baber/WOPTO huggingface dataset:
Patent GB-1073857-A (GB)
Title: Digital divider circuit
IPC: G06F7/52
Filed: 1965-07-30
Abstract: 1,073,857. Dividers. INTERNATIONAL BUSINESS MACHINES CORPORATION. July 30; 1965 [Oct.. 29, 1964], No. 32603/65. Heading G4A. A divider circuit has at least two stages, each stage generating one quotient bit in each Iteration, the first stage comprising an addersubtractor 12 which is connected to an adder 18 and a subtracter 20 in the second stage which produces two possible partial remainders, the divisor being applied to the adder-subtracter, the adder and the subtractor. Referring to Fig. 1, in the first iteration serial divisor and dividend (sign bit last) are applied to terminals 10, 15, the divisor being added to and subtracted from the dividend (doubled by a 1-bit delay 16) in the adder 18 and subtractor 20 respectively, the result being stored in delay lines 40, 42 respectively. An EXCL-OR circuit 22 compares the sign bits of the divisor and dividend to control a flip-flop 26 which (a) selects one of the two possible remainders produced by adder 18 and subtractor 20 to take part in the next iteration, (b) selects one of the two possible remainders to have its sign bit compared with that of the divisor (at 70, 72) to control a flip-flop 84, and (c) provides the first quotient bit (1 if the signs were unlike) which is gated into a recirculating delay line 104. The flip-flop 84 provides the second quotient bit (1 if the signs were alike) for the delay line 104, and causes the adder-subtracter 12 to add or subtract in the next iteration according as the signs were unlike or alike respectively. During the second iteration, the divisor, reconstituted by a subtracter 60 fed by the " possible remainder " delay lines 40, 42, is fed to the adder-subtractor 12 to be added to or subtracted from twice the selected remainder from the first iteration, obtained via a 2-bit delay 50. The sign of the result is compared at 22 with that of the divisor to control flip-flop 26 which performs as before except that the quotient bit entered into the delay line 104 is 1 if the signs are alike. The adder-subtractor output is also fed to the adder 18 and subtractor 20, as is the divisor, to produce two possible remainders as before. Operation is then as before, subsequent iterations being like the second. Fig. 2 (not shown) shows a modification which produces three quotient per iteration, the adder 18 and subtractor 20 of Fig. 1 each feeding an adder and a subtracter in the same way that the adder-subtractor 12 of Fig. 1 fed adder 18 and subtractor 20. The tree of adders and subtractors may be further extended.
Patent GB-840018-A (GB)
Title: Driving device for hand-operated adding and like business machines
Filed: 1958-10-13
Abstract: 840,018. Calculating-machines. OLIVETTI & C. S.p.A., Ing. C. Oct. 13, 1958 [Oct. 15, 1957], No. 32606/58. Class 106 (1). The oscillating handle of a hand-operated calculating or like machine is uncoupled from the main operating shaft during its forward stroke, during which a spring is tensioned which on completion of that stroke drives the main operating shaft at a speed independent of the speed of actuation of the handle. The handle 3, on being moved clockwise rotates a sector 12 counter-clockwise through a hook 8 which engages a stud 11 in the sector. A spring 15 is thus tensioned and a pinion 17 rotatable on the main operating shaft 18 is rotated through one revolution. At the end of the clockwise stroke of the handle 3, a slide 25 is moved from the path of an arm 24 on the shaft 18 and a lug 14 depresses the hook 8 so as to free the sector 12 for return movement during which it drives the pinion 17 counterclockwise. The pinion 17 is arranged, by means of a tooth 23 co-operating with a hole in a disc 20 fast on the shaft 18, to drive the latter but only when rotated in the counterclockwise direction. Thus, its initial movement is idle but the return movement under the action of the spring 15 is effective to rotate the shaft 18 which is freed by the slide 25 and then arrested after one revolution by that slide which is restored to the position shown by the sector 12. The handle in this embodiment has its own return spring 9 but in a modification is permanently coupled to the sector 12 by a link. The sector 12 may also drive through a oneway clutch device a centrifugal brake 37 which is effective during the return (driving) stroke of the sector 12.
Patent GB-326279-A (GB)
Abstract: 326,279. Carborundum Co., Ltd., (Carborundum Co.). Jan. 1, 1929. Refractory substances containing crystalline alumina.-Refractories, having a crystalline structure, e.g. fused alumina are rendered more resistant to spalling by bonding with another material having an interlocking crystalline structure and which preferably possesses a coefficient of expansion approximately the same as that of the bonded material. Calcium titanium oxide, magnesium titanium oxide and mixtures of magnesium oxide and calcium fluoride or magnesia, lime and silica are given as examples of bonding materials for fused alumina. In an example, refractory pieces consisting of 95 per cent fused alumina bonded with 5 per cent Ca TiO3 (perovskite), and burned to 1450‹ C. lose less than 20 per cent of their weight afteralternately heating to 1350‹ C. and quenching in an air blast twenty times.
Patent GB-490886-A (GB)
Title: Control device with pre-determined successive positions
IPC: F15B11/12
Filed: 1937-11-26
Abstract: 490,886. Hydraulic apparatus. SERVO-FREIN DEWANDRE SOC. ANON. Nov. 26, 1937, No. 32650. Convention date, Nov. 27, 1936. [Class 69 (ii)] [Also in Groups XXVIII and XXIV] A power actuator comprises a rod 9 connected to the part to be actuated, oppositely toothed on two sides, and connected to a piston 8 by which it is moved under the influence of fluid under pressure supplied through an inlet 36. This fluid also enters a conduit 26 and raises a piston 17 through which the rod passes, and with it a pawl 20 which engages and is pushed back by one of the lower teeth 10 until a corresponding upper tooth 11 arrives opposite a locking member 32. Movement in either direction is thus prevented. By interrupting the fluid supply, the pawl 20 is released, whereupon further supply of fluid will cause a further movement to the extent of one tooth. By interrupting the fluid supply through the inlet 36 and supplying fluid through an inlet 37, the detent 32 is released by raising a piston 28, and a spring 13 returns the rod to its initial position.
Patent GB-379159-A (GB)
Title: Searchlight reflector
IPC: F21V7/04
Filed: 1931-11-25
Abstract: 379,159. Searchlight reflectors. MANNHEIMER, M., 29, Soorstrasse, Charlottenburg, Berlin. Nov. 25, 1931, No. 32710. [Class 75 (ii).] A searchlight reflector comprises a plurality of adjustably mounted relatively small spherical facets adapted to receive rays directly from an electric arc or other light source and reflect them in any desired direction. The facets may be adjusted to produce a substantially parallel beam of minimum divergence, a flat beam, or a divided beam, or so that the individual projections form a sign or picture upon a cloud, mountain side, or other remote screen. They may be made of heat-resisting glass and of polygonal form so as to reduce the gaps between them. The left-hand side of Fig. 1 shows a number of facets 2 of equal focal length and aperture, the inclination of the facets with respect to a spherical segment 3, and their distance inwardly from this segment, increasing outwardly from a central facet 2a having its focus 6 coinciding with the crater of a direct current arc lamp 1. The right-hand side of Fig. 1 shows the outer facets arranged on a paraboloid 4, the focal length of the facets increasing outwardly. Fig. 2 shows a similar arrangement of a smaller number of facets which decrease in size outwardly, each facet being mounted on a universal joint 5 and adjusted about two axes at right-angles by means of micrometer screws 8.
Patent GB-927023-A (GB)
Title: Base fuze for projectiles
IPC: F42C15/24
Filed: 1961-09-12
Abstract: 927,023. Projectile fuzes. ANSTALT FUR DIE ENTWICKLUNG VON ERFINDUNGEN UND GEWERBLICHEN ANWENDUNGEN ENERGA. Sept. 12, 1961 [Oct. 29, 1960], No. 32738/61. Class 9 (1). A base fuze for projectiles, particularly rockets and rifle grenades, comprises a casing 1, a percussive member 2 with striker 3 and two inertia operated sleeves 8 and 12. On firing the projectile, the inner sleeve 8 sets back against the action of a spring 9 to free passages 11 within which balls 10 are located and is locked on reaching its rearmost position by further balls 15 which move partially out of an annular groove 14 to engage behind a shoulder 16. The outer sleeve 12 has a chamfer at 13 which bears on the balls 10. When the passages 11 are freed the sleeve 12 also sets back, forcing the balls into the interior of the percussive member 2 thereby arming the fuze. On impact, the percussive member 2 sets forward by momentum against the action of a spring 20 and striker 3 detonates a primer 17. Apertures 4, 6 and 22 are provided to obviate compressed-air braking effects. According to the invention the fuze provides safety in handling and transport since no movement of the parts is possible if the projectile is dropped on its nose and when dropped on its base the balls 10 are either not released because movement of sleeve 8 is too limited, or when released produce a hammering action on the sleeve to prevent its moving forward.
Patent GB-1362224-A (GB)
Title: Tide indicating timepiece
IPC: G04B19/26
Filed: 1971-07-13
Abstract: 1362224 Tide indicating timepieces HIGHLAND LABORATORIES 13 July 1971 [20 July 1970] 32752/71 Heading G3T A timepiece is provided with means to indicate the time periods to the next high and low tides. A conventional mechanism 13 drives second, minute and hour shafts 16, 17, 15 with hands 18, 19, 28 associated with a 12-hour time scale 31 on face 32. Fixed to the hour shaft 15 is a transparent gear disc 23 which freely supports an annular gear 22. The gear 22 is retained on the disc 23 by flanges 26, 27 and carries a tide indicating scale 33 which is visible through the disc 23 and which is associated with stationary high and low tide pointers 34, 35 on face 32. The length of the inner periphery of gear 22 is substantially 1À035 times that of the outer periphery of the disc so that frictional engagement of the two peripheral surfaces occurs only at the top and the gear 22 rotates once every 12À420 hours. 12À420 hours is stated to be the average period between high tides and pointers 34, 35 with tide scale 33, upon which zero coincides with 12À420, indicate the time periods to the next high and low tides. In a second embodiment, Figs.3 and 4 (not shown), the tide time indicating scale (63) is stationary on the face (62) of the timepiece and the tide pointers (64, 65) move with the annular gear (52). The timepiece may be of the 24-hour type and the hands 18, 19, 28 may be omitted.
Patent GB-1401638-A (GB)
Title: Ingot castig apparatus
IPC: B22D5/04
Filed: 1972-07-13
Abstract: 1401638 Casting machines HARRIS-ECONOMY Ltd 9 July 1973 [13 July 1972] 32820/72 Heading B3F A casting apparatus comprises an endless conveyer 1 passing around a pair of horizontally spaced sprocket devices, a plurality of moulds 7 carried by the conveyer, a drum 11 associated with one of the sprocket devices 3, and means for rotating the drum 11 in the opposite sense to and at the same peripheral speed as the said one sprocket device. The drum 11 may have six ingot receiving surfaces 27, a wall 29 being provided at the leading edge of each surface. As each mould passes around the sprocket wheel 3 the ingot 2 is retained therein by a plate 9 until the mould reaches a position about 30 degrees before the bottom dead centre position of the sprocket wheel. The ingot then falls from its mould on to one of the surfaces 27 of the drum 11 which continues to rotate in a clockwise direction so as to deposit the ingots on a conveyer 37. The ingots are prevented from falling off the drum 11 prematurely by an arm 31 pivoted about an axis 33 and urged towards the drum by a spring 35. A device 30 may be provided for determining whether any ingots have failed to drop from their moulds.
Patent GB-447329-A (GB)
Title: Improvements in or relating to shoe heels
IPC: A43B21/00
Filed: 1934-11-15
Abstract: 447,329. Heels for boots and shoes ; cutting-apparatus. BRITISH UNITED SHOE MACHINERY CO., Ltd., and BARCLAY, W. R., Belgrave Road, Leicester. Nov. 15, 1934, No. 32853. [Class 17 (ii)] [See also Group VIII] A heel built up from a plurality of superposed lifts the majority of which are of pulp or other like board has a heel seat lift of wood sheeting, preferably of thin three ply-wood with the grain of the upper and lower plies running in the direction of the length of the shoe. The heel has a sole-end receiving groove formed transversely of its breast face. This may be of tapered cross-section and formed in the seat lift, for example by a machine as described in Specification 412,599. The seat lifts are preferably cut by a knife having a hollow-ground cutting edge portion 9, Fig. 4. After assembling the leather lifts 3 and pulp or other board lifts 7 with a seat lift 5, the whole are fastened together and compressed. The top piece 1 is then secured and a second compression is applied during which the lift 5 receives a concave form. The heel is then trimmed substantially to final shape as by the trimming machine described in Specification 412,599 and scoured. After attachment to the shoe, the heel may be finished to any desired colour by stain or paint, and polished. The seat lift may be ornamented by a seat wheeling operation. Specification 283,022, [Class 17 (ii)], also is referred to.
Patent GB-858999-A (GB)
Title: Improvements in and relating to draughting machine heads
IPC: B43L13/08
Filed: 1959-09-28
Abstract: 858,999. Draughting machines. MECHANIKA NARODNY PODNIK. Sept. 28, 1959 [Sept. 29, 1958], No. 32925/59. Class 97(3) In a drawing head capable of rotation through 360 degrees, a scale 8 notched disc 14 and a bearing 19 are rigid with a support 9 attached to the parallel motion mechanism of the draughting machine, the bearing 19 pivotally carrying a shaft 15 which is rigid with a rule support 18 and a plate 13, and a push button 2 is provided which is axially slidable on the shaft 15 against the action of a spring 11 to actuate a lever 5 so that a pawl 6, which is pivoted at 21 to the plate 13, is moved out of engagement with the notched disc 14. To hold the rules in intermediate positions, a brake lever 3 may be rotated so that a nut 17 on the lever 3 raises a threaded member 16 and thus presses a resilient brake plate 4 against the notched disc 14. The enclosing handle 1 is connected to the plate 13.
Patent GB-657547-A (GB)
Title: Improvements in or relating to processes of preparing artificial resins and the artificial resins resulting from said processes
IPC: C08F222/16
Filed: 1947-12-15
Abstract: Copolymers are produced by mass polymeriing a mixture comprising an unsubstituted or nuclearly-substituted styrene, an ethylene a -b -dicarboxylic acid anhydride and a methyl, ethyl or n-propyl half ester of an ethylene a -b  dicarboxylic acid, the sum of the mol. proportions of dicarboxylic components being substantially equal to the mol. proportion of the styrene, and the mol. ratio of half ester to anhydride not exceeding 1.5 to 1. Specified substituted styrenes are p-chlorostyrene and p-methyl styrene.  Suitable dicarboxylic acids are maleic, phenyl-, benzyl-, ethyl- and chlormaleic and citraconic acids.  The anhydride is preferably of the same acid as that of the half ester.  In an example, maleic anhydride is partially esterified with methanol and the mixture copolymerized with styrene in the presence of di-tert.-butyl peroxide and betanitro styrene (to reduce the reaction rate and molecular weight of the product). The product dissolves in alkali to form the polymer salt, solutions of which are useful as sizes, emulsifying agents, detergents, cements and in pigmented finishes.  Specification 650,838 is referred to.
Patent GB-331002-A (GB)
Abstract: 331,002. British Thomson-Houston Co., Ltd., and Warner, H. T. April 3, 1929. Magneto - electric machines. - A magneto contact-breaker has the movable contact 3 on the spring blade 4 normally held apart from the adjustable fixed contact 8 by a pivoted pawl 6 biased by a spring 7 to the position shown in Fig. 1. These parts are carried by the condenser end - plate 5 secured to the rotating armature and a fixed cam 1 projects laterally from the end of the machine casing 2 so that as the pawl reaches the cam it is drawn aside allowing the contacts 3, 8 to come into engagement (Fig. 2). As the pawl reaches the end of the cam it is suddenly released, quickly opening the contacts, and thus a rapid current break is produced irrespective of the speed of the magneto. The armature may, alternatively, be stationary and the cam rotate, or in a further modification the cam may be secured to the field magnets which are adjustable relatively to the machine frame.
Patent GB-393278-A (GB)
Title: Improvements in apparatus for playing indoor games of chance
IPC: G07C15/00
Filed: 1931-11-30
Abstract: 393,278. Games of chance. BURN, L., Sunnybank, Morden Road, London. Nov. 30, 1931, No. 33102. [Class 132 (ii).] Balls or discs within a container are mixed by rotating a shaft in one direction and a predetermined number are delivered or exposed when the shaft is turned in the opposite direction. In the form shown in Figs. 1 and 2, a drum A contains balls F and is rotated by a handle D in a clockwise direction to mix the balls. If the handle is given an anticlockwise movement, a pawl M is rocked by a lever N to turn fingers G carried by a shaft H and normally pressed by springs J to cover openings in the drum. When the fingers turn they allow one ball only to pass through each hole and run down an incline L. The interior of the drum is provided with division plates R. Instead of being delivered, the balls may be merely exposed through the openings. In another form, Fig. 4, the drum has interior guide plates so shaped that when the drum is turned about its axis b in a clockwise direction the balls will be mixed, but if the drum is turned anticlockwise they will be delivered through the opening shown.
Patent GB-1223867-A (GB)
Title: Article-handling apparatus
IPC: B65G47/50
Filed: 1968-07-11
Abstract: 1,223,867. Selecting records. SPERRY RAND CORP. 11 July, 1968 [16 Oct., 1967], No. 33102/68. Heading G4M. The disclosure is identical with that of Specification 1,223,866, but the claims are directed to the arrangement for preventing access to a retrieved container unless it is the one the operator currently wishes to withdraw a record from or insert a record in.
Patent GB-797019-A (GB)
Title: Improvements relating to aircraft
IPC: B64C29/00
Filed: 1955-11-18
Abstract: 797,019. Convertible aircraft. MIGNOT, G. L. G. M. Nov. 18, 1955 [Nov. 30, 1954], No. 33121/55. Class 4. An aircraft which may be convertible from vertical flight as a helicopter to forward flight as a normal aircraft comprises a fuselage 1 and a propeller 2 for forward flight along the axis XX. The fuselage carries a tiltable rotary disc 3 which, as shown in Fig. 7, supports a plurality of blades 4 each having a cylindrical end 8 mounted for radial movement in a tubular housing 7. Each end 8 has a pivotal connection 9 with a rod 11 which at its other end carries a piston 12 housed within a cylinder 13. The rods 11 are arranged in vertically overlapping rela. tionship and the blades 4 are extended or retracted by admission of compressed air to the appropriate ends of cylinders 13. An antitorque tail rotor 5 is provided. For take-off the blades 4 are extended as shown in Fig. 1 and the aircraft takes off substantially vertically as a helicopter, though the direction of thrust of the rotor may be inclined by tilting of disc 3. At a selected altitude power from the single engine (not shown) is transferred from the lifting rotor to the propeller 2 and the blades 4 are retracted so that the disc 3 acts as a conventional lifting aerofoil. To reduce resistance during vertical ascent the disc 3 may be provided with apertures closed by flaps in forward flight.
Patent GB-338341-A (GB)
Title: Improvements in or relating to control valves for high-pressure hydraulic engines
IPC: F16K39/02
Filed: 1929-11-01
Abstract: 338,341. Triggs, W. W., (Schloemann Akt.-Ges.). Nov. 1, 1929. Multiple-way lift valves ; closure members.-In a control valve device for high pressure hydraulic engines, the main valves 5, 6 are provided with extensions guided in cylindrical guides 7, 8 and are balanced by pilot valves 13, 14 seating in them, which pilot valves are themselves balanced in virtue of the equal diameters of their spindles 15, 16 where they pass through the casing at both ends. The pilot valves are hand actuated bv a lever and rocking device 4, 10, 11, and the clearance spaces 20 between the. valve extensions and their cylindrical guides permit the entry of fluid pressure to the back of the main valves. Pressure fluid enters through the pipe 1, and passes to the hydraulic engine through the pipe 2 and to exhaust through the pipe 3. Springs 18 effect the closing of the valves and the arrangement allows of accurate and quick adjustment by hand of the flow of fluid.
Patent GB-455538-A (GB)
Title: Improvements in or relating to latex-compositions
IPC: C08L7/02
Filed: 1935-12-02
Abstract: Adhesive latex compositions are made by compounding at 50-70 DEG  C., rubber latex, preferably of 60 per cent rubber content, with a concentrated solution of resinous matter in an organic solvent, e.g. benzol, benzene or trichlorethylene.  The concentration of the solution is at least 50 per cent, preferably 60 per cent.  The resinous matter may be rosin, ester gum, synthetic resin or resinified or oxidized rubber.  When the latex is stabilized by casein, lime hydrate may be dissolved or dispersed in the resinous solution in amount sufficient to convert the casein to insoluble calcium caseinate.  Rubber compounding ingredients and fillers may be added.  If cork dust is added, the composition may form a linoleum cement.  In an example 21 lbs. of ester gum and 8 lbs. of cumarone resin of melting point 125 DEG  C. are dissolved in 17 lbs. of benzol and 17 lbs. of trichlorethylene and brought to an end weight of 88 lbs.  Three pounds of the solution are mixed with 3--4 per cent of lime hydrate, warmed to 60 DEG  C., and mixed with 8 lbs. of 60 per cent latex stabilized with 1\ba1/2\be lbs. of 10--20 per cent casein solution.  During mixing the batch is warmed to 60 DEG  C.  The mixture may be thinned with 2--4 lbs. of warm water to a suitable consistency.ALSO:Adhesive latex compositions are made by compounding at 50-70 DEG  C., rubber latex, preferably of 60 per cent rubber content, with a concentrated solution of resinous matter in an organic solvent, e.g. benzol, benzene or trichlorethylene.  The concentration of the solution is at least 50 per cent, preferably 60 per cent.  The resinous matter may be rosin, ester gum, synthetic resin or resinified or oxidized rubber.  When the latex is stabilized by casein, lime hydrate may be dissolved or dispersed in the resinous solution in amount sufficient to convert the casein to insoluble calcium caseinate.  Rubber compounding ingredients and fillers may be added.  If cork dust is added, the composition may form a linoleum cement.  In an example 21 lbs. of ester gum and 8 lbs. of cumaron resin of melting point 125 DEG  C., are dissolved in 17 lbs. of benzol and 17 lbs. of trichlorethylene and brought to an end weight of 88 lbs.  Three pounds of the solution are mixed with 3-4 per cent of lime hydrate, warmed to 60 DEG  C. and mixed with 8 lbs. of 60 per cent latex stabilized with 1 1/2 lbs. of 10-20 per cent casein solution.  During mixing the batch is warmed to 60 DEG  C.  The mixture may be thinned with 2-4 lbs. of warm water to a suitable consistency.