baber/WOPTO huggingface dataset:
Patent GB-988267-A (GB)
Title: A process for use in the production of a semi-conductor device
IPC: H01L21/22
Filed: 1962-05-25
Abstract: 988,267. Semi-conductor devices. SIEMENSSCHUCKERTWERKE A.G. May 25, 1962 [May 25, 1961], No. 20301/62. Heading H1K. In making a PNPN device a semi-conductor wafer initially of one conductivity type with layers of opposite conductivity type formed by diffusion in its opposed major faces is soldered to a carrier plate by means of an aluminium or aluminium alloy solder. In a typical embodiment, Fig. 4, an N type silicon wafer 5 with a P type skin formed by aluminium diffusion, is mounted on a molybdenum, tantalum, or tungsten plate 1 hard soldered to a copper, aluminium, or silver support 3 with an intervening layer 4 of aluminium or aluminium alloy solder. A circular dot 6 of gold boron alloy and an annulus 7 of gold-antimony alloy are then mounted on the upper surface of the silicon wafer and the assembly heated for 1-10 minutes at 750-850‹ C. The resulting assembly is soldered to the base 19 of a housing constructed of the same material as support 3 by solder 17. Alternatively the assembly is press or shrink-fitted into a mating recess in the base with an intervening layer of ductile material to improve the thermal and electrical contact therewith. The edges of the recessed support 3 may be tapered so that after assembly the walls of the recess press the support against the intervening layer. Completion of the device is effected by etching, grinding or sand blasting the P type layer from the edges of the wafer or by cutting an annular recess extending through the layer on the upper surface of the wafer about annulus 7 and then attaching electrodes to dot 6 and annulus 7. Annulus 7 is soldered or alloyed to castellations formed on the end of a tube 13 and a flexible lead 15 attached to dot 6 in the same process. Both connections may alternatively be formed by resistance welding.
Patent GB-148436-A (GB)
Title: Improved manufacture of liquid organic compounds from coal
IPC: C10G1/06
Filed: 1920-07-10
Abstract: In obtaining liquid products from coal by hydrogenation under pressure and at a high pressure, as described in Specifications 18232/14 and 5021/15, coal is used which contains not more than 85 per cent of carbon referred to dry substance free from ash.  In an example, 5 kilos of coal having a carbon content of 74.48 per cent on the above basis were mixed with 10 kilos tar oil and heated to 400 DEG  C. for six hours under a pressure of 100 atmos. of hydrogen. Eighty-seven per cent of the coal was converted into liquid products, as against 11 per cent of a coal with a carbon content of 92.1 per cent similarly treated.
Patent GB-644051-A (GB)
Title: Improvements in process of manufacture of 2, 2-bis-(4-methoxyphenyl) 1, 1, 1-trichloroethane
Filed: 1947-07-29
Abstract: 2 : 2-Bis-(4-methoxyphenyl)-1 : 1 : 1-trichloroethane is prepared by treating anisole and chloral with about 95 to 98 per cent sulphuric acid in the proportions of at least three moles., e.g. 3-5 moles., each of anisole and sulphuric acid for each mole. of chloral to form a liquid reacting system whilst agitating and cooling to below 20 DEG C. and separating the organic phase containing the product from the acid phase containing water and sulphonated anisole.  In a preferred process, the anisole and chloral are mixed at below 20 DEG  C. and the acid added as rapidly as possible, with cooling to maintain the mixture at 20 DEG  C.  The acid recovered may be used again after fortification with stronger acid.  The two phases obtained after reaction may be separated, preferably below 20 DEG  C., or a centrifuge may be employed.  The organic phase is washed with water or dilute ammonia, anisole removed by steam distillation, and the product cast into blocks or granulated.  It may then be pulverized or recrystallized. Alternatively, the whole reaction mixture may be poured into water.  The Specification as open to inspection under Sect. 91 comprises also reaction temperature which is not restricted to 20 DEG  C. or less, and no limitations are imposed on the reactants with regard to the proportions in which they may be used. This subject-matter does not appear in the Specification as accepted.
Patent GB-148523-A (GB)
Title: Improvements in cathode generators
IPC: H03B5/10
Filed: 1920-07-10
Abstract: 148,523. Ges. f³r Drahtlose Telegraphie. Sept. 9, 1918, [Convention date]. Void [Published under Sect. 91 of the Act]. Electric oscillations, producing.-In a thermionic generator in which oscillations of either one of two frequencies may be produced, cscillation at the undesired frequency is prevented bv the interposition of an auxiliary condenser, inductance or resistance, or a separate circuit syntonized to the undesired frequency. Fig. 3 shows a typical arrangement, the anode and grid circuits of the thermionic valve 1 being coupled to the oscillatory circuit 17, 9, by means of the inductances 3 and 4 respectively. The valve may oscillate at either of two frequencies according to whether the circuits formed by the inductances 3 and 4 with the parallel anode-filament and gridfilament capacities, act resultantly as inductances or as capacities. To suppress one of these frequencies, the reaction between the grid and anode circuits of the valve is so arranged that the valve will oscillate more easily at one of these frequencies than the other. In the arrangement shown, reaction between the grid and anode circuits is prevented at the higher frequency by the insertion of a parallel condenser 14 or a series inductance 15 in the grid circuit. The same result is obtained by the interposition of a separate circuit syntonized to the undesired frequency, which circuit offers a high impedance to variations of the undesired frequency. The invention may be applied to other circuit arrangements in a similar manner, having regard to the frequency to be suppressed and to the effects of interposed inductances and capacities.
Patent GB-1593109-A (GB)
Title: Layers of fragmentary elements for an explosaive charge
IPC: F42B12/32
Filed: 1978-05-18
Abstract: The layer of fragmentary elements (3) located on the explosive charge (2) in the chamber (1) of the firearm is curved inwards so as to direct the discharge of each of the fragmentary elements (3) in a given direction, the fragmentary elements (3) having, in contact with each other, straight parallel sliding surfaces, and being offset parallel to each other in the direction of discharge. This arrangement makes it possible to avoid the fragmentary elements becoming deformed and sticking together on firing, which improves the precision and effectiveness of the shot. <IMAGE>
Patent GB-187734-A (GB)
Title: Improvements in or relating to machines for carding or teasing fibrous materials
IPC: D01G11/00
Filed: 1921-08-02
Abstract: 187,734. Hilton, F. Aug. 2, 1920. Openers and cleaners.-A machine for carding or teasing fibrous materials comprises an inclined spiked drum 1 rotating in a casing 7 provided with a spiked under poition 3 concentric with the drum. The material treated is thrown bv centrifugal force against an adjustable baffle plate 4 which deflects it back on to the drum at a position in advance of that at which it left the drum. The adjustment of the inclination of the plate alters the speed with which the material travels through the machine. The plates 4 may be perforated and the dust removed therethrough by suction. The upper portion 8 of the casing may be arranged to act as the baffle plate. The drum may be driven by belt pulleys 10, 11 through a flexible coupling or in any other suitable manner. The spikes 3 do not extend the whole length of the drum and a discharge opening is arranged at the lower end of the casing, the material being swept out by flexible leather flaps arranged at the lower end of the drum. The material is fed in through an opening 29 closed by a weighted flap 30. The cover 7 may be hinged at the discharge end and secured by a snap fastening. The drum 1 comprises discs 19 - - 22 mounted on a tube 23 abutting against the end discs and secured by rods 25. The spikes 28, which may be of the coiled spring type described in Specification 180,060, are mounted on rods 27. The pitch of the spikes is graduated either continuously or in steps.
Patent GB-160709-A (GB)
Title: Improvements in locks
IPC: E05B35/12
Filed: 1920-07-10
Abstract: 160,709. Brathuhn, O. July 10, 1920. Lock mechanism, multiple-key.-In a doorlock, the key-operated springless lock-bolt 2 is controlled by a spring- actuated tumbler 7, which is controlled by mechanism operated by a separate key 15. The tumbler 7 is pivoted to the casing, 1 at 6 and holds the bolt 2 in its two positions by the engagement of a stud 8 in slots 9 or 10. Attached to the tumbler is the forked end 14 of a rod 12 sliding in a guide 13. The rod is held in its operative position by the spring- pressed tumbler 18, and has a projection 16 for engagement with the key 15. To shoot the bolt, the key 15 is turned, disengaging the tumbler 18 and pulling down the rod by means of the projection 16, so that the end 14 pulls down the pivoted bolt-tumbler 7 and releases the stud 8 from the notch 9. The bolt can now be shot by turning the key 5. When totally shot, the springs 11, 19 restore the mechanism to its normal position, the stud 8 entering the notch 10. The bolt is withdrawn in the same way.
Patent GB-565235-A (GB)
Title: Improvements in or relating to aircraft wings or the like
IPC: B64C3/00
Filed: 1942-02-03
Abstract: 565,235. Aircraft wings. BUDD MANUFACTURING CO., E. G. Feb. 3, 1942, No. 20710/43. Convention date, March 26, 1941. Divided out of 565,207. [Class 4] An aircraft wing comprises a number of spaced ribs, reinforced skins each including a thin outer sheet and a number of span-wise stringers secured to it, and attaching clips secured to the stringers and extending into engagement with the vertical side faces of the ribs to which they are secured. The main stressed skin elements comprise plates 20 to which are welded members 21 of the section shown, adjacent flanges embracing flat extensions 26 of tubular stringers 25. Alternatively, members shaped as shown in Fig. 4 may be used. Welded to the stringers 25 are attachment clips 27 which extend into contact with the vertical sides of the rib cap strips 29 to which they are spot-welded.
Patent GB-857176-A (GB)
Title: Preparation of aminoboranes
IPC: C08G79/08
Filed: 1959-06-17
Abstract: A polymer having as the sole recurring unit the grouping -B(R)-N(Rd)-Re-N(Rc)- is formed by a transamination reaction between a bis (alkylamino) borane, tris (alkylamino) borane, bis (phenylamino) borane, or tris (phenylamino) borane, and a primary or secondary aliphatic or aromatic diamine or triamine, a mixed aliphaticaromatic diamine, or an aminotriazine. A homopolymer having the recurring unit -Re -B(R)-N(Rd)- is formed by a transamination reaction between molecules of an alkyl alkylamino aminoalkyl borane or an aromatic or aliphatic-aromatic analogue thereof, this reaction being effected by heating the aminoborane in question.  In the above formulae, R is an alkyl, aryl, alkaryl, aralkyl, aminoalkyl, aminoaryl, aminoalkaryl or aminoarakyl radical, Rc and Rd represent hydrogen atoms, C1-C18 alkyl groups, phenyl, substituted phenyl, alkylamino or phenylamino radicals, and Re is an alkylene, phenylene or other divalent organic radical.  Novel polymers specified are those obtained from melamine and tris (isopropylamino)- borane, from hexamethylene diamine and phenyl bis (t-butylamino) borane, and from p-phenylene diamine and tris (n-butylamino)-borane.ALSO:An aminoborane is made by effecting a transamination reaction between an amino-borane having in its molecule one or more amino radicals which are not desired in the product, or a substituted borazole corresponding thereto, and a primary or secondary amine corresponding to an amino radical which is desired in the product. For example R3-zB(N Ra Rb)z-x (NRcRd)x is made from R3-zB (N Ra Rb)z and HN Rc Rd where Z is an integer from 1 to 3, X is less than or equal to Z, R is an alkyl, aryl, alkaryl, aralkyl, aminoalkyl, aminoaryl, amino-alkaryl or aminoaralkyl radical, and Ra, Rb, Rc and Rd are each a hydrogen atom, or a C1-C18 alkyl group, or a phenyl, substituted phenyl, alkylamino or phenylamino radical.  The reaction proceeds at room temperature but heating may be advantageous. Tris-(n-butylamino) borane, tris (phenylhydrazino) borane and methyl-bis (n-butylamino) borane are novel compounds. An aminoborane enriched in N15 isotope may be made using an amine enriched in N15 isotope as a reactant.
Patent GB-805209-A (GB)
Title: Improvements relating to tined agricultural implements for working cut crops
IPC: A01D80/00
Filed: 1956-07-04
Abstract: 805,209. Haymaking. VAN DER LELY N.V., C. July 4, 1956 [July 23, 1955], No. 20740/56. Class 6(3). An implement for working cut crops comprises a shaft and at least one resilient tine adapted to rotate uniformly about the axis of the shaft, the tine comprising a curved part which follows an involute curve having a base circle which is concentric with the axis of the shaft. In the embodiment illustrated in Fig. 1, the implement comprises a plurality of such tines 2 which follow involute curves from their root parts 6 to the points 7, such curves having a base circle the periphery of the rotatable shaft 1. The tines are arranged in sets of four, all the tines of each set lying in the same plane and being staggered by 90 degrees relatively to the tines of the adjacent sets. Further, each set of tines is separated from adjacent sets by a V-shaped plate 17 attached to angle brackets 18 on the frame of the implement, the plates serving to prevent the crops from winding round the shaft 1. At its root 6, each tine is bent at right angles to the plane in which it rotates to form a root part by which the tine is secured to the shaft 1, the root parts of adjacent sets of tines being bent in opposite directions so that the root parts of one set of tines can lie between those of an adjacent set of tines, the two sets of root parts being clamped to the shaft 1 by means of clamping plates 12 and 13. As shown in Fig. 4, the tines are incorporated in a rake wheel for mounting on a shaft which is inclined to the travelling direction of the implement. Each pair of tines is made from a single piece of spring steel and is bolted to a plate 19 mounted on the shaft, and in this ease the involute curves followed by the tines have as base circle the circle on which the bolt holes 20 lie.
Patent GB-995535-A (GB)
Title: Improvements in and relating to shuttle valves
IPC: F16K15/00
Filed: 1964-05-20
Abstract: 995,535. Valves. HOERBIGER VENTILWERKE A.G. May 20, 1964 [May 22, 1963], No. 20743/64. Heading F2V. A shuttle valve for pneumatic or hydraulic control systems comprises a housing 1 with a bore 2 in which a piston 3 with gaskets 12, 13 is axially slidable to control the connection between two feed ports 6, 7 and a discharge port 9, the distance between the gaskets 12, 13 being greater than the axial length of an enlargement 10 of the bore. Accidental communication between the two feed ports is thus prevented. Hollow extensions 16, 17 with cut-outs 18, 19 for the passage of fluid are formed integrally with end covers 4, 5 for the housing and protrude into recesses 14, 15 at opposite ends of the piston to serve as guides. Rubber or plastic washers 20, 21 serve both to seal the joints between the housing and its covers and to cushion the movement of the piston. In an alternative construction, the piston consists of two discs bolted to opposite ends of a rod guided in a sliding bearing formed in the enlargement of the housing.
Patent GB-1512433-A (GB)
Title: Peptides having lh-rh/fsh-rh activity and process for preparing them
IPC: A61K38/04
Filed: 1975-05-16
Abstract: 1512433 Amino acid derivatives HOECHST AG 16 May 1975 [18 May 1974 20 Dec 1974 (2)] 20854/75 Heading C2C [Also in Division C3] In Ex. (7a) Boc-Cys(Bu<SP>t</SP>)-OH. DCHA is prepared by (i) the reaction of cysteine with tbutanol to give H-Cys(Bu<SP>t</SP>)-OH which is (ii) reacted with t-butyloxycarbonylazide to give Boc-Cys(Bu<SP>t</SP>)-OH which is (iii) treated with dicyclohexylamine. The compound, in Ex. 7(b) is treated with (i) sulphuric acid and (ii) 2,4,5- trichlorophenol to give Boc-Cys(Bu<SP>t</SP>)-OTcp. In Ex. 10(a), butyloxycarbonylproline is reacted with cyclopropylamine to give Z-Procyclopropylamide, which, in Ex. 10(b), is treated with hydrogen in the presence of a Pd/BuSO 4  catalyst to give H-Pro-cyclopropylamide. HCl.
Patent GB-1040885-A (GB)
Title: Preparation of polyurethane polymeric compounds
Inventor: BECALICK ALAN JAMES
IPC: C08G71/00
Filed: 1962-05-30
Abstract: Iminodicarboxylic esters of a phenol or an alcohol which contains 6-12 C may be prepared by (1) reaction of a chloroformic ester with a carbamate or metal cyanate and an alcohol or (2) reaction of a triscarbalkoxy isocyanurate with an alcohol, and the products of (1) and (2) may be transesterified.  In Example (1) diethyl iminodicarboxylate was heated with dodecanol to form didodecyl iminodicarboxylate, and the same compound was also produced by reacting triscarbobutoxy isocyanurate with 6 moles of dodecanol.  In Example (2) n-hexylcarbamate was reacted with metallic sodium followed by n-hexyl chloroformate to produce di-n-hexyl iminodicarboxylate.  The analogous 2-ethyl-hexyl ester was made similarly.ALSO:Polyurethanes and polyureas are prepared by reacting at least one polyhydroxy, aminohydroxy or polyamino compound with at least one iminodicarboxylic ester of a phenol or an alcohol which contains 6-12 C.  The iminodicarboxylic ester (see Division C2) may be derived from hexanol, n-octanol, 2-ethylhexanol, decanol, dodecanol, benzyl alcohol, cyclohexanol and methyl cyclohexanol or phenols, e.g. cresols, chlorophenols and xylenols.  The polyhydroxy compound may be monomeric, e.g. ethylene glycol or polymeric, e.g. a polyether or polyester.  The polyamino compound may be a diamine, polyethylene imine or an amino-ended polyamide or polyurea, and the aminohydroxy compound may be ethanolamine, 6-aminohexan 1-ol and diethanolamine.  In Example (1), didodecyl iminodicarboxylate was mixed with a polyester derived from phthalic anhydride, hexanetriol and adipic acid, a butylated urea formaldehyde resin and solvent to form a coating composition which was applied to steel panels.ALSO:A coating process comprises dissolving at least one polyhydroxy, aminohydroxy or polyamino compound and at least one iminodicarboxylic ester of a phenol or an alcohol containing 6-12., in a solvent, and applying the solution to a substrate e.g. glass, metal, or steel panels and heating the coated substrate to form a polyurethane or polyurea (see Division C3).  The mixture may be allowed to react partially before applying to the substrate.  In Example (1) didodecyl iminodicarboxylate was mixed with a hydroxy terminated polyester, a butylated urea-formaldehyde resin and a solvent mixture (methyl isobutyl ketone, cyclohexanone and diacetone alcohol) and the solution brushed on to steel panels.
Patent GB-639222-A (GB)
Title: Process for purifying agar-agar
IPC: C08B37/00
Filed: 1947-08-01
Abstract: Agar-agar which has been extracted from seaweed is purified by subjecting finely-divided agar-agar to the action of a large quantity of cold water for a considerable time, preferably at least 24 hours. Preferably the agar-agar is maintained in contact with the water while the latter is slowly moving, and this may be effected by introducing the agar-agar into a vessel, preferably funnel-shaped, into which the water enters from below and from which it flows from the top.  The purified material may be dried by freezing and then thawing, surplus water being preferably removed in a centrifuge.
Patent GB-518071-A (GB)
Title: Improvements in or relating to distant control systems
IPC: G01D5/34
Filed: 1938-07-15
Abstract: 518,071. Photo-electric distant control apparatus. SOC. ANON. FIMI. July 15, 1938, No. 21011. Convention date, July 22, 1937. [Class 40 (iii)] An apparatus for producing at a distance rotating or translatory movements with simultaneous indication of the amplitude of the displacement comprises means for generating photoelectrically in conjunction with the relative displacement of a pointer and a scale a series of separate signal impulses of which both the number and the intensity are proportional to the displacement. As shown, a pointer 2 moving over a scale 1 carries a strip 3 with graded transparencies moving between a lamp 6 and a photo-electric cell 7.
Patent GB-1064450-A (GB)
Title: Improvements in and relating to automatic switching systems
IPC: B61L17/00
Filed: 1964-05-21
Abstract: 1,064,450. Hump yard control, route setting. GENERAL SIGNAL CORPORATION. May 21, 1964 [June 12, 1963], No. 21027/64. Heading B7N. [Also in Division H3] In an automatic arrangement for routing cuts of vehicles from a hump track to a storage track in a railway classification yard, each track switch has associated therewith at least one magnetic-core signal storage device and the route information is advanced to each relevant storage device in turn as the cut proceeds through the yard. Assume in the track arrangement shown in Fig. 1B that a cut has to be routed from the hump track via track switches TS1, TS3 and TS7 to storage track T7. The route is fed into a first storage device D in unit 1 by operation of a button associated with track 7 in unit 8. This storage device includes four magnetic core elements and on receipt of a route the first (upper) element is set to act as a tag bit, the second stores information relating to track switch TS7 and is set since the route requires that the switch be set to the left and the third and fourth elements store information relating to switches TS3 and TS1, respectively, and are not set since the route requires these switches in the right-hand position. The presence of a tag bit in the upper element is detected by push-button control unit 9 and prevents a further route being fed into the system until storage device D is clear. Advance control unit 10 detects the presence or absence of a tag bit associated with a preceding route in storage device C and if this device is clear, the route in D may be read serially into storage device C. In a similar manner except that parallel feed out is employed the route is advanced via storage device B to device A. In device A the condition of the fourth (lowermost) element is determined and track switch TS1 is set accordingly, in addition this information subsequently controls the direction in which the route information is advanced, i.e. to the storage device associated with track switch TS3 since track switch TS 1 is set to the right. When the cut enters a track circuit associated with track switch TS1 the information stored in the first, second and third elements of storage device A is transferred to device A associated with track switch TS3 and controls this switch to its right-hand position. Since the information stored in the fourth element has been utilized this is not transferred. In a similar manner the information in the first and second elements is transferred to device A associated with track switch 7 and subsequently controls the switch to its left-hand position to route the cut to storage track 7. In a further arrangement (not shown) for use where the track arrangement includes two hump tracks further storage devices are provided to control the crossover between the hump tracks for dual control where cuts enter on both tracks or single control when cuts enter on one or other tracks.