baber/WOPTO huggingface dataset:
Patent GB-578820-A (GB)
Title: Improvements in or relating to servo control or operating devices
IPC: F15B7/00
Filed: 1944-05-03
Abstract: 578,820. Fluid-actuated valves. CLAYTON DEWANDRE CO., Ltd., and RODWAY, J. May 3, 1944, No. 8364. [Class 135] A servo operating unit for the remote control of engine throttles, ventilators and the like comprises a pair of power cylinders 2, 3 connectible to a supply of fluid pressure and containing 'pistons 8 operatively connected to a shaft 5 for imparting thereto movements in opposite directions, the supply of fluid pressure also being utilised to brake and release the shaft 5 which is connected to the element to be operated. Each piston 8 is linked to a lever 11 freely mounted on the shaft 5. Each lever 11 carries a pivoted pawl 12 engageable with teeth - 15, 15a on a disc 16 fast on the shaft 5 on operation of its respective piston by fluid pressure. As shown only two teeth 15 or 15a are provided for moving the shaft 5 step-wise in each direc- 'tion but more teeth may be provided. The pistons 8 are normally maintained at the outer ends of their cylinders by springs 46 which also serve to keep the pawls against fixed pins 14 and out of engagement with the disc 16. Springs 45 press the pawls into engagement with the disc 16 directly fluid pressure is applied to their respective cylinders. Fluid pressure is admitted to each cylinder under the control of separate and remote manually operated piston valves which on release are restored by springs to a position in which the respective cylinder is vented. The shaft 5 also carries a flange 18 which is pressed against a fixed disc 19 of friction material with sufficient force to prevent casual movement of the shaft 5 whilst allowing hand operation thereof by the hand lever 4, by means of fluid pressure applied above a piston 22 by a pipe separate from those supplying the cylinders 2, 3. When fluid pressure is applied to one of the pistons 8 it is at the same time applied to the underside of the piston 22 thus relieving the end pressure on shaft 5 whilst it is being operated by one of the power cylinders. A shuttle valve is provided in the connection between the two cylinders and the underside of the piston 22 so that the cylinder not being operated is cut off.
Patent GB-569505-A (GB)
Title: Improvements in and relating to vacuum work-holders
IPC: B25B11/00
Filed: 1943-05-26
Abstract: 569,505. Vacuum work holders. SCHMID, E. May 26, 1943, No. 8401. Convention date, June 26, 1942. [Class 60] A vacuum work-holder for hollow cylindrical work-pieces, for example, thin sleeve valves 7 of internal-combustion engines comprises, for grinding &c. the work externally, a hollow muff 8, on which the sleeve is placed, having radial perforations 15 communicating with the cavity 14. The cavity is in communication, through a grooved ring 17, with a suction conduit 16, and the muff runs on centres 11, 12 and is driven at 13. For the internal treatment of the sleeve 7, the muff has an outer annular suction cavity, the inner wall of which has therein radial perforations so as to hold the sleeve, placed within the muff, by suction applied to its external surface. The perforations are spaced to avoid openings in the work-pieces; they may be distributed over the surface of the muff and may be tapped so that desired perforations may be closed by screws. The Specification as open to inspection under Sect. 91 comprises also a work-holder for round washers, the holder being in the form of a hollow flat-topped rotatable table having in the flat face perforations communicating with the cavity of the table, from which air is extracted by a conduit. This subject-matter does not appear in the Specification as accepted.
Patent GB-215294-A (GB)
Title: Improvements in lubricating means for engine and like crank cases
IPC: F16N7/40
Filed: 1922-12-30
Abstract: 215,294. Guiard, A. J. J., and Pernet, J. L. Dec. 30, 1922. Force-feed lubricating; filtering lubricant. - In a crank casing for internal-combustion engines or the like in which the, crank-shaft bearings are mounted in removable supports, the crank casing and the movable supports are formed with intercommunicating oil passages for the supply of oil to the bearings. A rotary gear pump 19 housed in one of the removable supports 16, which is secured in its housing 5 by a screwed spindle 18, draws oil from a sump 3 through passages 10, 11, 20 and delivers it through a passage 21 to the bearing 17 and to a longitudinal duct 9 in the crank case, whence the oil passes to the other bearing by a passage formed in its support. The pressure is regulated by an adjustable relief-valve 27, Fig. 4, controlling a port 29 in the back plate 24 of the pump. A, lever 26 pivoted on the back plate 24 is pressed against the valve 27 by the stem 30 of a plunger 31 acted on by a spring 33 which bears against a second plunger 34 bearing against the lower end of a lever 35 pivoted on a pin 36 mounted on the support 16. The upper end of the lever 35 bears against a plunger 38 acted on by a spring 40 mounted in a holder 41 secured to the housing 5, the spring 40 being stronger than the spring 33. Adjustment is effected. by a screw 42 mounted in the end cover 1<a>. A hand pump 44 mounted on the outside of the crank case is connected to the vertical oil passage 11 between two non-return valves 46, 47. By means of the pump 44 the oil passages and the pump 19 may be primed and kept flooded with oil. Removable filters 50 comprising perforated tubes closed at one end 51 and covered with wire gauze are fitted in openings 3a in the bottom of the sump 3, their open ends fitting into perforations 4<a> in a partition 4 separating the sump from the crank case. Holes are provided near the edges of the supports 16 to permit oil collecting in front of the supports to return to the sump.
Patent GB-667514-A (GB)
Title: Improvements in mobile airplane hanger structure
IPC: E04B1/343
Filed: 1950-04-04
Abstract: 667,514. Aircraft hangars. MITCHELL MOBILHANGAR CORPORATION. April 4. 1950. [April 27, 1949] No. 8438/50. Class 20(i). A mobile aircraft hangar comprises an open-ended structure 15 Fig. 1 consisting of two vertical walls converging towards each other and supporting a roof, wheels being provided at each corner 19, 18 &c. to facilitate mobility. Preferably two such structures are utilized to enclose the aircraft Fig. 3. Each structure includes doors 24, 25 Fig. 2. The wheels can be lowered or raised by hydraulic or pneumatic means. Each section has a tow-bar 19 for manoeuvrability. Each section may include a floor extending part-way from the apex. The roof may of transparent plastic.
Patent GB-1463920-A (GB)
Title: Change-speed gear transmission of the multiple box type parti cularly for agricultural vehicles and/or self-propelled civil  engineering machinery
IPC: F16H37/04
Filed: 1975-02-28
Abstract: 1463920 Change speed gear KLOCKNER-HUMBOLDT-DEUTZ AG 28 Feb 1975 [2 March 1974] 8443/75 Heading F2D In a transmission, for an agricultural or constructional vehicle, an auxiliary change speed gear 4, ahead of and in series with a main change speed gear 5, provides one reverse and two forward ratios, selectable under load by two fluid-pressure-operated selective friction clutches, of which one, 1, is the main input clutch, whilst the other, 15, is on a countershaft 14 directly driven by the input 2 through a wheel pair 12, 13 by-passing the main clutch 1. Thus engagement of the main clutch 1 provides a direct drive to the output shaft 20 of the auxiliary gear, whilst disengagement of the main clutch 1 and engagement of the countershaft clutch 15 drives the output shaft 20 at a different forward ratio through a wheel pair 19, 21, or at a single reverse ratio through a wheel train 24, 25, 26, according to the setting of a double synchromeshed clutch 27. The wheel 26 also forms the input of a pair 26, 31, driving a countershaft 32 of the main change speed gear 5, which drives an output shaft 29, aligned with the auxiliary output shaft 20, at direct drive or three reduced ratios 33, 34, 35, selected by synchromeshed clutches 37, 40. The road wheels 11 are driven through reducing pairs 9, differential 8 and bevel gears 7, by the final output shaft of an output change speed gear 6, which shaft is driven from the main gear output shaft 29 at a normal field ratio through a wheel pair 41, 43; at a highway ratio through a pair 45, 46; at a slow field ratio through a pair 47, 48; or at a creep ratio through wheels 47, 48, 50, 54, countershaft 53 and wheels 55, 56, these ratios being selected by two double and one single synchromeshed clutches 44, 52, 57. A power take-off shaft 75 is driven at two speeds (540 and 1000 r.p.m.) selected by a double clutch 77, through a side shaft 60, engine driven through a wheel pair 12, 61, the shaft 60 carrying the reverse idler 25, and driving also through wheels 63, 64, a pump and compressor, and, through wheels 65, 66, and a friction clutch 68, the power take-off shaft 75.
Patent GB-1269525-A (GB)
Title: Production of esters
Inventor: PUGH LEONARD KEITH
IPC: C07C67/00
Filed: 1969-05-14
Abstract: 1,269,525. Esters. IMPERIAL CHEMICAL INDUSTRIES Ltd. 24 April, 1970 [14 May, 1969; 23 Feb., 1970], Nos. 24540/69 and 8480/70. Heading C2C. Esters are prepared by reacting an olefine with carbon monoxide and an aliphatic alcohol having at least 2 carbon atoms in the molecule, in the presence of a catalytic amount of a carbonyl of a metal of Group VIII of the Periodic Table and a Lewis base. Preferably, the carbonyl is a cobalt carbonyl and suitable Lewis bases include pyridine and lactams, the latter especially containing a tertiary N atom such as N-methyl pyrrolidone. The reaction is preferably carried out at a temperature of from 150‹ to 300‹ C. with a mole ratio of alcohol to olefine in the range 0À1:1 to 4:1 at a superatmospheric pressure of carbon monoxide. Examples describe the preparation of octyl nonanoate from octene-1 and octanol, the di- and mono-esters of ethylene glycol and nonanoic acid from octene-1 and ethylene glycol, ethyl and isobutyl nonanoates and diisobutyl nonanoates.
Patent GB-965809-A (GB)
Title: Process for obtaining pneumatic flexible and/or elastic layers
IPC: B29C65/02
Filed: 1962-03-06
Abstract: 965,809. Laminates. P. VOLPI BASSINI. March 6, 1962 [March 8, 1961; July 1, 1961], No. 8510/62. Heading B5N. Two gas-impervious thermoplastic sheets are welded together to form an inflatable cushion of a plurality of intercommunicating cells, the intercommunications being gaps in the welding seams situated at all or some of the points where the welded edges of the individual cells would intersect if extended. Fig. 1 shows inflatable cushion 20 having individual cells 23 formed by welded seams 24 and intercommunicating by means of gaps 25. Figs. 10 and 11, which are side elevations of a cushion before and after in flation respectively, indicate the reduction in the main dimension of the cushion upon inflation i.e. from L1 to L2.
Patent GB-746639-A (GB)
Title: An improved shovel attachment for use with shovel excavating machines for ditch cleaning and excavating purposes
IPC: E02F3/407
Filed: 1954-03-23
Abstract: 746,639. Shovelling machines. PARR & CO., Ltd. March 23, 1954 [March 26, 1953], No. 8519/54. Class 68 (1) A shovel attachment 1 for a shovelling or excavating machine comprises an arm 2, 5 for securing to the shovel arm or forming the shovel arm of such a machine, arms 6 and 16 on the portions 5 of the arm 2, 5 for pivotally supporting a shovel 8 and a trip shaft 17 respectively, spring-biasing means 21, 23, a trip lever 15 and trip arms 14 on the shaft 17, the means 21, 23 maintaining the arms 14 in engagement with the shovel 8. The trip lever 15 is so shaped that as the shovel is swung towards the shovel armsupporting structure 24 it, on contacting a plate 25 on the structure 24, causes the release of the shovel from the trip arms 14. The shovel is so constructed that, after its release from the trip arms, it rotates about the pivotal connections with the arms 6 to discharge its content and then returns to reengage with the trip arms 14. The walls of the shovel are perforated to allow of drainage of the contents of the shovel.
Patent GB-472544-A (GB)
Title: Improvements in and relating to the production of pulp articles
IPC: D21J5/00
Filed: 1936-03-21
Abstract: 472,544. Moulding pulp. PULP INDUSTRIES, Ltd. (Pappenguss Ges. f³r Zellstoffabrikate) March 21, 1936, No. 8535. [Class 87 (ii)] In moulding hollow articles from pulp with a mould comprising a matrix a and a patrix k, layers of fibrous material are deposited on both the matrix and patrix while the latter is withdrawn from the matrix and the two layers are united by moving the patrix into the matrix. The matrix and patrix have liquid-permeable walls. The patrix k may be mounted on a hollow rod l moved by a hydraulic piston m. The patrix may correspond with only a part of the matrix and the final article will thus have a double layer over part of its surface. A chamber h is provided to which pulp is admitted through apertures i, pressure being put on the pulp or suction maintained through apertures c and the rod l. Water may be introduced through the rod l to the counter-mould k in order to keep it clean or to dilute the pulp progressively and so procure a smooth deposit. Steam or hot air or other drying medium may be introduced through the rod l, the patrix and the pulp layer and out through the matrix or it may proceed in the reverse direction, entering through the apertures c. The patrix may be open at the bottom and the drying medium may then be introduced through the apertures i. The matrix and patrix may be formed of sieve plates or perforated sheet metal. An intermediate liquid chamber and a sliding shutter may be provided between the matrix a and the chamber h so that pulp may be independently deposited on both the matrix and patrix. After deposition, the shutter is withdrawn and the patrix moved up to unite and consolidate the layers. Further layers may then be added.
Patent GB-865092-A (GB)
Title: Method of and apparatus for the manufacture of hosiery on circular knitting machines
Inventor: NACKE OTTOMAR
IPC: D04B35/00
Filed: 1957-03-15
Abstract: 865,092. Knitting-machines. RUND-UND FLACHSTRICKMASCHINENBAU KARL - MARX-STADT VEB. March 15, 1957, No. 8676/57. Class 74 (2). [Also in Group VII] On completion of knitting a toe of a stocking on a circular machine the loops on the instep needles are transferred to the needles which knit the toe and a linking device is operated to cooperate with the toe needles to draw a yarn through both the transferred instep loops and toe loops retained on the toe needles thereby completing the stocking by linking the toe. For this purpose, on completion of knitting, a semicircular transfer bar 18 containing transfer points 17 one to be associated with each instep needle, is pivotally positioned above the needle circle such that the transfer points engage the instep needles 3, Fig. 2. The loops on the instep needles are at this stage below the latches so that by raising the sinker guide-ring the sinkers 12 lifts the instep loops 6 off the needles on to the transfer points, Fig. 1. The bar 18 is then pivoted to swing over the toe needles 8, Fig. 2, and the sinkers engage the instep loops 6 on the points 17 and lift them off on to the needles 8, Fig. 4, whereafter the bar 18 is removed. A linking device comprising a needle 20 and a gripper 22, 23, Fig. 10, is then swung into position within the needle cylinder so that the needle 20 co-operates with the backs of the toe knitting needles and feeds a yarn to be taken by the gripper to ensure the linking of the toe by drawing the yarn through the loops on the toe needles as the cylinder is advanced step-bystep for the linking operation.
Patent GB-485892-A (GB)
Title: Electric vibrator
IPC: H02K33/12
Filed: 1937-03-24
Abstract: 485,892. Vibratory and suction massage apparatus. DEHN, F. B. (Automatic Musical Instrument Co.) March 24, 1937, No. 8683. [Class 81 (ii)] [Also in Group XXXV] A massage vibrator has a massage cup into which extends an applicator reciprocated by a magnetic core member co-operating with a pair of windings energized alternately from an alternating current source through rectifiers. In the form shown the windings 30, 31 are alternately energized to reciprocate the core 19, carrying rods 20, 21 extending through guide blocks 17, 18. The core thereby reciprocates the massage applicator 24 which is located in a stationary suction cup 15, the suction being produced by a pump connected to the hose 40. Axial ducts are provided in the core 19 to complete an air path between the cup 15 and the hose.
Patent GB-530824-A (GB)
Title: Improvements in flame or explosion traps
IPC: F02M1/00
Filed: 1939-03-20
Abstract: 530,824. Fires and explosions preventing and minimizing in internal combustion engine induction pipes &c. HELMORE, W. March 20, 1939, No. 8821. [Class 47 (ii)] [Also in Group XXVII] In a flame or explosion trap of the kind comprising alternate flat and corrugated plates 3, 2 arranged in a casing 4, forming a series of substantially triangular passages parallel to the flow of the combustible gases, for example in the induction pipe of an internal combustion engine, the plates are so formed as to provide local changes in the normally uniform section, direction, or surface of the passages, so as to create a turbulence in the flow of gases. The corrugated plates may be deflected transversely as shown in Fig. 4, or may be formed with protuberances; or both the flat and corrugated plates may be formed with perforations, which may be of louvre form. The changes in Section 4, are preferably made at that end of the flame trap which is nearest the 'source of ignition.
Patent GB-581393-A (GB)
Title: Improvements in and relating to fishing lines
IPC: A01K85/16
Filed: 1945-04-10
Abstract: 581,393. Fishing. STANLEY, W. April 10, 1945, No. 8821. [Class 48] A plug-type fishing lure comprising a buoyant body 11 weighted so as to travel beneath the surface when drawn through the water, is provided with one or more external running guides 12, 13 for the line, one guide serving also as an abutment for a stop 15 on the line. The forward guide is constituted by a channel in a metal plate 18 provided with a depending bib 21 and serving also as a keel and a weight for the lure. The guide 13 is a screw-eye through which the stop 15 passes. Additional hydrodynamic surfaces 22 may be provided.
Patent GB-197920-A (GB)
Title: Stable flying machine
IPC: B64C3/54
Filed: 1923-03-28
Abstract: 197,920. Jarmorkin, R. May 20, 1922, [Convention date]. Aeroplanes; balancing.- The lateral balance of an aeroplane is automatically maintained under wind gusts by small hinged planes set in advance of the main planes and interconnected by upper and lower cables so as to move freely in opposite directions. Longitudinal stability may also be maintained by connecting the lower cable 7, Fig. 2, to the arm 19 of a lever 19, 20 universally pivoted at 18 and lying in a vertical plane, the arm 20 being connected bv cables 22, 23 to the elevator which tilts in the opposite direction to the front planes. The upper cable also is connected to the elevator control to enable the movement to take place. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the following subject-matter. Planes 18, 19, Fig. 3 (Cancelled) are hinged at their front edges to a rigidly braced spar 2 and are interconnected by an upper wire 7 passed over pulleys and bv a lower wire 20 connected to a lever device 22, similar to that shown in Fig. 2, acting upon a lever 28 on the elevators 21. The stabilizing plane 33 is made adjustable to compensate for variations in the load. A modification is described in which the lower wire is independent of the elevator control but is connected to a lever to enable the pilot to bank the machine. Rods or other transmission may be used instead of wires. The application to gliders is referred to. This subject-matter does not appear in the Specification as accepted.
Patent GB-636305-A (GB)
Title: Improvements in sheet metal barrels
IPC: B65D25/20
Filed: 1948-03-27
Abstract: 636,305. Casks. SANKEY & SONS, Ltd., J., and HELDEN, W. VAN. March 27, 1948, No. 8908. [Class 21] Rolling hoops of a metal cask are reinforced at the tread by metal rings fitted to make close contact with the tread inside the hoops. The reinforcement may comprise D-section rings 16 welded in, or the rings 16 may be expanded into contact with the tread. The hoops 13 are welded to strips 14 having riveted joints midway their length. Removal of the rivets permits the hoops and strips 14 to be pulled off the ends of the cask. Hoops 12 carrying end protecting rings 15 are also secured to the strips 14, but are not reinforced.
Patent GB-694943-A (GB)
Title: Preparation of vitamin b
IPC: C12P19/42
Filed: 1949-04-04
Abstract: Vitamin B12 is prepared from a solution of a crude concentrate containing a substance active in promoting the growth of Lactobacillus lactis Dorner by chromatographic fractionation thereof on a column of activated material and recovery of the active substance in a concentrated and purified form from those fractions of the eluate having the highest L.L.D. activity (which may usually be identified by their pink colour).  Advantageously the chromatographic adsorption may be effected from methanol solution on to activated charcoal or activated alumina, and the elution with a lower aliphatic alcohol (e.g. methanol).  The product may be further purified to obtain vitamin B12 in crystalline form, e.g. by one or more of the following methods: (a) repeating the chromatographic fractionation; (b) causing the vitamin to crystallize from solution in water or methanol by the addition of acetone; (c) precipitating the active material from solution in a lower aliphatic alcohol by the addition of acetone, ether or chloroform; (d) purification by counter-current distribution between water and a mixture of organic solvents miscible with chloroform (e.g. a 3 : 1 mixture of toluene and o-cresol), displacing the active material to the water-phase by adding chloroform, and precipitating it from the aqueous solution by adding acetone.  Examples illustrate the various features of the invention as applied to: (1)-(5) liver preparations; (6)-(8) Streptomyces griseus elaboration products.
Patent GB-458890-A (GB)
Title: Improvements in and relating to gravel or like distributing devices for motor vehicles
IPC: B60B39/04
Filed: 1936-03-26
Abstract: 458,890. Vehicle sanding and like apparatus. HANSEN, 0. P., 47, Sortedamsdossering, Copenhagen. March 26, 1936, No. 9059. [Class 103 (iii)] Sand or gravel is adapted to be released from a container 3 on a motor vehicle on actuation of spring-controlled, apertured, slidevalves 13 each of which is connected by a pliable member 18 to an arm 20a projecting from a bush clamped to a rotatable shaft 19, the outer end of the arm being connected by a rigid member 21 to the projecting end of a hand-operated lever 5, movement of which causes rotation of the shaft 19 and winding of the pliable member 18 thereon to open the valves.