baber/WOPTO huggingface dataset:
Patent GB-1021117-A (GB)
Title: Improvements relating to electrically heated soldering appliances
Inventor: WOOLCOTT BRIAN REGINALD
IPC: B23K1/018
Filed: 1963-10-31
Abstract: 1,021,117. Soldering. CHARLES AUSTEN PUMPS Ltd. Oct. 29, 1964 [Oct. 31, 1963], No. 42993/63. Heading B3R. An electrically heated soldering appliance comprises a hollow bit, a solder collecting chamber attached to a tubular extension of the bit and to a tube intended to be connected to a source of vacuum and a vent situated to be covered or uncovered by an operator to control the application of vacuum to the chamber. A device comprises a handle 2, Fig. 1 (not shown), and a body part 1a containing the electric heating element, the limb 4a of a hollow Y- shaped bit 4a, 4b being secured to the body 1a by a screw 5. The limb 4b of the bit extends into one end of a solder collecting chamber 6 the other end of which is closed by a plug 7 through which projects a tube 8. The tube 8 has apertures 8a therein, extends through a T- piece 9 having an opening 9a and is connected to a tube 11 which is joined to the inlet of an air filter 15. The filter is coupled to a vacuum pump 15 and the pump, filter &c. are mounted on a portable unit with a handle 20 and rests 21 for the appliance. In operation if the vent 9a is covered or blocked, solder melted at the tip of the bit 4b is drawn into the chamber 6 and collected to allow a component to be removed from an electrical circuit.
Patent GB-1291539-A (GB)
Title: Improvements in or relating to typewriters or the like
IPC: B41J35/10
Filed: 1971-09-15
Abstract: 1291539 Ink ribbon mechanism SIEMENS AG 15 Sept 1971 [16 Sept 1970] 42994/71 Heading B6F An ink ribbon vibrator 2 mounted on a movable type carriage 1 is actuated by a tension tape 9 fixed at one end to the machine frame 11 and at the other to a cam-actuated bell-crank lever 12. A loop is formed in the tape by a roller 7 mounted on a lever 4 supporting the vibrator, two idler rollers 5 and 6 guiding the tape on each side of roller 7. To provide a variable throw for different colour printing, three modifications are illustrated in Figs. (2, 3 and 4). In (Fig. 2) an electromagnet selectively allows a lever (16) to which the tape 9 is attached to either pivot or not pivot with respect to the bell-crank lever 12 upon which it is pivoted. In Figs. (3 and 4) respectively an electromagnetic or manual latching mechanism alters the position of the fixed end of the tape 9 with respect to the machine frame. In (Fig. 5), instead of a fork vibrator as shown in Fig. 1, spaced leaf-springs (29, 30) guide the ribbon and are pivoted about a horizontal shaft 31. A roller (34) is arranged on the support (32) of the leaf-springs (29, 30), around which roller the tension tape forms a loop, between the idler rollers 5, 6. In this embodiment, the loop is increased in size to cause the ribbon to be raised to the printing position.
Patent GB-944559-A (GB)
Title: Apparatus for producing mosaic parquet panels
IPC: B27M3/04
Filed: 1960-12-14
Abstract: 944,559. Apparatus for making parquet panels. H. O. METZGER. Dec. 14, 1960 [Dec. 14, 1959], No. 43127/60. Heading B8F. Apparatus for making parquet panels composed of groups of parquet slats comprises a frame for assembling the slats and means for applying adhesive tape to the slats whilst in the frame for joining them to form the panel. In one form the slats are assembled in a frame and a number of frames assembled in a magazine from which they are fed by a conveyer under the tape applying means or alternatively groups of slats are disposed in a number of magazines from which they are fed by a conveyer provided with frames for assembling the groups of slats which are then joined by the tape applying means. The tape applying means is mounted above a track 34, Fig. 5, along which the assembled slats are fed, the tape being fed from a reel 22, over gumming means 25, 26, 27 and thence under spring-urged pressure rollers 28, 28a which apply the tape. Heaters 33 may be provided to ensure adequate bonding of the tape. The tape is severed by cutting wheels 44, Fig. 7 (not shown), or by a device in which spring-urged cutters 38, 38a are mounted on a rotary wheel 36, each cutter being longer than the width of the tape. Each cutter follows the movement of a panel 41 and severs the tape, the next cutter then engaging the following panel. Adhesive jointing material may also be applied at the abutting corners of adjacent groups of slats.
Patent GB-1244875-A (GB)
Title: 2-bis(diesters of phosphonomethyl) amino 1,3-dihydroxy propanes
IPC: C07F9/40
Filed: 1968-09-11
Abstract: 1,244,875. 2 - Bis(diesters of phosphonomethyl)amino 1,3 - dihydroxy propanes. STAUFFER CHEMICAL CO. 11 Sept., 1968 [20 Oct., 1967], No. 43194/68. Heading C2C. The invention comprises compounds of the general formula wherein R 1 , R 2 , R 3  and R 4  are independently selected from alkyl, substituted alkyl including haloalkyl, alkoxyalkyl, hydroxyalkyl and hydroxyalkoxy alkyl, or aryl radicals including substituted aryl radicals and aralkyl radicals and R 5 , R 6 , R 7 , R 8 , R 9 , R 10  and R 11  are independently selected from hydrogen, cycloalkyl, alkyl, substituted alkyl including hydroxyalkyl, alkoxyalkyl and hydroxyalkoxyalkyl or aryl radicals including substituted aryl radicals and aralkyl radicals, or R 5  or R 6  is alkenyl or carboxyl, or R 5  and R 6  together represent a cycloalkyl ring which may be substituted. They may be obtained by reacting a cyclic compound (II) of the formula with phosphite diesters of the formula the reaction being preferably carried out while maintaining the amount of available free water present during the reaction at less than 0À75 mole water per mole of phosphite reactant used. Most preferably completely anhydrous reactants an reaction conditions should be used. The compounds II can be obtained by reacting and aldehyde or ketone (R 5 )C(O)R 6  with a 2 - amino - 1,3 - propane - diol of the formula and the water of reaction should be removed e.g. by azeotropic distillation or by desiccation prior to reaction with the phosphite diester. A catalyst such as iodine, HCl, acetic acid or KCN can be included in the main reaction between the compound II and the phosphite diester but the use of such catalyst should preferably be avoided. The phosphonate products are useful as fire-retardant agents for polyurethane resins.
Patent GB-1329888-A (GB)
Title: Phenolic resin compositions containing it
IPC: C08G8/28
Filed: 1971-09-16
Abstract: 1329888 Phenolic-resin KONISHIROKU PHOTO INDUSTRY CO Ltd 16 Sept 1971 [16 Sept 1970] 43312/71 Heading C3R [Also in Division G2] A condensation product is obtained by the reaction of (1) an alkaline insoluble or difficultly alkali-soluble p-substituted phenol-formaldehyde resin of the general formula wherein R represents an alkyl, aryl, alkoxy, sulphoalkyl, aryloxy, aralkyloxy, carboalkoxy, aralkyl or acetyl group; each of R 1  and R 2  are H, alkyl or alkoxy, n is at least 3, with (2) a sulphonyl chloride of o-benzoquinone-diazide or o-naphthoquinonediazide. In the examples resins (1) in which R 1 , R 2  are each H and R is CH 3 , t-butyl, phenyl, methoxy or carboxymethyl are condensed with (2) 1,2 benzoquinone-2- diazide-4-sulphonyl chloride, 1,2-naphthoquinone-2-diazide-5-sulphonyl chloride or 1,2- napthoquinone-2-diazide-4-sulphonyl chloride using dioxane as solvent, in the presence of Na 2 CO 3  or pyridine and maintaining the pH below 8. Light sensitive compositions can be prepared by dissolving the product and, optionally a phenol-HCHO or m-cresol-HCHO alkalinesoluble novolak resin in an organic solvent such as acetone, dioxane, methyl or ethyl "Cellosolve" (R.T.M.). A dye such as methyl violet may also be added. Uses.-Light-sensitive materials for printing plates.
Patent GB-1149639-A (GB)
Title: 3-amino-6-halopyrazinonitriles and their preparation
IPC: C07D241/26
Filed: 1966-09-28
Abstract: 1,149,639. 3-Amino-6-halopyrazinonitriles. MERCK & CO. Inc. 28 Sept., 1966 [4 Oct., 1965], No. 43400/66. Heading C2C. The invention comprises 3 - amino - 5 - X- 6 (chloro - or bromo) - pyrazinonitriles, where X is H, Cl or Br or a C 1-5  alkyl, C 1-5  alkoxy, C 1-5  alkylthio, mononuclear-aryl, mononucleararyl-substituted C 1-5  alkoxy, or mononucleararyl-substituted C 1-5  alkylthio radical or an amino radical -NR<SP>1</SP>R<SP>2</SP>, where each of R<SP>1</SP> and R<SP>2</SP> is, independently of the other, H or a mononuclear aryl, C 1-5  alkoxy, C 1-5  alkyl, C 2-5  alkenyl, C 3-6  cycloalkyl or substituted C 1-5  alkyl in which the substituent is halogen, hydroxy, C 3-6  cycloalkyl, mononuclear aryl, (C 1-5  alkyl)-substituted aryl, halo-substituted aryl, di (C 1-5  alkyl) amino or a heterocyclic radical, or -NR<SP>1</SP>R<SP>2</SP> is a heterocyclic radical of formula where n is 4, 5 or 6. The novel compounds may be made by reaction of a 3-amino-5-X-6-(chloro or bromo-) pyrazinamide with dimethylformamide and phosphoryl chloride or thionyl chloride to give N,N - dimethyl - N<SP>1</SP> - [3 - cyano - 5 - (chloro or bromo) - 6 - X - 2 - pyrazinyl formamidine and hydrolysis of the latter to 3-amino-5-X-6- (chloro or bromo)- pyrazinonitrile. 3-Amino-6- (bromo or chloro)-pyrazinonitrile can be made by brominating or chlorinating 3 - aminopyrazinonitrile. 3 - Amino - 5 - R<SP>1</SP>R<SP>2</SP>N - 6- (chloro or bromo)-pyrazinonitriles can be obtained by reacting a 3-amino-5-(chloro or bromo) - 6(chloro or bromo) - pyrazinonitrile with ammonia or an amine R<SP>1</SP>R<SP>2</SP>NH. 3 - Amino - 5X1 - 6 - halopyrazinamides are obtained by reacting appropriate alkyl 3- amino - 5X1 - 6 - halopyrazinoates with ammonia (where X<SP>1</SP> is as for X excepting C 1-5  alkoxy and C 1-5  alkylthio). 3 - Amino - 5X<SP>11</SP> - 6 - halopyrazinamides (where X<SP>11</SP> is C 1-5  alkoxy, C 1-5  alkylthio and R<SP>1</SP>R<SP>2</SP>N) are obtained by reaction of a 3-amino- 5-chloro (or bromo)-6-halopyrazinamide with an X<SP>11</SP>-yielding reagent, e.g. a C 1-5  alkanol, C 1-5  alkylmercaptan or alkali metal compound thereof, or an amine R<SP>1</SP>R<SP>2</SP>NH. Methyl 3 - amino - 6 - bromopyrazinoate 4- oxide is obtained by refluxing methyl 3-amino- 6-bromopyrazinoate with m-chloroperbenzoic acid in chloroform. Methyl 3 - amino - 5 - (chloro or bromo) - 6- bromo - pyrazinoate. The above 4 - oxide is reacted with POCl 3  in dimethylformamide to yield methyl 3-amino-5-chloro-6-bromo-pyrazinoate. By using POBr 3 , methyl 3-amino-5,6-dibromopyrazinoate is obtained.
Patent GB-1436862-A (GB)
Title: Thread spools
IPC: B65H75/18
Filed: 1973-09-18
Abstract: 1436862 Reels; package of reels MOLNLYCKE SYTRAD AB 18 Sept 1973 [26 Sept 1972] 43727/73 Headings B8C and B8M [Also in Division D1] A thread reel provided with a continuous thread comprises several interconnected spools 1, at least one of which is a sewing machine under-thread spool, the units being interconnected by means 2 which detachably engage the spools. As shown the engaging means comprise ribs 4 which engage in recesses 3. The plastics spools 1 are disposable, i.e. are not intended to be rewound, may be labelled and provided with a plastics protective film over the thread. The under-thread spools 1 are meant to be removed one by one from the thread reel while the remainder of the reel is used for the upper thread.
Patent GB-905290-A (GB)
Title: Method for preparing low viscosity, high solids calcium carbonate slurry
IPC: D21H21/52
Filed: 1959-12-30
Abstract: Calcium carbonate slurries suitable for paper coatings are prepared by first forming an aqueous slurry containing 70% - 78% by weight of finely divided calcium carbonate (prepared according to Specification 860,959) together with 0,4 - 2,0% of a dispersant and then simultaneously adding to said slurry finely divided calcium carbonate from the same source, dispersant and water in the same relative proportions as those in the slurry and passing the resultant mixture through a hydraulic attrition zone having an impeller moving with a peripheral speed of at least 1500 feet per minute.  A low viscosity slurry of calcium carbonate is thereby obtained.  The dispersant preferably consists of a homogeneous mixture of sodium phosphate glass, zinc oxide and potassium or lithium salt or hydroxide. Specification 860,959 describes the precipitation of calcium carbonate in a reaction zone having a rapidly moving rotor co-operating with a stator; the particle size of the product employed to form the initial slurry is generally from 0,05 to 0,30 microns.
Patent GB-1182367-A (GB)
Title: Wedge Bonded Leads for Semiconductor Devices
IPC: H01L23/488
Filed: 1968-09-18
Abstract: 1,182,367. Electric couplings. WESTING- HOUSE ELECTRIC CORP. 18 Sept., 1968 [27 Sept., 1967], No. 44340/68. Heading H2E. [Also in Division H1] In a semi-conductor device 100 a lead 40 and the tapered end 44 of a conductive pin 42 are connected together in a solderless connector assembly 30 comprising a conductive member 32 provided with a cavity into which the tapered pin end 44 and lead 40 are wedged. A member 36 insulates the connection from a metal support member 34 which is provided with a mounting pedestal 104 on to which are soldered a semi-conductor element 106 and back-up electrode 108. A screw terminal 112 is thus connected to one region of the element 106 and the wire 40 is affixed to another region. A header assembly 120, comprising a cup-shaped member 114 insulated from the pin 42 by a grommet 118, is provided with a flange 116 which is welded to a weld-ring 102 on the support member, this operation being combined with that of wedging the pin and lead into the receptacle 32. In other embodiments of the solderless connection, the conductive receptacle 32 is omitted, the pin and lead being wedged into a cavity formed in an insulating receptacle (14, Fig. 1 not shown); and the tapered end 44 of the pin 42 may be formed with flutes, a spiral or a series of concentric rings to enhance the frictional engagement. In another embodiment of the header assembly 120 the cup-shaped member 114 is formed with corrugated walls which transmit an axial force on the pin 42 urging it into the cavity of receptacle 32. In a further embodiment, the pin, guided by a sleeve extending from the header assembly, is continuously urged into the cavity by means of a spring washer located between the header and a radial flange on the pin.
Patent GB-945267-A (GB)
Title: Signal-processing apparatus for an fm/fm multiplex signal
IPC: H04B14/08
Filed: 1961-12-12
Abstract: 945,267. Multiplex radio signalling; limiting circuits. HAZELTINE CORPORATION. Dec. 12, 1961 [Jan. 24, 1961], No. 44431/61. Headings H3W and H4L. Relates to a radio receiver for a stereophonic system in which the transmitted signal consists of a main carrier wave frequency modulated by the L+R signal and by a sub-carrier which itself has been frequency modulated by the L - R signal. In order to use a ratio-detector, which is not completely insensitive to amplitude changes, for demodulating the main carrier wave, the frequency detector for demodulating the sub-carrier is preceded by a limiter having a variable threshold which is dependent on the sub-carrier amplitude. Thus, the required balance between the L and R signals is maintained. As shown in Fig. 1, the receiver apparatus 11 provides an I.F. signal to the frequency detector 12, e.g. a ratio detector providing A.G.C. for the apparatus 11. The composite signal at terminal 13 which is subject to undesirable amplitude variations, consists of an L+R signal which is selected by a low-pass filter 14 including the usual de-emphasis circuit, and fed to a matrix 15, and the subcarrier frequency-modulated by the L - R signal, which is supplied via a band-pass filter 16 and variable threshold limiter 17 to a frequency detector 18 including a de-emphasis circuit. The resulting L - R signal is fed to the other input of the matrix 15 which carries out the appropriate addition and subtraction to provide the L and R signals. The variable threshold limiter 17, Fig. 2, maintains the level of the detected L - R signal proportional to the strength of the sub-carrier at terminal 13, the clipping level being determined by the R.C. circuit 24, 25. Both peaks of the signal are clipped and the amplitude-limited signal is supplied to a pulse-counter frequency detector 18 including a differentiator 26, 27. Diode 28 removes the positive-going pulses and clamps the negative pulses to earth potential, and a de-emphasis circuit 30, 31 also serves to filter out the sub-carrier frequency pulses. The series inductor 29 improves linearity and provi des increased output. In order to balance out any amplitude modulation which may be due to the L+R signal and would be detected by diode 28, an amplitude detector 33 is connected to the point 21 and feeds signals via an adjustable resistor 39 to the point 32. Specifications 945,268 and 945,269 are referred to.
Patent GB-1368426-A (GB)
Title: Electrical switches
IPC: H01H35/26
Filed: 1970-09-18
Abstract: 1368426 Fluid actuation of switches JOSEPH LUCAS (INDUSTRIES) Ltd 7 Sept 1971 [18 Sept 1970] 44606/70 Heading H1N In a fluid pressure switch containing movable contact 18 and fixed contacts 19, 21, fixed contact 19 is resiliently urged against movable contact 18 so that contact 18 first breaks contact with contact 21 then subsequently with contact 19, fluid pressure in chamber 13 acting on diaphragm 17 to depress plunger 16 to depress movable contact 18. Contact 18 is depressed against the action of compression spring 22 bearing on conductive member 28 electrically connected to terminal 27 through stud 31 threaded to adjust the pressure of spring 22 and hence the operating pressure. Contact 19 is part of a sleeve which slides on terminal 25 against the action of a spring, a spring 29 urging contact 19 against movable contact 18, so that as movable contact 18 is depressed it first breaks contact with fixed contact 21 and is followed down by contact 19 until contact 19 can go no further when further depression of contact 18 causes it to break contact with contact 19. In a second embodiment, Figs. 3, 4 (not shown), contact 19 is replaced by a spring blade 32 urged by its own resilience against movable contact 18 to follow it down. In a third embodiment, Figs. 5, 6 (not shown) contact 19 is replaced by a spring arm which follows contact 18 down until the spring arm encounters a stop, which is adjustable to vary the distance travelled by contact 18 before it breaks contact with the spring arm. Reference has been directed by the Comptroller to Specification 1,336,431.
Patent GB-1399487-A (GB)
Title: Rotary casting machine and method
IPC: B29C39/00
Filed: 1972-09-28
Abstract: 1399487 Rotational casting ARMSTRONG CORK CO 28 Sept1972 [22 Feb 1972] 44843/72 Heading B5A A rotary casting machine comprises inner and outer elongate mould members coaxially spaced so as to define an annular moulding space therebetween, end-closure wall members carried by the mould members for removably closing the spaces at the ends, one of the end-closure members having a filling opening therein, means to supply moulding material therethough into the mould cavity and rotary drive means. As shown in Fig. 1, the machine comprises a mould assembly 21 supported by idler rolls 23-24 and bearing 25 and rotatably driven by motor 32. Tailpiece 27 carrying mandrel 54 and inner mould structure 551, 56<SP>1</SP> is reciprocated by cylinder 36 via coupling 39 which prevents rotation of rod 38. Assembly 21 has semicylindrical halves 46, 47 pivoted together at 48 and door 57 through which moulding material is supplied through tube 45 from head 43 reciprocated on carriage 41 by cylinder 44. The mandrel 54, Fig. 4, carries inner mould segments, 55<SP>1</SP>, 56<SP>1</SP>, via channel members 71 having linking bats 72, 73 joining mandrel 54 and tensioned by springs 85 toward the collapsed position enabling withdrawal from the moulding. The article may be a foamed plastics tube, e.g. pipe insulation conduit of polyurethane and may comprise a core of cured foamed plastics 10 having inner and outer sheaths 11, 12 of flexible plastics or paper sheeting. The outer sheath 12 may be a laminate incorporating a reflective metallic foil. The overlapping ends of sheaths 11, 12 are secured by pressure-sensitive adhesive tape 13, 14.
Patent GB-1163946-A (GB)
Title: Device for Holding a Tap in an Automatic Machine Tool
IPC: B23G1/46
Filed: 1966-10-07
Abstract: 1,163,946. Tapping device. EDWARD WILLIAMS HOLDINGS Ltd. 6 Oct., 1967 [7 Oct., 1966], No. 44896/66. Heading B3N. A tap holder for use in a turret lathe, comprises a body 24, 29 for mounting on the turret, an air piston 27 slidable in the body and secured to a shank 17, and a head 12, 12a for holding the tap 11. A dog member 14 is non-rotatably engaged with the head, and shank 17 has dogs which are urged into engagement with dogs 14 by a spring 18. Shank 17 is connected to head portion 12a by spring-urged pawls 20. In operation, air is admitted to cylinder 23 so that shoulder 30 is abutted against body 29. Forward movement of the device is arrested, the workpiece continues to rotate, and tapping takes place until the dogs 14 are disengaged from shank 17. The direction of rotation of the workpiece, and the feed of the turret, are reversed simultaneously and cylinder 23 is exhausted. The tap, along with shank 17, is retracted, pawls 20 engage part 12a and prevent its rotation relative to shank 17. The orientation of recesses 19 is such that, when spring 18 again expands, the dogs are aligned. Head 12 can be dismantled and re-assembled with part 12a reversed, and pawls 20 inverted, so as to provide for tapping of the opposite hand.