinuous cooling tube 11, the outlet conduit being elliptical or rectangular in cross-section and the sheets 10 extending into the working chamber of the blower, as shown.
Patent GB-863983-A (GB)
Title: Improvements in apparatus for moulding plastic materials by injection
IPC: B29C45/38
Filed: 1957-07-22
Abstract: 863,983. Injection-moulding machines. SPECIALITES ALIMENTAIRES BOURGUIGNONNES S. A. B. July 22, 1957 [Aug. 10, 1956], No. 23194/57. Class 87(2). By introducing fluid under pressure between a mould part 3 and a sprue plate 4, which together form a piston and cylinder, the mould part 3 and sprue plate 4 are separated and the sprue ejected. The fluid, e.g., air, from a duct 23 forces down a piston 16, in a cylinder 15, until the end of the piston 16 contacts the sprue plate 4 over an aperture 8 and fluid is admitted through a bore 25 to raise the sprue plate 4 and break the sprue off the moulded article 1 whereupon continued application of the fluid blows the sprue from the sprue plate into a tube 12 leading to the raw material hopper. Upward movement of the sprue plate 4 is checked by a ring 11 contacting the mould part 3, which upward movement also raises the piston 16 to stop the supply of fluid.
Patent GB-387612-A (GB)
Title: Improvements in or relating to straight bar knitting machines having means for moving the needles into or out of the operative position
IPC: D04B15/68
Filed: 1932-08-18
Abstract: 387,612. Knitting-machines. RÍMPLER AKT.-GES., J. and BAUMG€RTEL, C., 1A, Bahnhofstrasse, Zeulenroda, Thuringia, Germany. Aug. 18, 1932, No. 23214. [Class 74 (ii).] The needles of a straight-bar machine are provided with cam-engaging jacks 6 with which they are always in engagement. The jacks 6 are moved into and out of engagement with the cams 9 by auxiliary jacks 13, which in the operative position of the jacks 6, form bearings or seatings for those jacks. The jacks 13 are manually operated. The arrangement allows the needles 3 to remain always at the bottom of their tricks.
Patent GB-233206-A (GB)
Abstract: 233,206. Hamer, S. H. Aug. 5, 1924. Chucks.-The actuating screws C, of lathe chuck jaws or of face plate slides, are prevented from axial movement by collars A secured to the chuck &c. body bv screws B. The other end of the actuating screw may bear against a collar or a solid thrust block. The upper part of the collar A is removed to allow passage of the jaw &c.
Patent GB-672125-A (GB)
Title: Apparatus for generating television and like waveforms
IPC: H03K3/13
Filed: 1948-09-06
Abstract: 672,125. Television. COPE, J. E., HOLLAND, E. O., and PYE, Ltd. Aug. 31, 1949 [Sept. 6, 1948], No. 23399/48. Class 40 (iii). Apparatus for generating 'line and frame synchronizing pulses comprises a master oscillator 10, Fig. 1, producing a sine-wave a, Fig. 2, a squaring circuit 11 producing a square wave b of adjustable pulse-width, differentiating circuits 17, 18 producing pulses c, d of opposite sign, a master synchronizing-pulse circuit 12 fed with pulses c and producing pulses to trigger the line-pulse generator 14 and also, through a gating circuit 13, the frame-pulse generator 16, and a divider network 15 fed with pulses d and opening the gating circuit 13 periodically after the appropriate number of pulses. The width of the pulses b is adjusted, in order to compensate for the inherent delay in the divider network 15, so that the gating circuit is opened (e, Fig. 2) at an instant between and preferably substantially midway between two pulses c so that the next pulse f after that which opens the gating circuit will trigger the framepulse generator. A circuit arrangement, Figs. 3 and 4 (not shown), for the squaring circuit 11 forms the subject-matter of Specification 672,195, [Group XL (c)].
Patent GB-690294-A (GB)
Title: Improvements in temperature controllers
Inventor: COLLINS GEORGE THOMAS
IPC: G05D23/30
Filed: 1950-09-27
Abstract: 690,294. Automatic temperature control systems. BRITISH INDUSTRIAL PLASTICS, Ltd. Feb. 27, 1951 [Sept. 27, 1950], No. 23710/60. Class 38 (iv). A bimetallic strip thermostat controlling an electric heater has its differential reduced by a biasing auxiliary heater intermittently energized at a constant frequency. An electric heater coil HE is connected to a high frequency A.C. source by a mercury switch MR controlled by the bimetallic thermostat TC which detects the temperature of an unspecified object being heated by coil HE. The thermostat is also influenced by an auxiliary heater HW<SP>1</SP> which cannot by itself open the contacts of the thermostat. The heater is intermittently energized by pulses of a substantially constant frequency controlled by a temperature compensated interrupter ER, comprising a heater HW<SP>2</SP> and a bimetallic strip arranged to cycle continuously. It is stated that the heater HE may alternatively be energized from a D.C. source.
Patent GB-912880-A (GB)
Title: Safety control apparatus for operating fluid pressure-actuated devices
IPC: B23Q11/00
Filed: 1959-07-10
Abstract: 912,880. Compressed air actuated jacks. HERION, E. July, 10, 1959 [July 15, 1958], No. 23798/59. Class 8(2). [Also in Group XXIX]. Supply of compressed air to and exhaust from a jack 5 is controlled by a pair of 3-way control valves 50, 60 each having an inlet 2 in open communication with a supply duct 17 and with the inlet 2 of the other valve, a first outlet 3 in open communication with a combined supply and exhaust duct 4 leading to the jack and with the outlet 3 of the other valve, a second outlet 6 open to atmosphere and a valve member 9 which in one position opens a port 7 connecting the inlet 2 to the outlet 3 and closes a port 8 disconnecting the first and second outlets 3, 6 and in its other position closes port 7 and opens port 8 whereby when the valve member 9 of one control valve say control valve 60 as shown is acutated e.g. by manually depressing a knob 16 to open port 7, whilst the port 7 of the other valve 50 remains closed, compressed air passing through the open port 7 into the supply duct 4 is vented through the open port 8 of the valve 50 instead of passing to the jack which therefore cannot move until both valves 50, 60 are actuated. The valve member 9 of each control valve is connected to an operating piston 10 which in its operating position has its side remote from the valve member 9 vented to atmosphere through ports 13<SP>1</SP>, 14 whereon port 8 is closed. In its non-operating position i.e., when control knob 16 is released the port 13<SP>1</SP> is closed by an auxiliary valve 12 and supply pressure transmitted through a throttle valve 19 and a duct 11 depresses the piston 10 to open port 8 and close port 7; the area of port 8 being greater than that of port 7 which may be further reduced by a throttle 18. The auxiliary valve 12 of each control valve may be actuated by a solenoid 15.
Patent GB-261511-A (GB)
Title: Improvements in head rests
IPC: A61G7/07
Filed: 1925-09-24
Abstract: 261,511. Holmes, V. W. Sept. 24, 1925. Rests, head; bed rests.-In a head-rest for supporting the head in a face downward position, the weight of the head is supported at the forehead and also at some other part of the face, one or more apertures being provided to enable the user to breathe freely. The form shown in Fig. 1 comprises a metallic frame A supporting a cushion C, apertures B allowing the passage of air. Fig. 3 shows a modification consisting entirely of an inflatable cushion, while the headrest shown in Fig. 5 comprises a board R with a suitably shaped aperture S and padding T. Straps or hammocks of flexible material may be fitted to provide additional support.
Patent GB-626813-A (GB)
Title: Improvements in chair seats
IPC: A47C5/06
Filed: 1947-08-29
Abstract: 626,813. Seats. JOHNSON, Ltd., M. A., and RIDDULPH, H. Aug. 29, 1947, Nos. 23909/47 and 22082/48. [Class 52. (ii)] A chair seat comprises a length of canvas or the like having its ends reinforced by rods which are coupled together by coiled springs after the canvas &c. has been bent round the side frame members of the chair. As shown in the drawing which represents an underview the canvas 4 is bent round side members 3a of a chair and its ends which are hemmed to contain rods 5 are coupled together by coiled springs 6 either directly as shown or through a floating plate situated under the centre of the canvas top.
Patent GB-1122642-A (GB)
Title: Navigational instrument
Inventor: HERBERT ARTHUR RICHARD WILLIAM
IPC: G01C21/00
Filed: 1965-06-04
Abstract: 1,122,642. Measuring wind force and direction. A.R.W. HERBERT. July 20, 1966 [June 4, 1965], No. 23922/65. Heading G1R. A navigational instrument, such as for use on a water borne vessel, has a magnetic compass 24 mounted on a rotatable transparent dial 20 enclosing lamps 19 connected through a cable 34 to contacts 38 enclosed in a transparent dome 35 rotatably supporting a wind vane 41 provided with a disc 42 carrying a spring loaded contact 43 which engages one of the contacts 38 to illuminate a corresponding lamp 19 depending on the position of the vane 41 and to operate an audible alarm when any of the lamp 19, other than a selected one is energized. Marks 71, 72 enables the instrument to be aligned with the vessel. The device may be connected to the vessel steering gear.
Patent GB-149543-A (GB)
Title: Improvements in sound reproducing instruments
Filed: 1919-09-30
Abstract: 149,543. Jennings, F. A. Sept. 30, 1919. No Patent granted (Sealing fee not paid). Sound-boxes, mounting; tool-arm mountings; tone-arms.-Two sound-boxes d are held together by screws d<3> passing through distance-pieces d<2>. There may be a single stylus-bar connected to both diaphragms, or two stylus-bars with needles 3/16 of an inch apart. Each stylus-bar pivots about a line through three or four screw-points e. The arms c bearing the sound-boxes are swivelled in a sleeve b on the tone-arm a, a sound-deflector d<6> being provided.
Patent GB-461986-A (GB)
Title: Improvements in means for clamping printing plates to the forme cylinders of copper plate printing machines
IPC: B41F27/12
Filed: 1935-08-27
Abstract: 461,986. Printing - surfaces. VOMAG BETRIEBS AKT.-GES. Aug. 27, 1935, No. 23997. Convention date, Aug. 27, 1934. [Class 100 (ii)] Printing-plates are secured to the cylinders of copperplate printing-machines by attaching one end of the plate to an adjustable tensioning device mounted within the cylinder, while the other end is passed round a segment-shaped member, also adjustable transversely of the cylinder for tightening purposes, and is turned inwards to lie upon the first-mentioned end of the plate so that the two end portions are clamped between the segment-shaped member and the cylinder body. The printing-plate 1 has one end 3 attached by bolts and a clamping bar to a rail 6 which is in screw-threaded engagement with a bolt adjustable by worm gearing from a shaft 15. The other end 2 of the printing-plate is brought round a movable segment 17, which is so arranged that the parts of the plate adjacent the ends thereof are brought into contact and no gap is left in the cylinder circumference. The end 2 of the plate may be attached to the segment 17 which is also movable by worm gearing from a shaft 15<a> parallel to and symmetrical with the shaft 15. The shaft 15<a> serves to rotate a screw spindle carrying a slidable tightening jaw 18, the movement of which like that of the rail 6 may be limited by a stop, and which imparts sliding movement to the segment 17. The shafts 15, 15<a> are actuated from the cylinder ends and may be operated simultaneously for adjusting and tensioning the plate. The ends of the cylinder may be covered by annular discs which are provided with projections engaging recesses in the segment 17 and the cylinder ends and serving to hold the segment in its normal position.
Patent GB-203891-A (GB)
Title: Improvements in magneto brush and feed oiler attachments for internal combustion engines
IPC: F01M9/10
Filed: 1922-09-05
Abstract: 203,891. Martin, W. Sept. 5, 1922. Contacts, arrangement of external. -A contact member or brush held against the fixed element of the magneto assembly of an internal-combustion engine is combined with an oil catching and delivering device, the two parts being insulated from one another. A barrel 1 bolted to the casing h has a projection 4 which catches oil thrown by the magneto rotor and leads it through an outlet 2 to a pipe b. A threaded stem 15 of a contact holder 14 passes through a hole 5 in the barrel and is secured thereto by a nut 21, insulating washers 18, 19 being provided. The holder 14 contains a contact member 11 held yieldingly against a contact element c on the magneto stator a<1> by a spring 16. The member 11 has an enlarged head 12 and is held within the holder 14 by contracting the end 17 of the holder. The stem 15 serves as a binding post for a wire w of the electric circuit, the wire being secured by a nut 21'.
Patent GB-978159-A (GB)
Title: Solid moderator stack for nuclear reactors
IPC: G21C5/08
Filed: 1961-07-04
Abstract: 978,159. Moderator structures. COMMISSARIAT A L'ENERGIE ATOMIQUE. July 4,1961 [July 4, 1960], No. 24092/61. Heading G6C. A moderator structure comprising prismatic columns 1 of beryllium or beryllium oxide stacked side-by-side and connected by keys 8 oriented parallel to at least three directions passing through the axes of the columns 1 and engaged in longitudinal grooves machined in the lateral faces of the columns, is characterized in that each of the columns 1 is made up of superposed tubular elements of polygonal external outline each element consisting of separate indentical prisms, such as prisms 5, 6 and 7 in Fig. 1, one longitudinal face of each of which forms part of the duct which passes axially through the columns 1. The dividing of the elements into separate prisms prevents inadmissible stresses from being set up due to the difference in temperature existing between the internal and external surfaces of the elements, beryllium and beryllium oxide having an appreciable modulus of elasticity, a low tensile strength and a high coefficient of thermal expansion. Each element is angularly displaced with respect to its neighbours so that the planes in which the prisms in one element are in contact do not merge with those of adjacent elements. Columns 2, 3 form a reflector with metal stabilizing posts 4 disposed in the columns 3. As shown in Fig. 2, centring pieces 9 are provided on the upper faces of the prisms and engage corresponding recesses 10 in the lower faces of the prisms. Embodiments are described in which the columns 1 are of regular hexagonal, flattened hexagonal, and square cross-section. Specifications 913,818 and 977,019 are referred to.
Patent GB-949310-A (GB)
Title: Boron hydrides
IPC: C07F5/00
Filed: 1959-07-14
Abstract: Hydrides of boron, particularly diborane, are prepared by reacting an organic ester of boric acid with aluminium metal and hydrogen at elevated temperatures.  Suitable esters are listed, examples being triphenyl borate, trimethyl borate, tri-(t-butyl) borate, tricyclohexyl borate, tribenzyl borate and tri-(p-chlorophenyl) borate.  Tertiary amines which form complexes with the boron hydrides may be present as diluents, examples of which are triethylamine, trimethylamine, and triphenylamine; diborane is obtained from these complexes by acidification with hydrochloric acid or boron trichloride at room temperature.  Other diluents are specified, including alkyl, cycloalkyl and aromatic hydrocarbons and ethers. The aluminium is preferably in finely divided form and may have been activated by treatment with triethyl-aluminium and hydrogen at 140 DEG  C. and 1000 lbs. per sq. inch pressure or by recycling excess aluminium from a previous run. Reaction temperature may be 120-300 DEG  C., 140-180 DEG  C. being preferred in the absence of a tertiary amine and 200-250 DEG  C. when a tertiary amine is present.  Hydrogen pressures of 500 to 5000 lbs. per sq. inch may be employed.  The reaction may be catalyzed by trialkyl aluminium or boron compounds or by aluminium halides, especially aluminium chloride.  The boron hydride or its complex with the tertiary amine is removed from the product by distillation; by-product aluminium alcoholate may be recovered and hydrolysed to form the alcohol which is reacted with boric oxide to produce boron alcoholate for re-use in the process.