baber/WOPTO huggingface dataset:
Patent GB-491975-A (GB)
Title: Improvements in operating mechanism for typewriters
IPC: B41J7/18
Filed: 1937-03-19
Abstract: 491,975. Typewriters. EVANS, O. (Olympia Buromaschinenwerke Akt.-Ges.) March 19, 1937, No. 8063. Addition to 466,791. [Class 100 (iv)] Relay type-lever actions.-The mechanism described in the parent Specification for raising the typelevers into proximity to the platen is replaced by mechanism comprising a rocking toothed-segment 3 gearing with a toothed-segment 1a on the type-lever 1 and connected, as by a link 13 to a member, such as an arm 10 pivoted at 11, provided with two rollers 12 or rocking blocks which engage opposite parts of a driving-eccentric 4. The mechanism imparts a gradually accelerated and retarded movement to the typelever, returns the lever positively and without the aid of springs, and reduces chattering. The eccentric may be provided with a spring- urged pawl 5 which is normally prevented from engaging teeth on the driving-shaft 18 by means of a pawl 9 co-operating with a pawl 8 which is in the path of a pawl 7 on the keylever 6. The member 10 may carry a spring- urged pivoted arm 15 carrying a roller 16 which engages the eccentric in advance of the top roller 12 and tends to hold the pawl 5 and bottom roller 12 in engagement with the pawl 9 and eccentric respectively, chattering of these parts being thereby prevented. Moreover, the roller 16 initiates rotation of the eccentric when the key-lever is depressed. Specification 491,971 is referred to.
Patent GB-537907-A (GB)
Title: Improvements in and relating to heat exchange apparatus
Filed: 1940-05-06
Abstract: 537,907. Tubular heat exchangers. BRITISH THOMSON-HOUSTON. CO., Ltd. May 6, 1940, No. 8081. Convention, date, May 4, 1939: [Class 64 (iii)] In a rectangular bank of sinuous tubes 25-30 enclosed by a casing, the bends of each tube extend obliquely across the casing and the loops in each tube are distributed in the vertical and horizontal rows in the same manner as the other tubes. Thus, the tube 25 extends diagonally across the casing and each of the other tubes, say the tube 27, has one set of loops on one 'side of the tube 25 and the other set on the other side, the two sets being connected by a transverse connection 38.
Patent GB-1063918-A (GB)
Title: Axial-flow turbine rotors
IPC: F01D5/06
Filed: 1966-02-24
Abstract: 1,063,918. Turbine rotors. GENERAL MOTORS CORPORATION. Feb. 24, 1966 [March 10, 1965], No. 8114/66. Heading FIT. The rotor wheels 28, 28' of adjacent axial flow turbine stages in a gas turbine engine are spaced apart by an annular spacer 96 formed from arcuate segments (98), Fig. 4 (not shown), slidably connected to each other by interfitting tongues (104) and grooves (102). The upstream and downstream ends of the spacer 96 have annular grooves 106, 108 respectively which engage with annular flanges 82, 92' on annular blade locking plates 62, 50'. Locking plate 62 has spaced slots (66) therein, Fig. 4 (not shown), the edges 72 of which engage, after a small angular movement of the plate, with tangs 38 on the blade roots 32, thus preventing forward movement of the roots out of their fir-tree slots 30. A similar locking plate 50 having slots 54 with edges 55 engages tangs 36 on blade roots 32 to prevent rearward movement of the roots out of slots 30. The locking plates on wheel 28' are similar to plates 50, 62 on wheel 28. Plate 62 has spaced apertures (76) aligned with cavities 74 in the wheel 28, the apertures and cavities receiving a lug 114 on each spacer segment (98) to locate the segments circumferentially. Vibration dampers (48), Fig. 3 (not shown), are mounted below the hollow platforms 42 of adjacent blades 34.
Patent GB-1143405-A (GB)
Title: Processing of foodstuffs and the like
Inventor: MUYS GERARD TUYNENBURG
IPC: A23L3/16
Filed: 1965-02-25
Abstract: 1,143,405. Filling containers. UNILEVER Ltd. 23 Feb., 1966 [25 Feb., 1965], No. 8171/65. Heading B8T. [Also in Division A2] A method for processing food or other material subject to microbiological spoilage comprises processing and packaging sterilized material under substantially sterile conditions at a temperature not exceeding 8‹ C., and subjecting the packaged material to a pasteurization treatment. The processing may include packaging, mixing, cutting, comminuting, emulsifying, ripening, churning, homogenizing. and storing under special conditions. The packaging of fresh whole milk, homogenized whole milk and skim milk is exemplified. Other materials specified are medical bandages and preparations, vegetable juices, rice, meat and sauces.
Patent GB-1237251-A (GB)
Title: Cathode-ray tube
Inventor: BASOV NIKOLAI GENNADIEVICH
IPC: H01S3/0959
Filed: 1968-05-20
Abstract: 1,237,251. Luminescent materials. FIZICHESKY INSTITUT IMENI LEBEDEVA. 20 May, 1968, No. 8237/68. Heading C4S. [Also in Division H1] Semi-conductor laser material constituting, as a film, the screen of a cathode-ray display tube and excited by the beam (see Division H1) may comprise infra-red emitting gallium arsenide; red-yellow emitting gallium arsenophosphide; blue emitting zinc selenide; orange emitting cadmium selenide; green emitting cadmium sulphide; or ultra-violet emitting zinc sulphide. Reference has been directed by the Comptroller to Specification 1,052,216.
Patent GB-512701-A (GB)
Title: Improvements relating to connecting devices for electric cables
IPC: H01R4/36
Filed: 1938-03-18
Abstract: 512,701. Couplings. CALLENDER'S CABLE & CONSTRUCTION CO., Ltd. and BRYCE, S. J. March 18, 1938, No. 8395. [Class 38 (i)] A device for enabling a tapping to be taken from a cable consists of two metal members 1, 2 adapted to be slid into' engagement as shown in Fig. 8. The member 1 is provided with screws 8 and a terminal 10 as shown in Fig. 1. A bared portion of the cable from which a tapping is to be taken is laid in the member 2 and the member 1 slid in position. The screws 8 are then turned till they make contact with the cable, the pressure also causing the parts 1 and 2 to become frictionally secured together. Two similar devices may be surrounded by a single casting of insulating material. The tapping is taken from the terminal 10.
Patent GB-910362-A (GB)
Title: Improvements in or relating to travelling wave tubes
IPC: H01J25/44
Filed: 1961-03-08
Abstract: 910,362. Travelling-wave tubes. CSF COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. March 8, 1961 [March 29, 1960], No. 8424/61. Class 39 (1). In an M-type travelling-wave tube the sole electrode 6, as shown in the form of a box for the electrostatic shielding of the insulating supports and the leads 17 for the cathode 9. The box 6 has a removable cover 7 for providing access to the interior and the cover 7 may consist of tantalum to act as gettering material while the remainder of the box consists of crimped molybdenum sheets.
Patent GB-374957-A (GB)
Title: Improvements in, or relating to, collar studs
IPC: A44B3/00
Filed: 1931-03-20
Abstract: 374,957. Studs. STARTIN, T. E. L., 106, Emily Street, and GREENWAY, S. W., 127, Bromyard Road, Hall Green, both in Birmingham. March 20, 1931, No. 8556. [Class 43.] In collar studs of the lever top " type wherein a head a is pivotally mounted on a shank g, spring pressure is applied to the top of the shank by the free end of a tongue d formed integrally with the back plate b of the head. The back plate b is stamped from strip metal and pierced with a rectangular aperture to form the tongue d which is then bent into a bowed formation. The back plate is formed with transverse recesses e for engagement with the crosspiece f of the shank.
Patent GB-609688-A (GB)
Title: A process for regenerating spent internal combustion engine lubricating oils
IPC: C10M175/00
Filed: 1946-03-20
Abstract: Spent internal-combustion engine lubricating oils are reclaimed by percolating the spent oils through bauxite at temperatures above 200 DEG  C., but below those at which any considerable cracking occurs. The properties of the regenerated oils compare with those of the original oils.  If necessary, water, low-boiling hydrocarbon fractions, and excess carbon are removed by the usual methods prior to the percolation.  Granular bauxite of low iron content is preferred and may be obtained from one of higher iron content by treatment, e.g. with hydrochloric acid.  The bauxite is dried and activated by heating it before use.  The bauxite may be arranged as a layer on a perforated plate within a percolation column.  The used bauxite may be regenerated in the same column or in a rotating or stationary furnace.  The oil is first removed therefrom by steam or gasoline or by dripping off during the subsequent treatment with oxidizing gases to burn off the absorbed organic substances.  The regeneration temperature is kept below 800-900 DEG  C.
Patent GB-555891-A (GB)
Title: Improvements in spectacle sides
IPC: G02C5/14
Filed: 1942-06-25
Abstract: 555,891. Spectacles. RAPHAEL, O. P. June 25, 1942, No. 8709. [Class 97 (i)] A spectacle side a is bifurcated so as to have a straight free end b and also a downwardly bent portion c of any required flexibility. The end b contacts with the wearer's head and the portion c extends behind the ear. Reference has been directed by the Comptroller to Specification 557,481.
Patent GB-1212965-A (GB)
Title: Improvements in and relating to the continuous production of packages at sub-atmospheric pressures
IPC: B65B9/04
Filed: 1969-02-18
Abstract: 1,212,965. Enclosing material between two webs. TOURPAC A.G. 18 Feb., 1969 [29 Feb., 1968], No. 8818/69. Heading B8C. Two webs 5 and 6, between which increments of material are to be enclosed, are fed over the external faces of walls 3 and 2 respectively of a vacuum chamber 1, these walls each being provided with openings 4 and meeting at a common edge of the chamber, the webs thus being sucked against the respective faces and the packages formed when the webs meet at the common edge being evacuated. The webs are longitudinally and transversely sealed together immediately downstream of the common edge by heated drum 14 and the packages separated by cutter 15. The lower web 5 is heated by element 9 and sucked into moulds 11 to form recesses 10. The recesses are filled between element 9 and the vacuum chamber. The moulds 11 are carried on an endless belt 13 or on a revolving drum (12, Fig. 1). Openings 4 may be in the form of slots or bores. The vacuum chamber may include means for blowing inert gas into the packages.
Patent GB-115528-A (GB)
Title: Piston Packing Rings.
Inventor: WESTMORELAND ERNEST THOMAS
IPC: F16J9/20
Filed: 1917-06-21
Abstract: 115,528. Westmoreland, E. T., and Newby, H. L. June 21., 1917. Piston packing. - Consists in improved arrangements of compound rings. Fig. 1 shows an arrangement in which the inner ring has an ordinary open joint while the outer ring has stepped ends making a joint with a correspondingly shaped stop-piece 5 secured to the inner ring. Fig. 2 shows the outer ring with ordinary stepped ends, relative movement between the rings being prevented by a pin 7 projecting from the inner iing. In one modification, both rings have stepped ends. and in another, the stepped ends are bevelled. Both rings may be of plain rectangular section, or they may be of the sections shown in Figs. 3 and 6.
Patent GB-631001-A (GB)
Title: Process for the production of organic carboxylic acid anhydrides
IPC: C07C61/22
Filed: 1947-04-02
Abstract: Carboxylic acid anhydrides are produced by heating compounds containing olefinic or aromatic unsaturation with carbon monoxide and carboxylic acids.  Olefinic hydrocarbons of the formula RR1C = CR2R3, where R, R1, R2 and R3 are hydrogen, alkyl, aryl or aralkyl radicals or aromatics such as naphthalene are suitable.  With an acid R4COOH, the olefins yield isomeric anhydrides CHRR1CR2R3COO COR4 and CHR2R3CRR1COOCOR4.  With carbon monoxide and propionic acid, ethylene gives propionic anhydride, while propylene and butylene give corresponding mixed anhydrides. Ethylene with formic or acetic acid yields mixed formic or acetic propionic anhydride; propylene and butyric acid gives butyric anhydride; and isobutylene and isovaleric acid, isovaleric anhydride.  Adipic, benzoic and oleic acids are similarly employed.  Hydrocarbon mixtures such as cracking or dehydrogenation products, diolefins, cyclo-olefins and substituted olefins are generally applicable.  Substituent groups unreactive with the anhydride produced may be present.  Inert gases, e.g. nitrogen or methane, may be present, and a minor quantity of carbon dioxide may be used to suppress hydrogen production by the water-gas reaction if the reactants are not moisture free. Pressure is preferably above atmospheric, e.g. 25-2000 atm. or above, especially 300-1500 atm., at temperatures of about 200-500 DEG , especially 275-400 DEG  C. Suitable catalysts include salts, oxides, hydroxides, metals and carbonyls, particularly nickel carbonyl or substances yielding it. Copper, cobalt and manganese compounds, if desired on inert supports, are also specified.  The reaction products of olefins, carbon monoxide, and water in the presence of nickel carbonyl, obtained as in Specification 630,279, may be used as starting materials if the amount of water present is not sufficient to hydrolyse the anhydride formed or the anhydride may be formed directly from olefin, carbon monoxide and water, the water first being converted to acid.  For vapour phase reaction, a reactor containing absorptive material such as silica gel or charcoal may be used. In examples, ethylene, propylene or naphthalene is reacted with carbon monoxide and propionic or acetic acid, nickel carbonyl, formate or propionate or cobalt propionate being added as catalyst.
Patent GB-609877-A (GB)
Title: New and improved packing materials
IPC: F16J15/10
Filed: 1946-03-22
Abstract: Packing material having the qualities of stiffness and resistance to humidity and warmth is obtained by cutting up filaments, threads, yarns or woven fabrics composed of highly polymeric linear esters produced by heating one or more glycols of the series HO(CH2)nOH, where n is greater than 1 but not exceeding 10, with terephthalic acid or an acid-forming derivative thereof; the preferred ester being polyethylene terephthalate. The packing can be used for heat or sound insulation or as a filling for upholstered or padded articles.  Yarns for subsequent cutting may be made by twisting continuous filaments or by spinning staple fibres produced from short lengths of crimped filament.  Specifications 533,307, 536,379, 536,380, 578,079 and 588,411 are referred to.
Patent GB-1083989-A (GB)
Title: Improvements in and relating to the electrodeposition of silver-antimony alloys
IPC: C25D3/64
Filed: 1965-03-02
Abstract: A hard silver-antimony plate is formed using as electrolyte a silver salt solution to which is added a complex of antimony made by mixing an alkanolamine with an inorganic antimony compound. In examples, a bath containing 30 to 35g potassium silver cyanide per litre, fue Na CN, and Na2 Co3 has added to it 0.5 to 1g of a product mode by heating at 40 DEG C. a mixture of 1 mol. Sb Cl3 and 3 to 6 mols. of triethanolamine, methyldiethanolamine, diethanolpropanolamine or like compound.  A small amount of alkali metal selenocyanate is added to improve the lustre.
Patent GB-549160-A (GB)
Title: Improvements in method and apparatus for coating paper
Filed: 1941-07-16
Abstract: 549,160. Coating paper webs. CHAMPION PAPER & FIBRE CO. July 16, 1941, No. 8978, Convention date, July 31, 1940. [Classes 96 and 140] In making castsurface' coated paper, a travelling web 13 is supplied with an excess 21 of coating mixture so that there is an accumulation where the web 13 is pressed against the travelling casting - surface against which the coated surface of the web remains until it has set sufficiently to release itself therefrom. The pool 21 of excess mixture washes air and foreign matter from the nip thus ensuring uniformity of surface. As illustrated coating mixture is applied at 40 and excess collected at 25, the thickness of the coating being controlled by the pressure of springs 14 adjusted at 17, a roll 12a being washed by a water-pool 31. In modifications coating mixture may be applied directly to the " casting-surface " 11 or to the nip where the paper contacts the surface 11, and the roll 12a dispensed with, the pressure roll 32 being used directly to apply the web 13 to the surface 11. Specification 331,578, [Class 96], is referred to.
Patent GB-333885-A (GB)
Title: Improvements in or relating to trees and treeing machines or appliances for boots and shoes
IPC: A43D95/02
Filed: 1929-03-20
Abstract: 333,885. British United Shoe Machinery Co., Ltd., Read, I. L., and Choice, F. C. March 20, 1929. Treeing. - An inflatable foot is furnished with means by which it can be readily applied to and removed from its support in the treeing machine or appliance, inflated or deflated on the support, and removed therefrom without deflation if desired. The support has inflating and deflating means operable as the result of relative movement between the foot and support, and the support is adjustable to different positions. An inflatable foot 1 of leather of rubber has a casing 6 of leather or canvas, and a rigid instep portion 2. The foot carries a disc 12 bored with a passage leading to a valve 14 normally closed by a spring 15. A supporting arm 20 houses a slidable sleeve 21 provided with a head 22 spaced from which is a U-shaped plate 23, the space forming a receiving socket for the plate 12. The sleeve 21 houses a push-rod 29 and is urged outwardly by a spring 21<a>. In line with the rod 29 is a valve 27 pressed on to its seat by a spring stronger than the spring 15. A nipple 30 enters a compressed-air-supply pipe. With the foot in the position shown, movement of the foot to the left causes the rod 29 to open the valves 14, 27 and inflate the tree, which can then be removed, if desired, without deflation. To deflate the foot, the plate 12 is engaged in its groove behind the plate 23 with the toe of the foot downward, and the foot is pressed inwards to cause a fixed plunger 31 to open the valve 14. The arm 20 is pivoted on an axis at the centre of curvature of a segment 55, provided with stops 60 and a number of holes 59 to co-operate with a plunger 57. This plunger may be depressed by a treadle, when the arm can be adjusted about its axis and locked by release of the treadle. In a modification, the foot carries a taper plug 42, Fig. 8, engaging a corresponding socket in a sleeve 21<c> provided with a nut 48 for removing the foot. For inflation, valves 14<a>, 27<b> and their stems fuuction as in the alternative construction. For deflation, however, the foot is pressed inward only a sufficient distance to open the valve 14<a>, and a plunger 53 is actuated to allow the air to escape from the sleeve 21<c>. For locking the arm 20<c> in adjusted position, a segment 55<a> engages a pair of brake blocks 61 slidable to and from each other. These blocks are, normally, drawn together to look the segment by a spring 63, but may be separated, when desired, by a wedge 64 operated by a treadle.
Patent GB-1380134-A (GB)
Title: Data transmission systems
IPC: H04L7/02
Filed: 1972-02-28
Abstract: 1380134 Digital transmission; synchronizing SIEMENS AG 28 Feb 1972 [11 May 1971] 9052/72 Heading H4P To reduce synchronizing delays in a system comprising a number of series connected links, particularly where each may be synchronized independently, comprises a matching circuit connected at the junction of any two links each circuit containing an intermediate store to which incoming signals are fed under the control of a write in pulse train derived from the received train and read out under the control of locally generated clock pulses, with a constant comparison being effected between received and transmitted trains to ensure a steady succession of write in and read out pulses also to provide adjustment of the read out pulse train. The system allows several links to form a continuous link without requiring phase or compensating adjustments to be made for differences in the parameters of the individual links. The arrangement is also stated to prevent loss of time for phasing adjustments through exchanges, i.e. via dialling or switching stages and the matching circuit operates without reference to the type of code that is employed, i.e. the transmission path is code transparent. In Fig. 1 (not shown), terminals (T1, T2) operate through synchronous transmitting devices (DUe) through an exchange (E) also having transmitting devices (DUe) and which is provided with a matching circuit (AnS). If a data link utilizes more than two subsidiary links, a separate matching circuit would be provided following each exchange of interconnection. The matching circuit, Fig. 2, comprises a digit store including two trigger stages K1 K2, two comparators V1, V2 and a clock pulse generator TG. Stage K1 receives data signals from link (TS1) and K2 relays information to link TS2. A recovered timing pulse train T1 is applied to devices V1, V2 for comparison with clock pulses T3, V1 issuing a read-in train T2 to V1. A corresponding read-out train T4 is issued to K2. V1, V2 also emit signals R1, R2 which control the clock frequency T3. Incoming vata is recorded in K1 under the control of train T2 and the next T3 pulse causes data to be transferred into K2. Where T3 frequency is lower than T1 it is possible that there are instances when information is not transmitted as a pulse T4 is not produced in this time hence the information is overwritten. In the disclosure this is detected by V1 and the next pulse T2 is delayed by time Ae. It is advantageous for delay time At to be variable in dependence on the interval to the next pulse T4. Where T3 is too fast this is also recognized in similar manner by V2 and by means of another delay a read-out is not initiated until after write-in of new information. A positive or negative control signal R1, R2 adjusts the frequency of timing pulse generator TG and only after three delays have been recorded to avoid unnecessary adjustment.
Patent GB-883690-A (GB)
Title: Process for manufacturing threaded inserts
IPC: B23G7/00
Filed: 1958-03-21
Abstract: 883,690. Making threaded inserts. PHILLIPS SCREW CO. March 21, 1958 [Oct. 28, 1957], No. 9177/58. Class 83 (2). [Also in Group XXV] A method of making a threaded metal article comprises forming a blank having an enlarged cylindrical head and a cylindrical shank of smaller diameter, feeding the blank through the use of the head to successive work stations, supporting the blank by the head at certain stations during machining operations on the shank and finally severing the machined shank from the head. A blank cut from wire stock is upset to form an enlarged cylindrical head at one end and the remaining shank-forming portion is threaded e.g. by rolling. After further operations on the blank at a number of work-stations to form a threaded insert 10, Fig. 12, the enlarged head 22 is severed from the finished insert by a cut-off tool 50. The enlarged head of the blank is utilized to feed the blank between work-stations and at some work-stations is gripped by a chuck to locate the blank during working. Fig. 5 shows milling cutters 30 which cut keyways 16 while the blank is held stationary by the chuck 28 which grips the head 22. After shaving the head concentrically with the threaded shank while the latter is held in a rotating chuck (Fig. 6, not shown) the blank is bored and back-chamfered by a tool 36, Fig. 7, while located at the same or another workstation. A reduced head portion 14 is formed and the thread removed at a point 38 on the blank by a tool 36, Fig. 8, the blank being located in a rotating chuck 33 by the head 22. While at the same work-station or at a further station the bore is reamed. After re-chasing the external thread (Fig. 10, not shown) the bore is tapped at a final work-station and the finished insert is severed from the head 22. Specification 760,965 is referred to.