baber/WOPTO huggingface dataset:
Patent GB-682821-A (GB)
Title: Improvements in or relating to the production of metal powders by the carbonyl process
IPC: C22B5/20
Filed: 1950-10-20
Abstract: 682,821. Manufacture of iron and other metal powders. BADISCHE ANILIN- & SODA-FABRIK. Oct. 20. 1950 [Nov. 4, 1949], No. 25594/50. Classes 72 and 82(i) In a process for the production of metal powders by thermal decomposition of metal carbonyls in a heated container, part of the metal being entrained by the carbon monoxide formed, an additional current of gas, preferably carbon monoxide, is introduced, thus increasing the amount of metal powder entrained by the gases. As shown, a metal carbonyl is led into a heated chamber A through a pipe C and decomposed into metal powder and carbon monoxide. Additional carbon monoxide is led through a pipe E into the bottom of the chamber and deflected downwards by a cone F. The gases and entrained powder escape through a pipe G into a separator H which may be consecutively arranged filters, deflecting or baffle plates, or magnetic or electric separators, and the separation may be in a plurality of stages. The additional carbon monoxide may be at such temperature that it will effect cooling of the metal powder and the carbon monoxide formed by decomposition.
Patent GB-186347-A (GB)
Title: Improvements in and relating to escalators and endless conveyors of the step or section type
IPC: B66B21/04
Filed: 1922-09-21
Abstract: 186,347. Otis Elevator Co., (Assignees of Margles, S. G., and Niendorff, C. W. E.). Sept. 23, 1921, [Convention date]. Moving stairways.-The curved riser 6 of each step is formed integral with the horizontal web 3 and has welded to its lower end an axle 7 carrving wheels 8. The axle 12 carrying the other wheels 11 is supported by bearings 13 welded to the step frame and also to angle braces 15 which are also welded to the riser 6. The axles of the wheels 11 are pivot pins for some of the links of the driving chains 22, and the links between each pair of axles are provided with projections 30, 30' which permit flexure of the chains in one direction only.
Patent GB-820545-A (GB)
Title: Improvements in or relating to electric multi-stage amplifiers
Inventor: DALE SAMUEL HOWARD
IPC: G05B11/01
Filed: 1955-09-07
Abstract: 820,545. Magnetic amplifiers. GENERAL ELECTRIC CO. Ltd. Sept. 4, 1956 [Sept. 7, 1955], No. 25668/55. Class 40 (9). A pair of back-to-back magnetic amplifiers each have positive feed-back windings energized from the output of a following electronic amplifier. As illustrated, two pairs of ferro-magnetic cores each have A.C. windings 3 energized from sources 4 with a load 7 and self-excitation winding 6 energized over rectifier 5. Common to all cores is a reference control winding 11, a variable control winding 12, differential and overall bias windings 8 and 9, and the feed-back winding 10. The electronic amplifier 2 has negative feed-back and includes the positive feed-back windings 10 in its anode circuit. The use of positive feed-back is said to reduce the response time of the amplifiers.
Patent GB-1273538-A (GB)
Title: Improvements relating to staircase flights
Inventor: KILLEEN JOHN GORDON
IPC: E04F11/02
Filed: 1968-05-29
Abstract: 1,273,538. Staircases. J. G. KILLEEN. 19 May, 1969 [29 May, 1968], No. 25671/68. Heading E1B. A staircase comprises a steel sheet 10 or 11 bent to form a plurality of treads 12 and risers 13, the final tread being extended to form a half landing 14 or 15, and a pair of side members 16 welded to the opposite edges of the sheet. Channel section supports 17 are welded underneath the landing and are connected by a support beam bolted thereto. A series of channel section posts only one of which is shown at 19 are bolted to the side members and bannister rails are bolted thereto. In a staircase with flights at right angles the extension at the top of a flight forms a complete landing. Tread covers of hardboard, linoleum, P.V.C. or carpet are attached to the treads by bolts or clips which engage preformed holes in the treads.
Patent GB-786415-A (GB)
Title: Improvements relating to building units and to roofs, walls or partitions made therefrom
IPC: E04C2/32
Filed: 1956-08-23
Abstract: 786,415. Building units. TURNERS ASBESTOS CEMENT CO., Ltd. Aug. 23, 1956 [Aug. 26, 1955], No. 25803/56. Classes 20(2) and 87(1) A building unit made of sheet metal or asbestos cement comprises a flat part 6 and a corrugated part 5 consisting of two or more troughs 7, 8, the trough 7 being united to the flat part 6 by a flange 10 lying below the level of the flat part by a distance equal to the thickness of the material, and the trough 8 being provided along its free edge with a flange 14 lying below the flat part by a distance equal to twice the thickness of the material. The units are assembled with the free edge of the flat part 6 and the flange 10 of one unit overlapping the flanges 10, 14 respectively of an adjacent unit. The assembly results in cavity roof, wall, &c. having one flat and one corrugated surface. Specification 620,012 is referred to.
Patent GB-481810-A (GB)
Title: Improvements in or relating to implements for scarifying or aerating the surface of lawns and the like
IPC: A01B1/24
Filed: 1936-09-23
Abstract: 481,810. Hand tools for piercing and scarifying lawns &c. STONEHAM, E. G. Sept. 23, 1936, No. 25814. [Class 6 (ii)] An implement for scarifying, aerating, and loosening the surface of a lawn comprises a block A which may be made of wood and through which are driven a number of nails B the heads of which are covered by a second block A<1> faced with a metal plate D. A handle socket C<1> is secured to the block A<1> and the two blocks are fastened together by screws d. Instead of being driven through the block A, the nails may be passed through holes made in the block. The nails can be removed after separating the blocks A, A<1>.
Patent GB-366104-A (GB)
Title: Improvements relating to shelves, table tops, and the like made of glass
IPC: A47B96/20
Filed: 1930-08-29
Abstract: 366,104. Shelves ; table tops. SOC. ANON. DES MANUFACTURES DES GLACES ET PRODUITS CHIMIQUES DE ST-GOBAIN, CHAUNY, ET CIREY, 1 bis, Place des Saussaies, Paris. Aug. 29, 1930, No. 25833. Convention date, Aug. 31, 1929. [Classes 52 (i) and 52 (iii).] Table tops, shelves, and like articles are made of tempered glass to increase their resistance to load and changes of temperature. The Specification as open to inspection under Sect. 91 (3) (a) comprises the manufacture of sheets, strips, brackets, rules, and the like of tempered glass. This subject-matter does not appear in the Specification as accepted.
Patent GB-390066-A (GB)
Title: Improvements relating to the concentration of nitric acid
IPC: C01B21/44
Filed: 1932-09-16
Abstract: <PICT:0390066/III/1> In the concentration of dilute nitric acid by passing the nitric acid vaporized in a heater E into a column C down which concentrated sulphuric acid supplied by a pipe D trickles, the concentrated vapours passing off at the top of the column and being condensed in a cooler F, the excess heat developed is recovered by leading off the diluted acid from the bottom of the column into a separator S where water is removed by evaporation under vacuum produced by a pump A.  The concentrated acid passes to a receiver B from which it is recirculated to the column C by a pump P<2> the flow of acid being controlled by a thermostat and actuating a valve V.  A float R controls the supply of liquid to the separator S in accordance with the level of the liquid in the column C.
Patent GB-535617-A (GB)
Title: Improvements in or relating to the conditioning or tempering of shoe stiffener or other shoe part blanks
IPC: A43D95/12
Filed: 1939-09-15
Abstract: 535,617. Conditioning shoe-stiffeners. BRITISH UNITED SHOE MACHINERY CO., Ltd., and BAGSHAW, C. M. Sept. 15, 1939, No. 25883. [Class 17 (i)] The machine described in Specification 421,736 is modified to remove surplus conditioning liquid from the blanks, by opposed absorbent surfaces. The blank is carried under the liquid in a tank 16 by a toothed roller 12 as described in the prior Specification. It is stripped from the roller by fingers 30 and guided by a plate 32 to the bite of a pair of felt-covered rolls 34, 36 driven at a peripheral speed slightly less than that of the roller 12. The rolls 34, 36 are urged apart by springs 52 to a limit determined by the position of cams 62 adjustable by an arm 66, the cams abutting against plungers 60 each housing a strong spring. Liquid is removed from the rolls by scraping plates.
Patent GB-1099113-A (GB)
Title: Preparation of esters of aromatic hydroxy compounds
Inventor: KAEDING WARREN WILLIAM
IPC: C07C69/773
Filed: 1965-06-18
Abstract: Carboxylic acid esters containing 1 to 3 ester groups of a hydroxy aromatic compound of the formula <FORM:1099113/C2/1> wherein R is an aprotic substituent unreactive in the process, two or more R's may be joined to form a fused ring system; x is 1 to 3; n is 0 to 5 and each hydroxy group is esterified; are obtained by contacting a normal cupric alkanoate or aryloate with a compound of the formula <FORM:1099113/C2/2> in the liquid phase under substantially aprotic conditions at 180-300 DEG  C., and separating said ester from the reaction mixture. The initial product of the reaction is the carboxylic ester of the monohydroxylated aromatic reactant. When a reactive position remains on the ring of the reaction product, further reaction can take place in the same way to form the corresponding esters of the polyhydroxylated aromatic reactant. These reactions produce the free carboxylic acid corresponding to the cupric carboxylate starting material.  The free acid is preferably removed by periodic addition of cupric ions in the form of a copper compound or by the presence of excess cupric oxide in the reaction mixture.  Examples are given for the production of esters derived from diphenyl ether and benzoic acid or m-nitrobenzoic acid; from phenyl benzoate and benzoic acid; and from naphthalene, o-xylene, nitrobenzene, anisole, fluorobenzene, benzene or mesitylene and benzoic acid.
Patent GB-603648-A (GB)
Title: Improvements in hydraulically-operated friction clutches
IPC: F16D25/0635
Filed: 1945-10-05
Abstract: 603,648. Hydraulically operated friction clutches. SOC. DES BREVETS KEGRESSE, (S.E.K.). Oct. 5, 1945, No. 26021. Convention date, Dec. 22, 1943. [Class 80 (ii)] In a hydraulically-operated plate clutch applicable to the control of change-speed gears and having a presser plate 3 acted upon by an annular hydraulic piston 4 for clutch engagement, resilient members 11 comprising coil or leaf springs or blocks of resilient material are mounted between the plate and piston to delay clutch disengagement due to leakage when the fluid supply has been cut off. As shown, applied to a clutch of the single intermediate disc type, the resilient members are uniformly distributed around the clutch axis and comprise individual units made up of springs 11 located in cups 7, 9 seating in recesses in the opposed faces of the piston 4 and presser plate 3 respectively. The cups 7 carry bolts 8 on which the cups 9 are slidable to compress the springs 11, whose total resilience is such that when the fluid pressure is operative for clutch engagement they are completely compressed, the piston 4 abutting the presser plate 3 directly. On cutting off the supply of operating fluid, the springs 11 extend as the piston 4 retracts due to leakage and are just of sufficient strength to maintain full clutch engagement up to the limit of their travel when the cups 9 abut heads 10 on the bolts 8.
Patent GB-1491657-A (GB)
Title: Transformer tap switch assembly
IPC: H01F29/04
Filed: 1976-06-23
Abstract: 1491657 Transformer tap changers MASCHINENFABBIK REINHAUSEN GEBR SCHEUBECK KG 23 June 1976 [2 July 1975] 26033/76 Heading H1N In a transformer tap changer the tap selector assembly 4 is mounted on the lower end wall 18 of the cylindrical oil filled housing 2 of the load diverter switch 3 and the drive shaft 14 and selector shaft 22 are arranged to be parallel and spaced apart for the correct disposition of the intermittent gear means 33 comprising the drive crank 19 and Maltese-cross wheels 20, 21 mounted respectively on the shafts 14, 22. The arrangement is stated to avoid the necessity for an additional parallel shaft between the drive shaft 14 and the crank 19. The selector shaft 22 is supported by a bearing pedestal 24 on the bottom wall 18 of the diverter switch housing 2 and extends between cage rings 27, 28 supporting the insulator rods 25 for the fixed contacts 26. A pre-selector switch 34 may be arranged on one side of the selector switch 4 and comprises fixed contact support rods 35 attached to the bottom wall 18 and having a drive crank 37 for the actuating rods 38 pivotally mounted in the upper cage ring 27.
Patent GB-1122254-A (GB)
Title: An improved paperboard strapping dispensing carton with access tray
IPC: B65D5/02
Filed: 1966-06-13
Abstract: 1,122,254. Roll holder. SIGNODE CORP. 13 June 1966 [16 Nov., 1965], No. 26254/ 66. Heading A4G. [Also in Division B8] A carton for dispensing plastics strapping S from a coil includes a closed lower compartment holding the coil, and an upper open tray 31 separated from the lower compartment by a wall 58 in which a feed aperture 36 is provided. The tray 31 is divided by a fixed partition 60 which forms, with flaps 62 hinged thereto, a carrying handle, a finger space 34 being provided. The flaps 62 may be held in the vertical position shown by a flap 70, or may be folded down into a coplanar relationship across the top of the tray 31. A separate lid (14), Fig. 5 (not shown), may be provided to complete the closure of the tray, and this lid may be slid on to the base of the carton during use. The carton is preferably formed from a single paper-board blank in which the wall (58) Fig. 6 (not shown), of the tray is formed in two halves, each of which is connected to a side wall (22, 20) of the carton through panels (56) which lie against the inner surfaces of the side walls on erection. The partition (60) and flaps (62) are hinged to the halves of the wall (58), and the two sections of the partition (60) are provided with end flaps (76) to underlie panels (72) on the end walls (26, 24) on erection, the panels (72) folding in to form the inner end walls of the tray. Recesses (80) in the ends of each half of the wall (58) receive tabs (78) on the panels (72) to hold the carton erect, and staples may also be used. The base of the carton is formed from four flaps hinged to the lower ends of the side and end walls, the innermost of these flaps, (42), covering the entire base so that when the strapping S is pulled from the aperture 36, Fig. 2, the coil, mounted on a core which allows a small amount of lateral play within the carton, rotates easily within the closed compartment. The hole 36 is circular, and of slightly smaller diameter than the width of the strapping so that it is held in a friction grip when not being pulled.
Patent GB-649495-A (GB)
Title: Electric motor with clutch-brake drive
IPC: H02K7/112
Filed: 1948-10-08
Abstract: 649,495. Operating clutches. S I N G E R MANUFACTURING CO. Oct. 8, 1948, No. 26262. Convention date, June 10. [Class80(ii)] '[Also in Group XXXV] In an electric motor with a clutchbrake drive the driven clutch element, which is carried by the driven shaft, is made to engage the driving clutch element by being shifted axially together with the driven shaft by an actuating lever pivotally secured to the motor casing. Figs. 2, 3 show a driven shaft actuating lever 50 pivotally secured between the link of a U-shaped bracket 47 by a pin 49. Fixed to the lever 50 by bolt 52 is a leaf spring 53, the free end of which extends on one side of a roller 46, the other side of the latter being partly embraced by an offset portion 51 of the lever 50. The roller 46, which is carried by a pivot pin 45 arranged in brackets 44 on a cover plate 42, moves axially together with the latter when the lever 50 is moved about its pivot 49. The movement of the cover plate 42 causes the driven shaft to shift axially through guiding 41, Fig. 1 (not shown), by screws 43. Specifications 290,909, [Class 80(ii)], 620,960 and 649,496, [Group XXXV], are referred to.
Patent GB-461573-A (GB)
Title: Improvements in or relating to cam motion transmitting devices
IPC: B62D3/02
Filed: 1935-09-23
Abstract: 461,573. Cam mechanism. BUGATTI, E. Sept. 23, 1935, No. 26314. Convention date, Sept. 21, 1934. [Class 80 (iii)] In known cam drives wherein a cam 2, Fig. 1, actuates a member 1 through a roller 3 mounted on a spindle 4 carried by the member 1, if wear between spindle and roller occurs, a decrease in lift occurs and such decrease is not uniform throughout a rotation of the cam. According to the invention, a roller 3, Fig. 2, is loosely carried by the member 1 and transmits the cam movement to rollers 5, 6 mounted on spindles 7, 8 in the member 1. With this arrangement, the decrease in lift is less than in Fig. 1, and moreover, is constant throughout a rotation of the cam. In Fig. 3, the invention is shown as applied to the actuation of a rocker arm 9 pivoted at 10, the roller 3 being loosely carried in the arm by an apertured plate 11. In modifications, (1) the cam has a concave surface and a small roller 3 is employed to prevent bridging the edges of the cam ; (2) the roller 3 is replaced by a ball and the rollers 5, 6 are correspondingly grooved; (3) the roller is conical and, in the two last modifications, the cam is adjustable axially to vary the lift.
Patent GB-154050-A (GB)
Title: Combined seat and pillar for motor and other cycles, applicable also for other usages, such as, for instance, occasional seats or piano stools
IPC: A47C9/10
Filed: 1919-10-27
Abstract: 154,050. Martin, E. C. Oct. 27,1919. Saddles; saddle supports.-Relates to the kind of combined saddle and saddle support for motor and other cycles, which, when detached from the machine, can be opened out to form a threelegged occasional seat, piano stool, &c. According to the invention, the rear end of the saddle top is supported by two pairs of obliquely disposed springs c<7>, c<8> upon rods b sliding in a flexible base member c', and the peak is supported by a single pair of springs c<4>, c<5> similarly mounted on a sliding rod c<3>, the member c<1> being provided with a U-shaped rod d or a slotted plate to engage detachably with a lug e* on the head of the seat pillar and to take a slotted clip f with screws f<1>, f<3> whereby the saddle is adjusted angularly; the front leg d<2> of the tripod pillar is in one with the head d* and the other legs d<3> hook into slots d<5> in this head, the base consisting of two inverted trough-shaped members e and a two-part springy member e<xx> which is adapted to fold into the members e. Auxiliary means for preventing the legs from spreading consists of a ring d<7> which may engage with the head or with lugs d<6> on the two legs. U-shaped blade springs may be used in place of the helical springs c<4>, c<8>, and a pair of adjusting-screws f<3>, one on each side of the central plane of the apparatus, may be employed.
Patent GB-412811-A (GB)
Title: Carburettor for internal combustion engine
IPC: F02M19/08
Filed: 1933-09-25
Abstract: 412,811. Spray carburetters. MOYSARD, O., 71, Avenue des Nations, Brussels. Sept. 25, 1933, Nos. 26406 and 26407. Convention dates, Sept. 23, 1932 and Feb. 24, 1933. [Class 7 (iii).] The air inlet of a carburetter is divided to produce three air streams, one passing through a tube 12 in the fuel nozzle 8 which discharges adjacent a conical baffle 30, while the other two, which surround the nozzle, are formed by an adjustable ring 14 which during slow-running seats on a choke tube 22. The ring is mounted on the ends of vertical rods secured to a crosspiece 16, and is lowered during running by a lever 19 against the action of return springs 21. To modify the slow-speed position of the ring, the choke tube is displaced axially by an eccentrically-mounted knob 23, and the springs 21 then seat the ring, which is provided with helical ribs 141, on the choke tube. The conical baffle 30 is supported in a ring 32 by helical wings 31, and to obtain a rich mixture at starting or during hill climbing, a lever 47 is operated to raise the cone and increase the cross-section of the passage 48, so that the engine suction acts more directly on the fuel nozzle 8. The lever 47 actuates a shaft 40 to move an eccentric pin 39 which engages an opening 38 in the cone 30, and to ensure fluidtightness a conical boss 42 is forced by a spring 43 against a conical seat 44 in the bearing 41 of the shaft. A spring-pressed valve 34 prevents damage from back firing. The carburetter is composed of three superposed parts 1, 2, 3, and all the control members are situated in the parts 1, 2 and can be separated completely by removing the part 2.
Patent GB-425997-A (GB)
Title: Improvements in or relating to tool posts or holders for lathes and like machine tools
IPC: B23B21/00
Filed: 1933-09-26
Abstract: 425,997. Tool posts for lathes. STRICKLAND, GERALD, LORD, Villa Bologna, Malta. Sept. 26, 1933, No. 26483. [Class 83 (iii)] A tool post for a lathe or the like comprises a block with a rectangular hole for the tool and a threaded hole extending at an angle and opening into the hole for the tool through which a clamping bolt passes, the block being mounted by means which allow universal movement within useful limits. The tool 12 is held in one corner of the rectangular opening in the block 10 by the diagonal screw clamp 15, other screws 18, 19 may be employed to engage the tool. The block 10 is adapted to swivel, when released, about the pillar 25 and provision for tilting is made by employing spherical washers 28, 29 above and below the block respectively and set screws 34 at the corners.
Patent GB-1079944-A (GB)
Title: Improvements in building units
Inventor: WETTERN JOHN HERBERT
IPC: E04C1/39
Filed: 1964-06-26
Abstract: 1,079,944. Openwork wall blocks. MONO CONCRETE Ltd. June 28, 1965 [June 26, 1964], No. 26524/64. Heading E1B. Blocks which may be superposed in various positions either vertically or horizontally to form openwork walling, Figs. 2-7 (not shown), are shaped as shown, the arch B of each block having its top surface in the same plane as the upper ends of the uprights A, and its geometric centre on the line joining the lower ends of the uprights. One upright A may be thicker than the other to form an end pier, and the blocks may be used with auxiliary filler blocks of H or parallelepiped shape.
Patent GB-535134-A (GB)
Title: Improvements in and relating to socket and spigot jointing of gas and water mains and the like
IPC: F16L21/025
Filed: 1939-09-25
Abstract: 535,134. Pipe joints. BURTON, A. H. Sept. 25, 1939, No. 26555. [Class 99 (i)] A jointing sleeve for pipes in which the caulked jointing material is prevented from passing into the pipes by an internal flange is provided with a number of flanges A of increasing or decreasing internal diameter one or more of which may be broken away at B according to the external diameter of the pipes to be inserted in the sleeve.