baber/WOPTO huggingface dataset:
Patent GB-739987-A (GB)
Title: Improvements in or relating to photographic printing apparatus
IPC: G03B27/02
Filed: 1954-05-25
Abstract: 739,987. Photographic contact printing apparatus. BORAM, F., and PATERSON, D. M. May 25, 1954, No. 15397/54. Class 98 (2). [Also in Group XI] In a printing box 1 having a printing-platen 11 in one face and containing a light source and provided with a pressure plate 13 having a resilient facing pad 14, .a spring element 17 of wire or flat strip is provided along an edge or edges of the printing-platen to hold the photographic materials in position. As shown, box 1 is divided by a fixed screen 4 of opaque material or material opaque to actinic light and a screen 7 of similar alternative materials held by arms 8 pivotable about pivots 9, so that on depressing member 15 screen 7 is raised towards the lid 2 of the box. Actinic light from a source in chamber 5 is then incident on light-diffusing platen 11. Control member 15 may be so disposed that it is depressed by the pressure plate 13 as this reaches the end of its movement. The holes in the lid 2 through which the wire 17 passes are of somewhat larger diameter than the wire and the ends of the wire are secured by curving them round bushing 18. The whole box structure may be made of synthetic plastic material which transmits yellow to red light and provides a dark-room safelight.
Patent GB-195579-A (GB)
IPC: H02K21/48
Filed: 1922-06-01
Abstract: 195,579. Fahrzeugfabrik Eisenach Zweigniederlassung der Gothaer Waggonfabrik Akt. - Ges. Gotha. March 31, 1922, [Convention date]. Magneto-electric machines.-A magneto for the ignition cf internal-combustion engines and for lighting purposes on motor vehicles is provided with a large number of permanent magnets 3 so that, even at low speeds, a sufficient voltage is, impressed on a transformer 48 directly placed in the armature circuit to provide ignition through the distributor 36. The transformer has two primary windings and the coils of the armature 12 are in two sections connected to the primary windings at the terminals 16, 17 by the leads 13, 15 and thence to switch contacts 22, 23. Each section of the armature is thus connected in series with one primary winding and one of the lamps 29, 30, the lead 14 serving as an equalizing lead. In a modification, the lamps 29, 30 may be arranged in parallel with the primary windings of the transformer 48. By rotating the switch 24 through 90‹, the primary coils of the transformer are placed in series across the armature. A number of earthed lamp circuits may be provided having tappings from the stator winding 12 with a return and balancing lead also connected directly to this winding. A rectifier 42 may be connected to the terminals 16, 17 to charge an accumulator 43 which supplies lighting current to lamps 46, 47 when the engine is stationary.
Patent GB-529208-A (GB)
Title: Improvements in and relating to magnetic apparatus for adjusting mechanism within a sealed casing
IPC: F25B41/06
Filed: 1939-05-24
Abstract: 529,208. Spanners &c. BRITISH THOMSON-HOUSTON CO., Ltd. May 24, 1939, No. 15454. Convention date, May 25, 1938. [Class 61 (iii)] [Also in Group XXIX] A screw or other adjustment of mechanism within a sealed casing is effected, and the mechanism locked in the adjusted position, by movement of a magnetic hand-tool on the outside of the casing. Fig. 3 shows the invention applied to means for adjusting the loading of a valve 23 regulating the flow of liquid refrigerant from the condenser to the expansion coils of a refrigerator. The valve is closed by a spring 29 which is opposed by a smaller opening-spring 30, adjustment of which is obtained by means of a screw 49 engaging a nut 51. The screw 49 is rotated through gearing 60, 61, 64, 65, the lastmentioned being carried by a spindle 66 and connected to a flexible disc 67 carrying a softiron armature 34. A projection 68 on this armature is adapted to enter one of a series of holes in a fixed disc 70, so as to lock the adjustment. The tool, shown in Fig. 2, comprises an annular member 74 adapted to fit over the top of the casing 33 containing the screw to be adjusted, a handle being provided at 76 and a highlymagnetized ring at 32. When the tool is placed over the casing as shown in dotted lines in Fig. 3, the ring 32 is above the armature 34 and therefore lifts this out of its locking-aperture. The tool is then rotated, thereby adjusting the screw 49 to the desired amount, which is indicated by a pointer 83. The valve 23 is controlled by a fluid thermostat which is connected at 20 and influences a bellows 26. The magnetic ring 32 may be made of an alloy of aluminium nickel, and cobalt, known as alnico. Specifications 313,638, [Class 135], and 430,826, [Group XX], are referred to.
Patent GB-1263563-A (GB)
Title: Optical measuring apparatus
Inventor: SICK ERWIN
IPC: G02B27/00
Filed: 1969-03-25
Abstract: 1,263,563. Photo-electric measuring arrangement. E. SICK. March 25, 1969 [March 26, 1968; March 6, 1969], No.15523/69. Heading G1A. In an optical measuring apparatus in which a measuring beam is transmitted by way of a reflector 34, Fig.1 whose dimensions are smaller than the cross-section of the beam to a photo-electric device 40, the beam path includes an apertured diaphragm A the image A<SP>11</SP> of which is focused in the plane of the reflector. The arrangement provides for uniformity of reflected light irrespective of the reflector position relative to the axis of the beam and to enhance this, afield stop device 26 the degree of absorption of which varies over the cross-section is introduced in the beam path so that less illuminated zones of the beam, arising from for example a filament, are not used. A reference beam is also applied to the photo-electric device via mirrors 18, 22, 62, and 64, and lenses 48, 58, 36, and 38 both beams being chopped by apertures 54, 56 in a rotating disc 50 to produce signals in the detector identifiable by their frequency. In a modification described with reference to Fig.2 (not shown) the image of aperture A is formed in the plane of two mirrors in parallel beam paths and the reflected lights are reflected further to a common detector. Optical beam alignment means may be provided and the arrangement may be used in visibility or smoke measuring.
Patent GB-283066-A (GB)
Title: Improvements in and relating to tobacco pipes
IPC: A24F1/00
Filed: 1927-06-13
Abstract: 283,066. Barnby, H. G. June 13, 1927. Tobacco pipes.-An opening 8 of slightly less diameter than the smoke bore 6 is provided in the underside of the stem 5 of a pipe to receive a piece or plug 9 of cottonwool or other absorbent material adapted to project across the smoke bore. The opening 8 may be closed by a plate 10 pivoted at 11 and provided with a small opening through which the condition of the plug can be observed.
Patent GB-715264-A (GB)
Title: Improvements in or relating to animal traps
IPC: A01M23/26
Filed: 1950-12-23
Abstract: 715,264. Animal traps. GLEN, M. A. March 24, 1952 [Dec. 23, 1950], No. 15751/50. Class 5 (1) In an animal trap of the kind in which a spring-actuated arm is rotated against the action of the spring in the plane of a frame and held in rotated position by means of a catch pivotally mounted on the frame, the catch is released by means of a trigger arrangement which includes a release arm slidable in the direction of its length along one side of the frame. In the form shown, the frame 3 is of L-shape and supports a coil spring 2, one end 1 which is extended to form a striker arm. The arm is held in set position by a projection 11 on a catch 10 pivoted on a pin 12 which has a conical end acting to deflect the arm past the, projection 11 when it is released. The catch is held in engaged position by a member 13 slidable in the direction of its length, to the extent permitted by a pin-and-slot connection 14, along the arm 3a of the frame 3. The lower end of the member is connected to the short arm of a bell crank lever 14<SP>1</SP> pivoted to the frame, a trip-wire 15 bridging the frame being connected to the other arm of the lever 14<SP>1</SP>. The frame is fixed to the ground by a spike 8.
Patent GB-1005918-A (GB)
Title: Massaging device
IPC: A61H23/02
Filed: 1961-05-01
Abstract: 1,005,918. Massage appliances. M. CHODOSH. Dec. 12, 1961. [May 1, 1961], No. 15764/61. Heading A5R. A massaging device comprises an electricallyoperated vibrator, an elongated carrier arm which is secured to the vibrator and is arranged to vibrate with it, and a pair of shock massaging members spaced apart along the carrier arm and positioned to correspond to the female bust. As shown, a vibrator 1 is fixed to the middle of the bar 2 carrying adjustably at each end a cup 3 containing a smaller cup 16. A harness may be fitted for enabling the appliance to be supported around the neck. The vibrator comprises a base position 12 which is cast integrally with cylinders 4 and 6, and which is secured to arm 2 by screws 10. Cylinder 4 houses a battery 5. Cylinder 6 houses an electric motor 7 which is driven by battery 5 and which has mounted eccentrically on its shaft a weight 8.
Patent GB-280979-A (GB)
Title: Multiple blade saw frame for marble and stone sawing
IPC: B28D1/06
Filed: 1926-06-23
Abstract: 280,979. Maggi, E. June 23, 1926. Sawing.-A multiple-bladed saw frame M is suspended at one end from the central eccentric portion of a cranked shaft A which reciprocates the frame. A second support for the frame is provided by short links P at its middle point, or by a second cranked shaft A' at the further end, rotated oppositely to the shaft A.
Patent GB-449715-A (GB)
Title: Improvements in baggage racks
IPC: B60R5/00
Filed: 1935-05-30
Abstract: 449,715. Vehicle luggage-carriers. TIPSON, G. S., 2535, Farwell Avenue, Chicago, U.S.A. May 30, 1935, No. 15818. Convention date, June 11, 1934. [Class 103 (ii)] A luggage-carrier comprises a rack supported in an elevated position by means on the rack arranged to rest loosely on the floor and engage loosely under the front seat of an automobile. As shown, the rack comprises a framework composed of three L-shaped bars 10 connected by transverse members 12 and the supporting means is formed by extending the two end bars 10 downwardly and forwardly at 13, 14 to provide a floorengaging portion 15 and a seat-engaging portion 16. An additional support comprising an adjustable, two-part leg 17, 18 fixed to the central bar 10 and having a groundengaging foot 21, is provided for heavy loads. To enable the portion 14 to fit under seats of varying heights from the vehicle floor, setscrews equipped with lock-nuts may bo screwed therein.
Patent GB-164749-A (GB)
Title: Improvements in or relating to the hardening of steel and to hardened steel articles
IPC: C21D8/00
Filed: 1921-06-08
Abstract: 164,749. Aktiebolaget Svenska Kullagerfabriken, (Assignees of Hultgren, A. G. E.). June 15, 1920, [Convention date]. Balls; bearings; cutlery and like blades.-In a method of hardening ball and roller bearings, balls for testing machines of the Brinnell type, razors and other edged tools and other steel articles, the article is first hardened by heat or other known treatment and is then without subsequent annealing other than tempering further hardened in the cold state by mechanical pressure, blows or the like. The article may then be tempered, if desired, a low tempering heat being preferably used, for relieving stresses of working. The method particularly relates to the mechanical hardening of steel at and adjacent the surface of articles, which have been previously hardened by heat treatment and preferably ground and polished orotherwise reduced approximately to finished form. In making ball or roller bearings, the balls and bearing rings may be first hardened by heat treatment, then assembled, and subjected to overload, preferably ten times the rated capacity, while rotating, so as to deform permanently and harden both the balls and rings adjacent the surfaces. The rings and balls may be mechanically hardened separately. In hardening the rings, previously hardened rollers may be applied to the rings individually or balls applied between the rings. In making razor blades &c., portions of the surface are ground and polished after mechanical hardening, being ground preferably prior to final tempering and polished subsequently thereto. Specification 12098/04 is referred to.
Patent GB-532866-A (GB)
Title: Treatment of black liquor soap
IPC: C07C51/48
Filed: 1939-05-30
Abstract: 532,866. Acids from black liquor soap. AMERICAN CYANAMID CO. May 30, 1939, No. 15856. Convention date, June 8, 1938. [Class 2 (iii)] [Also in Group III] Mixture of fatty acids and rosin acids from black liquor soap are separated by forming a hot substantially dehydrated solution of the rosin acids and of the salts of the fatty acids in a solvent particularly amyl alcohol in which the fatty acid salts are soluble hot but not cold and in which the rosin acids are soluble both hot and cold and then cooling the solution to precipitate the salts of the fatty acids. The mixture of fatty acid salts and rosin acids may be prepared from mixture of the two acids either by treating black liquor soap with an acid such as sulphuric acid in an amount sufficient only to liberate the rosin acids, or by treating the soap with an amount of acids sufficient to liberate both fatty acid and rosin acids and then adding sufficient alkali to neutralize only the fatty acids. The black liquor soap is preferably purified to remove lignens and sulphur compounds prior to the process of the present invention by first dissolving in water and reprecipitating one or more times by adding caustic soda and sodium sulphate. In the preferred form of the invention the purified black liquor soap is converted to talloel by treatment with sulphuric acid and this partially neutralized to form fatty acid salts which are then separated from the free rosin acids and the unsaponifiable fat by precipitation from amyl alcohol under substantially anhydrous conditions. The filter cake of fatty acid salts which results after the separation of the rosin acids is washed with a further amount of solvent, and then if desired converted to the free fatty acids by treatment with sulphuric acids. The free fatty acids so obtained are preferably then purified by vacuum distillation. The main acids and neutral fat are recovered from the amyl alcohol filtrate from the fatty acid soap filter cake, by adding an amount of sulphuric acid slightly in excess of that necessary for neutralization, removing the amyl alcohol by direct distillation and the excess of sulphuric acid by washing with water, and finally separating the rosin acids from the neutral fat by dissolving in naphtha and extracting with 4 per cent. aqueous caustic soda. The neutral fat which remains in the naptha solution contains a high percentage of phytosteols together with some hydrocarbons. The aqueous alkali solution of rosin acids (principally abietic acid) is diluted with naphtha, acidified with sulphuric acid and the naphtha solution of free rosin acids separated and then purified by agitation with kieselguhr to remove a sludge of water and sapinic acids. These sapinic acids are dark oxidized and polymerized rosin acids. The rosin acids so obtained may be further purified by treatment with extractants such as furfural or resorcinol or with absorbants such as charcoal or clays.
Patent GB-938220-A (GB)
Title: Improvements in or relating to television cameras
Inventor: PARRETT CHARLES MANFRED CAMPBE
IPC: H04N5/235
Filed: 1959-05-08
Abstract: 938,220. Television. PYE Ltd. May 5, 1960 [May 8, 1959], No. 15902/59. Drawings to Specification. Class 40 (3). [Also in Group XL (c)] In a television camera incorporating a pick-up tube of the image converter type having a photo-cathode on which the optical image is focused, the emitted electrons being focused on to a storage target which is subsequently scanned to derive picture signals, the sensitivity of the camera is controlled by pulsing the photo-cathode relative to the accelerating electrodes of the tube with voltage pulses of variable width whereby the emission time of the photocathode during each frame period may be controlled, each pulse being produced by the trailing edge of a pulse which commences with the onset of the frame suppression period and has a duration less than 1400 microseconds so as to terminate in the frame suppression period. The onset of the pulse thus occurs during the frame suppression period and the end of the pulse is preferably arranged, with the aid of a horizontal triggering pulse to occur during a line suppression interval with the object of preventing the introduction of a transient in the picture signal. Provision is made for adjusting the pulse amplitude independently of its width to permit the focus of the tube to be controlled. A detailed circuit for generating the pulse is described (see Group XL (c)). Reference has been directed by the Comptroller to Specification 735,562.
Patent GB-858522-A (GB)
Title: Water lubricated bits
IPC: E21B10/24
Filed: 1958-05-19
Abstract: 858,522. Borehole apparatus. SMITH OIL TOOL CO., W. C. May 19, 1958 [June 10, 1957], No. 16051/58. Class 85. A water lubricated drill bit has a roller bearing 15 for the cutter, thrust buttons 21, 22, radial bearings 23, 24 and a thrust bearing 16 therefor, the balls of which are positioned through an aperture 17 and are held in place by a plug 18 and a weld 19. Water is fed to the bearings through passages 31-35 and an inlet conduit 25 which is provided with a filter 27 and is filled with gravel or copper-coated steel balls 29.
Patent GB-1012481-A (GB)
Title: New process for mercaptoethylating amines
IPC: G03C5/39
Filed: 1962-04-26
Abstract: Mercaptoethylamines are prepared by reacting a compound containing a primary or secondary amino group with a 2-mercaptoethyl carbamate, e.g. one of formula G[COOCH2CH2SH]n where n is 1 or 2 and when n is 1 G is RNH or R2N wherein each R is C1-18 alkyl or is cycloalkyl; or R1NH wherein R1 is phenyl which may be substituted by halogen or C1-4 alkyl or alkoxy; or ZN wherein Z makes up a 5- or 6- membered ring with the N, the other ring members being C, or C and O or N; and when n is 2 G is -YN(CH2)xNY-, wherein Y is H or C1-18 alkyl and x is 2-18; or p-phenylamine diamino, or piperazino which may be substituted by C1-18 alkyl; or a carbamate of formula GCOOCH2CH2SQ, where G is morpholino, anilino or butylamino and Q is H, or G is butylamino and Q is -COC3H7, -CO2C6H13, -C( = NH)NH2.HCl or -CONHC4H9.  Examples prepare N-mercaptoethylmorpholine from morpholine; other suitable amino compounds include polyamines, polyimines, amino-acids, polypeptides, proteins, aminosugars, deacetylated chitin and gelatin and aliphatic, aromatic and cyclic amines.  The products are useful for stabilizing developed photographic emulsion layers.  Specification 1,012,483 is referred to.
Patent GB-1344240-A (GB)
Title: Shot peening charge and manufacture thereof
IPC: H01P1/213
Filed: 1972-04-07
Abstract: 1344240 Shot peening charge NORTON CO 7 April 1972 [16 April 1971] 16075/72 Heading C4V Grains for shot peening consist of solid spheres of fused bauxite having a microcrystalline structure wherein the average size of the crystals of aluminium oxide is not more than 5 microns, the spheres being capable of passing a 60 mesh Tyler Sieve screen. The bauxite may be Surinam or Arkinsas bauxite and it may contain 2-12% of silica. The spheres are manufactured by melting and atomizing bauxite and air-quenching the atomized mass.
Patent GB-283068-A (GB)
Title: Machine for cutting off lengths or pieces from solid or hollow metal or other bars
IPC: B23D21/04
Filed: 1927-06-17
Abstract: 283,068. Taylor (Birmingham), Ltd., C., and Taylor, L. G. June 17, 1927. Lathes.-In a cutting-off lathe of the kind described in Specification 25223/10, the feed of the tools in the rotary tool-head is brought into operation by hand and continues automatically until cutting is completed when it is automaticallv thrown out of action and the tools are restored to normal position. Two tools d<2>, e<2> are mounted in radial sldies in the head c carried by the rotary hollow spindle a driven by a worm and worm-wheel a<4>. The tool-slides d, e are normally retracted by tension springs on the head and are fed inwardly by chains g<2> passing over rollers g<6> and attached to steel straps g connected to a ring f slidable on the spindle a and rotatable therewith. The ring is displaced axially to feed the tools by a second ring h<3> engaged through a ball-bearing by a ring h<30> which is prevented from rotating by a pin 2 coacting with the machine frame and is operated by pins 9 on a yoke 8 oscillated about trunnions 5 by a toothed quadrant 4 and a worm 20 driven from a worm 17 on the shaft 22. In operation, the work is held in any known form of vice w<2> with the parts in the position shown in the Fig. and with worms on the shaft 22 driving both the spindle a and the worm 20, a hand lever 23 is raised to oscillate the gear casing 21 about the axis of the shaft 22 and bring the worm 20 into mesh with the toothed sector 4. The latter is thereupon oscillated to feed the tools into the work and when the cutting operation is finished an adjustable stop rod 35 on the sector engages a lever 26 and rocks the latter about a pivot 27 to disengage a catch 24, 25 and allow the worm 20 to drop out of engagement with the sector. Should the worm and sector fail to disengage when the catch is released, an arm 30 on the lever 26 is pressed against a bracket 31 on the casing 21 to produce positive disengagement. A spring 28 restores the lever 26 to a position suitable for the catch 24, 25 to be re-engaged when the lever 23 is next actuated. A pin and slot 34 limit the oscillation of the casing 21, and an adjustable screw 15 on the yoke 8 engages a bracket. 16 on the machine frame to limit the oscillation of the sector in one direction. The engaging surfaces of the rings h<3>, f are of part spherical form so that the latter may rock slightly and equalize the pressure on the two tools during cutting. A pulley 36 rotating with the spindle a serves to drive a suds pump.
Patent GB-1298518-A (GB)
Title: Improvements relating to electrical switchgear
Inventor: DOBBIE WILLIAM JAMES
IPC: H02B11/24
Filed: 1970-04-06
Abstract: 1298518 Switchgear structures REYROLLE PARSONS Ltd 5 July 1971 [0 April 1970] 16225/70 Heading H1N A circuit-breaker 1 is mounted on a carriage 2 for movement into and out of a fixed switchgear compartment 3 containing bus-bar terminals 4 and circuit terminals 5 in insulation orifices 4<SP>1</SP>, 5<SP>1</SP>, with movable shutters 40, 41, and a mechanism 10 is provided for correctly locating the circuit-breaker 1 in a selected operating position in the compartment 3 by a retractible locating bolt 50 on the carriage 2 entering a selected one of holes 19, 20, 21, in the mechanism 10. A selector gate mechanism, comprising independently movable gates 24, 25, is coupled to the means for locking the shutters 40, 41, and masks unwanted holes 19, 20, 21, when cutouts 30 on gates 24, 25, are out of register therewith, thus preventing the insertion of bolt 50 and preventing operation of the circuitbreaker lifting mechanism 9 by an interlock (not shown) on carriage 2 associated with the bolt 50. Each locating gate 24 or 25 has three operative positions and selector pins 34A and 34B are movable to move the gates into the selected positions only by removing padlocks 32. Locking pins 31A, 31B, limit the movement of gates 24, 25, and also bare padlocks 32. Earthing spigots 6, 7, are provided adjacent the phase bus-bar and phase circuit terminal spigots 4, 5. Appropriate movement of gates 24 and 25 moves corresponding locking plates 27A, 27B, clear of pins 46 on the circuit and bus-bar shutter operating side plates 43A, 43B, allowing the shutters 40, 41, to be opened by the swinging down of the pivoted side plates 43A, 44A, 43B, 44B, which support them.