baber/WOPTO huggingface dataset:
Patent GB-254019-A (GB)
Title: A new or improved apparatus for the production of curvilinear or concavo-convex articles from blocks of marble, stone or other material
IPC: B28D1/30
Filed: 1925-03-27
Abstract: 254,019. Norman, J. W. March 27, 1925. Turning. - Concavo-convex articles such as wash bowls or lamp shades are cut out of a rotating block c of stone, marble or the like by means of a cutter e comprising several bowl-shaped members and mounted so as to be fed into the block c by rotation upon trunnions l. The cutter may be rotated about its central spindle f, on which the various bowl-shaped members are mounted, by means of bevel gearing o, n. The edge of each bowl-shaped member is formed with teeth or covered with an abrading substance such as carborundum.
Patent GB-176259-A (GB)
Title: Improvements in electric heating apparatus
IPC: D06F79/00
Filed: 1921-03-18
Abstract: 176,259. Muntwyler, E. March 18, 1921. Electric hand-irons; handles; stands for.-An electric heating-apparatus comprises a beating body 1 and a housing 20 for the same, the heating-body having on two different sides means for attaching a handle 5 and electric contact-making means 14, 15 whereby the apparatus may be used as a flat-iron and stand, or as a chafing- dish, or as a bed-warmer or as a foot-warmer according to the arrangement of the handle and electric contacts. In the construction as shown in Fig. 1, the external electric contact pins 18 are adapted to enter either vertical or horizontal insulating sleeves 15 and 14, and the handle 5 is attached either at one end of the body 1 to a threaded pin 12 or to the upper surface of the body by means of a right-angled plate 4 arranged to slide between guides 11 into a recess on the cover 3 of the body and to be locked therein by a latch 8. When the body 1 is used as a flat-iron, the handle 5 and contact pins 18 are connected to the upper surface of the body 1 as shown in Fig. 4, and the housing 20 forms a stand. For conversion into a chafing-dish, the handle 5 and contact pins 18 are connected to the end of the body, as shown in Fig. 5. For using as a bed-warmer, the body 1 is first heated and placed in the housing and the handle and contact pins 18 are detached; for using as a footwarmer the handle and contact pins are connected to the end of the body which is placed inside the housing.
Patent GB-1388771-A (GB)
Title: Lock or cam arrangement for flat knitting machines
IPC: D04B15/36
Filed: 1972-02-24
Abstract: 1388771 Knitting machines UNIVERSAL MASCHINENFABRIK DR RUDOLF SCHIEBER KG 24 Feb 1972 [10 March 1971] 8585/72 Heading D1C A flat bed knitting machine cam carriage comprises a base plate 1 with a plurality of exchangeable cam units each comprising a housing with a guide for a cam which is adjustable and can be locked in a preselected position with respect to the guide. In the lock, units 2, 6, 7, 10, 12, 14 form a cam configuration which actuates long and short butted needles. Unit 2 selects needles and comprises parts 3, 4, 5 parts 3 and 4 being movable between fully-inserted, semi-inserted and non- inserted positions by electro-magnets fastened to the base body 5 and if desired a further fourth position. Unit 6 comprises adjustable needle lowerers 8 which pass the needles to unit 10, which has a plastic base 22, for wrapping. The units are replaceably secured by screws and if unit 10 is not required, unit 11 is substituted and unit 6 replaced by unit 6a a mirror image of unit 7. Adjustment of the cams is obtained by pulses fed to base plate 1 by a trailing cable. The system may be mechanicallyswitchable with electromagnets to hold the positions. Unit 10 comprises a plastic housing 22 having bore holes which guide bolts 28, 29 carrying a cam 30 and biassed by springs 31, 32 so that pins 33, 34 engage the housing. Cam 30 may be held against springs 31, 32 by a bolt controlled by electromagnet 36.
Patent GB-609693-A (GB)
Title: Improvements in or relating to the production of plastic compositions from vinyl chloride copolymers
IPC: C08F8/20
Filed: 1946-03-20
Abstract: Copolymers of vinyl chloride with one or more diesters of an ethylene-a -b -dicarboxylic acid are chlorinated whilst dissolved or dispersed in a liquid vehicle in the presence of water.  By "ethylene-a -b -dicarboxylic acid" is meant maleic and fumaric acids and their substitution products, e.g. citraconic and chloromaleic acids.  Suitable esters are the dialkyl esters. Chlorination may be effected by passing chlorine through a solution of the copolymer in carbon tetrachloride, tetrachloroethane, trichloroethane, chloroform or ethylene dichloride, containing water, preferably at temperatures greater than 50 DEG  C.  Methanol is then used as precipitating agent. Alternatively, chlorination may be effected in emulsion, preferably at temperatures between 70-100 DEG  C. and the chlorinated copolymer precipitated by an electrolyte.  The reactions may be assisted by peroxidic catalysts and/or actinic light.  The products are soluble in esters, e.g. amyl acetate and ketones, e.g. methyl ethyl ketone, to which hydrocarbon thinners may be added.  Such solutions are useful as coating compositions and in the manufacture of films, foils, threads, filaments and sheets. Specifications 466,898 and 581,995 are referred to.
Patent GB-882266-A (GB)
Title: Use of sodium in a process of polymerization
IPC: F16B13/06
Filed: 1960-03-11
Abstract: Ethylene is polymerized in the presence of an inert liquid medium and a catalyst consisting of zirconium tetrachloride, a Grignard reagent, and finely divided sodium.  The Grignard reagent may be methyl, or ethyl, or propyl, or butyl, or amyl magnesium chloride, bromide, or iodide, or phenyl magnesium bromide.  The inert liquid medium may be benzene, heptane, toluene, or xylene.  Specifications 859,696 and 869,391 are referred to.
Patent GB-1163474-A (GB)
Title: Merocyanine Dyes
Inventor: FICKEN GEOFFREY ERNEST
IPC: C09B23/10
Filed: 1967-02-23
Abstract: 1,163,474. Merocyanine dyes. ILFORD Ltd. 15 Feb., 1968 [23 Feb., 1967], No. 8762/67. Heading C4P. [Also in Division G2] The invention relates to merocyanine dyes of the formula wherein R 1  is alkyl or aryl (substituted or unsubstituted), R 2 -R 5  are H, alkyl or aryl and Y is O or S or >C(R 8 .R 9 ) where R 8  and R 9  are H or alkyl. The dyes are prepared by the usual condensation methods and are used to sensitize silver halide emulsions (see Division G2-G3).
Patent GB-988880-A (GB)
Title: Improvements in or relating to hydraulic pumps and motors
Inventor: THOMA OSWALD
IPC: F01B3/00
Filed: 1962-03-07
Abstract: 988,880. Reciprocating motors and pumps. DOWTY HYDRAULIC UNITS Ltd., and UNIPAT A.G. Jan. 28, 1963 [March 7, 1962], No. 8811/62. Heading FIA. [Also in Division F2] In a revolving, axial cylinder block motor or pump of variable stroke, the bearing faces 28 of the slippers 17 are hydraulically balanced against a bearing surface 18 by liquid passing through piston and piston rod bores 35, 36 and entering an annular groove 29, Fig. 2, in slipper face 28 via flow restricting grooves 38. Slippers 17 are slidably located in bores 26 in a drive flange 25. In a pump, the slippers are maintained in contact with surface 18 by piston return springs or by supplying the pump with liquid under low pressure from a feed pump. The cylinder block and valve plate assembly is tiltable about an axis lying in the plane containing the centres of the slipper ball joints to vary the stroke. Grooves 38 may be formed by milling or sawing, the longitudinal tool marks formed thereby being less likely to trap blockageforming particles.
Patent GB-491544-A (GB)
Title: An improved stand or support for drawing boards or other bodies
IPC: A47B27/14
Filed: 1937-03-25
Abstract: 491,544. Folding stands. HENDERSON, R., and WINSOR & NEWTON, Ltd. March 25, 1937, No. 8900. [Class 52 (v)] A folding stand, e.g. for a drawing-board, comprises four vertical legs connected by diagonal members pivoted together by a rod 18 at the point where they cross, the legs being maintained in the open position by swinging bars 8, 13 mounted upon one of the legs at each end and adapted to be positively secured to the other legs. The diagonal members 5, 6 and 14 ... 17 are brazed to the legs and spaced by tubes 19, 20 on the rod 18. Two of the legs have projecting pins 9 adapted to take into holes 10 in plates 11 carried by the swinging bars 8, 13, a latch 11a on the plate engaging a slot in the pin to secure the parts together. The drawing-board rests on the members 5, 6 and may have holes to receive the upper ends of the legs.
Patent GB-353464-A (GB)
Title: Improvements in the synthesis of aromatic compounds at high pressures
IPC: C07C49/83
Filed: 1930-03-20
Abstract: Aurines; hydroxy carboxylic acids; hydroxy ketones; ethers; amines; ureas; amino carboxylic acids; aminoketones; resins.-Organic compounds are synthesized by reacting carbon dioxide with aromatic hydroxy or amino bodies in the presence of metallic halides of the type adapted to promote the Friedel and Craft's reaction under conditions of high pressure and moderate or elevated temperature. Aluminium, zinc and iron halides are specified as suitable catalysts, and pressures greater than 10 atmospheres and temperatures between 80 and 150 DEG  C. as suitable reacting conditions.  The course of the reaction is affected by the pressure and temperature conditions, the duration of the reaction, and the particular catalyst employed.  The following details are recorded :-(1) Phenol in presence of aluminium chloride at 70 atmospheres and 105-110 DEG  yields 4.41-dihydroxybenzophenone and a little aurin; at 90 atmospheres salicylic acid is formed; at 70 atmospheres and 150 DEG  the main product is 2.41- (admixed with some 4.41-)-dihydroxybenzophenone, together with aurin, an isomer of aurin (probably containing one o-hydroxy grouping), and salicylic acid; at 120 atmospheres and 200 DEG  diphenylether is formed: (2) m- and p-cresol in presence of aluminium chloride at 70 atmospheres and 150 DEG  yield m- and p-cresotinic acids respectively: (3) o-cresol in presence of aluminium chloride at 70 atmospheres and 150 DEG  yields a bright red substance (probably an analogue of aurin) and 2.41-dihydroxy-3.51-dimethylbenzophenone (which substance is also prepared by condensing o-cresotinic acid with o-cresol in presence of stannic chloride; it dyes chromemordanted wool a light yellow): (4) b -naphthol and resorcin in presence of aluminium chloride are resinified: (5) aniline in presence of aluminium chloride at 60 atmospheres and 130 DEG  yields diphenylurea: (6) ethylaniline in presence of aluminium chloride at 60 atmospheres and 110-150 DEG yields mainly monoethyldiphenylurea (which is also prepared by condensing phenylisocyanate with ethylaniline at room temperature) together with diphenylurea and diethyldiaminobenzophenone; in presence of zinc chloride at 70 atmospheres and 150 DEG p-ethylaminobenzoic acid is obtained: (7) dimethylaniline in presence of zinc chloride at 70 atmospheres and 150 DEG  yields p-dimethylaminobenzoic acid; in presence of aluminium chloride at 65 atmospheres tetramethyldiaminobenzophenone, tetramethyldiaminodiphenylmethane and p-dimethylaminobenzoic acid are obtained.  The Provisional Specification is not confined to the treatment of amino and hydroxy bodies, but refers to aromatic compounds generally.  Specification 307,223, [Class 2 (iii), Dyes &c.], are referred to.
Patent GB-729259-A (GB)
Title: Improvements in or relating to optical systems
IPC: G01J1/22
Filed: 1953-03-31
Abstract: 729,259. Optical systems. RADIO CORPORATION OF AMERICA. March 31, 1953 [April 21, 1952], No. 8926/53. Class 97 (1). In an optical system having a plurality of objectives selectively positionable on the axis of the system to form an image of an object upon an image plane, an optical image-relaying system is placed between the said plane and the objective and includes means for controlling the intensity of the light passing to the image plane. The invention is described with reference to the three-colour television system shown which includes light-sensitive tubes 21, 22, 23 on which differently coloured images are formed by light from one of a number of objectives 12, 13, 14 divided by crossed dichroic reflectors 24. The objectives are mounted on a rotatable turret 11 and each is associated with a field lens 16, 17, 18, light from which passes to reflectors 27 inclined to the beam to correct astigmatic errors introduced by the dichroic reflectors 24. Light from the reflectors is collimated by a lens 19 and passed to a lens 20 forming the images on the tubes 21, 22, 23. Between these lenses is an iris diaphragm 28 adjustable from a distance by an electric motor 32 and which also operates a gear 37 moving a variable resistance 39 by which an indication of the size of the diaphragm aperture is given on an ammeter 44. In addition to or instead of the iris diaphragm a pair of rotatable or linearly movable density wedges may be provided between the lenses 19 and 20.
Patent GB-146084-A (GB)
Title: Improvements in and relating to dust proof bearings
IPC: B62D55/15
Filed: 1920-03-26
Abstract: 146,084. Cleveland Tractor Co., (Assignees of Morgan, M. B., and White, R. 1-1.). June 23, 1919, [Convention date]. Stuffing-boxes, substitutes for.-To exclude dust &c. from the bearings of the track wheels of a track-laying tractor &c., two annular flat flexible leather packing-disks 35 secured to opposite sides of the wheel 20 by bolts 38 and washers 36, 37 are pressed into rubbing contact with flanges 32 of collars 30 secured on the fixed shaft 10 by springs 40 embracing the shaft and situated between the wheel and the disks 35. A thin metal ring 35a is interposed between the spring and the disk 35. Each collar 30 is screwed on the shaft. To maintain the collars in their adjusted positions, the shaft 10 is fixed in boxes 50 which are clamped to flanges 52 of the track frame by U-bolts 53. Between the boxes 50 and the flanges 52 are plates 55 through which the U-bolts pass, the inner ends of the plates being bent-up in the form of internally-serrated arches 57. The collar 30 have serrated portions 30a which engage the serrated portions of the arches 57.
Patent GB-448063-A (GB)
Title: Improvements in and relating to the manufacture and production of partly acetylated cellulose threads
IPC: D06P1/651
Filed: 1935-03-22
Abstract: A process for the manufacture and production of cotton or regenerated cellulose fibres resistant to substantive dyestuffs consists in partially acetylating the cotton or regenerated cellulose fibres by treatment with acetic anhydride in the presence of acetic acid and as catalyst--a mixture of zinc chloride and an alkali metal acetate. The required acetylation is effected in a moderately short time without the use of a high temperature and the finished fibres have a high wet tenacity.  In an example 50 ccs. of a mixture of 90 per cent glacial acetic acid and 10 parts anhydrous zinc chloride are mixed with 20 ccs. of a mixture of 90 parts glacial acetic acid and 10 parts anhydrous potassium or sodium acetate and 50 ccs. of 99 per cent acetic anhydride are added.  A 3 gram skein of air-dryed viscose rayon is soaked for 18 hours at 35 DEG  C., in acetic acid of 77 per cent strength, drained, and immersed in the above described mixture for 48 hours at 35 DEG  C.  It is then washed and dried and contains about 30 per cent combined acetic acid.  Another example describes the application of the invention to cotton.  Specifications 5016/07, [Class 2], 280,493, [Class 15 (ii)], and 353,978 are referred to.
Patent GB-311511-A (GB)
Title: Hutches for rabbits and similar small animals
IPC: A01K1/03
Filed: 1928-03-26
Abstract: 311,511. Lyddon, R. B. March 26, 1928. Shelters for animals.-A hutch is provided with a transverse partition d, part of which is slidable on the other part so that communication can be established between the two pens into which the hatch is divided by the partition. At the front and disposed on both sides of the partition is a wire food basket g, which can be filled through an aperture g<2> open at the front, and metal troughs e<4> are disposed in openings e<3> in the doors, which latter are hinged to open outwardly at the ends. The sides, back, and floors are formed of open meshwork, and slidable trays i formed with corrugated surfaces are disposed beneath each floor to collect waste food and the like. The hutches may be superposed and provided with common closures for a number of hutches.
Patent GB-737499-A (GB)
Title: An automatic gain control arrangement using a pilot voltage
IPC: H04B3/10
Filed: 1953-04-01
Abstract: 737,499. Automatic volume control. STANDARD TELEPHONES & CABLES, Ltd. April 1, 1953 [May 14, 1952], No. 9069/53. Drawings to Specification. Class 40 (4). In an automatic volume control arrangement of the type in which the gain of an amplifier, through which both the signal waves and a pilot wave pass, is controlled by the rectified pilot wave, the output current of the amplifier controls the resistance of a variable resistor which forms part of a device separate from the amplifier, which device provides an additional control of the signal level. In a carrier system in which the carrier is transmitted, the carrier may serve as the pilot wave. In the embodiment described, the variable resistor is an indirectly heated thermistor, the heating coil of which is in the cathode lead of a variable-gain valve of the amplifier. The pilot wave is extracted from the output of this valve, rectified and applied as bias to control the gain of the valve. The resistance element of the thermistor forms part of a variable attenuation network which is connected on the input or the output side of the amplifier, and which controls the signal level in the same sense as does the variable-gain amplifier. Such a network may be replaced by another amplifier, the resistance element being connected in its negative feedback path. In a multi-channel system in which each channel of a group of channels includes a pilot-controlled variable-gain amplifier, one of these amplifiers may control the variable resistor which is connected in the negative feedback path of a group amplifier serving the group of channels.
Patent GB-178303-A (GB)
Title: Improvements in or relating to window sash fasteners
IPC: E05C3/04
Filed: 1921-03-24
Abstract: 178,303. Anslow, J. March 24, 1921. Sash and like fasteners, pivotedarm type. - In a sash-fastener of the type in which a plate a on the bottom sash pivotally carries an arm c adapted to engage under a hook member d on the top sash, the arm c carrying a longitudinally - disposed gravity catch e adapted to engage notches f, g in the plate a retain the arm in the engaged or disengaged position respectively, a spring h is provided to swing the arm c into fastening position upon release of said arm from its disengaged position. A projection i on the arm c engages a slot in the plate a to limit the movement of the arm. Specification 16459/87 is referred to.
Patent GB-295218-A (GB)
Title: Improvements in spring suspensions for automobile chassis frames
IPC: B60G11/02
Filed: 1927-04-04
Abstract: 295,218. Bicknell, R. C. April 4, 1927. Springs, arrangement of; axle at- - tachments; equalizing load on springs and wheels.-In a motor vehicle having frame members of inverted V-section, transverse springs at the ends of the frame are connected at their ends to the axles and longitudinal springs located in the frame members have their outer ends connected to the axles near their ends. The frame comprises side members 3. 4, and end members 7, 8 of inverted channel section, the members 3, 4 being also formed with laterally extending flanges 3x, 4x. A transverse spring 9 secured in the channel member 7 is connected at its ends by shackles 10 to the front axle 1 a second transverse spring being similarly mounted at the outer end of the frame and connected at its ends to rearwardly projecting lugs 12 on the rear axle casing. Longitudinal springs 22, 23, preferably having two leaves, are connected at their outer ends to the axles and their adjacent ends are secured in a channel member 24 mounted on a transverse pivot 30 in each side member 3, 4. The transverse pivot 30 passes through a block 28 which has a vertical pivot 29 engaging a strap 26 secured in the member 24, the pivot 30 and the member 24 being loosely fitted in the members 24 and 4 respectively so that the longitudinal springs may swing slightly about a vertical axis. The connection between the longitudinal springs and the axles comprises an axle platform 15, Fig. 5, supporting a rubber block 15<x> which is connected to the platform by a jointed bolt 17. The leaves of the spring 22 rest on a casing 21, the block 15<x>, casing 21 and spring leaves being connected together by jointed bolts 19, 20, the bolt holes in the upper leaf being slotted to permit relative movement of the leaves while the spring as a whole has a cushioned longitudinal movement relatively to the platform 15.
Patent GB-198343-A (GB)
Title: Improvements in means for transferring passengers or goods to moving platforms
IPC: B66B29/08
Filed: 1923-04-03
Abstract: 198,343. Continuous Transit Co., (Assignees of Putnam, H. St. C.). May 23, 1922, [Convention date]. Transferring articles and persons to or from trains and other conveyances in motion.-Passengers, goods, &c. are transferred to an endless platform, running continuously at a relatively high speed by means of auxiliary platforms 20, 2, Fig. 1, driven at slower speeds or by a rotary platform 24, Fig. 6. Each element of the platforms 1, 2, 20 has a longitudinal supporting member 2, Fig. 4, carrying at one end the axle 3 of wheels 4, and at the other means 5 for receiving and being pivotally connected to the axle of the next element. The end 10 of each element is formed as a circular recess to receive the curved end 9 of the next element. The annular platform 24, Fig. 6, rotates about a stationary platform 25, and is provided with curved guide rails 26. A guard rail 30, Fig. 3, prevents passengers boarding the platform 1, except at places where a member 33 attached to the suspension chains 34 is depressed by a cam 32. The platforms aredriven in the manner described in Specification 197,653.
Patent GB-218246-A (GB)
Title: Improvements relating to frames of vehicles running on rails
IPC: B61F5/48
Filed: 1924-04-11
Abstract: 218,246. Swiss Locomotive & Machine Works. June 28, 1923, [Convention date]. Couplings, non-automatic.-The bogie C, Fig. 5, is connected to the intermediate bogie B by a Y-shaped connector 2 pivoted at 3 by horizontal pins and at 5 by a vertical pin passing through a ball-and-socket joint, and the bogie B is supported on slides on the rear axle casing of the bogie C by springs 7, Fig. 4, housed in sockets 6 in an overlapping bracket of the bogie B. In Fig. 1 the coupling is shown connected to a three-part underframe of a rack locomotive without adhesion engine, but it may be applied to a combined rack and adhesion locomotive.
Patent GB-767390-A (GB)
Title: Improvements relating to frames for motor vehicles
IPC: B62D21/02
Filed: 1955-03-30
Abstract: 767,390. Motor vehicle frames. DAIMLERBENZ AKT.-GES. March 30, 1955 [March 31, 1954], No. 9317/55. Class 79(4). The joint between longitudinal and transverse members 1, 10 of a vehicle frame is formed by angle shaped sheet-metal brackets 4, 6 directly secured to the web 2 only of the member 1 and to, respectively, upper and lower parts only of the member 10 so that relative movement between the members is allowed by elastic deformation of the brackets, the limb 7 of the bracket 6 bearing against the flange 8 of the member 1. As shown the transverse member 10 is of hat-shaped section and the members 4, 6, are rivetted to the members 1, 10. The members 4, 6 are arranged in the region of a platform (not shown) supported by the frame, the member 6 extending for a greater length along the member 1 than the member 4, and the ends of the members 4, 6 being bevelled.