baber/WOPTO huggingface dataset:
Patent GB-1082900-A (GB)
Title: Tensioned internal diameter cutting wheel assembly
Inventor: PERKINS ALAN JAMES
IPC: B23D61/10
Filed: 1965-11-02
Abstract: 1,082,900. Grinding. NAVAN PRODUCTS Inc. Nov. 2, 1965, No. 46407/65. Heading B3D. A method for forming a tensioned internal diameter cutting wheel assembly comprises providing a thin annular wheel 3 having a cutting edge on its inner periphery, folding the outer marginal edge 25 of the wheel substantially normal to the plane of the wheel between complementary mating rings 1, 2 to securely grip the wheel, and then, while the wheel is thus held, uniformly tensioning the wheel by means 11, 14 in a radial outward direction. The assembly may be used for slicing semi-conductor materials, the cutting edge of the wheel consisting of diamond bort, the wheel itself being of stainless steel or phosphor-bronze. The mating rings 1, 2, which may be of aluminium, are of female and male form, respectively, and are provided with complementary shoulders 26, 27, the female ring also having an annular bead 11 which co-operates with a shoulder 14 on the male ring. The cutting wheel is assembled by placing the female ring 1 on the platen 20, Fig. 1, of a press which has a sub-ram 22 formed with a spindle 23 for engaging the aperture in the cutting wheel which is thereby supported over the ring 1. The male ring 2 is carried by a ram 21 of the press and, as it is lowered, the sub-ram is also lowered and the shoulders 25, 27 deform the outer marginal edge 25 of the wheel 3 to a position normal to the plane of the wheel, the edge being crimped between the shoulders and held securely thereby. During further downward movement of the ring 2, the annular bead 11 coacts with the shoulder 14 to radially tension the wheel 3. The assembly may be secured together by screws passing through holes in the rings, further holes being provided to permit mounting the assembly on the spindle of a cutting machine. In another embodiment, the rings 36, 37, Fig. 8, are held together after assembly by adhesive 38. The assembly may be lightened by means of cavities 39. In a further embodiment, Fig. 10, the outer peripheral edge 25 of the wheel is turned downwardly between the shoulders 47, 48 of the mating rings and the wheel is radially tensioned by shoulders 50, 51 on the rings. The rings are formed with pins 52 and apertures 53, the pins being riveted over to hold the assembly together. In yet another embodiment, Fig. 12, a cavity 60 is provided to ensure accurate mating of the parts. In a further embodiment, an additional bead forms a seal against the cutting wheel to prevent outward flow of cooling fluid.
Patent GB-1366317-A (GB)
Title: Synchronous demodulator
IPC: H03D1/22
Filed: 1971-10-06
Abstract: 1366317 Synchronous demodulators ROCKWELL INTERNATIONAL CORP 6 Oct 1971 [16 Oct 1970] 46553/71 Headings H3Q and H3A A synchronous demodulator comprises first and second switches 11, 12 alternately closed by a control arrangement 13 for intervals of 120 degrees during successive 180 degrees periods of a carrier signal for selectively coupling an incoming modulated carrier via an inverting signal path and a non-inverting signal path to a filter 14 which acts to remove the carrier frequency and its harmonics from the demodulated signal. Demodulation is achieved by the combination of the modulated carrier with a signal differing in phase by 180 degrees in a differential amplifier 34. By adjusting the intervals of closure of the switches 11, 12 as well as the intervals between the intervals of closure to be multiples of 12 degrees by appropriate switching signals from 13, errors in the demodulated signal caused by the presence of even harmonics and odd harmonics beginning with the third harmonic of the carrier are eliminated.
Patent GB-1478413-A (GB)
Title: Viscose yarn
IPC: D01F2/06
Filed: 1974-10-28
Abstract: 1478413 Viscose yarn A T SERKOV G A BUDNITSKY B M SOKOLOVSKY and V K LEZHNEV 28 Oct 1974 46564/74 Heading B5B In the continuous manufacture of viscose yarn, the yarn is spun, regenerated at 15 - 20‹ C. below the boiling point of CS 2  (46À3‹ C.), washed, subjected to avivage treatment (i.e. brightenng by treating with mineral oil or sulphonated fatty acids) and dried so that water and CS 2  are concurrently removed. In examples viscose solution at 60‹ C. and containing 7À5% α-cellulose, and 6À5% alkali, and having a ball viscosity of 40 sec. and a maturity of 18 (1À0 N NH 4 Cl) was spun through 0À08 mm. spinneret apertures to give 13 tex yarn into a spinning bath of sp. gr. 1À260 containing 145 g./l. H 2 SO 4  and 18 g./l. ZnSO 4  at 50‹ C., regenerated in weak acid at 30‹ or 31‹ C., followed by avivage treatment at 21‹ C. and drying, e.g. by steam heated rolls at 100‹ C.
Patent GB-991906-A (GB)
Title: Alpha probe window
Inventor: TROTMAN DONALD REX
IPC: H01J5/18
Filed: 1961-12-29
Abstract: An alpha-probe window comprising a phosphor layer carrying an aluminium layer has the aluminium applied from a gaseous phase, i.e. by evaporation or sputtering.  The aluminium may be rendered light-opaque by coating with a 0.0005 inch layer of colloidal graphite.
Patent GB-1482103-A (GB)
Title: Fabricating dielectrically isolated semiconductor devices
IPC: H01L21/32
Filed: 1974-10-29
Abstract: 1482103 Integrated circuits INTERNATIONAL BUSINESS MACHINES CORP 29 Oct 1974 [5 Nov 1973] 46676/74 Heading HIK Dielectric isolation between the components of an integrated circuit is provided by depositing a layer of silicon oxynitride SiO x N y  on the surface of a Si body (e.g. comprising an N-type epitaxial layer 15 on a P-type substrate 10), opening an annular window therein, etching an annular groove 23 through the window and simultaneously oxidizing both the exposed Si and the SiO x N y  to form a continuous SiO 2  coating including a surface part 24 and an isolation part 25. The refractive index (and hence the density) and the thickness of the SiO x N y  layer are selected so as to obtain the desired final thickness for the oxide part 24. This is achieved by controlling the CO 2 :NH 3  or O 2 :NH 3  ratio in the deposition mixture with silane. As shown lateral component isolation is completed by a buried P<SP>+</SP> type region 12, but other configurations may render this unnecessary.
Patent GB-1071084-A (GB)
Title: Improvements in mineral-mining cutter picks
Inventor: PLUMMER DEREK
IPC: E21C35/183
Filed: 1962-12-11
Abstract: 1,071,084. Mineral-mining picks. COAL INDUSTRY (PATENTS) Ltd. March 11, 1964 [Dec. 11, 1962], No. 46700/62. Heading E1F. The substantially plane front face of a mineral-mining pick is at least in the vicinity of the cutter tip of the pick inclined at an angle of not less than 60‹, preferably 70-75‹, to the plane which passes through the longitudinal axis of the shank of the pick and which is parallel to the normal direction of motion of the tool when cutting.
Patent GB-1442308-A (GB)
Title: Web or blank cutting apparatus
IPC: B26D7/18
Filed: 1972-10-11
Abstract: 1442308 Cutting-out apparatus BEASLEY FRENCH & CO Ltd 28 Sept 1973 [11 Oct 1972] 46968/72 Heading B4B A rotary cutter unit for a web or blank-cutting machine comprises a shaft 12 journalled in a support, a removable sleeve 14, 16 secured to the shaft and carrying a cutting-out tool 24, the sleeve having at least one aperture 20 communicating with a channel 22 therein, and a valve block 32 arranged to be in sliding contact with the outlet end of the channel so that suction can be applied to a cut-out piece in the tool during a part revolution of the shaft. The sleeve is formed from two ports 14, 16 removably clamped on the shaft by screws 18. The valve block 32 is provided with spigots 34 slidable in elongate apertures 36 and loaded by springs 38 such that the block is urged into sealing contact with the end of the sleeve. The valve block is formed with arcuate ports 40, 42 so that during a part of the rotation of the shaft the interior of the tool is connected to the suction source and during a further part of the rotation the interior is connected to a pressure source thereby ejecting the cut-out portion from the tool. In a modification the cutting tool can be formed integrally with the sleeve instead of separate as shown.
Patent GB-980966-A (GB)
Title: Improvements in document files
IPC: B42F5/00
Filed: 1962-12-13
Abstract: 980,966. Loose-leaf binders. W. LENNARTZ. Dec. 13, 1962 [Dec. 22, 1961; May 8, 1962; June 18, 1962], No. 47076/62. Heading B6E. A loose-leaf binder containing transparent covers 7 of synthetic plastic material adapted to receive loose sheets of paper or the like, is provided with an insert 1 adapted to fill out the binder, so that when the binder is held closed by, for example, an elastic band 8, mutual chafing of the covers 7 is prevented. The insert is formed from cork, pasteboard, synthetic plastics or a foam material. In the latter case a soft cushion is produced having an apertured binding strip 2 of synthetic plastics material welded or stuck to one edge. The cushion may be covered on one or both sides by a sheet of hard synthetic plastic foil. Several inserts may be included in the binder. In another arrangement, a soft cushion is secured to the inside of one or both covers 5, 5<SP>1</SP>, and the cushion may be wedge-shaped. A clip 9 is attached to the elastic band, whereby the band is anchored to the cover 5, Fig. 3 (not shown). The elastic band may be replaced by a U-shaped clip, or, by a flap provided on one cover and adapted to fold over and engage the other cover.
Patent GB-1419877-A (GB)
Title: 5-methyl-11- beta-amino-ethyl- 5h- dibenzo- b,g- azepine derivatives methods for their preparation and compositions containing them
IPC: C07D223/26
Filed: 1973-10-09
Abstract: 1419877 2 - Substituted - 11 - aminoethyldibenz [b,f] azepine derivatives ROUSSEL UCLAF 9 Oct 1973 [9 Oct 1972] 47177/73 Heading C2C Novel compounds I in which R 1  is C 1-4  alkyl, R 2  is hydrogen or C 1-4  alkyl, Alk is methyl or ethyl and n is 0, 1 or 2 and their acid addition salts are prepared by bromination with NBS of 5-methyl-10,11-dihydro - 5(H) - dibenz[b,f]azepin - 10 - one followed by reaction with an orthoformate HC(OZ) 3  in which Z is C 1-3  alkyl to obtain 2- bromo - 5 - methyl - 11 - C 1-3  alkoxy - 10,11 - dihydro - 5H - dibenz[b,f]azepine which is reacted with cuprous methyl- or ethyl-mercaptate to form 2 - (methyl - or ethyl - thio) - 5 - methyl- 10,11 - dihydro - 5H - dibenz[b,f]azepin - 11 - one, this is reacted with an alkyl haloacetate XCH 2 -COOR<SP>1</SP> (in which X is chloro, bromo or iodo and R<SP>1</SP> is C 1-3  alkyl) in the presence of zinc to form compound VII which is dehydrated in an acid medium to form a compound VIII which is hydrolysed and treated with an acid to obtain 2 - (methyl or ethyl - thio) - 5 - methyl- 5H - dibenz[b,f]azepin - 11 - yl - acetic acid which is converted into a functional derivative (preferably the p-nitrophenyl ester) for reaction with an amine HNR 1 R 2  to obtain the corresponding amide which is reduced with a metal hydride to give a compound I (n = 0) which may be oxidized (preferably with hydrogen peroxide) to compounds I (n = 1 or 2). Compounds I (R 1  = Me; R 2  = H) are also prepared by reacting a compound I (R 1 , R 2  = Me; n = 0) with an alkylchloroformate Cl-COO-Z in which Z is C 1-3  alkyl to obtain a compound XII which is saponified and decarboxylated, if desired after oxidation of the sulphur radical. Compounds I prepared are those in which R 1  is methyl, R 2  is hydrogen or methyl, Alk is ethyl and n is 0 or 2. Compounds I have anti-depressant and neurosedative properties and form with a carrier or excipient a pharmaceutical composition which may be administered orally or parenterally.
Patent GB-1268911-A (GB)
Title: Improvements in or relating to blades
Inventor: STEELE THOMAS
IPC: F01D5/18
Filed: 1969-09-26
Abstract: 1,268,911. Making turbine blades; brazing. ROLLS-ROYCE Ltd. 26 Sept., 1969, No. 47612/69. Headings B3A and B3R. [Also in Division F1] A method of attaching a hollow blade 10 to a stub member 14 of a root fixing portion comprises inserting the stub member into the blade, securing the stub member to the blade, securing collar portions 20, 22 to the blade and forming a fir tree root fixing 26 on the stub member. The blade 10 is formed by folding a sheet metal laminate to shape, the laminate consisting of three layers, the central of which is formed with shallow channels on either side. Brazing is performed by spraying a stub member projection 16 and subsequently the blade root with a brazing alloy. The blade 10 is a force fit on the projection and the collar portions 20, 22 are clamped to the blade root after it has been sprayed. The assembled blade is placed in a furnace for brazing. The stub member 14 is machined to provide a fir tree fixing 26 having stress relieving radii 28, 30 and the collar is machined to form sealing lands 32 and recesses 34, the latter being preferably formed electrochemically.
Patent GB-1062857-A (GB)
Title: Improvements in or relating to disc brakes
IPC: F16D55/228
Filed: 1965-11-10
Abstract: 1,062,857. Electromagnetic brakes. SOC. INDUSTRIELLE DE MATERIEL ELECTROMAGNETIQUE S.A. Nov. 10, 1965 [Nov. 13, 1964], No. 47699/65. Heading F2E. An electromagnetic disc brake comprises a pair of pads 24, 24A movable independently into engagement with opposite sides of a disc 10 by springs 23, 23A and released by electromagnets having fixed yokes 16, 16A and respective armatures 20, 20A to which the pads are respectively secured. Each pad has a backing plate 26 which is adjustable relative to a recessed cylindrical portion 21 of its associated armature by a screw-threaded connection, the adjustment being locked by a peg 29 engageable with either of two grooves 28 in the ends of the backing plate to prevent its rotation. Each moving pad and armature assembly is guided in an aperture in a flange, the two flanges 13, 13A being secured by studs 14 and spacer sleeves 15 to a bracket 12. The yokes 16 are also supported by the flanges 13, 13A via studs 17 and non-magnetic spacers 38, one of which (for each yoke) has a groove into which extends a peg 30 on the associated armature to prevent rotation of the latter. Instead of springs 23, 23A being arranged in bores 18 of the yokes and extending, as shown, between the bottoms of the armature recesses and adjustable threaded plugs 19, pairs of springs 44 (Fig. 7, not shown) may be used at diametrically opposite positions with respect to the yokes which in this embodiment are adjustably secured, by nuts 42, on the ends of guide rods 40 which also guide the armatures, the guide rods being mounted in integral flanges 41 of the fixed bracket. In both embodiments levers 31, 31A are provided for releasing the pads manually through pull rods.
Patent GB-1056018-A (GB)
Title: Apparatus for delivering bulk material from a heap at a storage place
IPC: B65G65/20
Filed: 1965-11-10
Abstract: 1,056,018. Recovering material from storage heaps. BETEILIGUNGS - UND PATENTVERWALTUNGS G.m.b.H. Nov. 10, 1965 [Nov. 11, 1964], No. 47751/65. Heading B8E. [Also in Division El] Apparatus for delivering bulk material from a heap comprises two delivery devices in the form of bucket wheels 5, 6 spaced apart by a distance a about half the width of the heap and journalled on a frame 7 movable along a bridge capable of moving towards the heap. A discharge conveyer 4 rune on the bridge which is fed by bands 9 via a transfer device 8. The bands 9 are in V formation and of equal length so that regardless of the direction of movement of the frame 7 or its position on the bridge the supply of material to the conveyer 4 is constant.
Patent GB-989327-A (GB)
Title: Automatic gain control with delayed decay
IPC: H04B3/06
Filed: 1963-12-04
Abstract: 989,327. Automatic gain control. VAN DER HEEM N.V. Dec. 4, 1963 [Feb. 15, 1963], No. 47878/63. Heading H3Q. In an automatic gain control circuit for signals, e.g. i.c.w. and single sideband systems, in which pauses occur during which the transmitted signal is zero, the output of the detector 1 is applied to a memory circuit 2, e.g. a capacitor in a quick-charge, slow-discharge circuit, from which the gain control voltage is derived. The output of the detector 1 is also applied to a differentiator 3 which produces a narrow pulse at the end of each signal period. This pulse triggers a monostable multivibrator 4 into its unstable state, which is maintained for a predetermined time-interval (e.g. 600 m.secs.). At the end of this period the multivibrator 4 reverts to its original state and in doing so triggers a second monostable multivibrator 5 of short period, which produces a pulse to open gate 6. Opening of the gate 6 causes the output of memory 2 to be brought to the potential of a reference voltage derived at that instant from the signal by means of reference voltage generator 7. When the signal comprises a train of modulated pulses it is necessary for the arrangement to be re-set immediately on the commencement of each of the modulated pulses. To this end the pulses from detector 1 are differentiated in a second differentiator 8 the output of which triggers a monostable multivibrator 9 to produce a sharp pulse at the commencement of each of the modulated pulses. These sharp pulses are applied to the multivibrator 4, causing it to re-set immediately and so trigger multivibrator 5, whereby the gate 6 is opened, bringing the output of memory 2 to the instantaneous potential at the output of reference voltage generator 7.
Patent GB-1209188-A (GB)
Title: Improvements in or relating to motor vehicle suspensions
Inventor: WHITE HAROLD WILLIAM
IPC: B60G15/06
Filed: 1967-10-20
Abstract: 1,209,188. Strut type suspension mounting. ROOTES MOTORS Ltd. 20 Jan., 1969 [20 Oct., 1967], No. 47948/67. Heading B7D. In a vehicle strut type suspension the upper end of the strut is connected either directly to a vehicle body or a member attached to the body via a resilient bush whose inner periphery is attached to the strut and whose outer periphery is adhered by bonding to the body or the member. As shown the bush 25 is of rubber and is bonded to a housing 10 having a flange 11 bolted to the vehicle body and having a rim 15 which acts as a limit stop for downward movement of the strut by abutment with a part 22 secured to the strut. The inner periphery of the bush is bonded to a sleeve 20 clamped to the strut as is a spring seat 18. Only the lower part of the outer periphery of the bush may be bonded to the housing to allow relative movement between the housing and the upper part of the bush.
Patent GB-1306606-A (GB)
Title: Apparatus for filling plant pots with potting material
IPC: A01G9/08
Filed: 1970-10-08
Abstract: 1306606 Filling flower pots B KRAUSE 8 Oct 1970 [8 Oct 1969] 47994/70 Heading A1E [Also in Division B8] In a machine for filling plant pots potting material placed in rotating drum 13 through a central opening in one end wall (not shown) is entrained by blades 95 and cascades over and fills pots placed within the drum through a similar opening 112 in the opposite end wall 13. The plant pots are carried along circular path in holders 102 mounted on the arms of cross-shaped member 22. In a first position a plant pot is released from chute 79 into holder 102, in a second position the plant pot is within drum 13 and is filled, in a third position drill head 54 forms a hole in the potting material for the plant, and in a fourth position the plant pot is deposited on a conveyer and carried away leaving the holder empty ready for the next cycle. The drum 13 is driven by motor 15 via belt 18 and wheels 12, and drill 54 is driven by motor 53 slidably mounted on rods 40, 41. Shaft 28 is rotated by motor 23 via belt 26 and gears 8 and intermittently rotates the crossshaped member 22 through 90‹ via Geneva mechanism 31, 121. The shaft 33 is driven from shaft 28 via bevel gears 32 and 34 and drives motor 53 carrying drill 54 up and down via crank 37 and connecting rod 46. Shaft 58 is also driven by shaft 33 via chain 60 and intermittently drives shaft 63 through magnetic clutch 64, moving the conveyor 70 a small distance each time. The magnetic clutch 64 operates when a cam 72 on shaft 28 actuates switch 73. It is arranged that the conveyor moves while the holders 102 are stationary and vice versa. A stack of plant pots is held in chute 79 adjustably mounted on pillar 6 via tubes 75, 77. Electromagnet 85 also operates when switch 73 is actuated pulling down lever 81, pivoted at 80, thus withdrawing the stack retaining plate 84 mounted on its free end. A second lever 90, pivoted at 89 on top of the chute 79, is biased downwards by adjustable weight 94 and bears on lever 81 via distancing piece 91 which passes round the chute. Thus lever 90 follows lever 81 downwards and brings retaining pin 92 which it carries into contact with the rim of the second lowest plant pot thereby retaining all but the lowest plant pot shortly before that plant pot is released. On the return of lever 81 and plate 84 the retaining pin 92 is forced away and permits the stack to slide down onto plate 84 again.
Patent GB-1294577-A (GB)
Title: Electroless nickel plating
Inventor: LEIBOWITZ GARY
IPC: C23C18/36
Filed: 1970-10-09
Abstract: 1294577 Electroless nickel plating ENTHONE Inc 9 Oct 1970 48134/70 Heading C7F An electroless Ni plating bath comprises 0À08 to 0À16 mole/l., 0À19 to 0À38 mole/l. hypophosphite ions, 0À35 to 3À68 mole/l. ammonium ions, 0À09 to 1À07 mole/l. acetate ions and 0À007 to 0À14 mole/l. citrate ions (pH 7À0 to 9À5). The Ni ions may be chloride, sulphate, acetate, hypophosphite or nickel ammonium sulphate. The ammonium ions may be hydroxide, chloride, acetate, sulphate or hypophosphite. The substrate may be A.B.S. epoxy resins, polypropylene, polysulphone and polystyrene or steel, Ni, Co or Pd. Plastic surfaces may be contacted with chromic-sulphuric acid, Sn Cl 2 , and Pd Cd 2 . The plated surface may be subsequently plated with Ni or Cu, and finally Cr.
Patent GB-482486-A (GB)
Abstract: 482,486. Calculating-apparatus. LEWIS, H. G. May 31, 1937, No. 15000. Convention date, June 8, 1936. [Class 106 (i)] A tabular calculator comprises a series of drums 14, Figs. 3 and 5, mounted on separate spindles carried in end discs 11, 12, adapted to be rotated to bring a selected drum into operative relation with respect to a slot in the casing, and means for rotating the drums to select the appropriate row of figures marked on the drums. The slot in the casing is covered by a series of shutters 3, Fig. 2, each shutter being operated by a key 4 to expose the appropriate indication. The selection of the required drum is effected by rotating a knob 2 on a shaft carrying a pinion 23 in mesh with a wheel 18 secured to the left-hand disc 11. When the disc indication is in front of the window 9 on the casing a push rod 7 is forced into one of the holes 21 in the disc 12. A knob on the other side of the casing is then rotated to actuate a pinion 22, Fig. 4, in mesh with a wheel 20 loose on the spindle 17. To the wheel 20 is secured a wheel 19 that engages pinions 16 secured to the drums 14 whereby the drums are rotated so as to bring the desired row of figures into line with the window 10. The shutters 3, Fig. 6, are formed on the ends 25 of bent levers 24 carrying the key finger plates 4 and are controlled by springs 28. On depression of a key the shutter opens and the key is maintained in depressed position by a corresponding spring controlled latch 29 with a projection 32 cooperating with an aperture 35 in the under part of the key lever 24. The shutter is restored to obscuring position by pushing in the latch 29.
Patent GB-953084-A (GB)
Title: Mechanically actuated disc brake
Inventor: WELLS KENNETH JOHN
IPC: F16D55/224
Filed: 1959-07-04
Abstract: 953,084. Disc brakes. GIRLING Ltd. July 4, 1960 [July 4, 1959], No. 48413/63. Divided out of 953,083. Drawings to Specification. Heading F2E. The subject-matter of this Specification is identical to that disclosed in Specification 953,083 but the claims differ.