baber/WOPTO huggingface dataset:
Patent GB-613794-A (GB)
Title: Improvements relating to endless conveyors
IPC: B65G23/44
Filed: 1946-07-03
Abstract: 613,794. Endless belt conveyers. HART, J., and BAKER PERKINS, Ltd. July 3, 1946, No. 19941. [Class 78 (i)] In driving mechanisms the return run of the belt 1 is passed over a guide roller 2, round the driving drum 3, over a roller 4 carried by pivoted arms 5, beneath a heavy floating roller 16 and over guide rollers 7, 9 to the working run 10. The loop formed between the rollers 4, 7 in conjunction with the roller 16 forms an automatic device for compensating variations in the length of the belt, and the roller 16 increases the pressure of the roller 4 on the belt. The roller 16 is free on a shaft 14 which has secured thereto at each end a gear 12 meshing with a rack 13. A second loop co-operating with a roller 8 may be formed between the rollers 7, 9.
Patent GB-214150-A (GB)
Title: A motor-driven nut-cracking machine combined with other apparatus
IPC: A23N5/00
Filed: 1923-08-03
Abstract: 214,150. Benedetto, A. Aug. 3, 1923. Cam-actuated pumps.-In a nut-cracking machine a vertical rod 37 secured to the under side of the bridge-piece 26 forms the plunger of a pump 38. A cam 53 on the shaft 52 of the wheels 14, 15 acts on a roller 28 on the bridgepiece 26 and a spring 39 surrounding the rod 37 bears against the piece 26 and the stuffing-box 40 of the pump.
Patent GB-335615-A (GB)
Title: Improvements in or relating to picture and like telegraph systems and apparatus for use therein
IPC: H04N1/40
Filed: 1929-06-28
Abstract: 335,615. Tweed, C. J. F. June 28, 1929. Copying-telegraphs.-A message form for use in picture or like telegraphy consisting of partially ink-absorbent material backed with conducting or semi-conducting material such as " Aquadag " is wrapped, round a metal cylinder 1 with its conducting face downwards and is explored by a stylus 2. The arrangement is connected in series with a battery 3 across the grid and filament of a valve 6 which is also provided with a grid-bias battery 5 and grid-leak resistance 4. The anode of the valve 6 is connected to the mid point of the secondary side of an input transformer 10 through a resistance 8, said secondary winding being also connected to the grids of two thermionic valves 11, 12 arranged in push-pull with respect to an audio-frequency applied to the primary winding of the transformer 10. The valves 11, 12 are biassed negatively through a resistance 9. The battery 5 is so arranged that when there is an open circuit between the stylus 2 and the cylinder 1 the valve 6 is conducting with the result that positive high tension on the plate of the valve 6 is not sufficiently effective to overcome the negative bias on the valves 11, 12 and hence no radio-frequency note is passed to the output transformer 14. When a conducting path is established between the stylus 2 and the cylinder 1 the battery 3 renders the valve 6 non-conducting, the full plate voltage of the valve 6 overcomes the negative bias of the valves 11, 12 and an audio-frequency note is thus passed. Alternatively, the valve 6 may be biassed so that it is conducting only when there is a closed circuit between the stylus 2 and the cylinder 1.
Patent GB-1087967-A (GB)
Title: Improvements in and relating to photographic cameras
IPC: G03B17/30
Filed: 1966-05-05
Abstract: 1,087,967. Automatic threading in photographic cameras. AGFA-GEVAERT A. G. May 5, 1966 [May 7, 1965], No.19955/66. Headings G2A and G2E. A photographic-roll-film camera is provided with a film 12 take-up spool 11 driven by the film advancing mechanism and having a slot (11c) Fig. 2 (not shown) for entry by the leading end 12a of the film, there being means for automatically introducing the end into the slot including a guideplate 24 pivoted on the spool in such a manner that entry of the end into the slot pivots the plate 24 to clamp the end in the slot so that the film, on further advance, is wound around the spool core and the guide-plate together. The leading end 12a is advanced from the position shown by means of one or more sprockets into the gap between the guide-plate 24 and a second guide-plate 26 which, by means of a lug 31 and a recess 11e prevents the spool rotating, a cam 41 preventing the end 12a from entering a chamber 36. The plates 24, 26 direct the end 12a through the slot (11c) into the hollow spool round the core of which the end slides until it engages a stop 33. Pressure of the end on the stop rotates the stop and a toothed segment 21 attached thereto anti-clockwise (as seen) thereby turning the guide-plate 24 clockwise since the segment 21 meshes with teeth on the plate 24. The film is pressed against the plate 26 and against an edge 11d of the slot (11c) by a cam surface 23 of the plate 24, which now lies in a recess 11b of the spool. Further advance of the film causes pressure against the stop 33 which lifts up the guide-plate 26, thereby freeing the lug 31 from the recess 11e so that the spool can now rotate, and pivots the cam 41 anti-clockwise. When the film is wound back, the clamping arrangement is released due to action of a spring 25.
Patent GB-712803-A (GB)
Title: Electrical ignition systems
Inventor: CROWNOVER JOSEPH W
IPC: F23Q2/28
Filed: 1952-08-08
Abstract: 712,803. Piezo-electric generators. Mc- CULLOCH MOTORS CORPORATION. Aug. 8, 1952 [Sept. 4, 1951], No. 19999/52. Class 35 [Also in Group XXVII] A high-voltage generator, particularly for the ignition of internal-combustion engines, comprises a piezo-electric element to which is delivered a suitably timed blow to generate the current, the element being compressively spring-loaded to prevent shattering when the applied strain is released. In one form, Fig. 1, a ceramic barium titanate piezo-electric element 17 is encased by an insulating body 18 inside a metal shell 10, a cam-operated hammer 20 delivering an impact at the top end, while the output to be delivered to an ignition plug 42 is taken from a terminal 21 at the bottom. A metal anvil 19 is secured to the top of the element 17 and is kept pressed downwards to prevent tensile stresses in the element by a bow-spring 23 which has an opening through which the crown of the anvil passes. The hammer is uged downwards by a series of spring washers 26 and is forced up for the blow through push-rods 27 by a stepped cam 30 driven from the I.C. engine through a freewheel ratchet 34. The spring pressure is adjusted by a screw 13 and the hammer stroke is adjusted by raising the element by means of a wedge 39. In a modified form, Fig. 5, the element is insulated by a shell 109 and 'supported in an opening in a body 105. The anvil 110 is pressed downwards by a bow-spring 120, while the hammer 126 is energized by an adjustable spring 134. The element is supported on an insulating plate 112 on a bar 113 through which the conductor 111 passes. The hammer and push-rod assembly 110, 113 is resiliently supported for vertical motion by spring-arms 121, 127. Fig. 7 shows a system of compressing a pair of elements 53, 54 in series by means of a lever 48 and cam 47, the output from'the terminal 56 being derived from the two elements in parallel. Connections are also shown for placing the elements electrically in series or series parallel. It is shown how the element may be carried on an engine flywheel and be actuated by stationary cam. In Fig. 9 a diverter is used to prevent secondary sparks from the piezo-electric elements from reaching the sparking-plug 94. This diverter comprises a metal disc 89 rotating with the operating cam 88 and having a cut-away part 90 so that it is in proximity with the diverting electrode 91 only during the inoperative period.
Patent GB-596893-A (GB)
Title: Improvements relating to acoustic reproducers
IPC: H04R7/02
Filed: 1945-08-03
Abstract: 596,893. Diaphragms. COSSOR, Ltd., A. C., and ROBINSON, F. C. Aug. 3, 1945, No. 20012. [Class 40 (iv)] The diaphragm of a loud-speaker is made of expanded plastic material in the form of a flat disc with a thickened periphery, and a double suspension attached to the front and back of this periphery gives parallel motion to the diaphragm. The primary vibrating element is attached to the centre of the disc. The suspension may be moulded into the edge of the diaphragm which may be formed with strengthening ribs. Suitable material is that known under the Registered Trade Mark " Thumazote " and this may be modified to give a continuous surface skin to one side of the diaphragm.
Patent GB-574431-A (GB)
Title: Improvements in or relating to apparatus for rotating a freely supported sphere
IPC: G09F11/23
Filed: 1943-12-02
Abstract: 574,431. Advertising &c. apparatus. RUTHERFORD, S. H. Dec. 2, 1943, No. 20139. [Class 3 (i)] [Also in Groups XV and XXIV] A freely-supported sphere 1 is rotated about any desired diametral axis in one particular fixed plane by two wheels 2, 3, or sets of wheels rotatable about fixed axes. The rotational speed and axis of rotation of the sphere 1 are varied by varying the speeds and directions of rotation of the wheels 2, 3. Castor or like wheels 20 may additionally support the sphere. The wheels 2, 3 may be manually or mechanically actuated or be under the control of a single joy-stick. As shown, the wheels 2, 3 carry planet wheels 4 meshing bevel gears 5 ... 8. The gears 5, 8 are fixed on a spindle 9 and the gears 6, 7 are integral with gears 12, 13 loose on the spindle 9 and meshing a gear 14 on a spindle 15. Rotation of the spindle 9 rotates the sphere 1 about a horizontal axis and rotation of spindle 15 rotates the sphere 1 about a vertical axis. Simultaneous rotation of the spindles 9, 15 rotates the sphere about an axis depending on the speeds of these spindles. The spindles 9, 15 may be driven by separate motors actuated by a single joystick. Alternatively, the wheels 2, 3 may be driven by variable-speed friction gearing of the type in which the edge of a roller engages the face of a disc, and the wheels 2, 3 may each act as a roller member. The apparatus may be applied to advertising or display apparatus. Specification 530,370 is referred to.
Patent GB-1066667-A (GB)
Title: Preparation of random copolymers
IPC: C08F2/38
Filed: 1965-05-12
Abstract: Random copolymers are obtained by contacting at least two monomeric materials selected from 1,3-butadiene, isoprene, piperylene and vinyl-substituted aromatic hydrocarbons with an organo-lithium polymerization initiator under polymerization conditions in a hydrocarbon diluent and in the presence of a polyether or a poly-tert-amine having at least 3 atoms other than C or H, a molecular weight of at least 130 and a boiling point of at least 150 DEG C. The organo-lithium initiator preferably has the formula RLix, where R is an aliphatic, cycloaliphatic or aromatic hydrocarbon radical having 1 to 20 carbon atoms and x is an integer from 1 to 4. The preferred polyethers have the formula <FORM:1066667/C3/1> and the preferred poly-tert-amines have the formula <FORM:1066667/C3/2> wherein each R is an alkyl group having 1 to 4 carbon atoms, each R1 is hydrogen or methyl and n is an integer of 2 to 6. Many other polyethers and poly-tert-amines are mentioned including polymers of ethers and oxides, and hexamethylene tetramine.  An embodiment is illustrated in which after short-stopping a batch polymerization reaction, the polymerization mixture is passed into a flash separator and a portion of the solvent is flashed overhead together with any monomer that remains.  This portion may be condensed and re-used. The material remaining in the separator is then treated by conventional processes to recover the rubbery copolymer.  In the examples, styrene is copolyerized with 1,3-butadiene.
Patent GB-977179-A (GB)
Title: Apparatus for curing asbestos-cement articles, more particularly pipes
IPC: B28B11/24
Filed: 1963-05-21
Abstract: 977,179. Curing asbestos-cement articles. C. PASQUALE, and A. C. PASQUALE, [trading as R. C. M. REVISIONE COSTRUZIONE MACCHINE]. May 21, 1963 [May 21, 1962], No. 20181/63. Heading F4G. Apparatus for curing asbestos-cement articles, e.g. pipes T, comprises an endless roller conveyer 2 in a tunnel 1 having longitudinal channels 4, 5 flush with the tunnel bottom and covered by spaced plates to provide ports 7 spaced along the length of the tunnel for circulation of air moistened by water sprinklers 21 and heated by fluid-heated pipes in a battery 18 mounted in a chamber 8 connected to one end of the channels 4, 5. The air from the tunnel 1 is withdrawn for conditioning by a fan 16 through either channel 4 or 5 as dictated by flap valves (not shown) actuated by fluidpressure cylinders 14, 15 and mounted in the wall of a channel 13 common to both channels which is interposed between the channels and the chamber 8 so that conditioned air may pass to the open end of the other channel, e.g. channel 5, as shown. The sprinkler and heated pipes are fed with hot water from a boiler 19, and the channels 4, 5 increase in cross-sectional area and have their bottoms sloping downwardly towards the chamber 8 to drain condensation water.
Patent GB-666028-A (GB)
Title: Improvements in and relating to reel and web indicators
IPC: B42D19/00
Filed: 1949-08-03
Abstract: 666,028. Moving signs. O'CONNOR, J F. Aug. 3, 1949 [Aug. 10, 1948], No. 20194/49. Class 3(i) A mechanism for winding a band or strip A from one reel to another comprises a driving shaft 43, wheels 40, 41 associated with the reel spindles for selective coupling to the driving shaft and means which automatically interrupt rotation of the reel spindles when the volume of the strip on a given reel reaches a given magnitude. The display band A which is wound on and off two reels C\ C<SP>2</SP>, is positioned by guide rollers 24 ... 30 so that one side of the band is seen through a window 22 in a casing B and the other side through a window 23. The reels C<SP>1</SP>, C<SP>2</SP> are driven by an operating handle on shaft 43 through gear wheels 40, 41 and 44, the gear wheel 44 engaging one of the other wheels according to the position of a reversing lever 46. A ratchet wheel and pawl device allows the operating shaft to move in a clockwise direction only. When the reversing lever 46 is in its central neutral position, rotation of the operating shaft is prevented by a spring loaded lever 55, pivotally mounted on the lever 46, a pin 54 on which engages a serration in a wheel 53 on the operating shaft 43. Movement of the lever 46 causes the lever 55 to engage one or other of two pins 59, 60 and this engagement moves the pin 54 from the serration in the wheel 53 and frees the operating shaft. When the band on a roller reaches a predetermined size the roller is locked against further rotation by a mechanism which comprises a spring loaded detent 66 which engages a ratchet wheel 64 on the reel shaft. A slidable shield 72 normally prevents the detent engaging the ratchet wheel and this slide is moved, until an aperture in it allows the detent to drop, by a pin 38 which is adjustably positioned in one of a number of holes 75 in the slide; the pin is connected to a spring loaded roller 32 which bears on the rolled up band. When the reversing lever 46 is moved to change the direction of band movement an extension 58 lifts the detent from engagement with the ratchet wheel. The Specification as open to inspection under Sect. 91, describes a construction in which the mechanism is mounted on a separate frame which is bolted to a frame containing the rollers so that it may be quickly detached for repairs. Engagement between each of the gear wheels 40, 41 and its roller shaft is through a cushioning spring contained in a hollow steel shaft on which each gear wheel is mounted. This subject-matter does not appear in the Specification as accepted.
Patent GB-288874-A (GB)
Title: Improvements relating to hose couplings
IPC: F16L37/256
Filed: 1927-07-29
Abstract: 288,874. Westinghouse Brake & Saxby Signal Co., Ltd., (Westinghouse Air Brake Co.). July 29, 1927. Disconnectible couplings. - In a coupling head 1 for train hose-pipe couplings of the kind fitted with a gasket 5 having a cylindrical portion 15 adapted to engage with the gasket of the co-operating coupling head and a flanged portion 14 to engage in an annular recess 4 of the head, a resilient device is provided for exerting pressure on the gasket so as to apply firmly the flanged portion to the walls of the recess and also to maintain the cylindrical portion against the interior wall of the head above the recess. Said device comprises a concave ring 7 which is adapted to engage the rounded corner 6 of the gasket and is connected to a spring-pressed sleeve 8, slidably mounted on a stem 10 secured to the coupling head, by struts 9, outward movement of said sleeve being limited by a stop 11. In order to prevent an accumulation of pressure in the recess 4, due to leakage, which would tend to blow the gasket out during uncoupling, the recess 4 may be opened to the atmosphere through a passage 17; alternatively it may communicate with the interior of the coupling.
Patent GB-1158955-A (GB)
Title: A Method and Device for Processing Workpieces by Plastic Deformation.
Inventor: MINASARYAN ARMENUN AIKASAROVNA
IPC: C21D7/12
Filed: 1967-05-02
Abstract: 1,158,955. Spinning; expanding. TSENTRALNY NAUCHNO - ISSLEDOVATELSKY INSTITUT TEKHNOLOGII MASHINOSTROENIA. 2 May, 1967 No. 20250/67. Headings B3E and B3J. A method of processing a workpiece by plastic deformation for the purpose of shaping or hardening the workpiece comprises rotating the workpiece at a speed necessary for the development of centrifugal forces ensuring plastic deformation and damping mechanical oscillations of the workpiece to ensure steady rotation thereof. A steel ring 19, Fig. 1, to be expanded and hardened, is connected by flexible diaphragms 20, 21 to a shaft 1 rotated by shafts 15, 16 at a speed, for a ring of 280 mm. outside diameter and 225 mm. inside diameter, of 19,000 r.p.m. The ring 19 is thus deformed by the centrifugal forces generated to the shape 19<SP>1</SP>. In another arrangement, Fig. 2, a steel blank 22 is clamped at one end by means 23, 24 to the shaft 1 and rotated at 17,000 r.p.m., whereupon it takes up the shape 22<SP>1</SP>. The shaft 1 is also connected, through a shaft 3, with a mechanical oscillation filter 25 comprising a weight 10 and flexible element 9 on a shaft 4. The shaft 4 is articulated at 7 to a fixed support 2 and passes through a multi-plate friction damper 12. The drive may alternatively be at the top of the shaft 1 and the damper at the bottom or the device may be in the form of a gyroscope. The workpiece may be heated, e.g. up to 500‹ C., or cooled during processing. Turbogenerator rings may be treated.
Patent GB-585844-A (GB)
Title: Fasteners for cycle dress-guards
IPC: B62J21/00
Filed: 1944-10-19
Abstract: 585,844. Dress-guards. HELLSTROM, A. G. F. Oct. 19, 1944, Nos. 20272 and 20273. Convention dates, Oct. 15, 1943, and Dec. 22, 1943. [Class 136 (i)] [Also in Group XXV] A fastener for securing a dress guard to the mudguard of. a bicycle or the like comprises a shacklelike member of steel wire or other resilient material, wherein the free end of the inner shank 3a is in the form of a hook 4 which is directed resiliently towards the other shank 3b and engages around the folded rim 2 of the mudguard 1 and wherein the hook is provided with an extension 9 which engages the inside of the mudguard. The shank 3b terminates in an eye, a ball or plate 5.
Patent GB-382295-A (GB)
Title: Improvements in the manufacture and production of shaped articles from masses containing silicon
IPC: C22C32/00
Filed: 1931-07-15
Abstract: Refractory compositions capable of being shaped are made from metallic silicon or silicides and a ceramic binding agent which sinters or melts below 1000 DEG  C., e.g. low melting glass powder, water glass, sulphates or chlorides.  The composition is sintered at a temperature less than 1000 DEG  C. e.g. 900 DEG  C. until it is hard enough to be worked, then machined to the required shape, and finally glowed at 1200-1250 DEG  C. to sinter the contained silicon or silicides.  The preliminary calcining is usually from 2-4 hours in the usual manner.  In an example 60 parts of 90 per cent silicon are mixed with 20 parts clay, 15 parts of sodium potassium silicate, 5 parts of a mixture of sodium and potassium chlorides, the mixture is moulded wet, air dried, preliminarily calcined at 900-950 DEG  C., machined to the required shape, and finally finished at 1200-1250 DEG C.  The free silicon may be replaced by a silicide such as silicon carbide or by an alloy of silicon, for example with copper, chromium or iron.  Stability to heat and corrosion is not affected by using silicon having a high metal content, especially a high iron content. In addition to the low melting ceramic binding agents, other binding agents melting above 1000 DEG  C. such as clay, quartz, feldspar, kaolin, and zirconium oxide may also be present.
Patent GB-1268134-A (GB)
Title: Apparatus for severing webs of rubberised parallel-laid wires, diagonally relative to the wires
IPC: B29D30/46
Filed: 1970-04-28
Abstract: 1,268,134. Shearing. CONTINENTAL GUMMI-WERKE A.G. 28 April, 1970 [29 April, 1969], No. 20352/70. Heading B3W. A web of rubberized parallel steel cord fabric is severed at an angle to the cords by two disc cutters 7 mounted on a slide 11 which is displaceable at an angle relative to the direction of feed 3 of the web. The cutters are mounted on shafts located in. bearings 14 and driven by a motor 22. A conveyer 5 for supporting the portion of the web to be cut off and for removing it after cutting includes magnets 6. The slide is driven by a rack and pinion, the latter being driven by the motor 22. The cutting direction of slide movement is indicated by arrow 8 and the slide is returned in the direction 13 whilst the conveyer 5 removes the cut off portion 9.
Patent GB-777534-A (GB)
Title: Improvements in or relating to process for dyeing fibres of copolymers of acrylonitrile
Filed: 1955-07-14
Abstract: Fibres of difficulty-soluble copolymers of acrylonitrile having little or no affinity for normal acid dyestuffs are dyed from an aqueous bath containing a metalliferous acid dyestuff and a water-soluble alkali metal salt, e.g. sodium chloride, sulphate, nitrate or thiocyanate or potassium nitrate, at a temperature above 100 DEG C., e.g. 125 DEG C.  Specified copolymers are those of acrylonitrile with methyl acrylate, methyl methacrylate or vinyl acetate.  Specification 693.245 is referred to.
Patent GB-877613-A (GB)
Title: Magnetic retrieving tool
Inventor: MAYALL WILLIAM
IPC: E21B31/06
Filed: 1958-06-25
Abstract: 877,613. Borehole apparatus. KINGSTON INSTRUMENT CO. Ltd. June 11,1959 [June 25, 1958], No. 20437/58. Class 85. A magnetic fishing tool comprises at least one permanent magnet enclosed in a body, a cap member of magnetic material and a hollow cutter which has ports therein communicating with a passage in the body for the delivery of liquid, said cap member being in magnetic contact with at least one pole of the magnet by way of an auxiliary cap member of magnetic material disposed between the cap member and the magnet, the cap member and the magnet being detachably secured to the body so that the cap member can be replaced without separating the auxiliary cap member from the magnet. In the embodiment described the body comprises a part 11 of mild steel and a part 12 of non-magnetic stainless steel containing two permanent magnets 13 and 14. Between the magnets is a non- magnetic separator 15 and under each magnet is a D-shaped mild steel plate 20, 21. The assembly is retained by a flange 17. A non-magnetic stainless steel tubular cutter 25 is screwed on to the portion 12 and secures two mild steel cap members 29 and 30. The separator 15 has an internal passage for drilling mud connecting with a central bore 32 in the body 11 and also with an annular passage 39 in the cutter 25, which communicates with ports 40 in the cutter teeth. In a modification one of the cap members is fitted with a blade 47 (Fig. 4) which increases the forward surface, and the cutter 25 is replaced by one having longer teeth.