baber/WOPTO huggingface dataset:
Patent GB-540932-A (GB)
Title: Improvements in or relating to photographic projection printers
IPC: G03B27/36
Filed: 1940-12-31
Abstract: 540,932. Photographic projection printers; colour photography. KODAK, Ltd. (Eastman Kodak Co.). Dec. 31, 1940, No. 18237. Drawing to Specification. [Classes 98 (i) and 98 (ii)] A photographic projection printer includes means for simultaneously moving a printing gate of constant width and a transparency gate relatively to a fixed exposure objective so that correct focus is maintained as the magnification is changed, and means operated by the movement of the transparency gate to mask the width thereof in inverse proportion to the change in magnification. In addition, means may be provided, operated by the movement of the transparency gate for masking its length in inverse proportion to the change in magnification. Means may also be provided for simultaneously altering the widths of both gates, to alter the shape of the resultant print, whilst maintaining the ratio of these lengths proportional to the magnification. The apparatus in connection with which the invention is described is the same as that described in Specification 540,931, for printing from colour transparencies, in which the transparency gate is horizontal and the printing gate is vertical, and a mirror above the former may be moved to direct the beam from the transparency either horizontally to the printing gate, or in the opposite direction to a viewing position where the masking may be seen. Specifications 540,933, 540,934 and 540,935 also are referred to.
Patent GB-1043395-A (GB)
Title: Mechanical motion device
IPC: B23B29/034
Filed: 1963-05-14
Abstract: 1,043,395. Boring bars. C. MARCHIS. May 14, 1963 [May 14, 1962], No. 18958/63. Heading B3C. [Also in Division F2] A boring head comprises a housing 12, having a shank 14, a dovetail guideway 16 in the housing, a tool holder 20 slidable in the guideway, a tool shank 92 located in one of two bores 94, 96, and coarse and fine adjustment means 30 and 60, for varying the position of the tool holder. The coarse adjustment means comprises a 40 T.P.I. screw 32 having a head 36 with a groove 38 which engages a projection 42 on holder 20, and a nut 44. Head 36 is graduated to form 50 equally spaced divisions, each of which corresponds to a holder movement of 0.00050 inch. Nut 44 has an angled keyway 52 with pins 54 projecting therein. The fine adjustment means comprises a 40 T.P.I. screw 62 having a head 66 graduated to indicate a movement of the tool holder of 0.00005 inch, and a block 74 screwed on to screw 62 and having a key which engages pins 54 and keyway 52, so that, as screw 62 is rotated, nut 44, screw 32, and tool holder 20, are moved axially.
Patent GB-109364-A (GB)
Title: Improvements in or relating to Spring Frames for Motor Cycles and the like.
Inventor: DOUGLAS WILLIAM
IPC: B62K25/28
Filed: 1916-12-20
Abstract: 109,364. Douglas, W., (trading as Douglas Bros.). Dec. 20, 1916. Spring devices.-In spring frames for motorcycles &c. wherein a frame carrying the rear wheel is pivoted to the lower part of the main frame and resiliently connected above to the seat tube, the resilient connexion is afforded by a cylindrical helical compression spring arranged substantially at a right-angle to the seat tube and as near as possible to the pivot. The wheel frame C is pivoted at D to a triangular socket piece E connecting the bottom tube A of the main frame to the seat tube B, and the helical compression spring J is held in seatings F, G by plugs H. The pivotal joint may be of the construction described in Specification 104,582 or 104,781.
Patent GB-596061-A (GB)
Title: Improvements in or relating to rotatable tables with work holders for use in machining repetition parts
IPC: B23Q3/08
Filed: 1945-07-17
Abstract: 596,061. Work-holders ; turrets. PENNY, F. G. July 17, 1945, No. 18277. [Class 83 (iii)] In a pneumatically-operated work-table, each work-holder takes a number of pieces which are located by fixed and adjustable facing members and gripped by a common locking-bar fitted with rocking facing members. The table comprises a base-plate 1, Fig. 2, with a central housing in which are pneumatically-operated pistons 14 connected to toggles 15 operating a pressure rod 9 for each work-holder. Each pressure rod operates a locking bar 7 fitted with rockers 8 and forming a clamping wall to the work-holder which is fitted with fixed and adjustable facing members 4, 5, Fig. 1, in the side walls 2 and centre wall 3.
Patent GB-507525-A (GB)
Title: Improvements in or relating to the production of sealed joints between glass and metal
IPC: C03C27/04
Filed: 1938-06-20
Abstract: 507,525. Uniting metal to vitreous material by heat. SIEMENS & HALSKE AKT.-GES. June 20, 1938, No. 18315. Convention date, Oct. 9, 1937. [Class 36] A plug-like glass part is sealed to a metal socket by means of an enamel-like layer formed by the action of heat, the seal being effected by the same heat treatment as that which forms the enamel-like layer, or by a continuation thereof, and the whole of the glass part being fused for the production of the seaL The enamel-like layer may be formed from the known ground enamels containing nickel oxide or cobalt oxide or from a glass, similar to that of the plug part, to which such oxides have been added. The layer may be applied as a suspension, by immersion or spraying, to the metal part and then dried and melted down, the glass part being inserted, together, if desired, with a current lead, before the layer has cooled, and heated until fluid. Alternatively, the glass may be inserted prior to melting the enamel-like layer, e.g. as a current lead surrounded by wound or powdered glass. Heating may be effected in an oxygen-containing atmosphere. The enamel coating may, in the case of a discharge vessel, extend over parts of the walls thereof. An enamel-like layer may be applied to the current lead as well as to the metal socket.
Patent GB-596072-A (GB)
Title: Improvements in and relating to means for adjusting magnetic compasses
IPC: G01C17/38
Filed: 1945-07-17
Abstract: 596,072. Magnetic compasses. HUGHES & SON, Ltd., H., PERKINS, D. H., and HUGHES, A. J. July 17, 1945, No. 18316. [Class 97 (ii)] For compensating magnetic compasses, two pairs of horizontally disposed ring magnets are associated to produce horizontal fields at right angles and are mounted for rotation about a vertical axis passing through the compass pivot. To adjust the field strength of each pair, the magnets are rotated simultaneously in opposite directions through equal angles without disturbing the adjustment of the other pair. The magnets d are mounted on bevel gear-wheels,f arranged in pairs to engage bevel pinions g having finger operable means k. The bevel wheels are mounted in a casing having bearings for the bevel pinions g and carrying sliding members to co-operate with serrations on the finger wheels k to secure them. The casing is arranged slidably but not rotatably on the bucket tube b of the compass and has a clamping arrangement a<5> whereby it is secured at a height to provide a field of appropriate strength.
Patent GB-148585-A (GB)
Title: Improvements in metal strengthening plates for use in wooden packing cases, boxes, and the like
IPC: B65D6/36
Filed: 1918-11-09
Abstract: 148,585. Colson, G. F. Nov. 9, 1918. Straps and bands, strengthening. -Metal strips for strengthening the corners and faces of wooden packing- cases, boxes, &c. have prongs a pressed up at right-angles, these prongs being curved in cross-section and being formed with undercut teeth d.
Patent GB-468012-A (GB)
Title: Improvements in and relating to electric gas-blast switches
IPC: H01H33/76
Filed: 1936-07-02
Abstract: 468,012. Gas-blast switches. BRITISH THOMSON-HOUSTON CO., Ltd. July 2, 1936, No. 18402. Convention date, July 2, 1935. [Class 38 (v)] The movable switchmember 3, after separation from the lower fixed contact 5, is drawn through an insulating tube 2 of material capable of giving off arcextinguishing gas when acted on by the arc. The member 3 carries also an insulating piece 4, housed in a capsule 10, which is drawn into the tube 2 for facilitating extinction of small-current arcs. A passage 11 leads from the tube 2 into a cooling device 12 having cooling surfaces for condensing deposit-forming vapours, and forming a chamber in which the drive 24 is housed and into which member 3 enters in opening circuit. The advantage of the arrangement lies in the economy in overall height. A movable isolating contact 16 on the top of device 12 is arranged to open after, and close before, the power switch, its operating member 25 being for this purpose operated from the spindle 23 of the latter. The movable contact is in permanent engagement with the upper fixed contact 5, and the fixed disconnect contact 17 is out of range of the gas issuing from the device 12. The main operating relays of the power switch may be placed on either the contact 17 or the device 12.
Patent GB-910249-A (GB)
Title: Method of manufacturing hermetically sealed exposure devices
Inventor: RAYMOND FREDERICK JOHN
IPC: B23K20/00
Filed: 1961-05-19
Abstract: 910,249. Semi-conductor devices. STANDARD TELEPHONES & CABLES Ltd. May 19, 1961, No. 18471/61. Class 37. [Also in Group XXII] In making an hermetically sealed enclosure for a semiconductor device with a base and a cap, each having a flange of cold - weldable material, only one of the flanges is backed with a permanently attached collar of non- deformable material and pressure is applied between the collar and the other flange to cold - pressure weld the flanges. A copper base 4 with a peripheral flange 6, of a semi - conductor rectifier, is force-fitted on the splines 2 of a steel hexagonal collar 1 so that the upper surface of a ridge 3 thereon contacts the underside of the flange. A silicon element 8 soldered between molybdenum discs 9, 10 is soldered in a well 7 in the base 4 and a flexible lead wire 12 with melted solid ends is soldered to the disc 10. A cap 14 with a copper peripheral flange 16 is placed on the base with the flanges 6, 16 in contact and the wire 12 enters a cavity 21 in a copper member 20 attached to a nickel-iron insert 19 secured in a glass ring 18 in a steel cylinder 17 brazed to a copper member 15. The assembly is placed in a recessed block 26 and an annular rod 27 is caused to cold weld the flanges. Excess flange material is cropped, the member 20 is crimped on the lead 12 and a flexible copper lead 24 is crimped and soldered in the member 20.
Patent GB-388279-A (GB)
Title: Improvements in and relating to recording apparatus
Filed: 1932-06-30
Abstract: 388,279. Recording- apparatus. FABRIQUES DES MONTRES ZENITH, SUCCESSEUR DE FABRIQUES DES MONTRES ZENITH G. FAVRE-JACOT ET CIE, Le Locle, Switzerland. June 30, 1932, No. 18525. Convention date, June 30,1931. [Class 106 (iv).] A device for recording the variations of a variable factor, the working or inoperative periods of machines, &c. is combined in a single apparatus with a recording device or devices adjustable manually on one or other of a plurality of sections of the recordsurface and serving for the supervision of attendants and conditions of machine operation. The two or more marking elements record on a common recording surface driven by clockwork. In the form shown in Fig. 1, the record a of the variable under observation is marked on a travelling strip which is provided with sections I, II, III for particular groups of attendants, in which the attendant records his presence by making a mark b2, b1 &c. in the appropriate section through a slit in the casing. In Fig. 4 is shown a record of the output of an electrical installation as made by a wattmeter and a record of the condition of running or loading of the generator in the sections of the record numbered 0 .. 5. In the form shown in Fig. 6 a record of the times of working and non-operation of a machine is made at a on a clock-driven disc and a record of the group of men on duty is made at b and a supervision record by the attendant is formed by moving the marking element across the record as shown at c. In Fig. 7 is shown a record of the periods of operation and inoperation of a transformer, the various concentric circles numbered 0 .. 5 representing certain loads. The lines c being recorded by the attendant and their extent depending on the observed load. A constructional form of apparatus is shown in Figs. 8, 9 and 10, the main stylus A produces a record a of the running of a machine while the stylus B is used to record the conditions of operation b and the personal attention record c. The stylus points A, B lie on a radial line over a support plate 3 and the arm of the stylus B is U-shaped and passes through a slot 4 in a disc 12. The underneath part 2b of the arm carries a pin B<1> projecting through the casing in a guide slot 6. A cam disc 7 adjustable by means of a lever 8 co-operating with a scale 9 regulates the position of the stylus B. Specifications 27301/10, 209,473, 280,245 and 295,794, [all in Class 106 (iv), Indicating &c.], are referred to.
Patent GB-1049637-A (GB)
Title: New heterocyclic thioketones and their use as vulcanisation accelerators
Inventor: BROWN JOSEPH PATRICK
IPC: C07D339/04
Filed: 1964-05-05
Abstract: Compounds having the formula <FORM:1049637/C2/1> where (a) n has the value 1, and X represents hydrogen or a radical having the formula <FORM:1049637/C2/2> or (b) X represents a salt-forming atom or group and n is an integer determined by the valency of X; and where in each instance R represents an aromatic or aliphatic group are prepared (a) by reacting sulphur with an olefin having the formula R(CH3)C=CH2, or with a precursor capable of giving rise to such an olefinic compound under the reaction conditions, in the presence of an N-alkylated carboxylic amide, e.g. dimethylformamide, or in the presence of an amine and a polar organic solvent, e.g. tetrahydrothiophen dioxide, or (b) by the reaction of a 1-2 dithiole 3-thione derivative with sulphur and/or hydrogen sulphide in the presence of an N-alkylated carboxylic amide or an amine and a polar organic solvent.  In each case the primary product is an amine salt of the 5-mercapto 1,2-dithiole 3-thione, from which the free 5-mercapto 1,2-dithiole 3-thione can be liberated by acidification. The 5,51 - bis - (3 - thione 1,2 - dithiolyl) disulphide may be formed as a by-product of the acidification, but is preferably produced by the oxidation of the corresponding mercapto compound, e.g. by persulphate, hypochlorite, hydrogen peroxide, or oxygen. Specified olefinic starting material are a -methyl styrene, 4 - chloro - a  - methyl styrene, 3 - methyla  - methyl styrene, isobutylene, 2,3 - dimethyl butene - 1, diisobutylene, 2,4,4,6,6- pentamethyl heptene-1,2-cyclohexyl propene-1, 2-benzylpropene-1, and precursors which may dehydrate or dehydrohalogenate in the required manner are t-butanol, and 2-phenyl-propan-2-ol. The compounds may be acidified to form the free mercaptans, or the sodium, copper, zinc, nickel, lead, dimethylamine, cyclohexylamine or morpholine salts may be formed. The group R in the 5,51-bis-(3-thione, 1,2-dithiolyl) disulphides may be phenyl, neopentyl or cyclohexyl.  From 3 to 7 mole of sulphur are preferably used per mole of olefinic compound, and the reaction is generally effected at a temperature of 100 DEG  to 250 DEG  C. for from 6 to 96 hours.  The compounds are useful as accelerators in the vulcanization of natural and synthetic rubbers (see Division C3) and the invention includes the compounds per se except that in which R is phenyl and X is hydrogen.ALSO:A vulcanization accelerator for natural or synthetic rubber comprises a compound having the formula (see Division C2) <FORM:1049637/C3/1> where (a) n has the value 1 and X represents hydrogen or a radical having the formula <FORM:1049637/C3/2> or (b) X represents a salt-forming atom or group and n is an integer determined by the valency of X; and where in each case R is an aromatic or aliphatic group.
Patent GB-680717-A (GB)
Title: Improvements relating to rocket motors
IPC: F02K9/95
Filed: 1949-07-14
Abstract: 680,717. Jet propulsion plant. DE HAVILLAND ENGINE CO., Ltd.. HALFORD, F. B., CLEAVER, A. V., and DOVE, E. B. Aug. 22, 1950 [July 14, 1949], No. 18568/49. Class 110(iii) [Also in Group XXIX] In a rocket motor wherein propellents are pumped into a main combustion chamber 10 and ignited by the products of combustion issuing from a pre-combustion chamber 13, an oxygen bearing gas or vapour is produced for driving the propellent pumps and a portion of the gas or vapour constitutes one of the combustible substances fed to the pre-combustion chamber. A valve 12, for controlling the supply of propellents to the combustion chamber 10, is supplied with hydrogen peroxide and fuel by pumps 15, 21 through pipes 16-19 and 22-24 respectively. The pumps are driven by a turbine 25 actuated by the decomposition of hydrogen peroxide in a generator 26. The generator 26 is recharged with hydrogen peroxide through a valve 33 controlled by a governor 36 on the turbine shaft. The pumps are primed by ejectors 39, 40 which are actuated by hydrogen peroxide drawn off through pipes 41, 42 respectively and are cut out on contact with the resulting delivery. The pre-combustion chamber 13 is supplied with hydrogen peroxide through pipes 27, 45 which have a pressure responsive valve 43 and a pressure responsive element 46 respectively. Fuel is fed to the chamber 13 through an igniting valve 58 and a pipe 28 and is fed to the valve 12 through a valve 59 which is controlled by the element 46. The first and second stage injectors of the combustion chamber 10 receive fuel and hydrogen peroxide through pipes 60, 61 and 52, 53 respectively. A lever 38 controls the governor 36, the valve 58 and the valve 12 which may incorporate the valves 58. 59. Specification 680,718 is referred to.
Patent GB-1107444-A (GB)
Title: New thiepin and oxepin derivatives, their production and use
IPC: C07D409/04
Filed: 1966-04-28
Abstract: 1,107,444. Dibenz-oxepin and -thiepin derivatives. J. R. GEIGY A.G. 28 April, 1966 [29 April, 1965; 1 Dec., 1965; 11 Feb., 1966], No. 18576/66. Heading C2C. Novel compounds of the formula wherein Q represents an oxygen or sulphur atom, X represents a hydrogen atom, a C 1-4  alkyl or C 1-4  hydroxyalkyl group, or an alkanoyloxyalkyl group having, in all, at most 8 carbon atoms, each of Y and Z represents a hydrogen, bromine or chlorine atom or a C 1-4  alkyl or C 1-4  alkoxy group and n represents 2 or 3, and their acid addition salts, are prepared by reacting, in the presence of a basic condensing agent, a compound of the formula wherein Hal represents a halogen atom, with a compound of the formula if desired treating a compound of the Formula I, in which X is hydrogen, with a C 2-4  alkylene oxide, with a reactive monoester of a C 1-4  alkane diol, with a reactive ester of a C 1-4  alkanol or with a reactive ester of an alkanoyloxyalkanol having, in all, at most 8 carbon atoms, and, if desired, converting a compound of the Formula I into an acid addition salt. Starting materials of Formula II are prepared by halogenating the corresponding compounds unaubstituted in the 11-position. Pharmaceutical compositions having anaesthetic-potentiating, catatonic, sedative, relaxing, anti-convulsive, antihistaminic and musculotropic spasmolytic action, for oral, rectal or parenteral administration, comprise a compound of the invention together with a carrier.
Patent GB-195899-A (GB)
Title: An improved ramp for re-railing railway and tramway vehicles
IPC: B61K5/06
Filed: 1922-07-06
Abstract: 195,899. Marchant, W. A. July 6, 1922. Car-replacers.-A ramp for re-railing railway and tramway vehicles comprises a portion for insertion between the rails, and a complementary portion for bridging, and pivoting on them, the arrangement and application being such that, as the wheel is re-railed, the portion between the rails is tilted and eventually withdrawn automatically. The. part a of the ramp is narrower than the width of the wheel and is inserted between the point and stock rail, the head of the ramp b spanning the two rails and resting on them by means of the rib e. Two guide rails f and g are provided, one of which is extended downwardly to form a rib h which bears on the outer side of the stock rail according to whether the ramp is right or left handed. When the derailed wheel has mounted the part a and reached the opposite side of the rib e, the ramp tilts and withdraws the part a from between the points.
Patent GB-1530035-A (GB)
Title: Emission or reception of acoustic radiation with a sonar antenna
IPC: G10K11/34
Filed: 1976-05-06
Abstract: 1530035 Subaqueous transducers; acoustic lenses ETAT FRANCAIS MINISTER FOR NATIONAL DEFENCE 6 May 1976 [27 June 1975] 18689/76 Headings H4J and H4X [Also in Division G1] A sonar antenna 1 comprises an acoustic lens 6 having a focal surface 12 on which is an array of columns 15 of electroacoustic transducers, the array comprising two groups of columns having different resonance frequencies, the columns of the two groups being interspersed. The lens 6 is filled with a mixture of fluorinated and/or chlorinated hydrocarbons and has a 200 degree acoustic window 9 limited by a wall 11 lined with absorbent material 11a. In operation, columns of the two groups alternate and alternate columns of the same group working at the same frequency are operated in antiphase. The columns may be switched in sets for scanning. The antenna gives enhanced resolution and higher contrast images than obtained previously.