baber/WOPTO huggingface dataset:
Patent GB-1069645-A (GB)
Title: Improvements in or relating to projectiles or the like movable objects
Inventor: GUSTAFSSON LARS ERIK
IPC: F42B17/00
Filed: 1963-11-11
Abstract: 1,069,645. Projectiles. BOFORS A.B. Nov. 11, 1963 [Nov. 12, 1962], No. 44484/63. Heading F3A. A projectile has a protective cap which is released after a material holding it in place is shattered on entry of the projectile into water from air. A housing (5) is screwed to the forward part of an anti-submarine rocket (1) and carries a cone-shaped housing (7) made of brittle plastics for shattering. Within the housing (7) the rear edges of two halves (8a, 8b) of a protective cap engage a ring (6), with pins (29) in the halves engaging holes in a sleeve (12) to prevent the halves separating until the sleeve has moved forward of the ring (6), such forward movement being prevented while releasable catches (9) are retained by the housing (7). A transducer (10) surrounded by a rubber capsule (11) transmits pulses into the water for a proximity fuze after removal of the halves (8a, 8b). The transducer (10), capsule (11) and ports (12-16) are movable in a forward axial direction by a spring (24) and an oil dashpot system. On impact with the water the ring- shaped housing (7) is shattered and catches (9) released. The initial dynamic pressure of the water on the cap halves (8a, 8b) prevents these being moved forward with the transducer (10) by the spring (24) and they remain in position with the rear edges still held by the ring (6) until the water pressure has decreased and flow conditions around the front part of the rocket become stabilized, when the spring (24) will move the parts forward and the cap halves be released.
Patent GB-1395565-A (GB)
Title: Secret transmission system
IPC: H04B1/00
Filed: 1972-09-27
Abstract: 1395565 Secret transmissions PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 27 Sept 1972[30 Sept 1971] 44607/72 Heading H4R In an arrangement in which a message signal is rendered secret by masking it with a number of spaced echoes of the signal itself, the transmission ratios of successive echoes through a coder or decoder are according to Bessel functions Jk(x). A signal is applied at 3 to a coder 1 comprising a delay line 7-29 having taps 31-55, each of which taps is connected via a respective transmission network 34-56 and one of two amplifiers 57, 61 to the coder output, the amplifiers 57 and 61 having a positive and a negative amplification factor respectively, i.e. amplifier 61 provides an output which is inverted with respect to its input. The transmission circuits 34-56, which may be resistive networks, and the amplifiers are such that the signal paths 3-31-32-57-59 to 3-55-56-57-59 have transmission ratios acordding to Bessel functions Jk(x) where x = 4 and k runs from -6 to + 6 and takes the value - 6 for the first mentioned path and + 6 for the last mentioned path. In the decoder 63 the paths 65-91-92-117- 119 to 65-115-116-117-119 have transmission ratios which run in the reverse order to those in the coder. The delay elements 7-29, 67-89 may be formed by a magnetic tape along which pick-up heads are arranged at suitable distances. The use of the Bessel frunction transmission ratios is said to greatly reduce unwanted echoes in the output signal on line 119. Such a system may be used for coding and decoding video or audio signals, the delays introduced by delay elements 7-29 &c being chosen accordingly. Specification 1,016,284 is referred to.
Patent GB-1442678-A (GB)
Title: Apparatus for processing strip material
IPC: G03B27/46
Filed: 1973-09-24
Abstract: 1442678 Cutting webs AGFA-GEVAERT AG 24 Sept 1973 [22 Sept 1972 16 Jan 1973] 44639/73 Heading B8R Apparatus for cutting a photographic web 1 into individual pictures 1a, Fig. 1, along cutting lines 1b comprises a pair of feed rollers 8, 9 advancing the web towards cutting blades 6, 7 which are operated in response to an output signal being applied to an electro-magnet 23, Fig. 3, operating the blade 6, whereby the signal is emitted in consequence of photo-cells 2, 3 and 12, 13 sensing the marks 1c on the web and leading edge of the web, respectively, and gated by an AND-gate 21. In operation as the web is fed by the rollers and a mark 1c is detected by the cell 2, 3, a signal is applied to a counter 18 which is also fed with pulse signals from a device 19, 20 measuring the length of the picture. Coincidence of signals result in the emission of an output signal by the counter 18 and applying it to one input of the gate 21. The gate 21 is already provided with a signal at its second input, the signal being applied by cell 12, 13 scanning the leading edge. The gate 21 then applies a signal to a coupling magnet 24 to brake or strip the feed rollers 8, 9 and to the magnet 23 to actuate the blade 6. The magnet 23 concomittantly trips the flip-flop 22 to block the gate 21. A signal to the second input of the gate 21 is applied by the cell 12, 13 as soon as the leading edge is sensed thereby. A similar arrangement for sensing the end of an order is provided along the opposite edge of the web 1, cells 4, 5 and 16, 17 sensing marks 1d and leading edge, respectively, to enable an AND-gate 26 and actuate the coupling magnet to stop the motor. Other modifications of control circuits are shown in Figs. 3 to 5.
Patent GB-928989-A (GB)
Title: Improvements in and relating to knife-edge bearings
IPC: B65B1/32
Filed: 1961-03-29
Abstract: 928,989. Bearings. H. L. STOKER CO. March 29, 1961 [March 30, 1960], No. 44726/62. Divided out of 928,988. Class 12 (1). In a V-slot of a block 70 which receives a knife-edge bearing, a number of inserts 74, made of tungsten carbide for example, are placed in alternate order on faces 71, 72 of said slot and are secured by epoxy resin for example. The slot has an angle of 120 degrees and the knife edge has an angle of 60 degrees.
Patent GB-977858-A (GB)
Title: Improvements in or relating to the preparation of substantially pure titanium dioxide
IPC: C01G23/08
Filed: 1962-12-04
Abstract: Finely divided titanium dioxide in anatase form is prepared by mixing aqueous solutions of TiCl4, oxalic acid, and NH4Cl in proportions of 0.5-1.0 mol. oxalic acid and 0.75-3 mol. NH4Cl per mol.  TiCl4, removing the precipitated ammonium titanium chloride oxalate composition, and calcining this composition. Mixing may be effected at 30-80 DEG  C. by adding TiCl4 either to oxalic acid and then adding NH4Cl, or to a mixture of oxalic acid and NH4Cl. Calcining is carried out at 600-700 DEG  C. and the product may be ground and screened through a 0.149 mm. screen.  It has a density of 0.35-0.46 kg./litre, and may be used to form rutile single crystal boules by melting in an oxygen-hydrogen burner.
Patent GB-1093060-A (GB)
Title: Improvements in or relating to agricultural vehicles
IPC: A01D90/12
Filed: 1964-12-30
Abstract: 1,093,060. Agricultural pick-up vehicles. TEXAS INDUSTRIES Inc. Dec. 30, 1964 [Jan. 2, 1964 (2)], No. 45893/66. Divided out of 1,093,058. Heading B8E. The subject matter of this Specification is substantially the same as that described in Specification 1,093,057 but the claims differ.
Patent GB-1311957-A (GB)
Title: Stranding machine
IPC: D07B7/06
Filed: 1970-09-29
Abstract: 1311957 Supporting supply bobbins in stranding machines BARMAG BARMER MASCHINENFABRIK AG 29 Sept 1970 [18 Oct 1969] 46232/70 Heading D1T A supply bobbin 2 is rotatably mounted on a head 6, which is locked in position on a cradle 1 by a safety device comprising a rotatable disc-shaped bolt 10 engaging a recess 11 in the head 6, the bolt having a segmental cut-out such that on rotation by a key 21, the spool and head may be removed. To prevent removal of the key except when the spool is locked in place, firstly a lock plate 9 has a hole only permitting key removal when the bolt 10 is in the head-engaging position, and secondly, a plate 18 biassed by a spring 20 has a hole 19 engaging a groove 23 in the key in the absence of the head 6, and moved by insertion of the head to release the key.
Patent GB-1200634-A (GB)
Title: Holder unit for tools connected to flexible tubes and cables, more particularly flexible tube connected dentist's tools
Inventor: LUNDIN SVEN VILHELM EMANUEL
IPC: A61G15/16
Filed: 1967-10-10
Abstract: 1,200,634. Pipe support. S. V. E. LUNDIN. 10 Oct., 1967 [11 Oct., 1966], No. 46313/67. Heading F2P. [Also in Division A5] A holding unit for dental instruments e.g. drills and syringes, which are powered by compressed air or electricity comprises a housing 1 from which compressed air supply tubes 4 or electric cables (not shown) emerge through openings 9, supporting elements G, 7 for the instruments and helical springs 5 protruding from the housing for suspending and supporting the tubes or cables. A flange 6 and a plate 7 having notches 8 or undulating supporting wires (not shown) protrude from the housing and co-operate to receive the instruments in a position ready for use.
Patent GB-1243082-A (GB)
Title: Improvements relating to fluid-powered piston and cylinder units
Inventor: RESUGGAN HAROLD FREDERICK
IPC: B66F3/30
Filed: 1968-10-01
Abstract: 1,243,082. Hydraulic actuators. WEBLEY & SCOTT Ltd. Dec.5, 1968 [Oct. 1, 1968], No.46454/68. Heading F1P. [Also in Division B8] A hydraulic fluid powered piston and cylinder unit is provided with an annular groove 13 in the cylinder 11 accommodating a spring metal piston ring 20 of rectangular cross-section and having a split 29, which urges itself inwardly against the piston 21 to enter an annular recess 22 in the piston when this comes in register with the groove 13, the piston having a shoulder (e.g. the lower radial face of the recess 22) to engage the piston ring and thereby positively limit the piston stroke in one direction. The piston may have a diametral bore 30 housing a bar 31 having piston-ring engaging recesses 33 and connected to a valve 40 so as to relieve the pressure on the undersurface 23 of the piston at the end of the stroke, fluid escaping via the bore 30, the split 29 and at least one bore 14 in the cylinder wall covered by an elastic garter seal 17. The piston and cylinder unit may form part of a hydraulic lifting jack.
Patent GB-1288413-A (GB)
IPC: B64C27/04
Filed: 1969-09-22
Abstract: 1288413 Rotary wing aircraft GIRAVIONS DORAND 22 Sept 1969 [27 Sept 1968] 46532/69 Heading B7W A rotary wing aircraft comprises: a load suspended by a universal joint 4 from a non- rotatable part 9 of the rotor assembly, upon which part is borne the rotor hub; and mechanisms controlling collectively and cyclically the pitch of the rotor blades and tilting of the rotor disc, which mechanisms are arranged on that side of the universal joint remote from the load, so as to be unaffected by angular deflections of the load permitted by the universal joint. The aircraft shown is purely autorotative, the two blades 12, 12<SP>1</SP> of the rotor initially having a negative angle of attack causing the rotor 11 to rotate and weighted levers 47, 47<SP>1</SP> to move outwards against the force of springs 53, 53<SP>1</SP> and thereby, as the speed of rotor rotation increases, collectively increase blade pitch via rods 21, 21<SP>1</SP> and arms 20, 201 which are moved upwards by the pivoting of the levers 47, 471. To land, an altimetric probe (not shown) touches the ground while the aircraft descends and provides a signal which fires an explosive charge 39 to break a pin 38, which releases a non-rotating shaft 10 from engagement with a central tube 36A and allows the shaft 10 and clutch ring 41 of a programming device rotatably mounted on the shaft, to descend into engagement with a friction surface 40 of the rotor 11. This causes a worm 27 of the programming device to rotate cams 32, 33, 36 via helicoidally toothed gear wheels, e.g. 28. Cams 32, 33 respectively control the pitch of the blades 12, 12<SP>1</SP> and cam 36 controls tilting of the rotor disc, to provide a programmed landing. In another embodiment, Fig. 5 (not shown), the aircraft is a helicopter wherein the load is the cabin; control of the pitch of the blades cyclically and collectively and control of the tilting of the rotor disc is carried out from the cabin by electric or hydraulic jacks; and the jacks are mounted on the rotor hub.
Patent GB-1506013-A (GB)
Title: Apertured photosensitive screens in electrophotographic apparatus
IPC: G03G15/05
Filed: 1975-02-17
Abstract: 1506013 Cleaning electrophotographic screens CANON KK 17 Feb 1975 [25 Feb 1974 27 July 1974] 46552/77 Divided out of 1506011 Heading B6C In an electrophotographic apparatus of the kind in which a primary electrostatic latent image is formed on an apertured photosensitive screen and used to modulate a charged particle flow to form a secondary image on a receiving member, means are provided for applying a liquid, such as ethanol, methylethyl ketone, xylol or benzine, for cleaning dust from said screen. The liquid may be sprayed on to the screen and removed by a brush, an absorbent roller or by blowing air through the screen. Alternatively, the screen may be cleaned by contact with a cloth covered roller wetted with the liquid.
Patent GB-977057-A (GB)
Title: Toy gun
IPC: F41B7/02
Filed: 1963-11-26
Abstract: 977,057. Toy guns. H. J. ASHLEY. Nov. 26, 1963, No. 46583/63. Heading A6S. A toy pistol for firing rubber bands, or for firing an article by means of such bands, has a plurality of pins 4 of different lengths attached to a hand grip 1 protruding rearwardly of the barrel 7, means 15 on the barrel enabling elastic bands to be tensed between said means and one of the protruding pins, and trigger means producing relative movement between barrel 7 and pins 4 to withdraw the pins within the barrel and so release said bands. The stock 2 is provided with six notches 6 engaged by a somewhat resilient trigger 9 so that movement of said trigger from one notch to the next releases a rubber band. An alternative trigger design is described with reference to Fig. 7 in which the hand grip 1 and barrel 7 are one, and the pins 4 are withdrawn against a spring 17 by trigger 20. The rubber bands may be weighted by a pellet as shown in Fig. 11. A detachable bullet 24 is shown in Fig. 13, whereby the rubber bands are retained on hooks 23. Means are described with reference to Figs. 15 and 16 for similarly projecting an arrow 24a.
Patent GB-1395080-A (GB)
Title: Reagent mixing apparatus
IPC: B01F33/40
Filed: 1972-10-10
Abstract: 1395080 Agitating liquids COULTER ELECTRONICS INC 10 Oct 1972 [14 Oct 1971] 46661/72 Heading B1C In automatic chemical analysis, tubes 12 containing samples 16 to be agitated are moved successively by a conveyor 14 to a station below a cylinder 18 having top and bottom ports 21, 30 connectable through a valve 24 to a pressure air source 26 and a vent 34. A free piston 36 carries a hollow probe 38. In the inoperative position the piston may be retained at the top of the cylinder by adhesion of magnetic elements 20, 52. Admission of pressure air to port 21 while port 30 is vented lowers the probe 38 into the tube 12 while air passes through the probe to agitate the sample 16. The port 21 is then closed and pressure air admitted to port 30, raising the probe 38 out of the tube 12. Air in the cylinder is expelled through the probe, purging it, while its outside is dried by air from part 30 passing through chamber 48 and through the clearance 50. The valve 24 and conveyor 14 are controlled in synchronism by a programming device 54. The magnetic material of plug 20 and disc 52 may be rubber mixed with powdered iron.
Patent GB-955064-A (GB)
Title: Improvements in or relating to label magazines
IPC: B65C9/10
Filed: 1962-12-11
Abstract: 955,064. Feeding sheets. GEO. J. MEYER MANUFACTURING CO. Dec. 11, 1962 [Aug. 6, 1962], No. 46708/62. Heading B6B. A label magazine comprises a base member 21, a pair of parallel bars 27, 28, each rigidly secured at one end to the base member, at least two rigid, parallel supports 33, 36 secured to the bars, a plurality of prong carriers 37, 40 in the form of rails, extending between said supports and so mounted thereon as to be movable from a position of parallelism to positions of relative divergence, and means for attaching prongs to said prong carriers. The supports 33-36 are adjustable longitudinally of the bars 27, 28 and the prong carriers 37-10 are slidably mounted in slots T in the supports. The prongs P have the usual lips at their lower edges to support a stack of labels. Each bar consists of two spaced apart members 29 and 30, which are received in grooves in the upper surfaces of the supports. Bolts are passed through flanged caps seated on top of the bars and screwed into the supports, to secure the latter in position. Each prong carrier consists of two pairs of rails 41, 42, and 43, 44, said pairs engaging the upper and lower surfaces of the appropriate supports, respectively, and attached thereto by bolts passing through the slots T, Fig. 4 (not shown). Each prong P is fixed to a holder 101 by a flanged bolt 104. The holder is slidably mounted between said rails 41-44 and held in the desired position by a bolt 108 passing through flanged caps 35a, 35c and an aperture in the holder 101. Each support has an inverted U-shaped bracket 52 fixed to its upper side in which a rod 55 slides. The rod carries one or more prongs and is located by a screw passing through the bracket. The prongs may be spaced from the carriers, and are profiled according to the shape of the labels to be held. For example the labels may be elliptical, quadrilateral or heart-shaped. As shown in Fig. 1, two stacks of blanks are mounted side-by-side.
Patent GB-1021826-A (GB)
Title: Improvements in or relating to a device for modifying the form or pattern of a stream of liquid discharged therefrom
IPC: B05B1/16
Filed: 1962-12-11
Abstract: 1,021,826. Spray - producers. KARRIER WEBER & CIE A.G. ARMATURENFABRIK UND METALLGIESSEREI. Dec. 11, 1962 [Dec. 14, 1961], No. 46713/63. Heading B2F. [Also in Division F2] In a water spray and jet regulator, the aerated jet is formed by the water inlet from passageway 3 which passes through tubular metal filter 13 and holes 6a and mixes with air drawn by the suction thereof through annular openings 16b before discharging through a screen 17. The outlet at 17 is valved upon axial movement of closure member 11 on spindle 7 to engage valve seat 15b whereupon the water is diverted via the passageway 14a to issue as a spray from openings 16b. The valve spindle 7 slides in upper and lower bearings 5 and 6 respectively and seals within the former by an O-ring 9 carried within a groove on spindle 7 and seating against shoulder 89 of the bearing in the open position of the valve. The casing 1, integral handle 2 and the control knob 10 are of plastics.
Patent GB-1515198-A (GB)
Title: Slide projector adapters
IPC: G03B23/12
Filed: 1975-11-13
Abstract: 1515198 Projectors GNOME PHOTOGRAPHIC PRODUCTS Ltd 14 Feb 1977 [13 Nov 1975] 46836/75 Heading G2J A slide projector adaptor 7 comprises a unit with means whereby it may be mounted on a slide projector in place of the existing objective lens, and incorporating a condenser 15, a slide gate 16 and an objective lens 25. The slides may be mounted on a carrier for sequential projection, either in two rows or in a circle. It is stated that slides may also be stack- or magazine-loaded.
Patent GB-1246311-A (GB)
Title: Photographic materials
Inventor: TUITES RICHARD CLARENCE
IPC: C08F8/34
Filed: 1968-10-03
Abstract: 1,246,311. Polymers containing thiazole groups. EASTMAN KODAK CO. 3 Oct., 1968 [9 Oct., 1967], No. 46898/68. Headings C3P and C3R. [Also in Divisions C2 and G2] Polymers containing at least 30% by weight of thiazole groups are used as antifoggants in photographic materials (see Division G2). The following preparations of thiazole-containing polymers are illustrated:- (a) 2,4 - Diamino - 5 - phenylthiazole monohydrobromide is polycondensed with adipyl chloride in dimethylformamide to yield a polymer having repeating units of the formula (b) Copoly(ethylene-maleic anhydride) is reacted with 2-aminobenzothiazole to introduce pendent benzothiazolylaminoacyl groups. (c) Reaction (b) is repeated using poly(acrylic anhydride) as the starting polymer instead of the maleic anhydride copolymer. (d) Reactions (b) and (c) are repeated using 2-mercapto-6-aminobenzothiazole instead of the 2-aminobenzothiazole. (e) Reaction (c) is repeated using 2-aminothiazole instead of the 2-aminobenzothiazole. (f) Reaction (e) is repeated using copoly- (styrenemaleic anhydride) instead of the poly- (acrylic anhydride). (g) Reaction (b) is repeated using 2-amino-4- (4-diphenylyl)-thiazole instead of the 2-aminobenzothiazole. (h) Vinyl acetate is polymerized, then hydrolysed to polyvinyl alcohol which is treated with chloroacetic anhydride to yield polyvinyl chloroacetate, and the latter is reacted with 2- mercaptobenzothiazole to introduce pendent benzothiazolylmercapto-acetate groups. (i) Copoly(ethylene-maleic anhydride) is re. acted with 2-mercaptobenzothiazole or 2-mercapto-6-nitrobenzothiazole to introduce pendent (nitro)benzothiazplylmercapto-acyl groups. (j) Low molecular weight, 2-mercaptoethanolterminated polyphenyl acrylate is reacted with 2-aminothiazole to convert the phenyl ester groups to thiazolylaminoacyl groups. (k) Reaction (j) is repeated using 2-aminobenzothiazole instead of the 2-arninothiazole. (1) N - Vinyl - N<SP>1</SP> - benzothiazol - 2 - yl - urea is polymerized in refluxing acetone using 2,2<SP>1</SP>- azobis (2-methylpropionitrile) as catalyst.
Patent GB-1455160-A (GB)
Title: Calculator
IPC: G06F9/00
Filed: 1974-11-07
Abstract: 1455160 Electronic calculators HEWLETTPACKARD CO 7 Nov 1974 [26 Nov 1973] 48228/74 Heading G4A In programmable electronic calculator 10 comprising a keyboard 12 including userdefinable function keys A-E, switching on of the calculator causes programs corresponding to the user-definable function keys to be loaded into a read-write memory 20. The programs stored in memory 20 may be replaced by programs entered from the keyboard or from an auxiliary device, e.g. a magnetic card reader, during a " program " mode. A preprogramming routine stored in a ROM 16 loads the codes of pre-specified functions available by operation of a prefix key followed by another, e.g. digit, key into the memory 20 each time the calculator is switched on. Alternatively, the preprogramming routine may write other functions, which may not be accessible from the keyboard, into memory 20, and manual reprogramming would be necessary to obtain the marked functions for keys A-E. The read-write memory 20 may alternatively be pre-programmed by incorporating therein a ROM or by using memory elements which turn on in a preferential state, i.e. 1 or 0.
Patent GB-1223827-A (GB)
Title: Checking means for automatic work piece orientation in bevel gear cutting machines
IPC: B23F23/06
Filed: 1969-10-01
Abstract: 1,223,827. Gear cutting. GLEASON WORKS. 1 Oct., 1969 [1 Oct., 1968], No. 48236/69. Heading B3K. A device provided in a gear cutting machine for checking that a previously cut workpiece 408 is properly oriented and fully seated on a work spindle, e.g. for finish cutting, comprises a pivotal arm 404 having an air passage 412 and port 413 adapted to be blocked by the workpiece if properly disposed. The arm 404 carries a projecting element 410 arranged to enter a previously cut groove so that if the workpiece is correctly oriented and fully seated on the work spindle the port 413 is blocked by a heel portion 414 of the workpiece and pressure builds up in the passage 412 to operate a pressure-sensitive switch 430 controlling the operation of the machine through a motor 434. The arm 404 may be moved into its operative checking position by an hydraulic cylinder and piston 418, 416 and retracted by spring-loaded means 420, 422 in suitably timed relation with the operation of the machine.