baber/WOPTO huggingface dataset:
Patent GB-648474-A (GB)
Title: Improvements in electromechanical delay lines
IPC: H03H9/36
Filed: 1948-02-27
Abstract: 648,474. Electromechanical delay lines. DEPARTMENT OF COMMERCE, DIRECTOR OF THE OFFICE OF TECHNICAL SERVICES OF. Feb. 27, 1948, No. 5952. Convention date, Aug. 1, 1945. [Class 40 (viii)] An electromechanical delay line includes means for adjusting the length of the path traversed by the compressional wave in the mechanical part of the apparatus. In the apparatus shown piezo crystals are used as transducers and the compressional waves pass through a liquid medium in a tank undergoing reflections from the walls in the process. The crystal holders comprise a hollow shaft 22 rotatably mounted in the top wall 10 of the tank and containing mercury in its lower part 32 which is formed of insulating material. The crystal 42 closes the lower end of this channel. and the wall 36 opposite the crystal is sloped to damp vibration emitted from the back of the crystal. Two holders 8 and 12 are mounted in a tank of transmitting medium and by rotation of the transmitter 8 the path of the waves in the medium to receiver 12 may be changed so that different numbers of reflections from the tank walls occur. The receiver 12 is also rotated to receive waves from the different directions corresponding to the different paths.
Patent GB-608543-A (GB)
Title: Antiseptic ice
IPC: A23B4/08
Filed: 1946-02-26
Abstract: An antiseptic ice for use in preserving foods contains a salt of benzoic acid mixed with chloramine T.  The benzoates may be those of sodium, potassium, magnesium or calcium.  Two parts of the salt may be used to one part of chloramine T.  From twelve to forty-eight ounces of the mixture are stirred into a ton of water which is then frozen into cakes annd ground or crushed.
Patent GB-1107005-A (GB)
Title: New organosilicon compounds and compositions containing them
Inventor: BOISSIERAS JEAN
IPC: C08G77/388
Filed: 1966-02-11
Abstract: Novel compounds of the formula <FORM:1107005/C3/1> or <FORM:1107005/C3/2> wherein m and q are integers, p is 0 or an integer, a is 3 or 4, and each R individually is a monovalent hydrocarbon radical, unsubstituted or substituted by groups or atoms that do not interfere with vulcanization of compositions comprising the above compounds and a ,o  - dihydroxydiorganopolysiloxanes, e.g. chlorine, nitro or alkyl substituents, may be prepared by condensing an aldoxime of formula R-CH = NOH, where R is as defined above, with the appropriate Si compound containing Si-halogen bonds, whereby hydrogen halide is eliminated. Specified Si compounds are 1,3-dimethyl 1,1,3,3 - tetrachlorosiloxane, methyltrichlorosilane, 1,2 - bis - (methyldichlorosilyl) ethane and 1,3,5,7 - tetramethyl - 1,3,5,7-tetrachlorocyclotetrasiloxane. An exemplified oxime is that of acetaldehyde; others are mentioned. Reaction is suitably effected in an inert organic solvent, e.g. diethyl ether, under anhydrous conditions and in the presence of an acid acceptor, e.g. a tertiary amine.  Compositions vulcanizable by the action of liquid or vaporous water comprise at least one novel compound as defined above, and at least one a ,o -dihydroxydiorganopolysiloxane of the formula <FORM:1107005/C3/3> wherein R is as defined above, and n is an integer from 10-10,000.  Fillers, e.g. silica, diluents, pigments and catalyst are optional additives.  Films may be cast from such compositions.
Patent GB-347800-A (GB)
Title: Hosiery
IPC: A41B11/00
Filed: 1930-02-25
Abstract: 347,800. Hosiery. CLEMENTS, E. A., 315, Commerce Avenue, Southwest, Grand Rapids, Michigan, U.S.A. Feb. 25, 1930, No. 6248. [Class 141.] The reinforcing 4 at the toe, foot, and heel portions of a fashioned stocking 4 is stopped short of the edges at 5 to expose the web of the stocking and so that the seam 6 will not be thicker than the reinforcing.
Patent GB-672833-A (GB)
Title: Improvements in or relating to master cylinders for liquid pressure braking systems
Inventor: CHOUINGS LESLIE CYRIL
IPC: B60T11/20
Filed: 1950-03-13
Abstract: 672,833. Hydraulic brakes. AUTOMOTIVE PRODUCTS CO., Ltd. March 13, 1951 [March 13, 1950], No. 6258/50. Class 103 (i). In a master-cylinder of the type comprising tandem main and floating pistons 26, 15 forming separate working spaces 32, 23, these spaces communicate with separate chambers 9, 8, respectively, in the reservoir 6, each through an opening fitted with a tilting valve 41 which is held open by the engagement with its stem 44 of the associated piston when in the retracted position. The pistons are formed with annular spaces 29, 22 communicating with the valves, and also with the respective working spaces through passages 31, 21. Rearward movement of the main piston 26 is limited by a stop-ring 34 at the end of the cylinder, and of the floating piston 15 by a stoppin 25 projecting through the cylinder wall. Other forms of valve operated, for example, by cam surfaces on the pistons may be used instead of the tilting valves.
Patent GB-115424-A (GB)
Title: Improvements in or relating to Grinding Mills.
Inventor: SCHAER ALFRED
IPC: B02C1/04
Filed: 1918-04-13
Abstract: 115,424. Schar, A. May 3, 1917, [Convention date]. Crushers with vibrating jaws.-The jaws consist of flat plates 3, 10, and the movable jaw 10 is moved upwards and downwards, and is rocked in such a manner that the space between the jaws is wider at the top than the bottom and vice versa in the upper and lower positions of the movable jaw respectively, while in the middle position the jaws are parallel. As shown, the backing-plate 9 of the jaw 10 is suspended from a lever 12, and is provided with an arm 15 connected by a rod 18 to a crank 19, a finger 20 on the rod being held in engagement with a guide 21 by a spring 17. The upper part of the guide is almost vertical and the lower part is inclined. Lubricant is supplied to the pivot 14 by a wick 25 which dips in a trough 24, and a passage 26 for lubricating the guide 21 is formed in the finger 20. The fast jaw is secured to an adjustable slide 4 which is clamped on the casing 1 bv a screw 6, a stud 5 preventing the slide from being removed. A fine adjustment is provided by means of a differential screw 7, which is threaded into the slide and the casing. The jaws are secured by wedge bolts 23.
Patent GB-100446-A (GB)
Title: A Positively Opening Chuck.
IPC: B23B31/06
Filed: 1916-05-03
Abstract: 100,446. Lees-Bradner Co., (Assignees of Lees, E. J.). May 12, 1915, [Convention date]. Chucks of the bevel closing type have a collet 7 closed by a bevel seating 5 and an axial draw spindle operated by a hand-wheel and nut at the rear of the screw - machine or like spindle. An adjustablypositioned ring 14 has a conical surface 17 to engage a corresponding surface 12 on the collet to secure opening to a definite extent after a predetermined travel.
Patent GB-1066738-A (GB)
Title: Egg cleaning methods and equipment
IPC: A01K43/00
Filed: 1966-02-14
Abstract: 1,066,738. Cleaning eggs. H. Y. KUHL and P. R. KUHL. Feb. 14, 1966, No. 6411/66. Heading A1M. Eggs are destained by subjecting them to a spray of an acidic destaining liquid while they are being rotated. The eggs are loaded on to a roller conveyer 20 at 2 and pass through a washing station 4, where they are sprayed with water or detergent, and a disinfecting station 6 before they reach the destaining station 8 where they are sprayed with an acidic destaining liquid. The destaining liquid drains back into tank 40 from which it is pumped to spray nozzles 44. The eggs are transferred at A-A to a further roller conveyer 22 which conveys them through a rinsing station 12 where they are sprayed with an alkaline solution through nozzles 56 and water through nozzles 56<SP>1</SP>. The eggs then pass to an unloading station 14 and are dried by means of blowers 62.
Patent GB-1269200-A (GB)
Title: Document carrier
Inventor: WOOD DANIEL JAMES
IPC: G06K19/02
Filed: 1971-03-10
Abstract: 1,269,200. Envelopes. D. J. WOOD, and H. E. WOOD. 10 March, 1971, No. 6442/71. Heading B6A. An envelope in the form of a document carrier for processing cheques through automatic magnetic character recognition equipment comprises a flexible transparent front sheet 17, Fig. 2, joined along edges (14, 15, Fig. 1) and a bottom edge by means of an adhesive layer 18 to a rigid transparent rear sheet 16 to form a pocket for a cheque 11 the encoded data on which is printed in magnetic ink on a strip 22 contiguous with the bottom edge, the thickness of the strip 22 being such that as the envelope is advanced by rollers 26, 27, Fig. 5, through the equipment (not shown) the strip is in close proximity of a reading head 28 which is enabled by a photo-electric cell (not shown) responsive to the passage of the leading edge 14. The rear sheet 16 enhances the rigidity of the envelope and the strip 22 is opaque to prevent faulty operation of the photo-electric cell.
Patent GB-546839-A (GB)
Title: Improvements in pressure relief devices
IPC: H01F27/40
Filed: 1941-05-21
Abstract: 546,839. Pressure-relieving devices. BRITISH THOMSON-HOUSTON CO., Ltd. May 21,1941, No. 6502. Convention date, May 22, 1940. [Class 135] A frangible diaphragm pressure relieving device, particularly adapted for use on electrical apparatus has a cover or supporting member arranged above the diaphragm secured in position by means adapted to release the cover or support upon the occurrence of a predetermined abnormal condition of pressure within the casing to which the disc is secured and allow the diaphragm to move into contact with a knife carried by a bar extending across the opening in the diaphragm clamping ring and so initiate the complete rupture of the diaphragm. As shown, the frangible diaphragm 21 of the material known under the Trade name Herkolite' is clamped by bolts 23 between a ring 22 and a ring 16 welded to the casing cover 11 at 17 and 18 a packing washer 24 being mounted in a recess in the ring 16. Collapse of the diaphragm by vacuum in the casing is prevented by bars 27 across the ring 16, while outward movement is limited by bars 30 on a cover 29 held over the aperture in the ring 22 by a frangible pin 31 screwed into a bar 25 extending across the ring 22. A knifeedge 26 extending from a central point to one edge is secured to the bar 25. Upward movement of the cover is limited by a pair of crossed bars 38 welded to a ring 41 mounted on the bolts 23. A skirt 43 welded to the ring 41 encloses the fitting. A movable cover 44 is carried by rods 45 slidable in apertures in the ring 41 and fitted with rubber buffers 46. In a modification the cover 44 is replaced by a pipe bend connected to a pipe leading to the outside of the building.
Patent GB-308304-A (GB)
Title: Improvements in propelling pencils
IPC: B43K21/08
Filed: 1929-02-28
Abstract: 308,304. Felger & Co., Ges. March 21, 1928, [Convention date]. Pencil holders.-A pencil holder is provided with propelling-mechanism in the form of a flat strip of iron 6 twisted into helical form over part of its length, and being actuated for propelling the lead by two slotted caps, one of which 7 acts as a nut and is fixed in the pencil-holder barrel 2, and the other 8 is rotatable but not longitudinally slidable in the end of the barrel. The cap 8 is secured to a rotatable operating-knob 9 The barrel 2 and knob 9 may be encased in celluloid.
Patent GB-862666-A (GB)
Title: Positive double lift dobby motion
IPC: D03C1/26
Filed: 1958-02-28
Abstract: 862,666. Positive double-lift dobby for looms. STAUBLI, R., STAUBLI, H. H., and STAUBLI, O., (trading as STAUBLI & CO. GEB.]. Feb. 28, 1958 [April 5, 1957], No. 6565/58. Class 142(2) A hook 15, which is not engaged by the associated knife 7 and is raised by a needle 11, is held raised and is pressed towards the usual stop 30 for the baulk lever by a member 17. A cam 27 having a recess 29 actuates a follower 20 carrying the member 17 whereby the member 17 is moved towards and away from the stop 30. The knives are moved to-and-fro and rocked slightly to provide a clearance between the engaging faces of the hooks and the knives by mechanism described in Specification 788,910. The member 17 can be adjusted on the follower 20 by a screw 34. In a second embodiment, Fig. 3, a spring loaded member 14 retains each raised hook 13, and a pivoted lever 37 is engaged by a returning knife 8 and moves the members 14 to free the knives. In each embodiment the jack levers 5 are connected to the healds by levers and interengaging quadrants.
Patent GB-667828-A (GB)
Title: Improvements in powder guns
IPC: B65D83/06
Filed: 1950-03-16
Abstract: 667,828. Powder blowers. MORSINK, A. March 16, 1950 [March 16, 1949], No. 6605/50. Class 18 A powder blower comprises two tubes 1, 2 telescopically slidable, the inner tube 2 having a perforated lid 10 and an inverted closed bag 3 secured to the tube by the lower end to form an airtight joint. Powder 12 rests on the bag within the tube. A perforated cover 4 closes the bottom end of the tube. The outer tube 1 has a perforated closure 6 and in one form has a perforated diaphragm 8 of paper forming a non- return valve. On withdrawing tube 1, air is drawn into the space under the bag and on reversing the movement the bag is inflated, forcing the powder out through the lid. In place of the valve arrangement a hole in the side of the tube 1 admits air and is cut off at a certain point by tube 2 when the two tubes are telescoped inwardly.
Patent GB-547773-A (GB)
Title: Improvements in, and relating to, automatic door-closing means
IPC: E05F3/16
Filed: 1941-05-28
Abstract: 547,773. Door - operating appliances PEACOCK, J. May 28, 1941, No. 6813. [Class 65 (i)] A door check comprising a flexible non-extensible band &c. G fixed adjustably at one end to a bracket H on the door frame a<1> and passing round one or more friction drums J, J<1> near the free edge of the door, the other end being then attached to a spring K fixed to the door at a point M remote from the drums. The door is closed by springs E mounted between points D, F on the inner face of the door.
Patent GB-349917-A (GB)
Title: Improvements relating to step-by-step locking means for control levers
IPC: G05G5/02
Filed: 1930-03-01
Abstract: 349,917. Locking levers. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, and WATSON, G. 0., Ferndale, Rainsbrook Avenue, Hillmorton Paddox, Rugby. March 1, 1930, No. 6850. [Class 80 (iii).] In control levers of the type having a catch engaging a notched d quadrant a movablypivoted plate or latch is provided to prevent any notch being passed without first being engaged by the catch. The latch 6 is pivoted by means of a pin and slot, the pin being movable or the slot elongated, to plates 5 mounted on the lever 1. Stops 10 are mounted on one of the quadrants in positions corresponding to the notches in the other quadrant. When the catch 2 has come to rest in one of the notches a pin 12 carried by the catch rests upon a part 7 of the latch, the front of which thereupon rises above the stop 10. A spring-pressed pin 8a engages a slot 8 in the latch and causes the front thereof to move forward and rest upon the stop 10. The lever may then be moved forward again by gripping the hand lever 11. Whenever the latch engages a stop the lever moves forward a distance equal to the play at the pivot, whereupon the catch 2 falls into the notch. Application to controlling gear for ships is mentioned.
Patent GB-127654-A (GB)
Title: Improvements in or relating to Firing Mechanism or Fuses for Explosive Bodies.
Inventor: MCALPINE GEORGE LEONARD
IPC: F42C9/08
Filed: 1917-05-14
Abstract: 127,654. McAlpine, G. L. May 14, 1917. Mines, land and marine. -Relates to time and delayaction fuses for mines and the like, and is shown as applied to projectiles. According to the invention, the firing-mechanism is retained mechanically by means of a soluble member that is placed at the time of setting under the action of a solvent, which slowly acts so that at the end of a predetermined interval the soluble member yields to the pressure of the firing-mechanism which is thereupon released. In the nose-fuse shown in Fig. 1, a spring-urged striker B is held cocked by a transverse pin C, the head of which bears against a soluble disk D. This disk closes one end of a chamber E into which a suitable solvent is introduced before the shell is discharged. Acetone may be used as the solvent when the disk D is made of celluloid. The disk becomes ssoftened, so that at the end of a predetermined interval, which may be considerable, the pin C is unable to hold up the striker, and the shell is exploded. In a modification, the striker is arranged transversely and the retaining pin longitudinally.
Patent GB-583095-A (GB)
Title: Improvements in the manufacture of brushes
IPC: A46D3/00
Filed: 1944-04-14
Abstract: 583,095. Brushes; hand-tool handles. DEVOE & RAYNOLDS CO., Inc. April 14, 1944, No. 6934. Convention date, April 12, 1943. [Classes 19 and 61 (i)] Small brushes, e.g. for applying nail varnish, are made by lightly twisting together a large number of threads under tension and impregnating them for a major part of their length with a composition which hardens to form, with that part of the threads, a rigid handle. The threads may be natural or synthetic fibres or yarns, such as rayon or nylon, or other plastic filaments, and may be treated individually with an adhesive. The composition for forming the handle may be an aldehyde derivative, a " Bakelite " (Registered Trade Mark) or other phenolic resin varnish, or an aqueous solution of methyl cellulose. In the manufacture of such brushes, lengths of fibres or strands of yarn are first assembled to form a rope of suitable length. The rope is stretched between gear-wheels 10, 18 which can be rotated by gears 13, 13a driven by a motor 14, the gear 10 being adjustable into and out of contact with the gear 13. With the latter gears separated, the gear 18 is driven to twist the rope of threads. Both gears 10, 18 are then rotated slowly in unison while the composition is applied by a brush 15 to portions 16 of the rope, leaving shorter portions 17 uncoated. The treated rope is then stretched on a frame 19 and baked until the composition has hardened, after which the rope is cut through the middle of each treated and untreated portion to separate the brushes. In a continuous process for making the brushes, the rope is fed step-by-step and spaced lengths are successively submerged in a bath of composition.
Patent GB-713530-A (GB)
Title: Improvements in or relating to instruments for removing calculus or other deposit from human or animal teeth
IPC: A61D5/00
Filed: 1951-03-22
Abstract: A dental instrument, primarily for descaling animals' teeth, comprises forceps having pivoted jaws one of which is preferably made spoon-shaped to engage over the apex of the tooth while the other is sharpened appropriately for scraping.  The handles are urged apart by a spring and the spoon-shaped jaw may have a central hole which will pass over the tip of a long pointed tooth. The scraping edge may be pointed, square or curved.
Patent GB-1044983-A (GB)
Title: Improvements in and relating to zeolites
IPC: C01B39/02
Filed: 1964-02-19
Abstract: A process for the preparation of crystalline Type Y zeolite having the following molar ratio of constituents in its dehydrated form 0.9\sB0.2 Na2O: Al2O3: XSiO2 where X has a value from 3 to 7, comprises preparing an aqueous reaction mixture containing Na2O, SiO2 and Al2O3, the molar ratios of the constituents being within the following ranges. <TABS:1044983/C1/1> and heating the reaction mixture to a crystallization temperature of 180 DEG  to 250 DEG  F. for at least 24 hours and recovering the crystallized Type Y zeolite product.  The reactants may be mixed at ambient temperature and then the reaction mixture may be maintained at 50-140 DEG  F. for 1-15 hours prior to heating to the crystallization temperature.  The product crystals, after separation from the mother liquor and thorough washing, may be activated by heating to 300-450 DEG C. to remove water of hydration to give an anhydrous product suitable for use as an adsorbent. The zeolites may be subjected to ion-exchange with metal cations of Groups I to VIII and the rare earth metals to give products suitable for use as catalysts.  The ion-exchanged zeolites may be further modified by impregnation with noble metals, e.g. Pd, Pt, Rh, Mo, Cr, V, Co, Ni, Cu, Ag or Mn.ALSO:Crystalline Type Y zeolite having the following molar ratio of constituents in its dehydrated form 0.9 \sB 0.2 Na2O : Al2O3 : XSiO2 where X has a value from 3 to 7 is prepared by preparing an aqueous reaction mixture containing Na2O1 SiO2 and Al2O3, the molar ratio of constituents being within the following range:  .SiO2/Al2O3.3.0 - 9.5 .Na2O/SiO2.0.20 - 0.27 .H2O/SiO2.3 - 10 and heating the reaction mixture to a crystallization temperature of 180 DEG -250 DEG F. for at least 24 hours and recovering the crystallized Type Y zeolite product.  The zeolite may be subjected to ion exchange with a metal cation e.g. of Group I to VIII and the rare earth metals or a hydrogen containing cation e.g. ammonium to reduce the Na content (Na2O) to less than 10% by wt. based on the weight of zeolite crystals to give products useful as catalysts for hydrocarbon conversion processes.  The ion-exchanged zeolites can be further modified for certain applications e.g. hydrocracking by impregnation with a suitable metal e.g. Pd, Pt, Rh, Mo, Cr, V, Co, Ni, Cu, Ag or Mn. Preferably the zeolite are first decationized by base exchange with NH14 or H ions and then heated with the appropriate metal salt or ammonium complex of the metal e.g. ammonium chloroplatinate and palladium chloride and the catalyst will generally contain 0.01 to 5.0 wt per cent of the metal.
Patent GB-869685-A (GB)
Title: Improvements in or relating to the base-sealing of sectional boilers
Inventor: DURDY ARNOLD
IPC: F24H9/06
Filed: 1959-03-02
Abstract: 869,685. Settings for sectional boilers. IDEAL BOILERS & RADIATORS Ltd. Feb. 4, 1960 [March 2, 1959], No. 7166/59. Class 123(2) An expansion joint for sealing the leg end 3 of a number of inverted U-shaped sections 1 of an oil-fired sectional boiler to a flat concrete surface 6 comprises a pair of composite base strips 8 each consisting of sealing material 12 which is formed e.g. of heavy duty asbestos tape impregnated with graphite and is sandwiched between an upper channelled metal plate 10 and a lower flat metal plate 9. The vertically spaced side flanges of each pair of plates 9, 10 are loosely coupled by rivets 15, 16 which are welded to the lower plates 9 and pass through transverse slots 17 in the upper plates 10 with their heads disposed above the latter. In the erection of the boiler two base strips 8 are spaced apart parallel to each other on the surface 6 to support the legs 3. Then an elongated sheet metal angle element 18 is secured by screws 20 to the outer flange of each upper plate 10 to define, in co-operation with the adjacent side wall of the boiler, a chamber for the reception of sealing material e.g. sand 19 which forms a seal between the leg ends 3 and the corresponding plate 10. Spacing bushes, not shown, may be provided beneath the lower webs 22 of the metal angle elements.