baber/WOPTO huggingface dataset:
Patent GB-438485-A (GB)
Title: Improvements in drives for sound recording and reproducing machines
IPC: G11B19/265
Filed: 1935-03-11
Abstract: 438,485. Variable-speed friction geaxing. KOSMOGRAPH-DIKTIERMASCHINENFABRIK GES., 24, Schandauer Strasse, and RYSICK, A., 194, Kipsdorfer Strasse, both in Dresden, Germany. March 11, 1935, No. 7540. [Class 80 (ii)] [See also Group XXXVIII] Mechanism for driving the turntable of a sound recording or reproducing machine at any one of two or more speeds comprises a number of transmission members which are adapted to transmit the drive from a motor-driven spindle to the rim of the turntable, the said members being brought into operation selectively by movement of a carrier on which they are mounted, and the gearing being so designed as to effect a change in the transmission ratio when the carrier is moved. Means are also provided to interrupt the drive when desired by shifting the carrier. In the construction shown, a motor shaft 1 carries two conical friction wheels 2, 2<1> which are adapted to drive the turntable at normal gramophone speed (about 78 revolutions per minute) or at a much reduced speed (about 33 r.p.m.) through friction transmission wheels interposed between the rim 3 and either of the wheels 2, 21. The transmission wheels are mounted on a slidable plate 6, coupled to a fixed plate 5 by a spring 14, by providing on the plate 6 a bearing pin 15 which supports a large wheel 16 connected with a superposed smaller wheel 17, and above them an elbow lever 18 carrying on a bearing pin 19 a third wheel 20. The lever 18 is connected to a control lever 23. When the parts are in the position shown in Fig. 1, the wheel 20 operatively engages between the wheel 2 and the turntable rim 3. On moving the lever 23 to the position shown in Fig. 2, the lever 18 and the plate 6 are shifted so that the wheel 20 is put out of action and the wheels 16, 17 transmit the drive from the wheel 2<1> to the rim 3. By means of a system of levers 26, 30, 29, the plate 6 may be moved so as to throw all the transmission wheels out of action. Slight regulations of speed may be effected by axial displacement of the conical wheels 2, 2<1> on the motor shaft. Several sets of friction wheels may be arranged on the displaceable carrier, to provide for more than two speeds.
Patent GB-182766-A (GB)
Title: Improvements in fuel injecting devices for internal combustion engines
IPC: F02M67/14
Filed: 1922-03-16
Abstract: 182,766. Krupp Akt.-Ges. Germaniawerft. July 5, 1921, [Convention date]. Addition to 178,093. Cylinders receiving liquid fuel.-In fuel-straying nozzles of the type described in the parent Specification a conduit N for supplying an auxiliary igniting fuel communicates with the spraying-air chamber F. The positions of the chambers G, F may be reversed.
Patent GB-581942-A (GB)
Title: Means of uniting a screw with a driver
IPC: F16B23/00
Filed: 1944-04-25
Abstract: 581,942. Screws and screwdrivers. DEHN, F. B. (Phillips Screw Co.). April 25, 1944, No. 7718. [Class 89 (ii)] [Also in Group XXIII] The conical socket in a screw head 5 has alternate straight tapering ridges and grooves and the end of the screwdriver 1 has corresponding ribs and plates 2, 3, the angle of convergence of the opposite edges of the ribs being slightly more acute than the angle of convergence of the opposite side walls of the grooves to produce a binding effect between the engaging portions. Specification 446,714 is referred to.
Patent GB-622413-A (GB)
Title: Improvements in the manufacture of insulated electric conductors
IPC: H01B3/08
Filed: 1947-03-20
Abstract: 622,413. Cables. BRITISH INSULATED CALLENDER'S CABLES, Ltd., CONNING, J., and KRETSCHMER, J. M., [Representative of KRETSCHMER, H. E.]. March 20, 1947, No. 7727. [Class 36] Electric conductors are insulated with helically-lapped strips of fibrous glass impregnated with silicone grease. The fibrous glass may be impregnated with the silicone grease before being lapped on to the conductor, or a layer of silicone grease may be applied to the conductor prior to the application of the glass lapping, the covering then being consolidated by pressure to cause the grease to impregnate the glass.
Patent GB-1088315-A (GB)
Title: Improvements in or relating to screens
IPC: A47K3/36
Filed: 1965-02-23
Abstract: 1,088,315. Plastic screens. H. L. KINNS. Feb. 16, 1966 [Feb. 23, 1965], No. 7782/65. Heading A4N. A screen made of moulded synthetic plastics material, comprising a unitary panel 1 reinforced by trough-like formations 2, the sides of which extend outwards from the face 4 of the panel, said trough-like formations forming the perimeter of the panel and an ornamental design 5 within the perimeter. The screen is adapted for connection, for example hinged connection 8, 9 with a support for the screen (not shown) and has an extension which may be cut to the shape of the top of the bath and may be housed in a resilient pad. The screen may be transparent or translucent.
Patent GB-884553-A (GB)
Title: Improvements in or relating to concrete ceiling or floor structures
IPC: E04B5/38
Filed: 1958-03-11
Abstract: 884,553. Floors &c. RHEINBAU G.m.b.H. March 11, 1958 [March 11, 1957(2); April 6, 1957], No. 7805/58. Class 20(4) A reinforced concrete ceiling or floor structure includes a number of structural units each comprising a self-supporting girder constituting reinforcement for the concrete or a rafter for the roof respectively and a formwork or roofcovering panel permanently attached to the girder and extending along the length thereof, the panel of each girder abutting or overlapping those of adjacent girders to provide formwork extending as a continuous surface over the whole area of the structure, the girders being entirely surrounded by concrete poured in situ on to the formwork panels. As shown in Figs. 1 and 5, wood, wood-fibre or metal panels 3 are attached to the lower chords 2<SP>1</SP> of self-supporting lattice girders 1, a space 4 being left between the chords and the upper faces of the panels so that the girders may be surrounded by concrete 5; the panels are provided with interengaging tongues and grooves 6, 7. Plates for heat-insulating purposes, or translucent covers for indirect lighting effects are suspended by pins passing between the panels, or suspension means are screwed into wooden ribs of dovetail shape interposed between the panels. Hollow blocks 14 for incorporation in a ceiling or floor are supported between adjacent girders. The lower chords 2<SP>1</SP> of each girder may be located in a continuous common groove or separate grooves 15<SP>1</SP>. Figs. 8, 9, partially or completely filled with concrete 16; girders without chords have the web members 2<SP>11</SP> thereof embedded in concretecontaining recesses. The ceilings or floors may have radiation protecting means in the form of foil between the panels and the concrete, and protective plates above the girders, or radio-active absorbing powder or grains are mixed in the concrete 5. In the case of a roof, the panels 2, 3, Fig. 13, may be of corrugated asbestos-cement, the lower chords of the girders being embedded in concrete 16, or flat, overlapping panels 27, Fig. 15, are used the chords 2<SP>1</SP> of the girders being embedded in concrete ribs 28.
Patent GB-1400143-A (GB)
Title: Warp knitting machines
IPC: D04B27/08
Filed: 1974-02-21
Abstract: 1400143 Knitting-machines KARL MAYER TEXTILMASCHINENFABRIK GmbH 21 Feb 1974 [23 March 1973] 7921/74 Heading D1C [Also in Division F2] In a warp machine the sinkers 1 are driven by a push rod 8, two-arm lever 4, 6 and a link 7 adjustably pivotally connected to the lever. In the embodiment shown, the pivot point 10 is movable along slot 9, having both radial and circumferential components relative to the lever axis 5. Thereby the catch and throw of the sinker can be adjusted simultaneously, but the same relative disposition of needle and sinker at knock-over retained. In a second embodiment the link 8 is pivoted to a lever (17) pivoted to the two-arm lever and having a free end movable in a slot (19) therein.
Patent GB-653653-A (GB)
Title: Improvements in and relating to the production of tetrahydrofurfuryl alcohol
IPC: C07D307/12
Filed: 1948-03-17
Abstract: Tetrahydrofurfuryl alcohol is substantially freed from furfural and/or furfuryl alcohol by heating it with the bisulphate of an alkali metal, ammonia, or an alkaline earth metal or a mixture of such bisulphates, neutralizing the reaction mixture, and distilling off the tetrahydrofurfuryl alcohol; the bisulphate is used in an amount equal to or less than the amount that will dissolve in the tetrahydrofurfuryl alcohol at room temperature. The bisulphate may be added as a solid, preferably just sufficient to saturate the solution, e.g. 0.5 per cent, or as an aqueous solution, or it may be formed in situ from sodium sulphate and sulphuric acid.  In an example, tetrahydrofurfuryl alcohol containing furfural, furfuryl alcohol, and water is purified by refluxing with varying amounts of sodium bisulphate; 15 minutes is the optimum time.  Specifications 547,334 and 608,565 are referred to.
Patent GB-540897-A (GB)
Title: Improvements in or relating to radio receivers provided with two output circuits from the same output valve
IPC: H04M9/00
Filed: 1940-05-03
Abstract: 540,897. Receiving circuits. STANDARD TELEPHONES & CABLES, Ltd., EARP, C. W., and HOLLAND, J. D. May 3, 1940, No. 7974. [Class 40 (iv)] [Also in Group XL] In an arrangement particularly for use on aircraft for supplying signals from two radio receivers W1, W2 to two listeners A, B, each output valve V1, V2 has a pair of output transformers T1, T2 ; T5, T6 whose primary windings are connected in series in the anode circuit and whose secondary windings are connected to the respective headphones Ha, Hb. The receiver W1 may be for communication and W2 for direction finding, and in order that the listeners may when desired only hear the signals with which they are directly concerned the connections from the transformers T1, T5 include potentiometers R1, R2 for reducing the level of the signals. In addition the output from the receivers W1, W2 is adjustable by means of potentiometers R3, R4. In order to prevent leakage of the undesired signals to either listener by transmission through both T1, T2 or T5, T6, high impedance valves for example pentodes are employed. To allow telephone communication between the listeners, their microphones Ma, Mb are connected to transformers T3, T4 having their secondaries in the cathode circuit of the valves V1, V2. One microphone Ma is also connected through a transformer T7 to a radio transmitter.
Patent GB-1364086-A (GB)
Title: Tetrahydropyrimidine-2 4-dione compounds
IPC: C07D307/22
Filed: 1971-09-20
Abstract: 1364086 Tetrahydropyrimidine - 24 - dione compounds ROUSSEL UCLAF 20 Sept 1971 7984/74 Divided out of 1364085 Heading C2C Novel compounds of general Formula I wherein R<SP>1</SP> represents an alkyl radical, R<SP>2</SP> represents H, chlorine or alkyl, or bromine provided R<SP>1</SP> is not methyl, and n is 3 or 4, may be prepared by cyclizing under basic conditions an alkyl - # - (N<SP>1</SP> - 2 - tetrahydroheterocycloureido)-acrylate of general Formula II wherein R<SP>3</SP> represents an alkyl radical; the halo-compounds being prepared by halogenation of the non-halo-compounds, e.g. by reaction with sulphuryl chloride, bromine or N-bromosuccinimide. The compounds II may be prepared either by reacting a compound III under basic conditions with tetrahydropyranyl isocyanate or tetrahydrofuranyl isocyanate, or by reacting a compound V with dihydropyran or dihydrofuran in the presence of a dehydrating agent. 2 - Tetrahydrofuranyl isocyanate is prepared by reacting 2-chloro-tetrahydrofuran with sodium cyanate in an anhydrous solvent. The compounds V may be prepared by reaction of urea with a compound IV of formula R<SP>1</SP>.CO.CHR<SP>2</SP>.CO.OR<SP>3</SP> in the presence of an acidic catalyst. The novel compounds I exhibit herbicidal properties.
Patent GB-692065-A (GB)
Title: Electroplated moulding compounds
IPC: B32B15/08
Filed: 1951-04-06
Abstract: A method of coating articles with metal comprises forming an article of synthetic resin having a finely-divided conducting material, for example, powdered graphite or carbon black, distributed therein, abrading the surface of the article and electroplating a metal directly on to the abraded surface.  The plastic material may be a thermosetting resin for example a urea, melamine or polyester resin, or a thermoplastic resin, for example a styrene resin, and is preferably a phenolic resin. There may also be included in the plastic material a fibrous material, for example, cotton flock, wood flour, nylon or asbestos.  The surface of the material may be abraded by sand-blasting, by dipping in hot concentrated sulphuric acid or in a hot aqueous solution of sodium hydroxide, or by treatment by organic solvents, for example, dioxane or hot phenol for phenolic moulding compounds, benzene for styrene-based compounds and acetone for cellulose-base synthetic resins.
Patent GB-229133-A (GB)
Title: Improvements in and relating to electric immersion heaters
IPC: H05B3/80
Filed: 1924-04-01
Abstract: 229,133. Naujoks, R. April 1, 1924. Lids and covers.-A stepped or corrugated lid 29 has a central hole engaged by means of a bayonet-joint by a member 20 provided with a handle 23 and adapted to grip an electricimmersion heater 1.
Patent GB-624590-A (GB)
Title: Improvements in metal cutting and working machines
IPC: B23K11/30
Filed: 1947-03-26
Abstract: 624,590. Treating welding electrodes. WILLIAMS, E., and POWLEY, R. A. March 26, 1947, No. 8272. [Classes 83 (ii) and 83 (iii)] Portable turning-apparatus; cutters.-Apparatus for end-facing and chamfering in situ a cylindrical, spot-welding electrode tip A, comprises a body 27 rotated coaxially with the electrode A and carrying a plurality of trapezoidal cutters 25 and an end-face locating blade 15 acting as a facing cutter. The body 27 is hand-ratchet or power driven and is supported by arms 28 detachably secured to the electrode holders. The cutters 25, Fig. 3, not shown, are mounted with one face radial, and are radially adjusted by screw-rings 24. The locating blade 15 may have two cutting faces and co-operate with a further set of cutters to machine two co-operating electrodes simultaneously.
Patent GB-1037483-A (GB)
Title: Heat treating apparatus
IPC: C21D1/63
Filed: 1963-03-01
Abstract: <PICT:1037483/C6-C7/1> A quenching fixture for supporting a heated elongate workpiece during quenching thereof comprises upper and lower dies 270,272 which define a workpiece receiving nest.  The lower die is carried by the framework 84 and the upper die by the upper member 114 which is in turn connected to the upper framework 110 by means of holding links 160.  The upper ends of the links 160 are pivotally connected to the upper framework 110 and may be swung relative thereto by means of a power cylinder 166 (Fig. 6, not shown) thereby raising or lowering the upper member 114 enabling insertion of a workpiece between the dies.  The framework 84 and the upper framework 110 are connected by the vertical extensio 80 of the lower framework 84, the edge of the upper framework 110 lying between stop members 100, 102 (Fig. 3, not shown), and also by a hook-latch assembly 120 comprising a plurality of hooks 122 pivoted about axes 124 (Fig. 5, not shown) the hook ends 130 connecting with pins 132 affixed to the lower framework 84.  The hooks are operated by a mechanism comprising an actuating bar 144 and power cylinder 146, and may be raised to allow insertion of a workpiece transversely.  After insertion of the workpiece the hooks engage the pins 132 and the power cylinder 146 is actuated to force the upper member 114, and hence the upper die 270, downwards to firmly engage the workpiece, tension being produced in the hooks 122.  The workpiece is then lowered into the quenching bath 29.  The means for clamping the workpiece may be split transversely into three parts (Fig. 2, not shown) so that as the workpiece contracts on cooling, the clamping means may also contract.  The quenching fixture may form part of a structure comprising a conveyer E which supplies workpieces to the apparatus and removes them therefrom a heat treating furnace A, furnace carriages 13 upon which the workpieces are conveyed into, and out from, the furnace A, and a transfer carriage F which serves to transfer workpieces from the conveyer E to the carriages B, from said carriages B to the quenching fixture D and from there back to the conveyer E for removal.
Patent GB-598368-A (GB)
Title: Device for controlling by means of a single lever two or more distinct and independent actions
IPC: B64C13/24
Filed: 1945-04-04
Abstract: 598,368. Linkwork. GROUPEMENT FRANCAIS POUR LE DEVELOPPEMENT DES RECHERCHES AERONAUTIQUES. April 4, 1945. No. 8363. Convention date, Nov. 18, 1943. [Class 80(iii)] [Also in Groups XIX, XXXII and XXXIII] A linkwork mechanism for enabling two separate and distinct mechanisms to be operated from a single member comprises an articulated quadrilateral 1, 3, 4, 5, one of the apices of which is pivotally mounted upon a fixed support 6, the two sides adjacent the fixed pivot being connected to the respective two mechanisms by rods 10 and 12 and one of the other two sides being rigid with the single operating member 9. Thus vertical movement of member 9 operates rod 12 only whilst transverse movement operates rod 10. In application to the controls of an aircraft, Fig. 4, backward or forward movement of a handle 9 operates the altitude control 12, connected at the pivoted joint 2, whilst transverse movement of the handle 9 operates cables 10, 101 controlling the ailerons. By providing the control member 9 as a handwheel which is adapted for rotation in a member forming one side of the linkage a further operation may be performed by the rotation of such handwheel. With such an arrangement the backward and forward and transverse movements are adapted to actuate the altitude and rudder controls respectively, and the rotation of the handwheel, the ailerons. By connecting the pivots of the parallelogram 1, 3, 4, 5 with a similar linkage spaced apart therefrom a parallelepipedon linkage is obtained which functions in a similar manner but in which the operating member can be disposed in a different plane to the control members. The Specification as open to inspection under Sect. 91 comprises also the application of the linkage to correlating and recording on a diagram the indications of two separate apparatus by means of a stylus, or a mirror reflecting a luminous spot, on a sheet of paper or a photographic plate. A simple articulated quadrilateral linkage is also described for operating a coupling mechanism between two vehicles which is suspended from a fixed pivot and two of the links have a hook extension for carrying the coupling member and an operating handle extension to one side of the vehicle respectively. In a further simplified arrangement a single member carrying the hook extension and the operating handle is pivoted on a single pivoted arm. This subject-matter does not appear in the Specification as accepted.
Patent GB-592958-A (GB)
Title: Improvements in spindle machines for moulding dough
IPC: A21C7/02
Filed: 1945-04-06
Abstract: 592,958. Moulding dough. BEATTIE, Ltd., W., BRANDER, D., and HAMILL, H. April 6, 1945, No. 8521. [Class 87 (ii)] In a machine of the type in which a plurality of rotary spindles 12 travel in a circuit round a rotating drum 13, the spindles are driven by a chain and sprocket wheels. Pieces of dough, previously divided-out, are fed in at A over rollers 14 and are carried round by the spindles to the point D, each pair of spindles co-operating with the drum to roll-up and mould a piece of dough. The spindles are in pairs end-to-end, and are journalled in rotatable carriers 29 which have annular faces defining, with the drum, the moulding channel E, and through which the spindles project when operative. On the spindles are sprocket wheels 32 driven to rotate about their own axes by a chain 34. Another chain 38 passes round sprockets 33 on all the spindles to keep the idling spindles at the bottom of the machine rotating in unison with the others. A tautening wheel 39 is provided, and there is a spring-loaded jockey wheel bearing on the chain 34. Each spindle is projected into operative engagement with the other spindle of the pair, as they approach the point A, and withdrawn at the point D, by a lever 41 having a roller 45 engaged with a stationary cam track 44. The spindle bearings 31 are detachably mounted on the carriers. The carriers and drum are also driven by chain drives from the electric motor 19. From the point D the dough piece is carried to the delivery end between the conveyer bands 15, 16, the upper, 16, being driven in opposition to and slower than the lower 15.
Patent GB-393390-A (GB)
Title: Heat exchange apparatus, particularly applicable to the radiators and oil coolers of automobile and aircraft engines
IPC: F28D1/03
Filed: 1932-03-23
Abstract: 393,390. Plate heat-exchangers. COLLINS, T. B., 42, Queen's Square, Strathbungo, Glasgow. March 23, 1932, No. 8584. [Class 64 (iii).] Heat-exchange apparatus, e.g. radiators or oil coolers for automobiles or aircraft, are formed of longitudinally corrugated tubular elements a, the corrugations of adjacent elements being inclined to one another and the ends of the elements expanded to facilitate assembly. The perimeter of the expanded ends is made the same as that at all other sections of the elements which are formed of flattened tubes or of one or two plates bent to the required form and welded at their edges. Spacer strips g are incorporated in the elements during manufacture.
Patent GB-999939-A (GB)
Title: Multiple opening metal bending die and adjusting means therefor
IPC: B21D5/02
Filed: 1964-03-02
Abstract: 999,939. Bending. PACIFIC INDUSTRIAL MANUFACTURING CO. March 2, 1964 [March 14, 1963], No. 8670/64. Heading B3E. A press brake includes a multiple opening die having a plurality of longitudinal, metal bending slot openings therein, a holder for the die, means for elevating the die off its holder and means for adjustably rotating said die while in its elevated position. A die 3 which is formed with a plurality of longitudinal grooves 11, 13, 15, 17 and rests on a holder 5 on the bed of a press brake having an upper press ram 21 with a knife die 23 co-operating with the selected one of the grooves 11, 13, 15, 17. To adjust the die 3 about its axis to present another groove to the knife die 20, a lever 65, bearing against a head 51 on a stud secured to the die, is rocked to pull the die 3 longitudinally. Pivot plates 33, 35 supporting studs in the ends of the die 3 are rocked by this movement to lift the die from its holder 5. The handle 65 is then rocked in a direction normal to the longitudinal axis of the die 3 so that teeth thereon engaging radial teeth 69 on the head 51 will rotate the die 3 about its axis. When the desired adjustment has been made the die 3 is allowed to drop back on to its holder 5. The handle 65 may be moved by power means to lift the die 3 or power may be applied directly to the die.