baber/WOPTO huggingface dataset:
Patent GB-508421-A (GB)
Title: Improvements relating to drop hammers
IPC: B21J7/44
Filed: 1938-04-23
Abstract: 508,421. Drop hammers. BRETTS PATENT LIFTER CO., Ltd., and PETERS, G. E. April 23, 1938, No. 12241. [Class 83 (iv)] The friction block k for engaging the drum a is mounted on an eccentric n formed on or secured to a spindle m mounted in the arms d, e, f and carrying a bell-crank lever t. One arm of the lever is coupled by a spring x to the arm f and the other arm carries an operating rope v. A plurality of key ways are provided in the spindle to permit adjustment of the lever. The friction block has renewable facings p and is formed with a lug r having a cap q to enable it to be removed from the eccentric. Springs o connected the block to the bar y connecting the arms d, e. The end of the lifting strap passing over the guide pulley g is connected to the member i connecting the arms e, f. Specifications 110,852, [Class 83 (iv)], and 508,422 are referred to.
Patent GB-474959-A (GB)
Title: Improvements in roller-and-trough apparatus for finishing textile fabrics
IPC: H01Q9/00
Filed: 1937-04-29
Abstract: 474,959. Finishing fabrics. GESSNER AKT.-GES., E. April 29, 1937, No. 12290. Convention date, May 16, 1936. [Class 42 (i)] Pressing.-In a roller and trough apparatus the trough b is forced against the roller a by an induction motor, the pressure depending on the strength of the electric current to the motor which is controlled by a stepless voltage changer l. Specification 435,986 is referred to.
Patent GB-216672-A (GB)
Title: Improved means for securing handles to brush heads
IPC: B25G3/00
Filed: 1923-05-08
Abstract: 216,672. Braid, J. May 8, 1923. Toothed and like holding-devices and flange attachments for socket fixings. - A handle is secured in the socket of a brush head, by driving two nails A one into each side of the handle close to the head, and nailing a plate B to the head over the nails A. The plate is recessed for the nails. Specification 2687/88 is referred to.
Patent GB-1482899-A (GB)
Title: Rotary control device
IPC: F16K31/05
Filed: 1976-03-26
Abstract: 1482899 Clutch control NUOVO PIGNONE SpA 26 March 1976 [27 March 1975] 12341/76 Headings F2C and F2L In a manually-operable rotary drive mechanism having a rotary output element 4, an operating hand wheel 1, integral with a cylindrical boss 2, can be coupled to the output element 4 by axial engagement of clutch teeth 3 into recesses 3a, and this axial movement, against a bias spring 9, is obtained by an initial rotary movement of the hand wheel 1, in either sense of rotation, whereby a cam follower 11 is led along an inclined cam groove 10a in a friction ring 10, further rotary movement then effecting drive of element 4 while ring 10 is carried around in rotation, overcoming the friction at its conical surface 10b, and the bias spring 9 is held in axial compression by a sleeve 8 which remains permanently keyed to element 4 by its engagement in recesses 4a. Disengagement can be effected by a simple reversal of direction of rotation of the hand wheel 1, causing cam followers 11 to ride up groove 10a, aided by spring 9. The mechanism may also include an alternative motorized drive input comprising a worm 6 and worm-wheel 5 carrying clutch teeth 7 engaging teeth on the sleeve 8. The initial axial motion of sleeve 8 during the engagement of manual drive causes disengagement of the clutch teeth 7.
Patent GB-669487-A (GB)
Title: Production of polymers of 3-vinylpyrene
IPC: C08F12/32
Filed: 1949-05-10
Abstract: Polymers and copolymers of 3-vinylpyrene are made by heating in bulk, aqueous medium or solvent, e.g. benzene, toluene, xylene and acetone, 3-vinylpyrene alone or admixed with another monomer in the presence of a polymerization catalyst.  Specified monomers are butadiene, isoprene, piperylene, 2-chloro-butadiene-1,3, 2,3-dimethyl-butadiene-1,3, hexadiene-1,5, octadiene-1,4, 2-cyano-butadiene-1,3, styrene, methyl styrene, p-chlorostyrene, di- and trichlorostyrenes, chlorinated methylstyrenes, divinyl and chlorinated divinyl benzenes, vinyl fluorenes, acenaphthylene, divinyl biphenyl, chlorinated vinylnaphthalenes, acrylic and methacrylic acids, acrylo and methacrylonitrile, acrylamide, methacrylamide, methyl, ethyl, amyl, benzyl, p-chlorobenzyl, allyl, and methallyl acrylates, methyl, hexyl, benzyl and allyl methacrylates, methyl-alpha-chloroacrylate, ethyl alpha-bromoacrylate, propyl alpha-chloroacrylate, diethylene glycol dimethacrylate, glyceryl triacrylate, ethylene glycol diacrylate, ethylene, vinyl chloride, vinylidene chloride, fluoroethylenes, chlorofluoroethylenes, diallyl fumarate, diethyl itaconate, diallyl citraconate, methylene methyl malonate, methylene ethyl malonate, diethylene itaconate, dimethallyl maleate, itaconate and phthalate, triallyl citrate and aconitate, vinyl acetate, propionate and butyrate, vinyl methyl ketone, maleic anhydride, vinyl methyl and ethyl ethers, divinyl ether, and N-vinyl-phthalimide.  Catalysts mentioned are oxygen, ozone, ozonides, hydrogen peroxide, hydrochloric, hydrofluoric and sulphuric acids, boron fluoride, stannic chloride, antimony pentachloride, benzoyl, acetyl, stearyl and lauryl peroxides, t-butyl hydroperoxide, 1-hydroxy cyclohexyl hydroperoxide, sodium and barium peroxides, persulphates, perchlorates and perborates. Ultraviolet light may be used with the catalyst.  The polymer and copolymers and compositions thereof may be moulded, extruded, cast into films, used in electrical insulation as impregnants for paper, electrical coils, and fillings for pot-heads and cable joints and if desired the impregnation or filling may be effected by treating the device or material with the monomers or a mixture of partial polymers and monomer and effecting the polymerization in situ.  The compositions may contain plasticizers and fillers such as alpha cellulose, mica dust, titanium dioxide, talc, zinc oxide, magnesium oxide, asbestos, quartz, wood flour, cellulose or wool fibres.  Specification 667,030, [Group IV (b)], is referred to.
Patent GB-612704-A (GB)
Title: Improvements in the processing of hydrocarbons
IPC: C07C5/27
Filed: 1941-09-26
Abstract: Saturated aliphatic hydrocarbons such as n-butane or n-pentane are converted to the corresponding branched chain hydrocarbons or into mixtures containing branched chain hydrocarbons by heating them to 50-300 DEG  C. in the presence of an anhydrous metal halide such as aluminium chloride and in the presence of hydrogen sulphide or inert gases containing hydrogen sulphide as catalyst activating agent.  An example is given of the conversion of n-butane to isobutane, the stream of n-butane containing 17 per cent hydrogen sulphide.
Patent GB-349735-A (GB)
IPC: B41F17/30
Filed: 1930-04-23
Abstract: 349,735. Printing-apparatus. PACIFIC EGG PRODUCERS COOPERATIVE, Inc., 178, Duane Street, New York, U.S.A.-(Assignees of Powell, C. K. ; 18, Luzern Road, Dobbs Ferry, New York, U.S.A.) April 23, 1930, No. 12558. Convention date, Aug. 27, 1929. [Class 100 (ii).] Printing on eggs and the like; hand-stamps.- Apparatus for marking eggs or like articles comprises a number of markers arranged side-by-side and adapted for tilting movement in different planes and relatively to one another. As shown in the form of a portable device, two rows of stamps 17, Fig. 1, are mounted on a frame 10 supported from a handle 12 by posts 11 ; alternatively, the apparatus may be power operated and may comprise a series of frames 10 operated simultaneously or consecutively. Each stamp 17 is made of flexible material such as rubber, and is fixed to or is integral with a sheet of rubber &c. 18 clamped over a metal ring 19 by a cord or wire 40, each ring 19 being suspended from the frame 10 by a series of links 25 passing through apertures 42 in the frame and provided with enlarged ends 43 limiting the downward movement of the stamps under the influence of springs 20. The links 25 arrest the vibration of the springs 20 after a stamping operation; they may be replaced or supplemented by cords or chains. In a modification, a stamp 52, Fig. 7, is carried by a rubber disc 50 provided with a peripheral rib 53 adapted to engage the egg before the stamp contacts therewith and so to prevent relative movement between the disc 50 and the egg while the impression is being printed; the rib 53 may be replaced by a peripheral series of projections. The disc 50 is provided with a flange 53<1> adapted to be sprung into a groove 55 in a metal ring 54 connected to the links 25. To retain all the stamps 17 in one plane for inking, a plunger 16 is provided for each stamp, all the plungers being fixed to a plate 14, Fig. 1, connected by rods 15 to crank discs 13 fixed to the ends of the handle 12, which may be rotated to raise the plungers out of action or lowered to engage the stamps. The plungers are locked in either position of adjustment by a pin 22 normally pressed by a spring 48 into either of two apertures 24 in one of the discs 13 and adapted to be released by a pivoted fingerpiece 23. Inking-apparatus.-The stamps 17 are inked by pressing the device on to an inking-plate consisting of a series of plates 28, Fig. 3, made of glass, metal, or other hard material and supported by springs 27: alternatively a rigid support may be provided for the plates 28 by means of bars 29 hinged to a base member 26 and adapted to be swung up to engage under the plates.
Patent GB-997082-A (GB)
Title: Improvements in or relating to sheet feeding mechanisms for typewriters and like business machines
IPC: B41J13/20
Filed: 1964-03-25
Abstract: 997,082. Typewriters. INTERNATIONAL BUSINESS MACHINES CORPORATION. March 25, 1964 [April 19, 1963], No. 12595/64. Heading B6F. A typewriter is provided with sheet-feeding means comprising a pivotally retractable bail 8, Fig. 1, adapted to coact with a platen 1 and a bail-operating mechanism, including a lever 21, responsive to the leading edge of a sheet 3, Fig. 2, as it is advanced by rotation of the platen and operable during continued operation of the platen first to pivotally retract the bail 8 from the platen to allow the sheet to advance between the bail and the platen and thereafter to advance the bail so that it again coacts with the platen to hold the sheet thereagainst. In operation, the sheet 3 is inserted between the platen 1 and a guide plate 4 which directs the sheet to rear-feed rollers 5, which in turn advance the sheet to front-feed rollers 6. The leading edge of the sheet, which advances tangentially to the platen and operates the control lever 21 which via a link 22 and an arm 23 engages a pawl 16 with a ratchet wheel 19 integral with the platen, whereupon on continued rotation of the platen the pawl 16 which is pivotally mounted on a bracket 15 connected to the bail 8 pivots the bail 8 about its pivot stud 12 to retract the bail from the platen. On passing through a median line a toggle spring 24 throws the bail over the bail being arrested by a portion 25 engaging an abutment 26. Simultaneously the angular counterclockwise movement of the bracket 15 disengages the pawl 16 by means of a flange 27 and engages a pawl 31 mounted on arm 30 of the bracket 15 with the ratchet wheel 19. Further rotation of the platen causes the pawl 31 to rock the bail 8 clockwise about the stud 12, whereupon the toggle spring 24 acts to advance the bail 8 towards the platen. By this time the sheet of paper has advanced sufficiently for its upper portion to lie between the bail and the platen so that it may be engaged by rollers 9 on the bail rod of the bail 8.
Patent GB-945114-A (GB)
Title: Improvements relating to security devices
IPC: E05B35/00
Filed: 1960-04-08
Abstract: 945,114. Two part couplings; key-operated switches. SEWE WING KWAN. June 19, 1961 [April 8, 1960], No. 12686/60. Headings H2B and H2E. A security device comprises an electrical contact carrier of insulating material having holes with spaced fixed contacts housed at different levels therein, and coupling means including a set of contacts movable relatively to the carrier so that the movable contacts engage some of the fixed contacts to complete one or more circuits. In one embodiment (Fig. 1) the movable contacts 26 carried by members 23, 24 are inserted through holes 2 in an insulating block and engage the fixed contacts 6 arranged in slots in the block which communicate with the holes (Fig. 3, not shown) to complete circuits for solenoids 18 e.g., for magnetic looking of doors, lift control or alarm purposes. In further embodiment (Figs. 4 and 5) a cylinder lock is provided with earthed fingers 41 moved by a key 39 to push conducting plungers 36, which move members 33, 33a some of which carry surface band contacts 58, just out of the cylinder 31 to allow it to turn. At the same time the contacts on the members 33a connect fixed contacts such as 53a to the earthed fingers 41 to energize a latch mechanism (Fig. 7, not shown) or other apparatus. Attempts to pick the lock could result in the completion of an alarm circuit connecting contacts such as 53b to energize the alarm system. In a modification (Fig. 8, not shown), a similar mechanism of rectangular section has its plug and block portions freed for separation by lever action of a key.
Patent GB-633883-A (GB)
Title: Repair stand for engines
IPC: B25H1/00
Filed: 1947-05-12
Abstract: 633,883. Work-benches. NORDGULEN, J. L. May 12, 1947, No. 12755. Convention date, Jan. 4, 1943. [Class 61 (ii)] A stand for use in repairing engines, of the kind comprising a pillar 1 carrying a rotary support 8 for the engine, is provided with a tray 10 for holding engine parts and with perforated shelves 19 for tools. The pillar consists of an H-beam enclosed by metal plates and supporting a shaft which has the support 8 at one end and a notched disc 9 at the other, the disc being rotatable by a bar 18 and indexed by a catch lever 13 controlled by either of two treadles 16, 17. As shown, the stand is associated with a second stand 20 adjustable along a base-plate 2, the engine being supported between the two rotary supports 8, which may have transverse bars for this purpose. Brackets 23 on the supports carry a bar 24 on which boring tools can be mounted.
Patent GB-1133843-A (GB)
Title: Improvements in or relating to vacuum-tight butt-joints
IPC: C04B37/02
Filed: 1966-03-23
Abstract: 1,133,843. Brazing. SIEMENS A.G. 23 March, 1966 [24 March, 1965], No. 12760/66. Heading B3R. [Also in Division H1] A method of joining a metal member (3, Fig. 1) to the end of a ceramic tube (1) of different coefficient of thermal expansion from that of the member (3), e.g. in forming a travelling-wave tube, comprises brazing the member (3) to a metallized end of the tube (1) and providing metal strengthening means (4) on the member (3) opposite the brazed joint, the means (4) having a coefficent of thermal expansion at least equal to that of the member (3) and at least one radial break, cut (5) or fold to prevent the member (3) from peeling from the tube during cooling. The strengthening means may be integral with the metal member, or (Fig. 1) attached by brazing. Rings of brazing material are disposed at each face of the member (3) so that in the same operation the member is secured to the tube and to the ring-segments (6), which are held in a jig and separated by gaps (5). The member (3) and strengthening segments may be made of copper and nickel. Alternatively, the segments (6), Fig. 2 (not shown), may be connected at either end by a foil (7), or by narrow strips where the segments are formed by radial cuts (5), Fig. 3 (not shown), extending alternately from the outer and inner circumferences of the strengthening ring (4). In further forms, the joint strengthener comprises a corrugated ring (10), Fig. 4 (not shown), and offset segmental strips (6), Fig. 5 (not shown).
Patent GB-448581-A (GB)
Title: Improvements in or relating to floats for flying machines
IPC: B64C35/00
Filed: 1935-04-30
Abstract: 448,581. Collapsable floats for aircraft. NOJIRI, M., 29, Komagome, Sakashita-cho, Hongo-ku, Tokio. April 30, 1935, No. 12815. [Classes 4 and 113 (ii)] collapsable floats for aircraft are of prismatic shape with walls articulated to one another and contain inflatable envelopes. Fig. 2 shows a seaplane float comprising a fixed bottom wall 2 and a movable top wall 1 articulated by oblique front and rear walls 3, 4, side walls 5 being hinged to wall 2. An envelope 9 is arranged to fit snugly, when inflated, within the float, means being provided under the control of the pilot for supplying air from a wind motor thereto and for exhausting the air therefrom through a pipe 10. Collapse of the envelope when exhausted is assisted by spring-urged members 12. Means for collapsing and re-forming the float comprises a member 7<1>, Fig. 4, adapted to be raised and lowered between guide struts 8 by rack-and-pinion mechanism under the pilot's control which actuates guide plates 17 to which beam 7<1> is secured. Beam 7<1> carries rollers 14 bearing on fixed tracks 20 on wall 1 when expanding the float and on wall 1 itself when collapsing. Upward and downward movement of member 7<1> is arranged to cause upward and downward movement of side walls 5 by respectively tensioning and slacking off cords 6 attached to the side walls and to the inner side of wall 2 respectively and passing over pulleys 15 carried by member 7<1>. The arrangement is such that when tube 7 is in its lowermost position all the float walls are substantially co-planar.
Patent GB-184143-A (GB)
Title: Improved method and means for preparing gold or like capsules for dentist's use
IPC: A61C13/18
Filed: 1922-05-06
Abstract: 184,143. Haizer, C. Aug. 2, 1921, [Convention date]. Teeth, artificial. - Comprises means for carrying out the method of preparing gold and like capsules for dental use, in which a metal disc is positioned upon a previously prepared cast metal facsimile of the tooth and inserted with rubber into a moulding-box disposed beneath the spindle of a screw press. The disc required for the capsules are cut out with a press shown in Fig. 1, to the screw 2 of which are interchangeably and detachably connected a plate 5 for applying pressure in the moulding operation and a cutting disc 9, Fig. 3, co-operating with a die 8.
Patent GB-793025-A (GB)
Title: Apparatus for the continuous mixing and separation of two immiscible liquids of different specific gravities
IPC: B01J19/18
Filed: 1956-04-26
Abstract: <PICT:0793025/IV (b)/1> <PICT:0793025/IV (b)/2> Apparatus for the nitration of glycerine or toluene comprises a contacting vessel 1, Fig. Ia, with stirrer 3, liquid inlets 14, 15, and a rotatable drum 4 open at its lower end into which the mixture from the vessel passes and is separated centrifugally, the heavier liquid being drawn off at 12 and the lighter liquid at 13.  In a modification, Fig. Ib (not shown), the lower end of the drum 4 is above the surface of the liquid in vessel 1 and a slanting open-ended pipe leads from below the level of the liquid to inside the lower part of the drum.  The drum 4 may be provided internally with narrow longitudinal strips to assist rotation of the liquid or with obstructions in its upper part to prevent deposition of solid matter.  Several vessels may be combined for counter-current contacting of liquids in steps.  The apparatus shown in Fig. VI is used for the nitration of glycerine to nitroglycerine.  Glycerine and nitrating acid enter at 31 and 32 and react in vessel A; acid withdrawn at 33 is cooled at 37 and returned to vessel A via line 35.  Nitroglycerine withdrawn from vessel A via line 38 is purified by counter-current washing in vessels B, C, D with liquid introduced at 48.  The nitration of toluene to trinitrotoluene is also described.  Specification 665,921 is referred to.ALSO:<PICT:0793025/III/1> <PICT:0793025/III/2> Apparatus for the continuous contacting of two immiscible liquids of different specific gravities comprises a contacting vessel 1, Fig. Ia, with stirrer 3, liquid inlets 14, 15, and a rotatable drum 4 open at its lower end into which the mixture from the vessel passes and is separated centrifugally, the heavier liquid being drawn off at 12 and the lighter liquid at 13.  In a modification, Fig. Ib, not shown, the lower end of the drum 4 is above the surface of the liquid in vessel 1 and a slanting open-ended pipe leads from below the level of the liquid to inside the lower part of the drum.  The drum 4 may be provided internally with narrow longitudinal strips to assist rotation of the liquid or with obstructions in its upper part to prevent deposition of solid matter.  Several vessels may be combined for countercurrent contacting of liquids in steps.  The apparatus shown in Fig. VI is used for the nitration of glycerine to nitroglycerine.  Glycerine and nitrating acid enter at 31 and 32 and react in vessel A; acid withdrawn at 33 is cooled at 37 and returned to vessel A via line 35.  Nitroglycerine withdrawn from vessel A via line 38 is purified by countercurrent washing in vessels B, C, D with liquid introduced at 48.  The nitration of toluene to trinitrotoluene is also described.  Other processes for which the apparatus may be used are the purification of liquids by washing with another liquid and chemical reactions involving esterification, alkylation and oxidation.  Specification 665,921 is referred to.
Patent GB-440700-A (GB)
Title: Improvements in or relating to ash trays
IPC: A24F19/04
Filed: 1935-05-01
Abstract: 440,700. Table indicators for summoning attendants. GAUNT, C. F., Warstone Parade Works, Birmingham. May 1, 1935, No. 12937. [Class 118 (ii)] [See also Group VI] A shallow ash-tray 5 has secured to its base a pedestal or rod 8 having a knob or enlargement 11 at its upper end, and a cover 12 slides on the rod to cover or expose a no-fume portion of the tray, in which cigarettes to be extinguished can be placed. As shown, the rod 8 is retained by a nut 10 housed in a recess 7, the upper surface of which is engaged by a collar 9 on the rod. The cover 12 is mounted on a boss 13 sliding on the rod, and the tray has an inwardly directed lip or flange 6 recessed at 16 to form cigarette rests. In a modification, the cover 12 normally rests on the rim of an inner receptacle which is clamped between the collar 9 and the upper surface of the recess 7, and the flange 6 is flattened and fitted with sheet-metal cigarette rests. The knob 11, may be replaced by a plate bearing a number, design, advertisement, &c., or a crest, menu-card holder, advertising device or other decoration. The base may be weighted or covered with baize. The Provisional Specification states also that an indicator for attracting the attention of a waiter &c. may be slidable on the pedestal or rod.