baber/WOPTO huggingface dataset:
Patent GB-882276-A (GB)
Title: A process for the recovery of 6-amino-penicillanic acid
IPC: C07D499/42
Filed: 1960-07-20
Abstract: 6-amino-penicillanic acid is recovered from aqueous solutions thereof by extracting the aqueous solution at a pH of between 1 and 3 with a lesser volume of a water-immiscible organic solvent having dissolved therein between 0.5% and 10% by weight of the aqueous solution of a compound of the general formula (RSO3)xM wherein R is a hydrocarbon radical having a molecular weight between 340 and 510, M is a hydrogen, alkali metal or alkaline earth metal atom and x is the valency of M, or a mixture of such compounds, and separating the organic solvent phase containing the major portion of the 6-amino-penicillanic acid.  The organic solvent may be methyl isobutyl ketone, n-butanol, butyl acetate, n-amyl acetate, isobutanol, n-amyl alcohol, isoamyl alcohol, diisopropyl ether, diamyl ether, ethyl isopropyl ketone, or ethyl tertiary butyl ketone, and the compounds of the above formula are preferably alkali metal salts of petroleum sulphonates.
Patent GB-532590-A (GB)
Title: Improvements in and relating to caps and holders for electric lamps
IPC: H01R33/08
Filed: 1939-09-08
Abstract: 532,590. Lamp caps and holders. BRITISH THOMSON-HOUSTON CO., Ltd.. RUFF, H. R., and RULE, W. Sept. 8, 1939, No. 25455. [Class 38 (i)] A tubular lamp having contact pins projecting in an axial direction at each end, such as described in Specification 526,713, has an insulating disc located across the ends of the pins to shield them from accidental contact. The disc 3, Fig. 1, may be attached to the cap 2 by a segmental wall 3a, or by peripheral rods that may slide on the cap to allow the disc to be pushed into contact with the outer face of the socket member. Alternatively the disc 6, Fig. 2, may be fixed on the ends of the contact pins 4 or on a central dummy pin, and in these cases the slots to receive the contact pins or dummy pin extend through the socket member. The shield may be applied to contact caps that are inserted directly into the holder without rotation.
Patent GB-190266-A (GB)
Title: Improvements in or relating to weftinserting devices for looms
IPC: D03D41/00
Filed: 1921-09-26
Abstract: 190,266. Engler, R. Sept. 26, 1921. Shuttleless looms.-A weft-inserting device for looms with stationary pirns for producing wire tissue comprises wire-holders 1, 2, with rollers which run on a rail 3 on the lay, and linkages 14, which move the holders towards and from the middle of the shed. The end members 15, 16 of each linkage are pivoted at 17 and carry pulleys 18, 19 engaging a slot 20 in a slide 21, which is displaced against the action of a spring 26 by a string 22 attached to a cam-operated lever 24. A weft wire '4 drawn from a pirn 30 is gripped by a lever 6 pivoted in the holder 2 and is carried to the middle of the shed, where the end projecting from the holder 2 penetrates the holder 1. A lever 5 pivoted in the holder 1 and the lever 6 are oscillated by contact with stops 31, 32, causing the wire to be gripped in the holder 1 and released from the holder 2. The wire is then pulled through the shed, whereupon the levers contact with stops 34 causing the holder 1 to release the wire and the holder 2 to grip the wire, which is cut at a point just passed by the holder 2 on its return movement. The levers 5. 6 are secured in their end positions of oscillation by means of studs 9, 10 thereon engaging curved springs 7, 8.
Patent GB-818242-A (GB)
Title: Improvements in or relating to open fireplaces
IPC: F24B1/19
Filed: 1954-09-02
Abstract: 818,242. Controlling supply of combustion air. DUNN, A. A. Nov. 29, 1955 [Sept. 2, 1954], No. 25471/54. Class 126 An air admission door for a fireplace front comprises two apertured plates forming a hit-and-miss damper and an outer shell enclosing the plates at the top, front and ends and leaving a space at the bottom for the admission of air The ash-pit opening of a fireplace fret is surrounded by a machined rim 12 against which an apertured plate 16 is held by hooks 19 engaging lugs 13. A shell 15 with an open bottom is secured over the plate 16, and a second apertured plate 22 is held against the plate 16 by a bolt 27 carrying a lever 25 pivoted to the plate 16 and projecting through a slot in the top of the shell 15. Movement of the lever 25 causes the plate 22 guided by the cheese-heads 24 of the screws securing the plate 16 to the shell 15 to slide over the plate 16 so as to bring the slots in the plates 22, 16 into or out of register. A knob 33 on the lever 25 enables the whole door to be easily removed by hand or a suitable tool.
Patent GB-204882-A (GB)
Title: Improvements in or relating to cutting and like devices
IPC: B25B7/12
Filed: 1922-09-20
Abstract: 204,882. Perl, A. H. F., and Carter, R. H. Sept. 20, 1922. Opening by cutting.-A shearing- device, which can be used for opening tins, comprises a straight lever 1 and a cranked lever 2 which are indirectly connected by links 4, 5, the link 5 being of bell-crank form and having a cutting-edge 6 co-operating with the adjacent cranked portions 7 of the lever 2. The levers are formed from one-piece blanks bent to channel section and the link 5 is disposed between the sides of the levers, and pivoted thereto by rivets 20. 9; projections 18, 19 stamped from the link 5 adjacent the rivet 20 maintain the link centrally between the sides of the levers and, if desired, additional projections may be provided on the levers. The back of each lever is provided with a stamped-up portion 16, 17 to form hand guards or stops; the links 4 at each side of the levers are reinforced by stamped ribs 13 and similar ribs 12 may be provided on the cranked portion of the lever 2. The levers are normally kept apart by a spring 22 bearing at one end against the link 5 and, at the other, looped to engage holes 24, 25 in the lever 1. The parts where pivoted together are indented inwardly around the pivots to provide edge contact between the moving parts. The end of the link 5 may be provided with a piercing device 11 similar to that described in Specification 185,226.
Patent GB-269798-A (GB)
Title: Improvements in or relating to dough rolling machines
IPC: A21C7/00
Filed: 1926-10-13
Abstract: 269,798. Soc. Anon. des Ateliers Spiltoir, Rappez, Hecq. Aug. 28, 1926, [Convention date]. Rolling-machines.-In dough-rolling machines of the 'type comprising a rotary drum 8 surrounded by a helical channel 22, a closed channel is provided in advance of the channel 22, being formed by a flange 9 on the base of the drum 8, a fixed outer wall 13 supported from the framework 10 and a cover 15 adjustably supported by arms 16 on screws 18 controlled by handwheels 19. The drum is provided with grooves decreasing in depth upwardly. Dough portions 27 from a divider are supplied to the machines by a belt' 25.
Patent GB-1301762-A (GB)
IPC: B60C17/06
Filed: 1971-04-19
Abstract: 1301762 Pneumatic tyres FIRESTONE TIRE & RUBBER CO 19 April 1971 [3 April 1970] 25570/71 Heading B7C  A pneumatic tyre and wheel rim assembly in which the rim has bead retaining flanges 28, 29 of a given radially outer diameter, includes a rim flat safety device 25 comprising a one piece annular member of resilient and flexible material such as a foamed polyurethane having a radially inner diameter about equal to or larger than the outer diameter of the flanges, the safety device having two bead engaging surfaces 50, 51 in engagement with the beads 36, 37 of the tyre and the safety device being spaced from said rim. The safety device has a recessed surface 55 which extends from the inner wall 46 towards the outer wall 45 and terminates short thereof to define a resiliently bendable section 58, facilitating tyre fitting and removal, and shoulders 60, 61, one on each side of the recess, each shoulder having an annular reinforcing member 64, 65 embedded in it.
Patent GB-195413-A (GB)
Title: An improved toy or puzzle comprising a plurality of units
IPC: A63F9/12
Filed: 1921-09-27
Abstract: 195,413. Chambers, M. S. Sept. 27, 1921. Building-blocks; puzzles. -Relates to toys or puzzles in which a definite form is built up from a number of units and consists in a toy or puzzle comprising units of tetrahedral or pyramidal form, or sub-multiples or parts of tetrahedra and pyramids, the units being adapted entirely to fill a prescribed space. In one form, 74 units of the forms shown in Figs. 5, 7, 12, and 15 and of similar forms are made of such relative dimensions that they will fit either into a cubical box or into a 'hexagonal box of the same capacity. Several boxes of either shape may be used, and all the boxes may be mounted on a common support.
Patent GB-502734-A (GB)
Title: Improvements in books and in methods of and machines for binding same
IPC: B42B5/12
Filed: 1937-09-21
Abstract: 502,734. Wire spirals for bookbinding. DEHN, F. B. (Rockwell-Barnes Co.) Sept. 2t, 1937, No. 25628. [Class 83 (iv)] Coiling.-Books of leaves with aligned edge perforations are bouhd by feeding a wire through a curved needle positioned in one of the perforations to form a helix which is threaded in turn through the other perforations. The leaves B are positioned on a table 33 and aligned by a manually moved bar 69 and a sloping side gauge. A hollow curved needle 66 is moved helically by a rack pinion and cam, Fig. 5 (not shown), to engage the end perforation. Wire is then fed through guides 36 by feed rolls through the needle and coiled. The helix is engaged by rollers and threaded through the other perforations. The pitch is corrected by a member 70. At the completion of the coiling operation a camactuated head 82 descends to shear the wire against the guide 36 and to bend the end of the wire against the bar 59.
Patent GB-1455262-A (GB)
Title: Digital-to-analogue converter
IPC: H03M1/00
Filed: 1973-05-30
Abstract: 1455262 Digital-to-analogue conversion MICRO CONSULTANTS Ltd 22 April 1974 [30 May 1973] 25721/73 Heading H3H The output of a digital-to-analogue converter is in the form of pulses, Fig. 3, each of an amplitude corresponding to the value of the digital input and of a duration not more than 0À7 times the period between pulses. In a video system this replaces frequency-dependent amplitude loss by fixed amplitude loss which can be compensated by amplification. Preferably, the markspace ratio is between 0À1 and 0À7. In Fig. 9, the output of the converter 40 is chopped by F.E.T. switches 31, 32 controlled by delays 43, 46 and a flip-flop 45. Switches 31, 32 may be diodes or optical; one of them may be replaced by a resistor. The level between pulses need not be earth, Fig. 10 (not shown). In another form, Fig. 6 (not shown), the digital input is chopped by being stored in a register (10) of flip-flops each flip-flop being reset before the arrival of the next sampling pulse.
Patent GB-961331-A (GB)
Title: Organic chemical process
Inventor: BRADBURY FRANK RAYMOND
IPC: C07F1/00
Filed: 1961-07-17
Abstract: A metal and pyridine or a pyridine base having one or more hydrocarbon substituents are interacted in the presence of an N:N-dialkyl-arylamine (the term "alkyl" being held to include aralkyl e.g. benzyl).  N:N-dialkyl-arylamines specified include N:N-dimethyl-, N:N-diethyl-, N-methyl-N-ethyl-, and N:N-di-n-propyl-anilines, and the corresponding derivatives of the ortho, meta and para-toluidines, anisidines, phenetidines, xylidines and mixtures of these.  The reactants may be used in stoichiometric proportions.  Preferred metals are the alkali metals and magnesium, the former being used as suspensions or dispersions and the latter as turnings or powder.  Both the pyridine base and the N:N-dialkylarylamine should be substantially dry.  The interaction product may be converted by oxidation into bipyridyls, using oxygen, air, or chlorine (optionally diluted with an inert gas such as nitrogen).  The oxidation is more fully described in Specification 956,854.
Patent GB-1112720-A (GB)
Title: Improved weatherstrip device
Inventor: KONDOLF KARL QUENTIN
IPC: B60J10/00
Filed: 1966-06-10
Abstract: 1,112,720. Sealing strips; glass runs. SCHLEGEL MANUFACTURING CO. 10 June, 1966 [11 June, 1965 (2)], No. 25887/66, Heading E1J. Sealing strips and glass runs comprise a pile finish 22 on a backing strip 23 supported in turn by a lamina 24 of a synthetic thermoplastic resin. The pile is preferably of polypropylene, as is the woven fabric strip 23, the pile being attached to the strip by being woven thereinto, or tufted or sewn thereon, or by fusion, adhesive or flocking. The lamina 24 also preferably includes polypropylene, and may be an ethylene-propylene co-polymer. The strip 23 may be, e.g. clipped e.g. to a vehicle or boat with, as shown, a strip 40 of rubber or plastics, and a metal support member 41 therebetween. Various other methods are described, incorporating different securing means. A glass run (e.g. 10, Figs. 7-11, not shown) is formed as a channel, with pile extending inwardly from one or both flanges, the channel being formed, e.g., by hot moulding from a pre-scored strip having the pile attached thereto.
Patent GB-1421028-A (GB)
Title: Tyre building apparatus
Inventor: CASEY W R
IPC: B29C67/00
Filed: 1973-05-31
Abstract: 1421028 Tyre building drums GOODYEAR TIRE & RUBBER CO 31 May 1973 [28 June 1972] 26052/73 Heading B7C [Also in Division F2] Apparatus for use in tyre building comprises a rotary drum 12, inside and coaxial with which are two independently operable rotary members carried respectively by a quill shaft 23 and an inner shaft 25, which, together with an outer spindle 21 carrying the drum, are arranged telescopically and are drivable in co-rotating synchronous pairs, individually, or all together, as may be required in the work cycle, under control of clutches 31c, 51c and 62. together with brakes 36, 41. Connected to each member of two pairs is a differential gear 70, 70<SP>1</SP>, the outputs of which are proportional to the relative displacements between the members of the particular pair and may be used to operate switches 88, 110, controlling the clutches and brakes during the work cycle. Operation.-With the clutch 31c engaged alone a main motor 34 drives the outer spindle 21 and inner shaft 25 synchronously through chains 39, 38, whilst release of the clutch 31c and application of the brake 41 to the outer spindle 21 causes the motor 34 to drive the inner shaft 25 alone. With the clutch 31c and brake 41 released, and clutches 51c, 62 and main motor brake 36 engaged, an hydraulic secondary motor 60 drives the quill 23 and outer spindle 21 synchronously through chains 53, 52, whilst releasing the clutch 51c under this condition causes the motor 60 to drive the quill 23 alone. The chain 53, which connects the clutched sprocket of the hydraulic motor 60 to a similar sprocket on a parallel shaft 51, also meshes a sprocket on the quill 23. Inputs to the differential gear 70 are the outer spindle 21 through chains 52, 74 and the quill 23 through chains 53, 77, whilst inputs to the differential gear 70<SP>1</SP> are the outer spindle 21 through a chain 91 and inner shaft 25 through a chain 91 and inner shaft 25 through a chain 94. Output of the differential 70 is a drum 84 carrying cams 86 operating switches 88 controlling the clutches and brakes in the work cycle. Output of the differential 70<SP>1</SP> drives, through a chain 97 and manual clutch 102, a lead screw 100 carrying a non-rotary nut 104, the axial movement of which actuates similar switches 110 and a pointer 106 moving over a scale 108. The differential gears, Fig. 2, comprise input suns 71a, 76a and an output planet carrier, carrying stepped planets 79b, 79c meshing, respectively directly and through an idler 81, the suns. Compressed air, to operate process parts in the drum, is fed thereto through a central fitting 124.
Patent GB-962848-A (GB)
Title: Improvements in extrusion presses
IPC: B21C23/21
Filed: 1962-07-09
Abstract: 962,848. Extruding. SCHLOEMANN A.G. July 9, 1962 [Aug. 5, 1961], No. 26192/62. Heading B3P. An extrusion press has an axially movable billet container 7, and a die holder 13 mounted for transverse sliding movement on a frame 24 which is rotatable about an axis 27 parallel with the extrusion axis. Two die holders 13 each housing a die 9 and thrust collars 10, 11 are mounted on opposite sides of the axis 27. Each holder is secured to a rack 14 meshing with a pinion 15 which is rotatable through further rack-and-pinion gearing by a fluid pressure motor 22 for sliding simultaneously both die holders radially outwardly or inwardly. In its outward position the operative die 9 is located by an adjustable stop 32 and held between fixed abutments 34, 34a. After extrusion, the product can be sheared off by a vertically acting blade 42 or it can be sheared between the thrust collar 11 and a pressure piece 12 upon inward movement of the die holder which is assisted by a piston 44, Fig. 3 (not shown) acting directly upon the collar 11. Alternatively upon withdrawal of stop 32, the die may be released for axial movement with the container whereby the product may be severed behind the die by a saw. The frame 14 is rotated through rack- and-pinion gearing by a fluid pressure motor 31. Specification 946,756 is referred to.
Patent GB-387011-A (GB)
Title: Improvements in bag couplings for suction cleaners
IPC: A47L9/14
Filed: 1931-07-24
Abstract: 387,011. Tubular couplings. AIRWAY ELECTRIC APPLIANCE CORPORATION, 2101, Auburn Avenue, Toledo, Ohio, U.S.A.-(Assignees of Riebel, F. and Dow, D. M. ; c/o Air- Way Electric Appliance Corporation, Auburn Avenue, Toledo, Ohio, U.S.A.) July 24, 1931, No. 26236/32. Convention date, May 20, 1931. Divided on 386,999. [Class 99 (i).] In connecting the bag 5 of a vacuum cleaner to a coupling member 1, the neck of the bag is gripped between a tapered sleeve 2 and a tapered enlargement 20 of the coupling member. A nut 3 on the coupling has a lost motion connection 17 with the sleeve. A notch 9 is provided in the sleeve 2 to receive a lateral extension of the bag.
Patent GB-1114775-A (GB)
Title: A device adapted to provide oscillating stresses having adjustable amplitude and frequency particularly for fatigue testing materials
IPC: G01N3/34
Filed: 1965-06-22
Abstract: 1,114,775. Fatigue testing. CARL SCHENCK MASCHINENFABRIK G. m. b. H. June 22, 1965 [June 23, 1964; May 26, 1965], No.26428/65. Heading G1S. Apparatus for the generation of oscillation stresses of adjustable amplitude and frequency in fatigue testing, comprises a shaft 5 mounted in a free-swinging housing 3 and to which flywheels 6 are secured, the shaft 5 being rotated about its own longitudinal axis and about the longitudinal axis of a shaft 4 which is perpendicular thereto. As shown in Fig. 1, the shaft 4 is connected to the housing 3, so that rotational movement of the shaft 4 is transmitted through gearing 7, 8 to rotate shaft 5 in a direction perpendicular to shaft 4. Thus the system of flywheels 6 moves with two angular velocities which are proportional to each other and at right angles. The resultant torque thus produced is sinusoidal and is applied to the object to be tested. In a modification, gear-wheel 8 is connected to a further shaft on a parallel axis to shaft 4 and rotating at the same speed thereto.
Patent GB-731411-A (GB)
Title: Device for the transmission of the driving movement for lifting bridges, lifting gates, sluice boards and the like
IPC: E01D15/02
Filed: 1953-09-25
Abstract: 731,411. Lifting bridges. GUTEHOFFNUNGSHUTTE STERKRADE AKT.-GES., [formerly GUTEHOFFNUNGSHUTTE OBERHAUSEN AKT.-GES.]. Sept. 25, 1953 [Sept. 29, 1952], No. 26486/53. Class. 78 (2). Bridge 2 is given a predetermined accelerated movement by uniformly - rotating drive 4 by means of guide path 7 which engages rollers 6 carried by the chain 1 which supports the bridge. The guide path may take one of several forms (not shown).
Patent GB-648814-A (GB)
Title: Improvements relating to fluid-tight sealing means between rotary and non-rotary members
Inventor: WILKINSON SAMUEL CLIFFORD WALT
IPC: F16J15/36
Filed: 1946-09-03
Abstract: 648,814. Stuffiing-box substitutes. CRANE PACKING, Ltd., Sept. 3, 1946, No. 26508. [Class 122(v)] A fluid seal comprises a rotary sealing ring 13 carried by the outer wall of a substantially U-shaped flexible sealing ring carrier 3 fitting upon a rotary member such as a shaft 1, the ring being maintained in contact with a stationary post 14 by a spring or springs 12 housed within the carrier and abutting a shoulder 11 of a drive ring 6 which extends beyond the carrier to fit directly on the shaft and terminates in means for rotational driving engagement with the sealing ring. The means comprise a tooth 15 on the drive ring engaged with a slot 16 in the sealing ring.
Patent GB-850425-A (GB)
Title: A hydraulic circuit embodying a combined pump and control unit
Inventor: KRAFFT FREDERICK G
IPC: F04C14/22
Filed: 1958-08-18
Abstract: 850,425. Rotary pumps. THOMPSON GRINDER CO. Aug. 18, 1958, No. 26522/58. Class 110 (2). A worktable 10, Fig. 1, is reciprocated at substantially constant speed by a - piston and cylinder unit 16, 20 controlled by a reversing valve 24 which is connected to the outlet side of a variable-capacity pump 30 through a conduit 28 having a throttle valve 50. The control member 32 of the pump is urged to the maximum stroke position by an adjustable spring-loaded plunger in opposition to a plunger 42, 48 subjected to the differential pressure across the valve 50. In a modification, Fig. 2 (not shown), the right-hand side of the plunger 42, 48 is connected directly to the working chambers of the pump. The stroke of the plunger 42, 48 may be limited by an adjustable stop, see Fig. 3 (not shown). In a further modification, Fig. 4, the left-hand side of the plunger 82 is connected to the outlet conduit of the pump upstream of the throttle valve 94 and said conduit is provided with tappings controlled by a manually-operable valve 96 and a relief valve 92, as shown. In a final modification, Fig. 5, the delivery conduit of the pump 100 is connected to motors M1, M2 through throttle valves 104, 108 add reversing valves 106, 110 and is additionally connected to the left-hand side of the control plunger through check-valves 114, 122, as shown.
Patent GB-702984-A (GB)
Title: A method and apparatus for the construction of underwater structures
IPC: E02B3/06
Filed: 1949-10-17
Abstract: 702,984. Catapulting structural blocks into water. BETBEDER, J. Oct. 17, 1949 [Dec. 30, 1948], No. 26657/49. Class 78 (4) A concrete block 1 destined to form part of an underwater structure is placed on a wheeled carriage 9 by means of which it is given a momentum which carries it along a slideway 12, to which it is transferred while in motion and from the end of which it is projected into the sea. In the form illustrated the carriage 9 runs on a rail track 2 flanked by rollers 12 'forming the slideway and serving to raise the block from the carriage and mounted on a pontoon or boat. The rail track comprises a main pair of rails 2 and auxiliary narrow gauge rails 16 provided near the end of the runway to engage inner tyres 15 on the front wheels of the carriage. From points 17 and 18 respectively the tracks 2, 16 are inclined downwardly at a steeper angle than the plane of the rollers 12 so that the carriage is lowered from under the block. The carriage is propelled by an endless rope 7 passing round suitable guide pulleys such as 8 and a driving pulley (not shown). The block is loaded on to the carriage by means of jacks 10 on the latter which enable shims 4 supporting the block over the runway to be removed.
Patent GB-331749-A (GB)
Title: Improvements in or relating to built-up metal pulleys
IPC: F16H55/40
Filed: 1929-09-03
Abstract: 331,749. Kershaw, W. Sept. 3, 1929. Pulleys.-Pulleys are provided with an inner strengthening band or rim 4 to which are welded the semi-bulbous ends 2 of the spokes 1, which carry integral projections 3 riveted into holes in the inner and outer rims, which may be secured together by rivets 7. The parts may be formed in halves, in which case the inner rim-halves each have one enlarged end 8 overlapping a joint in the outer rim 5.