baber/WOPTO huggingface dataset:
Patent GB-724172-A (GB)
Title: Improvements in or relating to electronic counting circuits
Inventor: THOMAS GRAHAM ISAAC
IPC: H03K23/82
Filed: 1951-05-15
Abstract: 724,172. Pulse circuits. NATIONAL RESEARCH DEVELOPMENT. May 15, 1951 [May 17, 1950], No. 12344/50. Class 40 (6). [Also in Group XIX]. In, a pulse counting circuit of the type in which a series of trigger circuits are respectively triggered in accordance with the change of condition of other trigger circuits of the series which change is brought about by the application of the pulses to be counted. to the first trigger circuit, the counting speed is increased by supplying the input pulses directly to at least one of the trigger circuits, other than the first, by way of a gating circuit which is itself controlled by the condition of one or more of the preceding trigger circuits. Fig. 1 shows a binary counting chain comprising a chain of trigger circuits TC1-TC4 which each comprise a conventional two stable state divider circuit the source of pulses S to be counted being applied directly to trigger the first stage TC1. The pulse source S is also applied to a conventional gating or coincidence circuit G1 which only passes a pulse through to trigger the next stage TC2 when stage TC1 has been triggered from the " 0 " to the " 1 " representing condition. Similarly a pulse from gate G1 is only transmitted through gate G2 to trigger stage TC3 when stage TC2 is in the " 1 " representing condition and gates G3 and G4 are controlled likewise. If the speed of operation of trigger circuit TC1 is so rapid that gate G1 might open before the first pulse from the source has terminated a delay circuit DL1 may be introduced to delay the opening of the gate until this first pulse has terminated. Delay circuits DL2-DL4 function in a similar manner. Since each stage whenever triggered is controlled directly by the input pulse from source S the only delay in the application of the pulse to the appropriate trigger circuit is that occasioned by the passage of the pulse through the associated gating circuits. Fig. 3 shows a single stage of a binary counter such as shown in Fig. 1 in which the cross-coupled valves V2, V3 form a trigger-pair circuit which is triggered by negative-going pulses applied to the amplifying valve V1 by differentiation in circuit R1, C1 of the pulses at the input terminal T; the valves V1, V2, V3 sharing a common anode load resistor R2.. The output pulses from the valves V2 and V3 are taken off via cathode-follower stages CF1, CF2, those from the latter stage being applied to a gating circuit comprising diodes D1, D2. An output pulse is produced from the gate only when a negative voltage is applied to both diode anodes simultaneously which can occur only when the trigger circuit V2, V3 is in the " 1 " representing condition. Figure 4 shows the application to a decimal counter circuit, the units TCC1, TCC2 representing two successive decade counter stages each comprising a number of trigger circuits interconnected to give a count of 10 and the gates G1 and G2 are opened only when the associated decade stage is in the state corresponding to the digit " 9."
Patent GB-598317-A (GB)
Title: Improvements in or relating to apparatus for controlling hydraulic or pneumatic mechanisms
IPC: F15B11/12
Filed: 1945-05-16
Abstract: 598,317. Pneumatic apparatus. SUMMERS, K. E., and NEWALL ENGINEERING CO., Ltd. May 16, 1945, No. 12354. [Class 8 (ii.)] [Also in Groups XXIII and XXIX] In an apparatus for controlling pneumaticallyactuated mechanisms for operating machine tools &c., a pneumatically-operated actuating valve controls the supply of working fluid to the mechanism, the valve moving from an initial stationary setting in which it interrupts the supply of fluid to the mechanism, through a momentary setting in which it allows a flow of fluid to effect a small movement of the mechanism, to a stationary setting in which it again interrupts the supply. The mechanism 13 is supplied with fluid from a throttle valve 25, through a conduit 24, valve casing 16 and conduit 15. The casing 16 houses a valve 17 in a cylinder 18 connected by conduits 28, 29 to a valve 30 through which each conduit is connected to pressure and exhaust alternately. As the valve 17 moves from one end of its cylinder to the other, the passages 22 and 23 are momentarily put into communication with each other so that a supply of working fluid is able to flow to effect a movement of the mechanism 13. The valve 25 can be replaced by a spring-loaded byepass valve. The valve 17 can be replaced by a rotary valve actuated by a fluid-operated or electrical or mechanical relay.
Patent GB-828399-A (GB)
Title: Hypodermic syringe
IPC: A61M5/24
Filed: 1958-04-18
Abstract: 828,399. Hypodermic syringes. SCANDINAVIAN AMPIN A.B. April 18, 1958 [June 18, 1957], No. 12367/58, Class 81 (2). A hypodermic injection appliance comprises a body formed as two telescopic parts enclosing a frangible ampoule, containing medicament under pressure and connected to a needle, arranged so that when the two parts are pressed together the needle is made to protrude and the neck of the ampoule is broken. In the form described the two parts 1, 3 of the casing are normally held extended by projections 8, 9 with the tip of the needle 16 located in a recess 18. The needle is held in a support 7, which is connected, through a flexible tube 12 with the neck 11 of the ampoule 5. When the parts are pressed together the lower end of the inner part 3 forces the holder 7 and needle 16 downwards, so that the latter pierces the thin wall 19. Towards the end of the movement a rod 17 tilts a collar 13, placed around the neck of the ampoule, which is thereby broken, so that the medicament passes out through a filter 15 to the needle.
Patent GB-691603-A (GB)
Title: Improvements in or relating to carbon transfer sets
IPC: B41J17/00
Filed: 1950-05-18
Abstract: 691,603. Carbon sheet holders. ENGLAND, H. M. Aug. 16, 1951. [May 18, 1950] No. 12439/50. Class 16. A manifold carton transfer device comprises a flexible backing sheet 10 having adjacent one end a plurality of pockets 16 disposed in adjacent relation along each lateral boundary of the sheet 10 and a plurality of flexible strips 18 detachably engaging with their opposite ends in oppositely disposed pockets, each strip having a carbon sheet 19 detachably secured thereto, as by folding or looping. Stop members 11 are provided on the sheet 10 and are bored to receive two rods 12, 13, rod 12 being contained within the folded over end 14 of the sheet 10. Rods 12 and 13 form a guide for stationery 15. The pockets 16 are formed by folding in the edges of sheet 10 and defining the pockets by means of stitches 17 or by other suitable means such as by adhesion. A stiffening strip 20 may be provided between the pockets 16 and stop members 11. The flexible strip 18 may be formed of spring steel or plastic.
Patent GB-623514-A (GB)
Title: Improvements relating to electric tumbler switches
IPC: H01H23/16
Filed: 1947-05-08
Abstract: 623,514. Snap-action switches; retractive switches. ROTAX, Ltd., and BOURNE, W. G. May 8, 1947, No. 12455. [Class 38(v)] A range of switches having different actions, e.g. retractive, two-position non- retractive, central off position, determined by an interchangeable cam-piece mounted on the contact arm, are constructed otherwise from common parts. A metal-stemmed finger-lever 8 encased at its outer end in a sheath 12 of thermoplastic material and having a bore 9 at its inner end housing a spring 10 and a ball 11, is pivoted at 17 in a U-shaped metal frame 1. The contact-arms 4 are pivoted in a slot 3 in the frame by the out-turned ends 7 of their central U-shaped portion 6, in which a thin plate cam 19 is secured by a pin 24 so as to pass through a slot across the bore of the finger-lever. Rocking of the finger lever causes the spring-loaded ball 11 to bear on the cam surface and rock the contact arms 4 to engage fixed contacts 26 on the base. As shown, Fig. 1, the cam is steep sided to provide a two-way retractive switch with central off/position. Alternatively, the switch may be converted to a two-position, non-retractive, snap-action switch, by use of a cam 32 with an inverted V part, Fig. 4, or a two-way, non-retractive switch with a central off position, Fig. 6, or a switch which is locking on one side and non-locking on the other side of a central off position, Fig. 5.
Patent GB-682448-A (GB)
Title: Means for protecting the exhaust valves of internal-combustion engines
IPC: F01L3/08
Filed: 1949-05-10
Abstract: 682,448. Protecting exhaust-valve stems. SOC. D'ETUDES DE MACHINES THERMIQUES. May 10, 1949 [May 27, 1948], No. 12478/49. Classes 7 (ii) and 7 (vi). An insulating. air space 7 is provided between a screening member 6, e.g. of frusto-conical form, and a valve guide 3., the member being secured to a cylinder head 2' and a sleeve 8 closely surrounding a valve stem 4. The member may be connected to a removable valve seat 2 by spacer arms 5. In a modification, the air space is defined by the member and a sleeve mounted in the valve guide housing.
Patent GB-201260-A (GB)
Title: Improvements in and relating to gramophones and the like
IPC: G11B19/00
Filed: 1922-05-03
Abstract: 201,260. Gratze, E. V. Hayes-. May 3, 1922. Driving; cases; horns and trumpets, arranging and supporting. - A gramophone or the like is driven by a. falling non-rotating weight e<1> formed as, or connected to, a nut adapted to engage a quick-pitch screw-thread on a vertical spindle e geared to the turntable b. The weight is prevented from rotating by a guide-rod f. The weight may be raised to reset the machine, by rotating the spindle e bv means of a cord o, drum m and ratchet-gear, or by gearing operated by moving the tone-arm to and fro. In modifications, the weight is raised directly, in which case mechanism such as a one-way coned clutch p, Fig. 4, or a disconnectible screwed stud r, Fig. 5. is provided so that the spindle is not rotated. To vary the speed ratio, the turntable may be driven by a friction roller t, Fig. 3, keyed to a shaft t<1> and adjustable radially of the turntable. The pedestal d also forms the resonating horn and is pierced near the bottom with sound outlet holes d<1>.
Patent GB-1434472-A (GB)
Title: Colour photographic silver halide material containing 2- equivalent yellow couplers
IPC: G03C7/305
Filed: 1974-03-21
Abstract: 1434472 Amides AGFA-GEVAERT AG 21 March 1974 [21 March 1973] 12564/74 Heading C2C [Also in Division G2] A photographic yellow coupler of the formula is prepared by heating α-(2-ethoxycarbonyl-4- methyl - phenoxy) - 2 - chloro - 4 - hexadecyloxy-acetanilide in absolute benzene and sodium methylate solution. α-(2-Ethoxy-carbonyl-4- methyl - phenoxy) - 2 - chloro - 4 - hexadecyloxyacetanilide is prepared by heating 6-hydroxy-3- methyl-benzoic acid ethyl ester and 2-chloro-4- hexadecyloxy - α - bromoacetanilide in absolute ethanol and sodium methylate solution. 6 - Hydroxy - 3 - methyl - benzoic acid ethyl ester is prepared by adding hydrochloric acid to an ethanolic solution of 6-hydroxy-3-methyl-benzoic acid. A photographic yellow coupler of the formula is prepared similarly.
Patent GB-652179-A (GB)
Title: Improvements in or relating to agricultural implements and machines for working the soil
IPC: A01B33/06
Filed: 1948-05-07
Abstract: 652,179. Agricultural implements. GUYER, J. BUCHER-. May 7, 1948, No. 12649. Convention date, May 31, 1947. [Class 6(i)] A rotary plough comprises a doubleended tool-shaft 4 carrying rotary tools 8 and 9, driven from a motor 2 through a longitudinal shaft 15 and gearing 17, 18, the tool-shaft being adjustable around the longitudinal axis of the machine so that either or both tools may be brought into operation. The forward part of the machine comprises a walk-type tractor with driven wheels 3 and steering handles 5. An arched main frame 7 carrying the tools is mounted on an adjustable rear wheel 25 and is pivoted at 6 to the tractor. The shaft 15 is mounted in a sleeve 11 integral with the gear housing 10 and with a rear shaft 12, to which is secured a handle 19. The handle 19 co-operates with adjustable stops 20, 21 on an end plate 22, Fig. 10, to secure the assembly in any position around the longitudinal axis. Since inversion of the assembly reverses the sense of rotation of the tools, the device may be used as a one-way plough. Rotary hoes or harrows may replace the ploughs 8 and 9, the tool-shaft 4 then being used in a transverse position.
Patent GB-799332-A (GB)
Title: Improvements in electroplating with cadmium
Inventor: HIGH LEROY BERTOLET
IPC: C25D3/28
Filed: 1955-05-02
Abstract: 799,332. Electrodepositing bright cadmium. UDYLITE RESEARCH CORPORATION. May 2, 1955, No. 12669/55. Class 41. Bright cadmium is electrodeposited from an aqueous cyanide plating bath containing at least 0.01 g./l. of sulphated oleic acid (stearic acid 10-hydrogen sulphate) or an ester thereof containing not more than two sulphate groups, being a mono-ester of sulphated oleic acid, a mono-ester of a hydroxy compound containing one sulphate group, or a diester of sulphated oleic acid with a polyhydroxy compound, or a mixture of any of these. Preferably, the ester groups are derived from alcohols containing at most two hydroxy groups and 8 carbon atoms and the bath also contains zinc, copper, iron, nickel, or cobalt as a metal brightener.
Patent GB-1501251-A (GB)
Title: Assembly of dynamoelectric machines
IPC: F16C35/063
Filed: 1975-03-26
Abstract: 1501251 Assembling force fits GENERAL ELECTRIC CO 26 March 1975 [1 April 1974] 12680/75 Heading B3U The shaft 21 of a dynamo-electric machine 1 is press fitted into a bearing 3 while supporting the inner race 7 of the bearing against axial movement. The bearing itself is press fitted within an end casing 5 of the machine. The end casing is located by pins 53, 55 on a platen 37, and the shaft is forced by an upper ram 107 through the bearing. The inner bearing race is supported by a sleeve 81 and piston 9, the piston being axially locked in place by an hydraulically contractable sleeve 91. Insertion of the shaft is limited by contact of a shoulder 29 on the shaft with a fixed abutment surface 15. Further movement of the ram then compresses a spring 115 and operates a shortcircuiting pin 119 to terminate operation of the ram.
Patent GB-453789-A (GB)
Title: A process of synthetically preparing ª‰(10)-oxycamphor
IPC: C07C45/67
Filed: 1935-04-29
Abstract: 10-Oxycamphor is prepared by treating a 10-halogen-camphor with an alkali metal salt of an organic acid and then saponifying the ester formed.  According to the examples, 10-bromo- or chloro-camphor is heated with anhydrous potassium acetate in glacial acetic acid and the product, after extraction with ether, saponified with alcoholic casutic potash.  The product, whose formula is given, is capable of oxidation by means of potassium bichromate and sulphuric acid to 10-apocamphor-1-carboxylic acid (ketopinic acid).  The Specification as open to inspection under Sect. 91 also contains two examples describing the preparation of 10-oxycamphor by heating 3 : 10-dibromocamphor with anhydrous potassium acetate in glacial acetic acid, extracting the resulting 3-bromo-10-acetoxy-camphor with ether, and then effecting in either order the removal of the bromine by reduction with zinc dust and acetic acid and the saponification of the acetoxy group with alcoholic potash.  It also refers to 10-apocamphor-1-aldehyde as an oxidation product of 10--oxycamphor. This subject-matter does not appear in the Specification as accepted.
Patent GB-330078-A (GB)
Title: Improvements in and relating to belt and chain gearing
IPC: F16H55/48
Filed: 1929-04-25
Abstract: 330,078. Parker, J. April 25, 1929. Chain-wheels; positive-driving pulleys.-Pulleys for use in belt and chain gearing more particularly for elevators and conveyers, are covered with rubber a<1> having recesses b and projections c, which are preferably square or rectangular, therein. Individual links of a modified driving-chain are adapted to fit into the recesses, while the parts c project through spaces in the links so that a positive drive over the whole width of the pulley is obtained. The wheel, which may be of cast iron, is preferably provided with metal side flanges d, which may have tapered ends.
Patent GB-477575-A (GB)
Title: Improvements in and relating to projectors for automobiles, bicycles, aeroplanes and the like
IPC: F21S13/00
Filed: 1937-05-05
Abstract: 477,575. Vehicle &c. lamps. CIBIE, P. May 5, 1937, No. 12851. Convention date, May 22, 1936. [Classes 75 (ii) and 75 (iv)] In a vehicle or like lamp in which the lens or front glass c is secured directly t( the lamp casing a the glass is engagec by a decorative pro jection b formed a1 the top of the casing The glass may be centred by means of a projecting band d surrounding the lower part of the projection b, and it may be fixed in position by means of a projection e being engaged by a metallic foot f articulated to the lamp casing. A reflector g is secured within a peripheral ring c<1> on the back of the glass by means of varnish h, whilst a metallic blade i on the back of the reflector engages a resilient tongue j fixed to the lamp casing. This ensures the assembly of the glass and reflector and at the same time serves for the passage of electric current. The glass may have vertical striations.
Patent GB-1136578-A (GB)
Title: Phosphite-borate stabilizers for rubber polymerizates
IPC: C08L101/00
Filed: 1966-03-24
Abstract: 1,136,578. Phosphite polymer/organic borate compositions; polymer stabilizers. NATIONAL POLYCHEMICALS Inc. 24 March, 1966 [22 Oct., 1965], No. 12945/66. Headings C3P and C3R. A stabilizing composition comprises a mixture of a phosphorus-containing polymer prepared by reacting a phenol, an aldehyde, and a trivalent phosphorus compound and an organic hydrocarbon substituted borate, the borate being present in an amount of 2 to 50% by weight of the stabilizing composition. The phosphorus containing polymers may be prepared by reaction of a phenol and an aldehyde to form a product which is then reacted with a trivalent phosphorus compound or a phenol may be reacted with a trivalent phosphorus compound to form an aromatic phosphite which is then reacted with an aldehyde. Exemplified phosphorus containing polymers are those prepared by reacting (a) tris-paranonyl phenyl phosphite with formaldehyde and (b) nonyl phenol with paraformaldehyde, followed by reaction with phosphorus trichloride. The organic borate may be 2,6-tertiary butyl 4-methyl phenyl dibutyl borate; tri-(nonyl phenyl)-borate; tricresyl borate; phenyl hexylene borate; octyl phenyl di-(ethyl hexyl)- borate; di-(nonyl phenyl)-isodecyl borate; dihexylene glycol diborate; trioctyl borate, and para tertiary butyl phenyl diisopropyl borate. The stabilizer compositions may be prepared in emulsion form by emulsification in water with e.g. a fatty acid alkali metal soap, or they may be dissolved in hydrocarbon solvents such as petroleum solvents and toluene or plasticizers such as fatty acid esters and phthalate esters. The above compositions may be used to stabilize natural or synthetic rubbery polymerizates in amounts of 0À1 to 5À0% by weight. Numerous types of polymer which may be stabilized are listed, those specifically exemplified being a styrene-butadiene latex rubber, a polybutadiene rubber, an acrylonitrile-butadiene rubber and a rubbery ethylene-propylenebutadiene terpolymer. The stabilizers may be used in conjunction with conventional stabilizers and antioxidants such as organic phosphites, alkylated phenols, aromatic amines, alkylene bis-alkylated phenols and thiobisalkylated phenols.
Patent GB-926427-A (GB)
Title: Improvements in or relating to upendable beds
IPC: A47C17/42
Filed: 1961-04-11
Abstract: 926,427. Bedsteads; curtain rods. STAPLES & CO. Ltd., and R. G. HEAL. Feb. 27, 1962 [April 11, 1961], No. 12986/61. Classes 52 (2) and 52 (5). An upendable bed arrangement comprises a mattress supporting frame 10 to which is pivoted at 16 an elongated structure 17 which is provided with a curtain rail 28 spaced from the wall and floor of the room in which the arrangement is to be used at such a distance that when the bed is upended it is disposed beneath and behind the rail 28 so that a curtain 29 may be suspended from the rail to hide the bed. The foot of the bed is provided with a support 14 which is connected to the structure 17 by a rod 21 in such a way that when the bed is swung upwardly about the pivot 16 the support automatically folds parallel to the frame 10.
Patent GB-828682-A (GB)
Title: Improvements in or relating to devices for connecting handles of wood or like material to implements
IPC: B25G3/00
Filed: 1955-05-04
Abstract: 828,682. Handle fixings. CRAVENNE, R. April 20, 1956 [May 4, 1955], No. 12997/55. Class 61. A device for connecting a handle to an implement such as a mop. comprises a tubular socket 13 into which a headless woodscrew 17 is rigidly fixed by its shank. The socket is split along its length and flared outwards at its open end to receive a handle. The curved centre of an approximately V- shaped wire 14-15 is crimped into the body 13 beside the shank of the screw 17 at 21. The wire 14-15 terminates in a pair of pivots 24 and 25 which connect with the implement.
Patent GB-1062725-A (GB)
Title: Improvements in or relating to lasers
IPC: H01S5/30
Filed: 1965-03-26
Abstract: 1,062,725. Lasers; semi-conductor devices. INTERNATIONAL BUSINESS MACHINES CORPORATION. March 26, 1965 [May 1, 1964], No. 13072/65. Headings H1C and H1K. In an injection laser comprising a semiconductor body 1 having a PN junction 6, a uniform reference potential is applied to one side of the junction and different potentials are applied to at least two discrete regions on the other side of the junction so that the production of radiation is controlled. As shown, opposite polarity potentials are applied to ohmic contacts 8, 9 so that the region on one side of point 13 is forward biased and the region on the other side is reverse biased. The latter region has the property of absorbing radiation reaching it from the former region so that the direction of the output radiation is controlled. The upper surface of the crystal may be divided into an array of regions, which may be separated by shallow grooves, each region being provided with an ohmic contact, so that by applying forward-biasing potentials to selected aligned contacts the direction of the output can be selected. Cruciform and disc-shaped arrangements of this type are described (Figs. 5 and 6, not shown). The provision of a groove between adjacent contacts reduces the separation necessary between the contacts. Alternatively a region of higher resistivity or opposite conductivity type may be provided between adjacent contacts. In another embodiment, Fig. 4 (not shown) a central region is separated from two edge regions by grooves, the central region being forward biased and the edge regions reverse biased to suppress transverse modes. A suitable crystal material is GaAs having 10<SP>19</SP> P-type impurities per c.c., and preferably a smaller concentration of N-type impurities. Ohmic contact 7 may be of nickel or gold. Reference has been directed by the Comptroller to Specification 987,359.
Patent GB-310486-A (GB)
Title: Improvements in gas-operated automatic small arms
IPC: F41A3/66
Filed: 1929-04-26
Abstract: 310,486. Ceskß Zbrojovka Akciova Spolecnost v. Praze. April 26, 1928, [Convention date]. Breech actions, sliding breechblock.-Relates to gas-operated guns, and consists in making the breech casing 23, Fig. 1, with a variable outline in cross-section and a decreasing thickness from the front end towards the rear end. At the rear end, the height a, Fig. 5, of the breechblock is at least one fifth less than the half b of the width of the casing, the curvature of the casing in cross-section being varied to correspond to this. The casing is stiffened by ribs 70 which also serve to guide the carrier 20 of the breech-block.