baber/WOPTO huggingface dataset:
Patent GB-221281-A (GB)
Title: Apparatus for cutting the teeth of wheels by rolling movements
IPC: B23F5/14
Filed: 1923-06-09
Abstract: 221,281. Barth, R. C. June 9, 1923. Gear-cutting. - In a machine for generating toothed gears by the process wherein a blank, which is continuously rotated until all the teeth are cut, is first rolled past a reciprocating cutter, and then moved back bodily to effect indexing, through a distance equal to the difference between one or more pitch lengths and the forward rotation which has taken place during the rectilinear backward movement, the generating movements of the blank are effected by two independent sets of change wheels which control the rotary and rectilinear movements respectively. In order to avoid any pause in the cutting and to ensure that the same weight of metal is removed at each stroke of the cutter, the rectilinear backward movement of the blank is effected during a single return stroke of the cutter. The main pulley 101 drives through chain gearing 108 shaft 110 and change wheels 116 to impart continuous rotation to the blank while the tangential movement of the blank is effected through change gears 117 from a shaft 113 which is provided with a clutch member 114 engageable either with a loose wheel 112 driven from the shaft 110 or with a wheel 118 driven alternately in opposite directions by means of a rack bar 119 operated from a crank disc 121 bevel driven from the main shaft. The latter also carries a crank disc 103 which actuates the reciprocating tool slide 105. In order to give the blank a slow tangential movement during the generating roll the clutch 114 engages a notch in the wheel 112 which is arranged to receive one complete rotation while the blank table moves through one pitch. At the completion of the generating movement a fixed cam 128 engages a stop 124 on the clutch and moves the latter into engagement with the wheel 118, this engagement being assisted by a cam 125 coacting with a fixed cam 131. The crank 121 is so arranged that the wheel 118 is stationary at the instant the clutch 114 is engaged therewith so that the reversal can be effected without shock. The wheel 118 then rotates reversely from the wheel 112 and so moves the blank backwards by a distance slightly greater than one pitch. Finally the wheel 118 is reversed by its driving rack whereupon the cam 125 on the clutch engages a fixed stop 134 to shift the clutch into engagement with the wheel 112 for another forward rolling operation.
Patent GB-129171-A (GB)
Title: Improvements in Open Bleach Kiers and the like.
IPC: D06B3/32
Filed: 1918-09-18
Abstract: 129,171. Jackson & Brother, and Fish, J. R. Sept. 18, 1918. Circulating or passing materials through fluids. -In a kier for bleaching &c. textile fabrics in the open state, and of the type in which the fabric is alternately batched upon one or other of two rollers, the direction of which is automatically reversed as required, the intermediate drum is combined with electric means for effecting the said rotation and for controlling the speed of the fabric as it is wound off one batch roller on to the other. The intermediate drum D is carried by pivoted arms C, which are gradually moved over as the material passes from the roller H<1> on to the roller H, actuating through the levers B, A, and shaft F a speed-controlling and reversing device for the reversible driving-motor, or for two non- reversible motors. In the arrangement shown in Fig. 4, a single non-reversible motor U is employed, the shaft F actuating through a rack O. a speed controller G, and a switch S, which latter controls two magnetic clutches T, T', by means of which reversal of the batch-roller driving- shafts L, L<1> is obtained. As another alternative, a reversing-switch S may control the current energizing a solenoid, the plungers of which act upon a lever to move a belt from one pulley to another and thus effect reversal.
Patent GB-1022231-A (GB)
Title: Improvements in or relating to means for supporting yarn packages from frame members
IPC: D02H1/00
Filed: 1962-04-27
Abstract: A creel has frame member 3 and spindles 1 with dogs 12 and spring-loaded washers so that the spindle 1 may be inserted and rotated to retain it in position.
Patent GB-1361411-A (GB)
Title: 11beta-methyl-17alpha-propadienyl steroids
IPC: C07J75/00
Filed: 1971-05-17
Abstract: 1361411 17α-Propadienyl steroids SANDOZ Ltd 17 May 1971 [21 May 1970] 15236/71 Heading C2U The invention relates to the #<SP>4</SP>- and #<SP>5(10)</SP>- derivatives of steroids of formula (wherein R is Me, Et or Pr<SP>n</SP>; and R 1  is H, Me, C 2-4  alkanoyl, or acetoacetyl), these compounds being claimed per se with the exception of 11#- methyl - 17α - propadienyl - 17# - hydroxyestr- 4 - en - 3 - one (for which see Specification 1,361,412). Compounds I are prepared by acid hydrolysis of the corresponding 3-alkoxy-#<SP>2,5(10)</SP>, 3-alkoxy- #<SP>3,5</SP>, 3,3-dialkoxy-#<SP>5(10)</SP>, 3,3-ethlenedioxy-#<SP>5(10)</SP> or 3,3-trimethylenedioxy-#<SP>5(10)</SP> compounds, and are interconvertible by 17-alkanoylation, 17- acetoacetylation (e.g. with diketen) and isomerization of #<SP>5(10)</SP> to #<SP>4</SP>. 3 - Methoxy - 11# - methyl - 17α - propadienylestra - 2,5(10) - dien - 17# - ol and its 13 - ethyl homologue are prepared from the corresponding 17-ones by organometallation to give 17α-(3- dimethylamino - 1 - propynyl) - 17# - ols followed by quaternation to give 17α-(3-trimethylammonio - 1 - propynyl) - 17# - ols followed by reduction with NaAlH 2 (OCH 2 CH 2 OCH 3 ) 2 , LiAlH 4 , LiBH 4 , LiGaH 4 , Mg(AlH 4 ) 2 , LiAlH(Me)(Bu<SP>i</SP>) 2 , LiAlH(OMe) 3 , AlHEt 2  or B 2 H 6 . 3,17# - Dimethoxy - 11# - methyl - 17α - propadienylestra - 2,5(10) - diene is prepared by methylation of the corresponding 17#-ol. Progestational compositions for oral and parenteral administration comprise a compound I (excluding 11#-methyl-17α-propadienyl-17#- hydroxyestr-4-en-3-one) and a carrier.
Patent GB-111502-A (GB)
Title: Improvements in Appliances used for Gripping and Releasing Ropes used in Winding, Hauling, Guiding and like purposes.
Inventor: HANLEY ALBERT
IPC: B66B5/24
Filed: 1916-10-26
Abstract: 111,502. Hanley, A. Oct. 26, 1916. Overwinding, preventing.-Relates to means for preventing overwinding and to catch gear for use with mining and like cages and for hauling and winding apparatus generally. Figs. 1 and 2 show the application to a, mine cage. The core of the suspension-rope R is replaced by a soft rod U which is hooked through a hole O<1> in a plate H connected to the cage by a chain T and spring V. The rope R is gripped by corrugated surfaces formed or secured on the parts A<1>, A<2> of a rope capple or on wedge pieces C<7>, C<8> automatically tightening their grip under the pull on the rope. The rope strands S<1>, S<3> pass through slots M<1>, M<2> in the pieces C<7>, C<8> and are gripped between the pieces and the walls of the parts A<1>, A<2>, a screw plug P providing additional security. A collar D and cross-pieces I, I<2>, all held by shearable screws, together with a shearable bolt B<1> and shearable pins N<2>, N<3> keep the parts normally in the position shown in Fig. 1. If overwinding occurs, the device passes through the usual detach-plate P<2>, Fig. 2, at the pit head and the collar D is sheared away, shearing away the cross-pieces I, I<2> and striking projections J<1>, J<2> at the lower end of the parts A<1>, A<2>, so) that the pins N<2>, N<3> and the bolt B<1> are ruptured, the parts A<1>, A<2> swing open on the pivot pin L<1> and the rope R is released. Lateral projections K on the part A<1>, A<2> engage the plate P<2> and prevent fall of the cage. If the rope breaks while the cage is moving, the whole device falls with the cage and tilts over so that grips C<4> on the plate engage the guide rope G and sustain the cage. According to the Provisional Specification, the detach-plate may be so shaped as to be engaged by the projecting upper ends of the parts A<1>, A<2>.
Patent GB-140669-A (GB)
Title: Corrugated steel alloy tea rolling machine table
IPC: A23F3/12
Filed: 1919-06-18
Abstract: 140,669. Sutton, L. H. June 18, 1919. Tea, rolling.-The table of a tea-rolling machine is of square shape with a central depressed opening F, and with corrugations C along the sides. The table is formed of stainless steel, that is, steel alloyed with chromium. In the Provisional Specification, the steel is stated to be nickel-steel.
Patent GB-372114-A (GB)
Title: Improvements in or relating to saucepans and the like
IPC: A47J27/212
Filed: 1931-05-23
Abstract: 372,114. Saucepans &c. BUNCHER & HASELER, Ltd. and RODGERS, R. C., 101, Branston Street, Birmingham. May 23, 1931, No. 15276. [Class 66.] A saucepan or like vessel intended especially for boiling eggs is provided with a lid c, Fig. 2, having a tapered flange d fitting within the flared mouth b and formed with a flange g bedding on a flange f at the mouth of the pan. The lid is fitted with a whistle comprising perforated discs n, o, mounted in an outwardlyprojecting tubular member m. A spring-controlled opening-lever h pivotally mounted on the handle engages between the flanges f, g. A removable device r, Fig. 3, is provided for holding the eggs.
Patent GB-1458904-A (GB)
Title: Liquid level indicating system
IPC: G01F23/16
Filed: 1974-04-08
Abstract: 1458904 Liquid level indicators COULTER ELECTRONICS Inc 8 April 1974 [9 April 1973] 15396/74 Heading G1H Liquid level indicating apparatus 10 comprises a source 12 of pressurized fluid such as air, an open-ended line 32, 34, 38, 42, 44 extending from the source into a vessel 14 containing liquid whose level is to be indicated, and fluidic control means coupled to the line such that when the level of liquid falls bubbles issue from the end of the line causing pressure fluctuations in the line which cause the control means to intermittently operate the piston 70 of a piston/cylinder device 20 such that it strikes against a stop 74 to give an audible alarm. As shown the fluidic control means comprises a turbulence amplifier 16 having a control part 30 connected via line 40 to the open-ended line and having an output 26 connected to operate a fluidic switch 18 to control the supply of fluid-pressure from source 12 through switch 18 to the device 20. Chokes 48, 50 may be provided in the open-ended line so that the level at which the apparatus operates can be adjusted. A pressure-sensitive coloured visual indicator 22 may be connected in parallel with the piston/cylinder device 20 to indicate when the liquid level falls below the open end 46 of the line.
Patent GB-731327-A (GB)
Title: Improvements in or relating to piston and connecting rod assemblies
IPC: F16J1/14
Filed: 1953-06-05
Abstract: 731,327. Connecting-rods. PITNER, A., and SOC. ANON. DES ROULEMENTS A AIGUILLES. June 5, 1953 [June 7, 1952], No. 15510/53. Class 122 (1). [Also in Group XXII] A hollow gudgeon-pin 3, Fig. 2, with hardened end surfaces 9a journalled in a piston 7 is expanded at its centre portion into tight engagement with the bore 5 of the connecting- rod 7. The expanding means may comprise an integral or inserted partition 13 which is axially compressed between rams 10a, 10b or may be an annular integral or inserted member 14, Fig. 3, expanded by a conical wedge 16 which may be screw-threaded therein. In modifications, the annular member 14 may be an inserted splitring or a helical coil.
Patent GB-588442-A (GB)
Title: Improvements in ventilators and the like
IPC: F23L17/10
Filed: 1945-08-17
Abstract: 588,442. Chimney tops. HOUTEN, P. VAN. Aug. 17, 1945, No. 15523/44. [Class 25] A wind-operated rotary chimney cowl, of the kind comprising a series of vertical vanes 19 carried by a cone 20 to which further vanes 21 are secured, is supported on a stirrup 4, attached to a chimney pot 2 by spring fingers 3, by a tube 5 which is filled with oil and within which is secured by collars 11 a bearing tube 10 for a spindle 9. The latter rests at its lower end on a ball 8 and at its upper end passes through a conical boss 15 from which depends a tube 16 encircling the tube 5 and carrying the disc 17 to which the vanes 19 and core 20 are secured. The tube 5 and collars 11 are formed with apertures which provide for access of oil to the spindle 9 and its bearings. The complete cowl is secured to the spindle 9 by a nut 24 which clamps the boss 15 against a collar 22.
Patent GB-140671-A (GB)
Title: Improvements in gramophone cabinet cover
IPC: G10K13/00
Filed: 1919-06-23
Abstract: 140,671. Myers, F. June 23, 1919. Cases.-The horn is secured in the hinged cover of the gramophone cabinet and is arranged to communicate with the tone-arm when the lid is open or closed. The horn 24 comprises a sloping top plate 25, a bottom plate 18, and two side plates converging towards a tubular neck 27. When the lid 20 is closed, the neck 27 registers with the upper end of a fixed tube 31 communicating with the hinged tone-arm. When it is desired to play with the lid raised, a detachable curved tube 36, interposed between the neck 27 and the vertical tube 31, forms a sound conduit and a support for the lid.
Patent GB-935459-A (GB)
Title: A process for use in the production of a semi-conductor device
IPC: H01L23/31
Filed: 1961-05-01
Abstract: 935,459. Semi-conductor devices. SIEMENSSCHUCKERTWERKE A.G. May 1, 1961 [April 30, 1960], No. 15772/61. Class 37. A protective coating for a PN junction is provided by a lacquer which is electropositively active and consists of either silicone resin and a terphthalic ester resin or of a silicone resin and a resin based on phenol. An additional electropositive material such as alizarin may be added. As a solvent for the former compound may be used cyclohexanone with toluene and for the latter xylene with cyclohexanone. The lacquer is applied by painting or spraying on the junction and the adjacent zones and is converted to its cured state by treatment at 200 C. for about 10 to 15 hours. The Figure shows a silicon diode having a weakly P conducting body 1 with alloyed electrodes 2 of gold antimony to provide an N conducting zone, and another 3 of aluminium to provide a P zone. Molybdenum plates 4, 5 are connected to the electrodes in the same alloying operation as that in which electrodes 2, 3 were attached. The protective lacquer 6 is applied where the PN junction emerges at the surface of the body, e.g. by spraying after masking the rest of the body. The lacquer is then cured. Plates 4, 5 may be of tungsten or tantalum soldered to electrodes 2, 3.
Patent GB-384202-A (GB)
Title: Improvements in and relating to chain tumblers
IPC: E02F3/14
Filed: 1932-06-04
Abstract: 384,202. Chain tumblers. NAAMLOOZE VENNOOTSCHAP GEMEENSCHAPPELIJKE MIJNBOUWMAATSCHAPPIJ BILLITON, 21, Prinsessegracht, The Hague. June 4, 1932, No. 15803. Convention date, July 30, 1931. [Class 80 (i).] A tumbler for the chains of dredgers, excavators, elevators &c. comprises a pair of endplates 15 which are secured to a shaft 14 and in which are pivotally mounted, on axes parallel to the shaft axis, bars 9 having plane surfaces 20 adapted to engage the chain links and central extensions 11 forming teeth. The bars are free to rotate, against the restraint of spring discs 17, so as to adapt themselves to the chain, and may be interconnected by rods. Alternatively, the bars may be adapted to be locked in adjusted positions.
Patent GB-596413-A (GB)
Title: Improvements in transmitting rods for deep well pumping
IPC: E21B17/10
Filed: 1945-06-21
Abstract: 596,413. Sucker rod assemblies. THATCHER, A. J., THATCHER, G. R., and BRIXEY, I. A. C., [trading as NEW MENDIP ENGINEERING CO.]. June 21, 1945, No. 15850. [Class 85] A sucker rod assembly for deep well pumping comprises rod sections 1, Fig. 1, formed of tubes closed at the ends by plugs 2 welded thereto, the tubes also being swaged into grooves 4 in the plugs ; the rod sections connected by members having threaded shanks 6 engaging holes in the plugs 2 and locked thereto by nuts 11 and split-pins, the members having a central boss 5 from which project bifurcated carriers 7 in which are secured plain faced rollers 8 for engagement with the rising main. The threaded shanks 6 may be provided on the plugs 2 and enter holes in the connecting members. In another form, Fig. 3, each connecting member comprises a pair of aligned frames 12 relatively offset by a right angle and each carrying a plain faced roller 13. The tubes and connecting members may be of corrosionproofed metal, and the rollers of metal, fibre or other composition.
Patent GB-717755-A (GB)
Title: Improvements in and relating to ignition systems
IPC: F02C7/266
Filed: 1951-07-04
Abstract: 717,755. Ignition systems; sparking plugs. BRITISH THOMSON-HOUSTON CO., Ltd. July 4, 1951 [July 6, 1950], No. 15875/51. Class 7(4) In an ignition system comprising two separate spark-electrode units 3, 4 each having a single electrode 5, 9, respectively, and means for energizing the electrodes simultaneously with potentials of opposite polarity to cause a spark to jump therebetween, the energizing means includes two separate but inter-connected H.T. windings 13, 16 which are connected in series between the electrodes, two separate but interconnected L.T. windings 12, 15 and a source of sparking voltage, such as a battery 19, connected to the L.T. windings. The L.T. windings 12 and 15, are connected in series through a common point 18, the circuit including a condenser 21 and a switch 20; the H.T. windings 13, 16 are also connected in series through the point 18, the outer end of each winding being connected to one of the electrodes 5, 9 in the combustion chamber 1 of a jet engine, the two electrodes forming between them a spark gap of about half-an-inch in length. Each electrode is located in a ceramic insulator 6 within a metal housing 7 which has a flange 8 whereby it is secured to the chamber 1. Connected across the condenser 21 is a vibrator 22 so that when switch 20 is closed and the circuit of the L.T. windings is interrupted by the vibrator 22 the condenser 21 is charged by the voltage induced in the L.T. windings, the cables and electrodes of the H.T. circuit also being charged by the voltage induced in the H.T. windings 13, 16. When the voltage between the electrodes 5, 9 reaches the breakdown value a high-frequency spark will jump the gap and dissipate the energy stored in the capacitance of the H.T. circuit after which the condenser 21 discharges through the gap at a lower frequency to be followed by the discharge of the inductive energy of circuit. Due to the arrangement of coils and electrodes the sparking voltage is about double the usual value as is the capacitive and inductive energy in the circuit. The system is used for starting purposes.
Patent GB-532665-A (GB)
Title: New compositions comprising solid ethylene polymers
IPC: C08K3/04
Filed: 1939-05-30
Abstract: 532,665. Ethylene polymer compositions. HABGOOD, B. J., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. May 30, 1939, No. 15938. [Class 2 (iii)] Compositions are prepared by mixing 100 parts by weight of one or more " solid ethylene polymers with 25 to 60 parts by weight of one or more of the following carbon blacks, viz. channel black, acetylene black or light lamp blacks having a particle size not exceeding 100 millimicrons. By " solid ethylene polymers " is meant polymers of ethylene and also halogenated polymers of ethylene, which polymers are solid at room temperature, do not melt or soften below about 90‹C. and have a molecular weight of between 10,000 and 150,000 ; these polymers may be prepared as described in Specifications 471,590 and 481,515. The composition may be prepared by milling the ingredients under heat in a mixer or rubber mill, and may be used as dielectrics and for the manufacture of pipes, valves and linings for chemical plant. According to the Provisional Specification, the carbon black may be employed in a proportion of at least 10 per cent. on the weight of the polymer.
Patent GB-708407-A (GB)
Title: Sewing needle clamp
IPC: D05B55/02
Filed: 1952-06-25
Abstract: 708,407. Sewing - machines. SINGER MANUFACTURING CO. June 25, 1952 [July 25, 1951], No. 15948/52. Class 112 Needle-holders. In a needle - holder of the kind in which a needle 15 having a flat face 25 on its shank is held with that face against the flat bottom of a groove 14 in the needle-bar by a movable clamping member or gib 21 actuated by means such as a screw 18, the gib is formed with a groove to receive the needle; the needle-releasing movement of the gib is preferably limited to a value less than the difference between the maximum and minimum diametral dimensions of the needle shank, so that there cannot be room to insert the needle except in the right orientation. In the form shown the screw 18 is carried by the usual clamping band 17 fixed to the needle-bar by a screw 22, and the clamping band and needle-bar are formed with cylindrical recesses fitting the cylindrical gib 21, movement of the gib away from the needle being limited by engagement of a locating finger 28 and the shank of a thread guide 29 (both on the gib) with the inner surface of the clamping band; a groove in the lower end of the needle-bar equal in width to the gibreceiving recess permits assembly of the clamping band and gib on the needle-bar. A pin 16 positions the needle vertically. Needles. The needle shank may be round in section except for the flat face 25, or it may be pentagonal, the groove in the gib being formed to correspond.
Patent GB-291408-A (GB)
Title: Improved machine for opening tins of preserved goods
IPC: B67B7/46
Filed: 1928-05-31
Abstract: 291,408. Darque, E. M. June 1, 1927, [Convention date]. Opening by cutting. - Relates to a machine for cutting out the ends of tins of the kind formed with an outer soldered or bezelled edge at the end, which edge is gripped between milled wheels and the tin rotated as the cutting proceeds. The underside of the bezelled edge is pressed on to the sharp edge of a milled wheel 6, Fig. 1, mounted on a shaft 4 caused to turn by means of a handle 5. Fixed and loose cams 7, 8 are also mounted on the shaft, turning of which causes cam 7 to be raised by a spring-pressed friction roller 9 thereby raising a lever 2 which forms a bearing for the shaft and causing the milled wheel and the tin to rise. In this movement, shown completed in Fig. 4, the circular cutter 17, mounted on an inclined shaft 15, pierces the end close to the wall of the tin the bezelled edge of which becomes gripped between milled wheels 6, 16, thereby causing the tin to be rotated. Since cam 7, like cam 8, is hollowed to receive the roller 9 the shaft 4 would fall and stop the cutting operation but for the presence of cam 8. This cam having a slot 11, Fig. 5, engaged by a stud 12 projecting from cam 7 is constrained to move therewith after an interval, thus providing for the hollow of cam 7 to be covered by a circular part of cam 8 so that the two form a cylinder which rolls on the roller 9 and maintains shaft 4 raised to enable the cutting to be completed. The end being cut out, a turn of the handle 5 in the opposite direction causes a reverse relative movement of the cams, which in due course both present a hollow to the roller 9 whereupon the shaft 4 and milled wheel 6 fall away from the cutter, the shaft bearing 2 being further pressed downwardly by a spring 13 to cause disengagement of the tin.