baber/WOPTO huggingface dataset:
Patent GB-491161-A (GB)
Title: Improvements in or relating to sheet feed devices in buckle folding machines
IPC: B65H29/00
Filed: 1937-02-27
Abstract: 491,161. Paper - folding machines. COLDITZ, L. Feb. 27, 1937, No. 5981. Convention date, March 23, 1936. [Class 100 (i)] In a buckle folding-machine the cross-feed table following a group of folders 12 incorporates one set of sheet-engaging devices for effecting the movement of the sheets in the transverse direction and another set for urging the sheets in the direction in which they emerge from the folders, the latter set being driven independently and being adjustable to vary the degree of contact thereof with the sheets. The sheets emerging from the folders 12 drop on to the cross-feed table C comprising a series of rollers 17 with axes parallel to the original direction of movement of the sheets and are conveyed by them into another group of folders for imparting perpendicular folds. A registering guide 18 is provided, and the sheets are urged into contact therewith by parts of endless bands 19, the contacting parts being adjustable by means of jockey-rollers 22 carried by levers 23 pivoted on the guide 18 and moved by means of setscrews 26. The bands 19 extend between the rollers 17 and pass around a roller 29 which is driven at an adjustable speed. The bands 19 may be replaced by rotary brushes or rollers.
Patent GB-608542-A (GB)
Title: Improvements in or relating to invalid chairs
IPC: A61G5/14
Filed: 1946-02-26
Abstract: 608,542. Seats. GULL, J. Feb. 26, 1946, No. 5982. [Class 52(ii)] An invalid chair which enables the invalid to move from a seated to a standing position without external aid comprises a seat pivoted at its front edge to a base frame and a back pivoted to the rear edge of the seat and connected by linkage to the base frame so that as the seat is raised about its front edge the back rises at a constant inclination to the vertical. The chair, shown in an intermediate position, comprises a U-shaped base 12 having at each side an upright member 13 to which the seat frame is pivoted at 16. The flanges 15 of the seat frame at the rear are bent downwardly at 18 and a back frame 21 is pivoted thereto selectively by means of a pivot 24 engaging holes 22, 23 in the respective back and seat frames. An adjustable link 26 connects an extension 27 of the back frame to the base frame and constitutes part of a parallel linkage whereby the back frame when rising or falling maintains its angular position. The chair is operated by an electric motor 39 operating, through worm gearing, a rod 36 having connected thereto with lost motion a member 42 having a cross rod 33 The cross rod 33 carries at its ends rollers 34 adapted to ride on fixed ramps 35 and also thrust rods 32 whereby the seat is moved about its front pivots 16. When in its lowest position of use a cross rod 47 on the seat frame seats in crutches 41 on vertical members 40. As the back 19 rises arm rests 48 aid the invalid to assume the standing position. In a modification the chair frame is mounted on wheels and can be raised relatively thereto by means of jacks. In addition a foot rest is provided which in the seating position of the invalid remains above the ground but is lowered thereon as the invalid is raised to standing position.
Patent GB-1198971-A (GB)
Title: Trays for Freeze-Drying Plant
IPC: F26B5/06
Filed: 1969-02-04
Abstract: 1,198,971. Freeze drying trays. LEYBOLDHERAEUS-VERWALTUNG G.m.b.H. 4 Feb., 1969 [7 Feb., 1968], No. 6020/69. Heading F4G. A freeze drying tray (e.g. made of Al) comprises a compartment in which a wall, e.g. partition wall 7 or 8, is provided with one or more shielding elements 9 or 11, the upper surfaces of which diverge downwardly from the wall and the vapour spaces formed under the elements when the tray is filled with loose solid material, communicate with venting openings, chimneys or channels to aid in the drying of the material. In the embodiment of Fig. 2 the partition walls 7, 8 are spaced from end wall of the tray to form venting channels and the end walls also have openings 10. In Fig. 5 the partition wall 7 has venting chimneys 12. The elements on facing walls of a compartment may be symmetrically arranged as in Fig. 2 or staggered as in Fig. 4 (not shown).
Patent GB-878790-A (GB)
Title: Single-seed drill
Inventor: GUGENHAN HEINRICH
IPC: A01C7/04
Filed: 1960-02-22
Abstract: 878,790. Seed sowing machines. GUGENHAN, G., and DIEKEN, P. Feb. 22, 1960, No. 6098/60. Class 6(1). A seed sowing machine comprising a pocketed seed wheel a which passes through a feed chamber c is provided with a deflector f for surplus seeds having one or more deflecting edges f4 which sweep upwards out of the tangential plane of the seed wheel and then curl over backwards beyond the radial direction of the seed wheel in such a manner as to induce a circulating motion of the seed inside the seed chamber. One or more discs g having roughened surfaces are provided and the deflector is arranged to direct seed on to the disc or discs to assist in the circulating motion. A shield h is associated with each disc to cover part of the face of the disc.
Patent GB-1181212-A (GB)
Title: Improvements in or relating to Gas Driven Rotary Devices
Inventor: MAY KENNETH ROWLAND
IPC: B04B9/06
Filed: 1966-02-11
Abstract: 1,181,212. Spray-producers; centrifugal separator. NATIONAL RESEARCH DEVELOPMENT CORP. 13 Feb., 1967 [11 Feb., 1966], No. 6106/66. Headings B2F and B2P. [Also in Divisions Fl and F2] In a gas driven centrifuge or spraying device comprising a rotor with a conical lower surface having reaction surfaces and seating in a corresponding recess in a stator member, the stator member is mounted, to reduce vibrations, on a resilient, liquid damped, bellows. The rotor 14 is driven and supported by compressed air issuing through inclined nozzles 7 in stator 5 and impinging on turbine vanes 16 on the rotor. The bellows 4 is made of thin bronze and is secured at its lower end to a base 1 and at its upper end to a member 3 secured to the stator 5 and also supporting a guide member 10 forming an annular passage 13 for the exhaust air. An outer housing 2 attached to base 1 surrounds the bellows 4 to contain the damping liquid, which has a viscosity of between 500 and 1000 centipoises and may be thick oil, a silicone liquid or a solution of polystyrene chips in dibutyl phthalate. Holes 12 in member 10 permit the flow of exhaust air from passage 13. The compressed air is supplied through rigid tubes 24, 26, 8 and rubber tubes 25, 27 to a chamber 6 within stator 5 before entering the nozzles 7. At normal rotor speeds a subatmospheric pressure exists in the space between the rotor 14 and stator 5 and atmospheric or exhaust air is drawn into the space through a non-return valve 9, improving the stability of the rotor. When the device operates as a spray, a liquid feed assembly is supported above the rotor by legs 17. The assembly is supported above the rotor by legs 17. The assembly comprises a base 18 carrying a glass observation cone 19 and a housing 20 into which is screwed a height adjusting tube 21 containing a needle holder 22 and a needle 23. The liquid from needle 23 is thrown off as a spray from the top of rotor 14, excessively small droplets being drawn off through the gap between the lip 11 of member 10 and a furrow 15 in the rotor by the sub-atmospheric pressure existing below the rotor. The upper surface of member 10 is saucer shaped to assist drainage. When the device is to be used as a wind-tunnel spray, the liquid to be sprayed may be supplied through one of the legs 17 and a liquid pressure bellows provided to automatically adjust the height of the needle holder 22 through a rocker. When the device is to be used as a centrifuge, the liquid feed assembly is removed and the rotor 14 provided with the required mounting. In a modification, instead of the damping liquid surrounding the bellows 4, a casing is provided within the bellows and the liquid is contained between the inner wall of the bellows and the casing.
Patent GB-306837-A (GB)
Title: Improvements in or relating to test sets for locating faults in electric transmission lines
IPC: G01R31/08
Filed: 1928-05-25
Abstract: 306,837. West Manufacturing Co., (Assignees of Anderson, C. A.). July 5, 1927, [Convention date]. Divided on 293,378. Drawings to Specification. Detecting, indicating, and locating faults.- The description and drawings agree with those of Specification 293,378.
Patent GB-491508-A (GB)
Title: Improvements in or relating to the manufacture of pipes of asbestos cement
IPC: B28B21/48
Filed: 1937-03-03
Abstract: 491,508. Asbestos - cement pipes. MAGNANI, A. March 3, 1937, No. 6283. [Class 99 (ii)] Asbestos-cement pipes are made by applying a slurry of the material to a rotatable moulding roller 1, which has a water-permeable surface and to the interior of which suction is applied, and simultaneously calender - ing its surface by an adjustable pressure roller 9 which is rotated at a peripheral speed different from that of the said moulding roller. The surface of the pipe so formed is preferably treated with soapy water to increase its impermeability and then subjected to further calendering before removal of the pipe from the moulding roller for final hardening. The moulding roller may comprise a perforated tube which is closed at its ends and covered with a linen or like filter cloth and is mounted on a shaft through which a suction pipe extends, and the calendering roller may be formed with small circumferential ribs and grooves. The slurry is preferably fed in layers to the moulding roller from a reciprocating hopper 13, having an adjustable discharge opening 18, which runs on rails 16, 17 above the two rollers.
Patent GB-304504-A (GB)
Title: Improvements in or relating to tents
IPC: E04H15/30
Filed: 1928-02-29
Abstract: 304,504. Bleakley, J. H. Feb. 29, 1928. Tents.-A ridge-tent cover adaptable for use also as an awning is made in two parts, one comprising a slope d with triangular end pieces d' to form half of the end surface of the tent and the other comprising a slope c with end pieces c<1> adapted to form the whole of the end surface of the tent. When used as a tent, the large end flaps c<1> are doubled and attached at their centres to the end poles b, but when used as an awning, the large end sections are opened out and attached to the bottom edges of the end sections on the other slope which are raised by extra poles j, as shown in Fig. 1.
Patent GB-880135-A (GB)
Title: Improvements in or relating to the examination of sheet material
Inventor: WINCH GORDON THOMAS
IPC: G01N21/55
Filed: 1959-02-24
Abstract: 880,135. Photo-electric inspection apparatus. GENERAL ELECTRIC CO. Ltd. May 16, 1960 [Feb. 24, 1959], No. 6339/59. Drawings to Specification. Class 40(3). An apparatus for the inspection of sheet material which has a smooth and highly reflecting surface includes a light source, a photosensitive detector to receive light from the source which has been reflected from said surface, and means responsive to the output of the detector to mark the material if a flaw is detected. The sheet material and the detector are moved relative to each other, and in the embodiment described with reference to the Figures the light source comprises a lamp which extends across the sheet and is enclosed in an enclosure having a slit in it. The image of this slit is focused towards a further slit in front of an elongated photosensitive unit which also extends across the sheet. It is arranged that the image does not fall on the second slit, and hence actuate the photosensitive unit, unless there is a flaw in the sheet material. The output of the photosensitive unit controls, via a delay if necessary, a device for marking the material, e.g. with paint, near the edge of the sheet and in line with the flaw. The output may also control a means for sorting faulty pieces of sheet from flawless ones when the material is in plate form. In further embodiments the detector comprises a number of photosensitive units, each associated with a separate marking means so that the sheet is marked near to any detected flaw. Alternatively the detector may scan the illuminated strip of the sheet, the marking means being moved in synchronism with it, or there being a number of marking means which are switched synchronously to the detector output. A cutting device may be included which, in response to the detector output, cuts out any flaw-containing portion of the sheet. To overcome the effect of stray light the light source output is preferably chopped and the detector output passed to an A.C. amplifier. A number of pairs of light sources and detectors may be used, e.g. in echelon formation, to cover the width of the sheet, In yet further embodiments the light source comprises one or more cathode ray tubes, scanned repeatedly to illuminate the surface of the sheet.
Patent GB-267523-A (GB)
Title: Amplifiers for crystal receiving sets
IPC: H01L29/00
Filed: 1927-03-09
Abstract: 267,523. Renaud, C. A. March 9, 1926, [Convention date]. Addition to 263,769. Magneto-microphone relays.-In the construction described in the parent Specification, a stiff spring i engages either the carbon point or the spring d in order to prevent interference by external vibrations. Both the springs i, d are mounted on posts j between spring-pressed washers k<1> and tubes m and are adjusted by means of nuts l. Projections on the springs engage grooves j<1> in the posts to prevent rotation. When the carbon point and the carbon disc on the diaphragm are in contact, the spring i exerts no pressure.
Patent GB-1454723-A (GB)
Title: Internal combustion engine fed with a stratified double charge
IPC: F02M45/00
Filed: 1975-02-17
Abstract: 1454723 Stratified charge engines REGIE NATIONALE DES USINES RENAULT and AUTOMOBILES PEUGEOT 17 Feb 1975 [21 Feb 1974 17 Sept 1974] 6560/75 Heading F1B A stratified-charge I.C. engine is operated by providing as a major portion of the charge a lean mixture of a first fuel and air and injecting into the ignition zone such an amount of a second fuel, that when mixed with the air contained in the lean mixture it forms an ignitable mixture in the ignition zone at the time of ignition. A valve 2 controls the admission of the lean mixture and gaseous hydrogen is supplied through electro-magnetic injector 6 at the end of the compression stroke to form the ignitable mixture around sparking plug 4. The lean mixture has an air fuel ratio of e.g. 22:1. The ignitable mixture contains at least 10% hydrogen. In a modification Fig. 3 (not shown) the sparking plug and injector are in an auxiliary combustion chamber 12 which opens to the cylinder through a restricted passage. To protect the injector nozzle from combustion gases, the injector 6 is screwed into an adaptor 21 which contains a loose ball 23 which can move between a bridge piece 24 and a conical seat 34, against which it is forced by pressure in the cylinder. The injected hydrogen can flow around the sides of the bridge piece 24.
Patent GB-273657-A (GB)
Title: Safety razor with a wafer blade clamped between a cover plate and a guard plate
IPC: B26B21/28
Filed: 1927-03-09
Abstract: 273,657. Schleiffer, M. July 2, 1926, [Convention date]. Razors, of the kind in which the teeth d of the guard vary in length so that the line through the points of the teeth is inclined with respect to the cutting edge of the blade f whereby a shearing cut is obtained, have the upper surfaces of the teeth cut away to provide a shoulder g immediately in front of and parallel with the cutting edge f. As an alternative, the intermediate portions of the length of the teeth may be omitted, leaving only the point portions, which are in this case connected by a bar, so that a slot is provided between such toothed bar and the cutting edge of the razor. A shoulder h may also be provided behind the cutting edge. The upper surface of the guard may be grooved to leave longitudinal ribs k, l, and the cover-plate c may have a shorter radius of curvature than has the upper surface of the guard so that the blade is clamped only near the edges. The teeth shown in Fig. 2 are oblique with respect to the line joining their points, but they may be at rightangles thereto. In alternative arrangements of teeth the longer teeth at one side may be opposite the longer teeth at the other, or one side may have teeth of gradually decreasing length and the other teeth of uniform length.
Patent GB-780519-A (GB)
Title: Improvements in or relating to thermionic valve oscillators
Inventor: COOPER ALBERT
IPC: F16D3/58
Filed: 1955-03-07
Abstract: 780,519. Valve generating circuits. MUIRHEAD & CO., Ltd. March 7, 1955, No. 6638/65. Class 40 (6). A phase-shift oscillator includes a bridge network having two reactive arms 1, 2 and two arms 3, 4 comprising indirectly-heated temperature-sensitive resistors having respectively positive and negative temperature coefficients. The bridge is connected to a two-stage R.C. coupled amplifier V1, V2 with a cathodefollower output stage V3, from which the backcoupling into the bridge network is also obtained. The heaters of the resistors 3, 4 are A.C. energized from a branch amplifier V4 in parallel with the main amplifier. The arms 1, 2 may comprise resistance/capacitance elements or alternatively resistance/inductance elements (Fig. 2, not shown).
Patent GB-431165-A (GB)
Title: The manufacture of new reagents and their applications
Filed: 1934-03-01
Abstract: Quaternary ammonium hydrazides of the formula <FORM:0431165/IV/1> in which R1, R2, R3 and R4 represent alkyl groups, of which R1 and R2 may form with the nitrogen a pyridine ring, and X stands for halogen, are prepared by reacting upon the halides of the esters of betaines with hydrazine or its hydrate.  The esters may first be prepared by treating an ester of an a -halogenated aliphatic carboxylic acid with a tertiary alkylamine or pyridine in equinolecular proportions and the hydrazine added, or the latter may be condensed with an ester of an a -halogenated aliphatic carboxylic acid and the product treated with a tertiary alkylamine or pyridine.  The resulting hydrazides combine with aldehydes and ketones, particularly ketonic sex hormones, to form water-soluble hydrazones which readily regenerate the aldehydes and ketones.  Examples are given of the preparation of (1) trimethylacethydrazide - ammonium chloride by treating ethyl chloracetate with trimethylamine in alcohol and reacting the resulting chloride of the ethyl ester of betaine with hydrazine hydrate, and (2) acethydrazidepyridinium chloride by heating ethyl chloracetate with pyridine in alcohol solution and gradually adding hydrazine hydrate.ALSO:Quaternary ammonium hydrazides of the formula <FORM:0431165/VI/1> in which R1, R2, R3 and R4 represent alkyl groups, of which R1 and R2 may form with the nitrogen a pyridine ring, and X stands for halogen, are prepared by reacting upon the halides of the esters of betaines with hydrazine or its hydrate.  The resulting hydrazides combine with aldehydes and ketones, particularly ketonic sex hormones, to form water-soluble hydrazones which readily regenerate the aldehydes and ketones.
Patent GB-713367-A (GB)
Title: Improvements in the production of stretched fabrics
IPC: D06C29/00
Filed: 1952-03-14
Abstract: 713,367. Stretching fabrics. CELANESE CORPORATION OF AMERICA. March 14, 1952 [March 15, 1951], No. 6690/52. Class 42 (1) A woven fabric of which the warp or weft or both consist of yarns of thermoplastic material is heated so as to soften the thermoplastic material, and the softened yarns constituting the warp or weft, or both, subjected to longitudinal tension so as to stretch the fabric. The fabric is preferably heated by contact with a heated surface, e.g. a smooth surfaced roller, heated internally by gas jets or by electrical resistance coils, but passage through a chamber containing hot air or steam, or infra-red or high frequency dielectric heating may be used. The thermoplastic yarns may have a basis of a thermoplastic cellulose derivative such as an ester or ether, or synthetic linear polymers such as nylon, polyurethanes, vinylidene chloride-vinyl chloride co-polymer, vinyl chloride-vinyl acetate copolymer, polyacrylonitrile and polyethylene. In the case of fabrics containing cellulose acetate, an initial moisture content of 6.5 to 25 per cent. by weight facilitates softening and stretching. Narrow fabrics may be made by slitting the stretched fabric with a hot circular knife, which seals the cut edges. As shown in the Figure, a taffeta-weave fabric, of cellulose acetate yarns is led from a roll 1 round a smooth metal roll 3, heated to 240‹ C. by a gas burner 4, and driven through a reduction gear 5. The fabric is taken up by a rough-surfaced roll 9, driven by a variable speed gear drive 10 at a speed greater than that at which the fabric is delivered to the roll 3, and wound on a contact winding roll 11. The latter is supported on a bar 13 which rides upwards on standards 14 as the diameter of the roll increases. The stretch imparted to the fabric may be 50 to 400 per cent. of its original length.
Patent GB-963097-A (GB)
Title: Impact tool torque limiting control
Inventor: REYNOLDS HAROLD CHARLES
IPC: B25B23/14
Filed: 1963-02-19
Abstract: 963,097. Screwing-up. INGEBSOLL-RAND CO. Feb. 19, 1963, No. 6711/63. Heading B3N. A rotary impact tool comprises a torsion spring 6 adjustable by worm-gearing 15, 17 to limit the maximum torque to a predetermined value. The worms 15 may be moved to sockets 20 to allow the tool to be effective in the opposite direction.
Patent GB-1217696-A (GB)
Title: Electrical signal transmission systems
IPC: H04J3/07
Filed: 1968-02-12
Abstract: 1,217,696. Multiplex pulse code signalling. NIPPON ELECTRIC CO. Ltd. 12 Feb., 1968 [12 Feb., 1967], No. 6733/68. Heading H4L. In a system of the type in which a plurality of relatively low speed P.C.M. signals are combined in time division multiplex on a high speed system and wherein redundant pulses are included in the high speed pulse train to correct for timing errors (pulse stuffing) a plurality of different code signals are used in a predetermined sequence to indicate when pulse stuffing has occured. Fig. 6 (1) shows a main frame of the high speed multiplexed signal having a fivedigit framing code 11 and comprising subframes separated by stuff information codes S1, S2 &c. Each subframe consists of 320 information bits and the codes S1, S2 &c. each consist of five bits. The subframes are divided into 64 five bit time slots each of the five bits being a corresponding information digit of the respective five slow speed systems Fig. 6 (2) shows the composition of a subframe and Fig. 6 (3) shows the digit time positions occupied by the second low speed system. Stuffing is carried out for each low speed system by using one of its available digit time slots, the stuff information codes 12 to 16 indicating whether or not stuffing has taken place for the slow speed systems one to five respectively. For example in Fig. 6 (2) and (3) stuffing takes place at 21 for the second low speed system as indicated by code 52 and is a space when stuffing occurs. Four stuff information codes 11111, 11000,00100 and 00011, 41 to 44, Fig. 6 (4) are provided and are used in rotation and in each case one digit error is allowed so that for code 41 any code in the group 45 is acceptable. Similarly for codes 42, 43, 44 a code in the group 46, 47 or 48 respectively would be acceptable. The transmitter, Fig. 3 (not shown), includes a counter for each low speed system for transmitting the stuff information codes. When no stuffing occurs the previous stuff information code is repeated and when stuffing becomes necessary the next code in the sequence is transmitted. This is detected at the receiver to apply any necessary correction to the de-multiplexed output signals.