baber/WOPTO huggingface dataset:
Patent GB-1216247-A (GB)
Title: Process for the manufacture of synthetic resins containing n-acylamino-acid residues
IPC: C08G16/04
Filed: 1968-03-18
Abstract: 1,216,247. Synthetic resins containing N- acylamino acid residues. FARBWERKE HOECHST A.G. 18 March, 1968 [17 March. 1967], No. 12910/68. Heading C3R. Synthetic resins containing N-acylamino-acid residues are obtained by reacting N-acylamino acid-(thiophen-2)-methyl esters with condensation products of phenol ethers and formaldehyde In Examples resins are obtained by reacting tert. - butyloxy - carbonyl - glycine - (thiophen-2)-methyl ester, tert.-butyloxy-L-leucine- [thiophen (2)-methyl]-ester, nitrophenyl-sulphenyl - L - alanine - [thiophen (2) - methyl] - ester and nitrophenyl - sulphenyl - L-leucine - [thiophen (2) - methyl] - ester with condensation products obtained from formaldehyde and resorcinol-dimethyl ether.
Patent GB-252387-A (GB)
Title: Improvements in or relating to scanning devices for television systems
IPC: H04N3/08
Filed: 1926-05-20
Abstract: 252,387. Metropolitan-Vickers Electrical Co., Ltd., (Assigness of Whitten, W. H.). May 25, 1925, [Convention date]. Television apparatus. -The exploring movement of a mirror in a television system is effected by the expansion and contraction of a piezo-electric crystal. Two crystals may be employed, one expanding when the other contracts. The figure shows a transmitting arrangement. The crystals 4, 5 are each mounted at one end on a base 6 on the wall of a receptacle 8, and their other ends bear against the back of a mirror, comprising a deposit 3 of silver on a glass support 2, one at each side of a controlling spring 9. Metal plates 10, 11 and 12, 13 arranged on either side of the crystals 4, 5 respectively are connected as shown to an a-c generator 15 producing e.g. 1000 cycles per sec. A fixed mirror comprising a surface 18 of silver on a glass support 16 is mounted in the receptacle 8 behind the oscillating mirror 3, and the receptacle is filled with a mixture of alcohol and glycerine having a refractive index equal to that of the glass supports 2, 16. The image 22 to be transmitted is focussed by a lens 21 on to the mirror 18 and the beam, after repeated reflection as shown from the two mirrors, is incident on a third mirror 24 mounted on an armature 27 oscillated about an axis 29 at right angles to the axis of the mirror 3 by a polarized electromagnet 26 to which current is supplied from an a-c generator 31 at e.g. 16 cycles per sec. The beam reflected from the miror 24 traverses a photoelectric cell 30 and light from successive elements of the image is thus incident on the cell. The image is reproduced at the receiving station by mirrors oscillating synchronously with the mirrors 3 and 24.
Patent GB-594607-A (GB)
Title: Electric wave-signal antenna
IPC: H01Q9/30
Filed: 1945-05-23
Abstract: 594,607. Aerials; coupling arrangements. HAZELTINE CORPORATION. May 23, 1945, No. 12949. Convention date, .Tune 23, 1944. [Class 40 (v)] A broad band aerial comprises an antenna, conductor mounted so as to extend away from a conducting surface with its lower end separated by a distance much less than a quarter wavelength from the surface and coupled to translating apparatus by a lead-in conductor and supported above the surface by a conductor which extends laterallyfrom the lowers end of the antenna conductor and has a length considerably greater than the separation from the surface. In Fig. 1, the lower end of an antenna conductor 10 is supported a short distance from a conducting surface by a lateral support conductor 14, each half of which has an approximate electrical length of an odd number of quarter wavelengths. The lead-in transmission line 13 is coupled capacitively to the antenna conductor, the inner conductor terminating in a member 17 enclosed within a block of insulating material over which is fitted a conical cap 21 which is connected to the lower end of the antenna conductor by a fiexible strap 22. The length of the antenna conductor 10 is such that it resonates within the operating band to produce maximum current at its lower end, and the cross-section of the support 14 is made small enough to provide at least one-tenth of the total antenna inductance. Fig. 3 shows the equivalent circuit of the antenna svstem. The transmission line represented by R13 is connected through the inductance L18 (due to the protruding portion 18 of the inner cable conductor), and the condenser C17-22 (formed by the members 17 and 20), to the base of the antenna. The inductance of both halves of the support conductor 14 is represented by L<1>14 and its distributed capacity by C<1>14. The antenna conductor comprises inductance L10 and capacity C10 and radiation resistance R10. The circuit thus comprises three resonant circuits in which the constants are so selected that the antenna impedance is substantially constant and equal to the characteristic impedance of the transmission line 13. The length of the support conductor 14 may be reduced by providing a lumped capacitor member 28, Fig. 6, which maintains the effective electrical length at its desired value. Fig. 7 illustrates a shunt-fed aerial wherein the electrical length from the free end of the conductor 10 and from the free end of the member 14<11> are both an odd number of quarter wavelengths long. Specification 462,872 is referred to.
Patent GB-253094-A (GB)
Title: Manufacture of condensation products from urea or a derivative thereof and formaldehyde
IPC: C08G12/00
Filed: 1926-05-21
Abstract: 253,094. Soc. of Chemical Industry in Basle. June 5, 1925, [Convention date]. Urea -formaldehyde condensation products. - Clear condensation products are made from urea or a derivative thereof and a minimum proportion of formaldehyde, e.g. a molecular proportion of one of urea to two of formaldehyde, by conducting or commencing the condensation in the presence of active carbon. A diluent such as an alcohol, ketone, ether, ester or mixtures thereof, which serves to retard the reaction, may also be present. The condensation passes through several well-defined stages, and the carbon may be separated just after the condensation commences or at any stage thereof. By shaking urea and formaldehyde with animal charcoal at ordinary temperature, dimethylol-urea is produced. On heating the product for some hours under reflux conditions and evaporating in vacuo, a clear syrup is obtained which is readily soluble in water and alcohol. Further heating gives a viscous product soluble in water but insoluble in alcohol. Bv continuing the heating, there is produced a very viscous mass which is soluble in neither water nor alcohol. Prolonged heating of the viscous syrup gives first gummy masses and then clear, hard solids. The retarding agent may be added at any stage of the condensation, but is especially useful when an acid or acid-yielding substance is employed as condensing agent. The products are useful as lacquers, varnishes, and plastic masses and may be incorporated with dyestuffs, filling materials agents imparting elasticity. &c. Examples covering the various phases of the condensation are given, together with one in which urea and formaldehyde are condensed in the presence first of animal charcoal and then of phosphoric acid, with or without the presence of ethyl alcohol as a retarding agent.
Patent GB-159784-A (GB)
Title: Improvements in spring wheels
IPC: B60B9/06
Filed: 1920-05-11
Abstract: 159,784. Bingham, W. J. May 11, 1920. Spring wheels with continuous outer rigid ring and helical springs.-The outer rigid ring is formed with chambers a in which lie radial springs b bearing on sliding plates e which support the outer ends of the spokes, the springs being packed by wooden blocks c. Between the ends of the spokes and the walls of the chambers lie circumferential springs d. The sides of the chambers may be closed by detachable plates, and the springs may be arranged diagonally in pairs of different lengths.
Patent GB-702346-A (GB)
Title: Improvements in or relating to lifting jacks
Inventor: SMITH HARRY
IPC: B66F3/08
Filed: 1951-06-01
Abstract: 702,346. Screw jacks. SMITH'S JACKING SYSTEMS, Ltd. May 20, 1952 [June 1, 1951], No. 13102/51. Class 78 (3) In a screw jack, the upper end of the screw 17 is supported by a ball race 23 at the top of a pair of struts 11, 12, whilst its lower end, which is unsupported, passes through a hole 15a in a plate 15 rigidly secured to the struts. The ball race 23 is located between an abutment member 20 on the screw and a plate 16 which secures together the tops of the struts. A pin 18 passing diametrically through the lower end of the screw prevents the screw from moving upwardly relative to the plates 15, 16. A nut 27 operatively engaged by the screw has pivoted thereto a lifting member 28 which is adapted to engage a socket in the vehicle to be lifted. Specification 625,500 is referred to.
Patent GB-377322-A (GB)
Title: Improvements in carburetters for internal combustion engines
IPC: F02M1/16
Filed: 1931-05-04
Abstract: 377,322. Spray carburetters. MORRIS, E. E., MORRIS, D. R., and MORRIS, T. E., Manorfields, Leesons, Chislehurst, Kent. May 4, 1931, No. 13107. [Class 7 (iii).] To facilitate starting and warming up of the engine, a supplementary nozzle i is adapted to be fed from a chamber g which can be placed momentarily in communication with the float chamber a to receive an ample supply of fuel therefrom. Communication between the chambers g, a is effected by a valve f adapted to be opened by a rod j loaded by a spring k. The main nozzle is shown at e. The float chamber and the area of the inlet valve b thereto are relatively large. Specification 374,026 is referred to.
Patent GB-1498863-A (GB)
Title: Surfactant mixtures
IPC: C09K23/42
Filed: 1975-03-27
Abstract: 1498863 Surfactant composition AMERICAN CYANAMID CO 27 March 1975 [2 April 1974] 13117/75 Heading C3P A surfactant composition consists of a mixture of the soluble salts of sulphosuccinate half esters of (A) an alkyl-polyoxyethylene alcohol of formula where R is a C 6 -C 20  alkyl group, n = 2-50; (B) a polyethoxy-alkyl phenol of formula where R is a C 6 -C 12  alkyl group, n = 2-50 and (C) are alcohol selected from isodecanol, isooctanol, 2-ethylhexanol, tridecanol and C 8 -C 12  telomer ethylene alcohols; the components are present in the following weight percentages: A 0-25%; B 0-33%; C 57-87%, with the provisos that A+B+C=100% and when A>21%, B<8%. The surfactant mixture is preferably used in the preparation of latices of acrylate and methacrylate polymers and copolymers. In the examples A is B is and C is isodecanol.
Patent GB-748815-A (GB)
Title: A device for connecting and locking the lid with the base of a typewriter case
IPC: B41J29/13
Filed: 1954-05-05
Abstract: 748,815. Hinges. OLYMPIA WERKE AKT.-GES., [formerly OLYMPIA WERKE WEST GES.]. May 5, 1954 [May 18, 1953], No. 13123/54. Class 65 (2). A typewriter case consists of a base and a lid which are connected together by means of hinges each consisting of two members 2, 5 adapted to be separated by an axial displacement of one hinge member with respect to the other hinge member and characterized in that the hinge member 5 connected to the lid of the case forms at one edge a sleeve 5a wherein a pintle 6 is fastened so that it projects from the sleeve, that the hinge member 2 connected to the base of the case is provided with a pintle roll 2b adapted to receive the pintle and with a guide 2a coaxially disposed to the pintle roll and adapted to receive the sleeve 5a, that a twoarmed latch lever 8 is pivotally mounted on the hinge member 5 so that the latch lever comes to lie between the faces of the hinge members which are parallel to one another when the case is closed and that one arm 8b of the latch lever has a tooth 8c adapted to engage the free end of the pintle roll and is biased into the engaged position by a spring (not shown). The end of the lever opposite to that which carries the tooth forms a handle 8a and the spring is positioned between the handle and the side of the case. Downward movement of the lever in the disengaged position is limited by a projection 8d coming into contact with a sleeve 5a.
Patent GB-816832-A (GB)
Title: Improvements in or relating to a piston and cylinder assembly
Inventor: FLICK FRANCIS S
IPC: F16J15/3268
Filed: 1956-04-30
Abstract: 816,832. Stuffing-box substitutes; pistons, packing. FLICK-REEDY CORPORATION. April 30, 1956, No. 13164/56. Classes 122 (1) and 122 (5). Sealing means for a piston, Fig. 2, or cylinder gland, Fig. 3, comprises a packing of L crosssection in the form of a cylindrical lip for sliding sealing engagement with the cylinder 1 or pistonrod 8, as the case may be, and an annular radial flange which is clamped to the piston or in the gland, an annular space provided in the piston or gland at the periphery of the said flange for collecting fluid tending to accumulate behind the flange, and a relief passage connecting such space with the interior of the cylinder for the purpose of equalizing fluid pressure on both the lip and flange. The piston assembly comprises a piston disc 5, Fig. 2, and followers 6, 7, directly mounted on the piston-rod 4, the flanges 19 of two packing members 20, 21 of cup shape being clamped within recesses 17, 13 formed on the inner faces of the followers. An annular recess 26 is provided in each follower 6, 7 adjacent the inner periphery of the flange 19 and this recess communicates with a relief passage 25. A sealing-ring 24 located in a groove 23 in the rod prevents leakage of pressure through the bore of the disc 5. The piston is assembled by screwing the follower 6 on to the piston-rod, thus clamping the disc 5, the seals 20, 21, and the follower 7 against a distance-piece 10, the forward end of which bears on a shoulder on the piston-rod. The forward end 4, Fig. 3, of the piston-rod is sealed by a gland in the cylinder head 3 comprising a packing lip 30 in contact with the piston-rod 4 and having a clamped flange 32 and a pressure-equalizing passage 46 connecting the pressure fluid inlet 47 with a space 45 formed by bevelling the outer edge of the flange 32. The flange is maintained in contact with the rod by a bevelled ring 42 which is pressed axially by a wavy spring 43. Grit is kept from the working surfaces by wipers 38, 39.
Patent GB-729000-A (GB)
Title: Improvements in snap-action electrical switches
IPC: H01H23/20
Filed: 1953-05-12
Abstract: 729,000. Snap-action switches. GENERAL MOTORS CORPORATION. May 12, 1953 [May 27, 1952], No. 13168/53. Class 38 (5). A switch comprises a casing 10 slidably receiving a carrier 40 having notches 41 accommodating tongues 42 of a bridging contact 39 biased by springs 46. Arms 47 of the carrier 40 co-operate with abutments 55 formed in both sides of an actuator 51 pivoted at 28 between casing side walls 24, 25. In movement from the "off" position, Fig. 3, a nose 54 on the actuator 51 further stresses a wire spring 50 and the consequent overcentre action assists the abutments 55 to move the carrier 40 to the "on" position in which contacts 33 are bridged by the contact 39. In a modification, Fig. 8, there are three fixed contacts 70, 72, 73, a pair of contacts 70, 72 or 72, 73 being bridged by the contact 39 in each of the extreme positions of the actuator 51. The switch is retained in the central "off" position by depressions 75 in the casing 10 and in the " on positions by depressions 70b, 72b, 73b in the fixed contacts. Alternatively, the depressions may be omitted (Fig. 6, not shown).
Patent GB-132783-A (GB)
IPC: B60T11/06
Abstract: 132,783. Taverne, J. R. Sept. 17, 1918, [Convention date]. Brake mechanism.- Relates to flexible-transmission brakes of the kind described in Specifications 21380*/00 and 19223/01. The single flexibletransmission wire f<1>, opercating both the front and rear brakes of a bicycle &c., is looped around a grooved pulley c mounted between the side cheeks a<1> of the control lever a, which is pivoted at d to a collar e secured to the handle-bar b. The pull of the lever a is automatically applied equally to both brakes, owing to the rotation of the pulley c. The device may be applied to the two back brakes of a motor-vehicle, or, as shown in Fig. 7, to both front and rear brakes. The grooved pulley c is in this case carried by a forked lever keyed to the same shaft as the brake lever a. The transmission wire f<1> is connected at each end to pulleys c<1>, which similarly control wires f<3> operating both pairs of brakes. Reference has been directed by the Comptroller to Specifications 21380*/01 and 19223/01.
Patent GB-295743-A (GB)
Title: Improvements in or relating to galvanic batteries
IPC: H01M6/04
Filed: 1927-05-18
Abstract: 295,743. Codd, A. M. May 18, 1927. Electrolytes; electrodes; amalgamating; connections.-In a cell employing a zinc electrode b in an electrolyte of ferric chloride, the zinc electrode is situated at the bottom of the cell so that it is protected by the waste solution from action during open circuit. Connection is made to the electrode b by an iron wire c protected by a rubber sheath d. The second electrode consists of two carbon rods f connected together. The zinc electrode is kept amalgamated by a layer of mercury g or by mercury salts added to the electrolyte. Alternatively the zinc may be recessed or formed with a ring to receive mercury. The zinc may be further protected by a layer h of inert porous material such as sand, kieselguhr, pumice or glass, or a layer of felt, flannel or other fabric may be used. The conductivity of the electrolyte may be increased by the addition of the chlorides of sodium, potassium or ammonium. According to the Provisional Specification the electrolyte may consist of potassium bichromate or other solution.
Patent GB-133832-A (GB)
IPC: A43B13/00
Abstract: 133,832. Grosjean, J. E. Dec. 9, 1918. Soles.-A layer of laminated canvas 1, Figs. 1 and 2, is provided with a separate tread 2 of textile material impregnated with rubber and so arranged that the thread portions are at rightangles to the tread. The shank and heel portions may consist of layers of canvas 7 overlaying a sheet 6 of rubber. A border 9 of vulcanizable material is supported on part of the canvas base 8 The textile materials may consist of new or waste material and may be waterproofed. The whole is cemented together and vulcanized under heavy pressure.
Patent GB-134844-A (GB)
IPC: F01N13/00
Abstract: 134,844. Parolini, C., and Perron, G. July 24, 1918, [Convention date]. Exhaust-silencers.-A silencer comprises one or more expansion chambers 8, 9 with double walls of thin metal, between which a vacuum is produced. The exhaust enters each chamber by a perforated tube 3 closed at the end B.
Patent GB-1533662-A (GB)
Title: Refractory granular embedding composition for electric heating coils
IPC: H01B3/02
Filed: 1976-04-02
Abstract: 1533662 Refractory composition FRITZ EICHENAUER 2 April 1976 [3 April 1975] 13550/76 Heading C1A A refractory granular electrically insulative composition suitable for use as an embedding composition for electric heating coils, which composition comprises fused and granulated high melting point ceramic material having polyalkyl siloxane or polyarylsiloxane admixed therewith in a proportion of 0À5-5À0% by wt., expressed as added weight, based on the total weight of the ceramic material.
Patent GB-1161656-A (GB)
Title: Simplified Stacked Semiconductor Device
IPC: H01L23/498
Filed: 1968-03-21
Abstract: 1,161,656. Transistors. ITT INDUSTRIES Inc. 21 March, 1968 [24 March, 1967], No. 13707/68. Heading H1K. A silicon transistor die 7 is provided with a collector electrode 17 on one face and with interdigitated aluminium base and emitter electrodes (not shown) on its opposite face. Rectilinear ridges 8, 9 are formed on the base and emitter electrodes, respectively, and consist of gold, of lead-tin solder, or of gold-germanium solder. The die 7 fits into a recess in the upper molybdenum terminal block 2 and has its electrode ridges 8, 9 seated in the flared ends of metallized slots 6, 5 cut through a beryllia spacer 4. The spacer has a metallized rim 13 by which it may be bonded to the molybdenum terminal. At its lower side the spacer is provided with two large metallized areas 11, 12; that connected to the emitter electrode 9 of the transistor contacts the lower molybdenum terminal block 1 which is slotted so that the base connection 10 may be attached to the other large metallized area 11. The lower terminal block is attached to the massive base of the header 14. In manufacture the parts are stacked together-they are so shaped that they take up the desired position on stacking-and are furnace soldered under the pressure of a weight applied to the top of the assembly. The solder may be applied by coating the surfaces before assembly or by including solder pre-forms.
Patent GB-980517-A (GB)
Title: Distillate fuels inhibited against bacterial growth
Inventor: RYDER JAMES WILEY
IPC: C10L1/14
Filed: 1962-04-10
Abstract: The growth of bacteria at the interface between water and a petroleum distillate fuel boiling in the range 75-750 DEG  F. is prevented by providing in the fuel (A) 1-50 parts per million based on the weight of fuel of an N-thiotrichloromethyl amide or imide having one of the formulae <FORM:0980517/C4-C5/1> where X is an acyl group, e.g. <FORM:0980517/C4-C5/2> R1 is hydrogen, an aryl radical or C2- 12 alkyl radical, and R is an organic radical, and providing in the water (B) 50-1,000 parts per million based on the weight of the water of a nitro-alcohol having the formula <FORM:0980517/C4-C5/3> where R and R1 are hydrogen, aryl, alkyl or hydroxymethyl radicals.  Typical of many specified (A) compounds are N-thiotrichloromethyl derivatives of tetrahydrophthalimide, N - butyl benzenesulphonamide, 2,4 - dioxothiazolidine, 5,5 - dimethyl - oxazolidine - 2,4-dione, 5,5 - dimethyl - hydantoin, and o-sulpho-benzimide. Typical (B) compounds are 2 - nitro - propanol - 1, and 2 - nitro - 2 - hydroxymethyl-1,3-propane diol.  The additives may initially be added either both to the fuel phase, both to the water phase, or one to each phase.  Fuels mentioned include gasoline, kerosine, aviation turbo-jet fuel, and diesel fuel, to any of which conventional additives may be added in addition to (A) and (B) described above.ALSO:An antibactericidal additive mixture for preventing the growth of bacteria at the interface between water and a petroleum distillate fuel boiling in the range 75-750 DEG  F. comprises (A) 1-50 parts per million based on the weight of fuel of an N-thiotrichloromethyl amide or imide having one of the formul <FORM:0980517/A5-A6/1> where X is an acyl group (e.g. <FORM:0980517/A5-A6/2> R1 is hydrogen, an aryl radical or C2-12 alkyl radical, and R is an organic radical, and (B) 50-1000 parts per million based on the weight of water of a nitro-alcohol having the formula <FORM:0980517/A5-A6/3> where R and R1 are hydrogen, aryl, alkyl, or hydroxymethyl radicals.  Additive (A) is present in the fuel phase and additive (B) in the water phase, although initially both may be added to the same phase.  Typical of many specified (A) compounds are N-thiotrichloromethyl derivatives of tetrahydrophthalimide, N - butylbenzenesulphonamide, 2,4 - dioxothiazolidine, 5,5 - dimethyl - oxazolidine-2,4 - dione, 5,5 - dimethyl - hydantoin, and o-sulpho-benzimide.  Typical (B) compounds are 2-nitro-propanol-1, and 2-nitro-2-hydroxymethyl-1,3-propane diol.