baber/WOPTO huggingface dataset:
Patent GB-528968-A (GB)
Title: Improvements in or relating to coal cutting machines and the like for the laying of dust and suppression of flame, and dissipation of gas
IPC: E21C35/22
Filed: 1939-05-01
Abstract: 528,968. Coal-cutting machines &c. WALKER, J. C., EVANS. W. R., and SHELTON IRON, STEEL & COAL CO., Ltd. May 1, 1939, No. 12924. [Class 85] In a coal-cutting or like machine with means for laying dust, suppressing flame, and dissipating gas by spraying, each spray is formed by passing compressed air and water through a mixing nozzle. The water may be supplied to the nozzles A through a pipe F from a main, or from a receptacle T on or near the machine C. The compressed air may be supplied from a source H by which the machine C is operated.
Patent GB-246707-A (GB)
Title: Improved key-controlled driving mechanism for typewriters, type-setting machines or the like
IPC: B41J7/90
Filed: 1925-05-18
Abstract: 246,707. Polygraphische Ges. April 23, 1925, [Convention date]. Addition to 210,731. Relay actions. - The cams 5 of the key-controlled driving - mechanism for typewriters, type-setting machines, &c. described in the parent Specification are now mounted in pivoted yokes 7 engaging, preferably at the ends, the action rods or slides 8. After actu.ation the action rods return the yokes into contact with a stop 16. The cam-latches 4 and springs 9 therefor are preferably mounted in the yokes. The strikers 2 for moving the cams into contact with the driving-roller 6 may be mounted on rocking arms 13 connected to arms 19 operated by the keys 1, the movement of the arms 13 being limited by adjustable stops, preferably eccentrically mounted spindles 12. To avoid crowding, the keys 30 - - 35 and the associated arms 19 in each half-bank may, as shown in Fig. 2, be secured to a spindle 20 and concentric tubes 21 - - 25.
Patent GB-611378-A (GB)
Title: Improvements in arc welding apparatus fed with alternating current
IPC: B23K9/073
Filed: 1946-04-30
Abstract: 611,378. Supply systems for welding arcs. PHILIPS LAMPS, Ltd. April 30, 1946, No. 12971. Convention date, Dec. 23, 1941. [Class 38 (iv)] The condenser 10 and series choke coil 11 for an A.C. arc-welding circuit are of constant value and are connected in the secondary circuit of an auxiliary variable-ratio transformer connected in series preferably with the secondary winding of supply transformer 3 and the welding load 5; preferably, the auxiliary transformer 8 has the number of secondary turns variable by a tapping 12.
Patent GB-563042-A (GB)
Title: Improvements in or relating to apparatus for preventing and removing the accumulation of ice on surfaces exposed to icing conditions
IPC: B64D15/16
Filed: 1942-09-16
Abstract: 563,042. Preventing ice accumulation on aircraft. GEER, W. C. Sept. 16, 1942, No. 13076. Convention date, Sept. 20, 1941. [Class 4] In means for preventing the accumulation of ice on the surface o aircraft and other structures' comprising a covering adapted to be distorted by inflatable elements, there is provided in addition to the elements that are inflated for usual icing conditions, elements that are inflated at a higher pressure to remove heavy glaze ice that may be formed. The elements that are normally inflated at the lower pressure may also be inflated at the higher pressure. As shown, a shoe 10 mounted on the forward edge of an aircraft wing 11 comprises elements 16, 17, 18 normally for low pressure inflation disposed between a bottom layer 14 and a stretchable surface layer 15. Strips 19 of stretchable fabric may be spaced along the shoe as described in Specification 518,180. Elements 23 ... 27 for high pressure inflation are disposed one above the element 17 and others at the edges of the group 16, 17, 18 and at the margins of the shoe. The elements 16, 18 may be inflated in alternation with the element 17 by a motor driven distributer 28 of the kind described in Specification 545,637, to which may be coupled a similar distributer 32 for the elements 23 ... 27, the distributers being respectively connected to low and high pressure supply pipes 29a, 33. The elements 23 ... 27 may instead be manually controlled by valves 37, 38 and the distributer 28 with the elements 16, 17, 18 may be connected to the high pressure supply through the pipe 39a and valve 40.
Patent GB-549752-A (GB)
Title: Improvements in fixing brackets for curtain rods or rails
IPC: A47H1/102
Filed: 1941-10-11
Abstract: 549,752. Curtain-rod brackets. CLAY, A., and WICKER, J. C. Oct. 11, 1941. No. 13121. [Class 52 (v)] A fixing bracket for curtain rods or rails adapted for alternative wall or ceiling fixing comprises a block of synthetic material pierced by screw holes a<3>, a<4> intersecting at right angles and having an integral tapped boss a<1> to receive .. the screwed spigot b<1> of a rod or rail retaining socket b.
Patent GB-916003-A (GB)
Title: Machine for assembling fastener units
Inventor: SCHOTT WARREN BURROUGHS
IPC: B23P19/08
Filed: 1961-04-13
Abstract: 916,003. Assembling screws and washers. BARWOOD MANUFACTURING CO. Inc., L. J. April 13, 1961, No. 13252/61. Class 83 (2). In a machine for assembling screws and washers in which a washer is threaded upwardly on to a screw suspended by its head in a fixed position, the operation of the machine is stopped unless the availability of a screw and a washer are satisfactorily checked by the completion of electric circuits through a screw and a washer at checking positions. The washer is a metal washer having a plastic insert. Feeding screws. The screws 10 are supplied by a vibratory tray type magazine to the top of an inclined slideway comprising spaced rails 21 and adjustable bars 22, 38 engaging the heads of the screws 10. When the leading screw engages stop pin 23 a first control circuit is completed through the pin 23 and the screw to start the washer feed and to actuate compressed air cylinders 30 and 25. A transfer bar 24 is actuated through a resilient connection 28 by the cylinder 25 to transfer the leading screw into engagement with a stop-bar 29 determining the assembly position and moved by the cylinder 30 until halted by an adjustable stop 34. A resilient hold-down plate 36 engages the head of the screw. Feeding washers. The washers 11 are fed by a vibratory tray type magazine on to a conveyer belt 51. The belt is pressed upwards by a spring-loaded bar 52 and the washers 11 are held down by an adjustable member 53. At one point on the belt the presence of a washer lifts a control which causes an air jet to blow washers in the outlet of the magazine back into the tray. The washers 11 leaving the belt 51 are pushed along a guide until the leading washer rests between spring-loaded pivoted arms 63 on a vertically movable plunger 60 in engagement with a contact 66. A pivoted member 68 retains the washer on the plunger 60. A second control circuit completed through the contact 66 and the leading washer de-energizes a solenoid 78 to allow a spring-loaded clamp 76 to grip a washer 11 in the feed path to stop feeding of the washers. Assembly. The second control circuit also initiates upward movement of the plunger 60. A plate 72 secured to the plunger 60 releases a rod 69 to allow the retaining member 68 to swing clear. As the plunger 60 threads the washer 11 on to the screw 10, the plate 72 actuates in turn switches LS2, LS3 which respectively return the transfer and stop-bars 24, 29 and lower the plunger 60. The assembly is freed by an ejector rod 64 in the plunger 60 and is blown clear by an air blast. When the plunger 60 reaches its initial position, a switch LS1 operates to restart the cycle if a screw is in position to complete the first control circuit.
Patent GB-132808-A (GB)
IPC: B63B21/44
Abstract: 132,808. Hein, H. W. J. Feb. 14, 1916, [Convention date]. Anchors.-With a view to increasing the gripping power of stockless anchors the flukes 13 are situated close to the shank 11 and are provided with inner ribs 15, which run back into the head and are there merged in bearing-surfaces 14<a>, 14b formed substantially at right-angles on stabilizing- arms 14, which project laterally beyond the track of the flukes for a distance approximately equal to the full width of the flukes.
Patent GB-695070-A (GB)
Title: Improvements in or relating to polishes
IPC: C09G1/12
Filed: 1951-06-05
Abstract: An emulsion car polish comprises (a) 0.5 to 8 per cent of a hydrocarbon-soluble polysiloxane having 1 to 3 alkyl, aryl or alkaryl radicals per silicon atom, (b) 0.5 to 10 per cent of a water-insoluble polishing wax, (c) 20 to 60 per cent of a hydrocarbon solvent boiling between 100 DEG  and 300 DEG  C., (d) 0 to 20 per cent of a silica having an average particle size of less than 10 microns in diameter, (e) 1 to 6 per cent of an emulsifying agent, preferably selected from morpholine salts of fatty acids having from 12 to 18 carbon atoms in the acid chain, acetates of n-primary amines having 12 to 18 carbon atoms, monoesters of polyethylene glycols and fatty acids having 12 to 18 carbon atoms in the acid chain, and alkylated aryl polyether alcohols, and (f) 20 to 70 per cent of water, the percentages being by weight.  The polishes may be made by emulsifying the hydrocarbon - siloxane - wax - water mixture and incorporating the silica, if desired, in the emulsion, or preferably by heating a mixture of the hydrocarbon, wax, polysiloxane and a component of the emulsifying agent until homogeneity is obtained, then with rapid agitation adding hot water containing the other component of the emulsifier so that the emulsifying agent is formed in situ.  Polysiloxanes specified contain 1 to 3 radicals per silicon atom, such as methyl, ethyl, propyl, octadecyl, phenyl, tolyl, chlorophenyl, xenyl and benzyl.  Petroleum and coal tar hydrocarbons are the preferred solvents, and the preferred waxes are carnauba, candelilla, paraffin, microcrystalline, ceresin, montan and modified montan waxes, or mixtures thereof.  Emulsifying agents specified are morpholine oleate and stearate, n-dodecyl amine acetate, n-octadecenyl amine acetate, n-octadecadienyl amine acetate and hexaethylene glycol mono oleate.  Silicas specified are diatomaceous earth and tripoli silica.  In examples the polishes contain: carnauba wax, morpholine stearate, petroleum, diatomaceous earth and (1) liquid dimethylpolysiloxane, (2) octadecylsilsesquioxane, (3) butylmethylsiloxane and (4) a copolymer of trimethyl and phenylmethyl-siloxanes; carnaubar wax, dimethylpolysiloxane, petroleum, kerosene, diatomaceous earth and (5) morpholine oleate, (6) n-octadecyl amine acetate or hexaethylene glycol monostearate; (7) the ingredients of (5) except the proportions and type of wax are varied.  Specification 671,806 is referred to.
Patent GB-1392104-A (GB)
Title: Polyurethane composition useful as a fissure sealant
IPC: A61K6/893
Filed: 1972-05-24
Abstract: 1392104 Dental sealants LEE PHARMACEUTICALS 24 May 1972 [24 May 1971] 13351/74 Divided out of 1392103 Heading ASB [Also in Division C3] Fissure sealants for tooth structures comprise a polyurethane prepared by reacting together (a) a hydroxy-terminated butadiene prepolymer having an average M.W. of 400-25,000 and containing 1-3 hydroxyl groups per molecule, (b) an aromatic polyol, e.g. N, N-bis (hydroxypropyl)aniline, in an amount such as to provide 42-60 wt% of the total hydroxyl components, and (c) a polyisocyanate reactant in an amount such as to provide from 1.5 to 2.7 isocyanate groups for each hydroxyl group or active hydrogen site. The composition may contain a filler, e.g. titanium dioxide, and may also contain N-(#-aminoethyl)α-aminopropyltrimethoxysilane to improve adhesion to the tooth. Alternatively, the tooth may be pretreated with a silane coupling agent.
Patent GB-696855-A (GB)
Title: Improvements relating to vertically-sliding counter-balanced windows
Inventor: OLDHAM FRED ALEXANDER MAUGHAM
IPC: E05C17/64
Filed: 1951-06-06
Abstract: 696,855. Sliding windows. HALLAM, SLEIGH & CHESTON, Ltd. June 17, 1952 [June 6, 1951], No. 13380/51. Class 20(iii) A vertically sliding counterbalanced window assembly particularly for an omnibus or railway carriage has a roller or shoe &c., carried by the free end of a leaf or blade spring secured at its other end to a side of the window panel or the framing &c. in which it slides and a curved or inclined track carried by the framing or the window panel, in engagement with which track the roller is maintained by the spring. As shown, a leaf spring 9 is riveted to the outer face of each side member 6 of the glazing frame comprising a half-drop window behind an extension bar set forward of the general plane with a slide groove receiving a guide rib 2 on the fixed framing 3. A roller 15 carried at the end of the outermost leaf 13 engages a channel-sectioned cam track 16 of a parabolic curvature secured to the framing 3, the lifting force exerted by the tracks being constant at all positions of the window. The cam tracks may be a vertically set flat plate, the rollers being grooved to engage over their curved edge. In another form the springs are secured to the fixed framing and the tracks to the sides of the sliding panel. The roller and track may be provided at one side only of the window.
Patent GB-999527-A (GB)
Title: Piston injection syringe
Inventor: RODER HERBERT
IPC: A61M5/315
Filed: 1964-04-01
Abstract: 999,527. Syringes. INJECTA STEINACH VEB. April 1, 1964, No. 13383/64. Heading A5R. A piston syringe comprises a piston 2 of smaller diameter than the internal diameter of the cylinder 1, the piston 2 having a groove 3 in which is placed a non - metallic jointless ring 4 to seal off the front cylinder chamber from the rear cylinder chamber and to act as a brake ring.
Patent GB-1528068-A (GB)
Title: Low frequency power amplifier
IPC: H03F3/30
Filed: 1976-04-02
Abstract: 1528068 Transistor amplifiers SGS-ATES COMPONENTI ELETTRONICI SpA 2 April 1976 [4 April 1975] 13417/76 Heading H3T An A.F. power amplifier comprises an integrated circuit having a single supply terminal 5, at least one inverting input terminal 3, an output terminal 4 and an earth terminal 2, and an external circuit for both gain determination and stabilization against low frequency supply voltage variations, consisting of a voltage divider R'3, R'4 connected between the output terminal 4 and the earth terminal 2, and a capacitative element Cl connected between the intermediate output of the voltage divider and the inverting input terminal 3. It is shown mathematically in the Specification that the gain of the amplifier may be adjusted by varying the ratio R'3/R'4, and that with suitable component values the output V o  is hardly affected by low frequency changes in the supply voltage V s . Only one additional terminal, 3, on the integrated circuit is needed, in contrast to prior art, Fig. 1 (not shown).
Patent GB-640264-A (GB)
Title: Arrangement for simulating a reactive impedance
IPC: H03J7/04
Filed: 1947-05-19
Abstract: 640,264. Automatic frequency control systems. HAZELTINE CORPORATION. May 19 1947, No. 13442. Convention date, June 21, 1946. [Class 38 (iv)] [Also in Group XL (c)] A thermionic reactance comprises a valve having its anode and cathode coupled to a first H.F. source and its grid coupled to a source of oppositely phased potentials through a resistance which together with the capacitances between anode and grid and between grid and cathode forms a phase-shifting network to produce at the grid a voltage of such phase that the anode-cathode impedance of the valve is substantially a pure resistance. As shown, a frequency modulation receiver comprises a local oscillator 20 and a thermionic reactor 19 controlled by a voltage from a frequency error detector 15. The oscillator includes an anode tuned circuit 33, 34 and a feedback coil 40 producing the oppositely phased voltage for application to the grid. The reactor comprises a valve 21 having a grid-anode self-capacitance 32, augmented if necessary, and a grid cathode capacitance augmented by an. adjustable capacitor 30. These capacitances together with resistor 47 form a phase-shift network which is fed through capacitors 45 and 48 with voltages from the oscillator of opposite phase to produce at grid 21 a voltage of such phase that the output impedance is a pure reactance. It is shown that if capacitor 30 is adjusted so that the grid voltage leads the anode current slightly the seal component of the anode impedance is compensated. In an alternative arrangement (Fig. 4, not shown) a pentode reactor valve is used and the adjustable capacitor is connected between the anode and control grid.
Patent GB-545930-A (GB)
Title: Improvements in and relating to hydraulic couplings
IPC: F16D3/80
Filed: 1941-10-20
Abstract: 545,930. Hydraulic couplings. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 20, 1941, No. 13460. Convention date, Oct. 22, 1940. [Class 69 (ii)] A hydraulic coupling for transmitting torque through a liquid such as oil between a driving member such as a turbine and a driven member, such as a governor which controls the turbine, is constructed so as to reduce the effects of sudden speed changes, and also to permit slight misalignment between the driving and driven members. The driven member comprises a cylindrical casing 30 provided with a flange 31 which is screwed to a bracket 16 forming part of a governor. The casing is supported by a bearing having a backing 35 with a lining 36 secured thereto and provided with a supporting member 37 fused to a bracket 38, and also with a retaining ring 39. The casing is provided with an annular recess 34 in which are secured two segments 43, 44, and in the spaces between these segments is fitted a rotatable vane 47 secured in a groove 46 in a cylindrical head 41 attached to the driving shaft 14 which is' geared to the turbine. The vane 47 is arranged between four chambers 49, 50, 51, 52, and clearance spaces 48 allow slight flow of liquid between adjacent chambers. The oil is supplied under pressure by a pipe 53 and passages 54, 55, 56, 58, 59, 60, 61, and a clearance 62 normally connects the four chambers 49 ... 52 to the supply. When the shaft 14 rotates uniformly torque is transmitted to the segments 43, 44 thence to the bracket 16 by means of the oil in the chambers. If however the shaft 14 increases in speed suddenly when rotating clockwise, the vane 47 advances so as to reduce the areas of the chambers 49, 51 by forcing oil out of these chambers. The movement of the vane 47 and head 41, however, connects the chambers 49, 51 by means of ports 63, 65 with the oil supply and the increased flow to the chambers 49, 51 restores the vane to the normal symmetrical position shown in Fig. 3. Should the displacement of the vane 47 from its normal position exceed a given value drainage ports 69, 70 are opened to permit flow of oil from the chambers 50, 52 in rear of the vane and so tend to restore the normal position.
Patent GB-911357-A (GB)
Title: Air control apparatus for garment finishing machines
IPC: D06F71/34
Filed: 1959-04-21
Abstract: 911,357. Drying and finishing garments. WICHITA PRECISION TOOL CO. Inc. April 21, 1959 [May 1, 1958], No. 13478/59. Class 34 (1). Relates to a garment finisher in which steam and air permeate a garment through an inflatable bag, in the manner disclosed in Specification 774,732. Air can be supplied from a blower in a housing 16, Fig. 1, through a throat 18, past a steam coil 20, and base 12 to the bag 10, whilst steam can be supplied to the bag from a chest 14 in the base 12. The bag is deflatable by means of an exhaust blower 21. The invention is characterized by apparatus for controlling the flow of air through the throat, which apparatus comprises a damper plate 22 formed of two sections 26, 28, extending in opposite directions and secured to a shaft 24 traversing the throat and movable to the closed position shown in Fig. 1, by the influence of the air pressure in the throat, means 34, 50 operably coupled with the shaft for rotating the latter to open the damper. Further control means 72 control the air flow when the damper is open. The damper 22 comprises long and short sections 26, 28, with the long section disposed above the shaft 24, and a vane 70 normal to the sections. The shaft 24 is connected with lost-motion to a crank 30, Fig. 1, connected by a link 42 to an arm 40 on a semi-circular treadle 34, pivoted on pintles 38 and 36 (not shown), to the base 12. Another crank 32 securely fixed to the shaft 24 is connected by an extensible member 54, Fig. 3, to a yoke 68 of a core 52 slidable in a solenoid 50 controlled by a switch (not shown), operable by a foot pedal 48, in manner similar to that described in the prior Specification. The member 54 comprises a rod 56 slidable in a tube 58 pivoted by a cross-pin 66 to the yoke, a spring 64 being disposed between one end of the tube and a head 62 on the rod 56. When the solenoid is energized the core 52 is retracted and the plate 22 rotated anti-clockwise to a horizontal position against a stop 88 with the vane 70 disposed vertically. This operation of the shaft does not affect the treadle 34 because of the lost-motion connection in the form of a cross-pin 84 on the shaft 24 and diametrically opposed recesses 86 on the crank 30. When the plate 22 abuts the stop 88, the solenoid 50 can fully retract its core 52 by extending the parts 56, 58 against the action of the spring 64. With the damper 22 fully open air flow is thereafter controllable by a panel 72 on a shaft 74 connected by a crank 76 and flexible cable 78 to a pull knob 80. When the solenoid is de-energized the air flowing through the duct on to the vane 70 causes the damper to move to the closed position assisted by the air pressure, on the larger section 26. During automatic operation, with steam alone, by appropriate manipulation of the pedal 48, air may also be directed into the bag 10 by operating the treadle 34.
Patent GB-985776-A (GB)
Title: Improvements relating to rotary gas blowers or compressors
Inventor: ADAMS THOMAS EDWARD
IPC: F04D29/54
Filed: 1961-04-14
Abstract: 985,776. Boundary layer control. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. April 11, 1962 [April 14, 1961], No. 13531/61. Heading F2R. [Also in Division F1] In an inlet passage of a rotary gas blower or compressor (see Division F1) a by-pass 4 creates at its downstream end, due to a reduction in cross-sectional area thereat, a low pressure. The by-pass thus bleeds off a quantity of gas and dispenses it near the top of blades 3 and thereby controls the boundary layer at the convex surface of the gas passage.
Patent GB-786713-A (GB)
Title: Improvements in fastener units comprising screwed fasteners with captive lock washers
Inventor: POUPITCH OUGLJESA JULES
IPC: F16B39/26
Filed: 1956-05-02
Abstract: 786,713. Locking nuts. ILLINOIS TOOL WORKS .May 2, 1956, No. 13565/56. Class 89(1) A fastener unit comprises a screwed fastener, e.g. a nut 16, Fig. 4, or bolt having a transverse clamping surface 24 Fig. 3, extending outwards from the threaded part of the fastener, and an annular lock washer 18 held adjacent the surface, at least until it engages the workpiece, whereupon relative turning can occur between the washer and fastener. The nut &c. has cam surfaces 32 in the surface 24 extending in the same direction as, but at a slightly greater angle than, the threads, and ending in abutment surfaces 34. The washer is formed with cam portions 42 engaging the surfaces 32 and ending in teeth 44 which dig into the workpiece. The washer is held captive to the. nut by a collar with enlargements 50 engaging a counterbore 26 in the nut. In another arrangement, the washer 56, Fig. 9, is held to the nut 54 by adhesive 74 has cam portions 72 on its inner periphery engaging grooves in the clamping surface 58, and locking teeth 68.