baber/WOPTO huggingface dataset:
Patent GB-1148546-A (GB)
Title: Blade guides for band slicer
IPC: B26D1/54
Filed: 1967-10-13
Abstract: 1,148,546. Slicing machine. AMERICAN MACHINE & FOUNDRY CO. 13 Oct., 1967 [7 Nov., 1966], No. 46820/67. Heading A4C. A slicing machine, preferably for bread, comprises a drive roller 12 driven by a motor 26 and three idling rollers 14, 16 and 18 over which a plurality of band saw blades 20 are mounted to give two passes 22 and 24 of each band saw blade, each pass being fed through a blade guide assembly including two stationary blade guide members 32 and 34 for each pass of a band-saw blade, and four shafts 36, 38, 40 and 42 mounted in parallel spaced relationship with the rollers, upon which are rotatably and slidably mounted a plurality of annular blade guides 44 each having an annular recess 45 in the periphery thereof for receiving the band saw blades, said blade guides being interconnected by means of a plurality of rods 56 each of which are received into a recess, 58, in the adjacent guide means, each band saw blade passing through the annular recess 45 of one rotatable blade guide in each side of the slicing area and all the band saw passes travelling in one direction passing through rotatable blade guides mounted on one of the two shafts on each side of the slicing work area, and all the band saw passes travelling in the other direction passing through rotatable blade guides mounted on the other of the two shafts on either side of the slicing work area, alternate band saw passes travelling in opposite directions. The stationary guide means may be moved laterally when it is desired to alter the thickness of slices, hence causing the band saw blades to move laterally and the blades will pull their rotatable guides to their new position. The angle of inclination of the blades to the infeed direction is advantageously 36 degrees and there is normally a substantial clearance between the bottom of the blade and the bottom of slot 45, the teeth of the blade normally being above the slot.
Patent GB-1006268-A (GB)
Title: Improvements in or relating to a frequency converters
IPC: H02H7/12
Filed: 1962-12-13
Abstract: 1,006,268. Frequency converting. F. R. SAUTER A.G., and AGIE A.G. FUR INDUSTRIELLE ELECKTRONIK. Dec. 13, 1962 [Dec. 13, 1961], No. 47194/62. Heading H2F. The description is substantially identical with that of Specification 1,006,269, but the claims are directed to the frequency converter provided with the safety circuit E. Specification 1,006,267 also is referred to.
Patent GB-1112180-A (GB)
Title: A process for the production of raw stock for the manufacture of sulphuric acid and cement from calcium sulphate residues
Inventor: HERZOG GUNTHER
IPC: C04B7/04
Filed: 1966-10-25
Abstract: Raw stock for cement and sulphuric acid manufacture is obtained by mixing, without a joint milling step, CaSO4 residues with the usual additions such as clay, sand, coke and pyrites, both the residues and the additions having a particle size less than 0.090 mms. Any coarse CaSO4 residue present after drying and calcining is comminuted before being added to the separately ground additives.
Patent GB-1443148-A (GB)
Title: Bifilar vibration dampers
IPC: B64C27/00
Filed: 1972-10-19
Abstract: 1443148 Helicopter rotors WESTLAND AIRCRAFT Ltd 1 Oct 1973 [19 Oct 1972] 48178/72 Heading B7W [Also in Division F2] A bifilar vibration damper comprises a pendulum mass mounted on a support by two pins located in opposed arcuate tracks in the mass and the support, the mass or its support being of U-shaped cross-section and receiving the other between its legs. In a prior damper, Fig. 1, the mass 11 swung on pins 12 mounted in circular holes 14 in the mass and its support 13. To prevent the parts becoming disconnected large washers 15 were necessary. The holes 14 are replaced in the present damper by arcuate slots 18, 19 of 180 degrees extent. The rolling surfaces may be formed by steel liners (11, Fig. 3, not shown). The slots may be machined in the mass and support (not shown) or formed in plates (20, Fig. 3) overlying circular holes. Three such dampers are arranged about a helicopter rotor system, each being supported at the end of an arm extending radially from a main rotor hub (not shown). The masses of the dampers oscillate in planes parallel or perpendicular to the plane of rotation of the rotor blades.
Patent GB-1488427-A (GB)
Title: Safety belt retractor
IPC: B60R22/405
Filed: 1975-11-24
Abstract: 1488427 Safety belt retractors ACIERS ET OUTILLAGE PEUGEOT 24 Nov 1975 [2 Dec 1974 31 July 1975] 48244/75 Heading A3V A safety belt retractor comprises a disc 8 fixed for rotation with a mandrel 2 rotatable in support 1, about which mandrel a belt C is wound under the action of spring 6, a flywheel 9 coaxial with disc 8 and rotatable with respect to the mandrel, a blocking means e.g. roller 20 being engageable with cavities 23 in ring 21 fixed to support 1, flywheel 9 having the same number of outer teeth 25 as the ring has cavities 23, and an acceleration detector having a pawl (26) whose point coincides with the median radial plane of a cavity 23 and which cooperates with teeth 25. Fast belt unwinding causes rotation of disc 8 relative to flywheel 9 and so ribs 15 on flywheel 9 push rollers 20 from notches 13 in plate 8 up ramps 13<SP>b</SP> into engagement with cavities 23 thus locking mandrel 2. Vehicle acceleration moves pendudium 30 to tip cup 32 and push pawl 26 into engagement with teeth 25 on flywheel 9, subsequent relative movement of disc 8 and flywheel 9 urges rollers 20 outwardly to engage cavities 23. Spring 17 biases flywheel 9 to apply rollers 20 against curved ends 13a of notches 13. In Figures 4-7 (not shown) rollers (53) have conical projections (64) normally engaging annular groove (62) in a guide member (60) and being guided by outwardly extending grooves (63) into cavity engagement. Spring (54) connected to disc (47) is inserted into one of three holes (56<SP>a</SP>, 56<SP>b</SP>, 56<SP>c</SP>) in flywheel (48) to determine the retractor's belt sensitivity.
Patent GB-1413682-A (GB)
Title: Locking mechanisms
IPC: B64F1/12
Filed: 1972-10-20
Abstract: 1413682 Releasable fastenings DECOTO AIRCRAFT Inc 20 Oct 1972 48515/72 Headings E2A and E2B Two mutually slideable tubular members are fastened by a split ring which is either expanded or contracted (by an axially moving ring with a chamfered ramp surface), so that it may engage or disengage from a circumferential groove. The ring may be chamfered to facilitate its expansion or contraction and is slotted at its inner periphery to make it more flexible. As shown in Fig. 7, the ring 134 locks elements 130 and 132 together and it expands to allow right-ward movement of element 132 when the actuator ring 136 is hydraulically moved to the left, (Figs. 8-10, not shown). The hydraulic piston may act radially into the split in the ring (Fig. 15, not shown). It is described (Figs. 16-21 not shown) how the ring may be released by an auxiliary ring or (Figs. 22-24, not shown) by a toggle link-work, both applied to a hold-back' bar for an aircraft being launched. In Fig. 40, there is shown a means for locking a sleeve 404 in various positions defined by circumferential notches 422 engaged by ring 430 controlled by hydraulically operated slider sleeve 434. Various other applications and modifications are described.
Patent GB-1241216-A (GB)
Title: Sleeve anchor
Inventor: BIXBY THOMAS GARTH
IPC: F16B13/06
Filed: 1968-10-14
Abstract: 1,241,216. Bolts. PHILLIPS DRILL CO. Inc. 14 Oct., 1968 [15 April, 1968], No. 48609/68. Heading F2H. In an anchoring device for securing a member 61 to concrete or masonry by a threaded bolt 24, having a conical head 54, which on tightening a nut 26 expands the lower end of a sleeve 22 into engagement with the wall of a hole 58, the lower end of the sleeve 22 is weakened to facilitate expansion of such end by an annular groove 48, holes 72, Fig. 8 (not shown), or teeth 64, Fig. 7 (not shown). The sleeve 22 may be made from flat sheet and rolled to tubular form and have apertures 32 to enable additional grip to be obtained when the sleeve is further expanded. Indentations 50 may be provided to hold the sleeve 22 on the bolt 24. Extension sleeves may be provided above the sleeve 22 for deep holes 11-13 (not shown) and knurling may be provided on the lower end of the sleeve 22.
Patent GB-1464068-A (GB)
Title: Machine for grinding peripheral facets on workpieces
IPC: B24B1/00
Filed: 1975-11-26
Abstract: 1464068 Grinding HERMANN WERNER 26 Nov 1975 [30 Dec 1974] 48651/75 Heading B3D A machine for grinding facets on the periphery of a workpiece W, Fig. 2, such as a screwdriver blade, comprises a rotatable holder 24, 25, Fig. 1, for the workpiece, and a rotatable support 2 for a grinding belt 10 on one or more grinding wheels 8, Fig. 3, which support moves part of the belt or the wheel or wheels into, through and away from a grinding position as the support rotates, the holder and support having a rotating mechanism which, in operation, synchronises the rotation of the holder and support and rotates them about parallel axes at speeds which are in a predetermined ratio so that the wheel or wheels or the parts of the belt grind a facet or facets on the workpiece in a cyclic manner as the workpiece rotates. The support 2 is mounted on an axle 1 which is supported in a bearing block 16 adjustably mounted on the bed of the machine and is driven by a cardan shaft 3 from a drive shaft 4 of a variable speed gear box 5 and electric motor 6. The gear box also has an output shaft 11 driving the chucks 24, 25 if the holder for the workpiece W which is fed from a magazine 22 and transfer bracket 23. The support 2 either carries a number of grinding wheels (8, Fig. 4, not shown) rotatable about axles (9) or a number of pressure rollers 7 rotatable about radially adjustable axles 9<SP>1</SP> on the support and arranged so that, upon rotation of the support, they sequentially engage the grinding belt 10 to engage it with the workpiece. In the embodiment shown having three grinding wheels or three pressure rollers and a ratio of 2 : 1 between the rotational speed of the support 2 and the workpiece, six facets are ground in the workpiece. Different numbers of grinding wheels or pressure rollers and different speed ratio varies the number of facets. Supporting rolls 13 disposed between the pressure rollers prevents loss of tension of the belt 10. The workpiece may be moved axially by a control piston when the facets to be ground are longer than the axial width of the belt or grinding wheels.
Patent GB-1405265-A (GB)
Title: Electrical component
IPC: H01G9/10
Filed: 1972-10-23
Abstract: 1405265 Capacitors; semi-conductor devices; resistors; component assemblies P R MALLORY & CO Inc 23 Oct 1972 [2 Nov 1971] 48766/72 Headings H1M H1K HIS and H1R [Also in Division H2] Casing 11 for an electrical component body 12 is sealed by an elastomeric member 21 having passages 22 therethrough each containing a rivet 23 having an upper flange portion 26 digging into an intermediate portion of the wall of a passage 22, connecting tabs 13 being welded one to the bottom of each rivet 23 and external leads 150 being welded one to the top portion of each rivet. As shown each rivet also has a lower flange portion bearing against the bottom surface of member 21. The component may be an aluminium electrolytic capacitor, a resistor, transistor or battery, or the casing may contain a combination of any of these. The rivets may be metal, and in assembling, a rivet with a hollowed out top end may be inserted into the passage and the top end then upset into engagement with the passage wall (Fig. 2, not shown). Alternatively the rivet may include a stem portion with a sleeve of thermoplastic material, the top of the sleeve being upset into engagement with the passage wall (Fig. 3, not shown). A projection 212 on member 21 reduces the risk of shorting between tabs 13. Member 21 is held in position by crimp 111 and/or turned over portion 112 of casing 11, which may he metal, alloy, or plastics.
Patent GB-1133239-A (GB)
Title: Bucket conveyor for concrete mixing machines
IPC: F15B15/18
Filed: 1966-11-02
Abstract: 1,133,239. Endless bucket conveyers. L. ZACCARON. 2 Nov., 1966 [6 Nov., 1965], No. 49036/66. Heading B8A. A bucket conveyer for feeding materials to a concrete mixer C is mounted on the latter by pivots 4, 5, and an hydraulic unit D driven by a motor 7 is used to traverse the conveyer frame about the pivots so that the conveyer buckets 8 work progressively into a heap of material to be shifted. The unit D comprises a paddle 17 rigid with a hinge pin 11 of the lower pivot 5. This works in a housing 16 under the action of pressure liquid fed by a pump 14. Adjustable relief valves 18, 18, 19, 19, are provided and additional valves 30, 30a have the effect of limiting pressure on the high pressure side of the paddle 17 during the normal travel of the latter. The valves 30, 30a, in addition, enable a higher pressure to be developed at the beginning of a fresh stroke (i.e. after a change of direction from right to left or vice versa). In operation, when the paddle, for example, is moving from right to left the dark shaded areas indicating high pressure liquid, the latter operates through one of the passages 32 to act on the right hand end-face of the left hand valve 30. When the pressure reaches a predetermined degree, the valve 30 reaches a position in its travel against the action of a spring 29 in which it allows the pressure to escape via a passage 33 to the low pressure side of the paddle 17. When the paddle 17 reaches the limit of its movement say to the left the direction of rotation of the pump 14 is reversed and the pressure acting now on the left hand side of the paddle 17 acts through the other passage 32 on the left hand end of the valve 30a. Due to the constricting effect of a further passage 34 in addition to the loading of the respective spring 29, the valve 30a moves rightwards only slowly and thus permits a high starting pressure to develop in the working chamber. In a modification (Fig. 4, not shown) the valves 30, 30a are omitted. A chamber 24 permits expansion of working liquid due to the effect of heat.
Patent GB-1013762-A (GB)
Title: Production of olefins
IPC: C07C17/10
Filed: 1963-12-12
Abstract: Olefins are produced from paraffins by brominating the paraffin, separating a monobrominated product and dehydrobrominating to the corresponding olefin.  The feed may be a C4-C20 normal paraffin or a mixture preferably not differing in chain length by more than 4 carbons.  Bromination is effected at 0-200 DEG  C. in the presence of u.v. light or ionizing radiation, water being added at reaction temperatures below 60 DEG  C. Conversion is maintained below 30%. The mono-brominated product is separated by distillation and unconverted paraffins recycled. Dehydrobromination is effected at 150-500 DEG  C. in the vapour phase, e.g. over diatomaceous earth, silica-alumina, boron phosphate or alkali-treated silica.  Bromine may be regenerated from the hydrogen bromide and reused; regeneration with oxygen and nitric oxide may be effected in situ in the bromination stage.
Patent GB-1411746-A (GB)
Title: Filters
IPC: B01D29/00
Filed: 1971-10-22
Abstract: 1411746 Filter R C J PRECISION LTD 23 Oct 1972 [22 Oct 1971] 49151/71 Heading B1D A filter for molten polymer comprises a series of axially abutting housing sections each defining a chamber, the upstream chamber 1 enclosing fine filter elements 12a acting in parallel with coarse filter elements 12b, and chambers 2, 3, 4 enclosing only fine elements 12a, the walls separating the chambers being so channeled as to direct filtrate from elements 12b into the upstream sides of chambers 2, 3, 4 and to direct the filtrate from all elements 12a into a central passage 35 leading to outlet 7. Elements are tapered, sintered bronze, steel or aluminium thimbles which push fit into tube plates 10, 30, 40. Plates 15 define spaces through which filtrate is directed to passage 35, which is made up of three tube sections. These spaces are bridged by tubes 20 which connect the upstream sides of the chambers. The filter may be enclosed by a steam jacket (not shown).
Patent GB-1443950-A (GB)
Title: Acylamido-penam-carboxylic acids and their derivatives
IPC: C07D333/24
Filed: 1972-10-25
Abstract: 1443950 Acylamido-penam-carboxylic acids and their derivatives GLAXO LABORATORIES Ltd 8 Oct 1973 [25 Oct 1972] 49256/72 Addition to 1399087 Heading C2C [Also in Division A5] The invention comprises 6#-acylamido-2,2- dimethylpenam-3α-carboxylic acids and non- toxic derivatives thereof wherein the 6#- acrylamido group is 2-phenoxyimino-2-(fur-2- yl)acetamido; 2-phenoxyimino-2-(thien-2-yl) acetamido; 2 - phenoxyimino - 2 - phenylacetamido; 2 - cyclopentyloxyimino - 2 - (fur- 2 - yl)acetamido; 2 - cyclopentyloxyimino - 2- (thien - 2 - yl)acetamido; 2 - t - butoxyimino - 2- (benzo[b]furan - 2 - yl)acetamido; 2 - methoxyimino - 2 - (N - methylpyrrol - 2 - yl)acetamido; 2 - t - butoxyimino - 2 - (N - methylpyrrol - 2 - yl) acetomido; or 2 - (thien - 2 - ylmethoxyimino)- 2 - (N - methylpyrrol - 2 - yl)acetamido, said compounds existing as syn isomers or as mixtures of such syn isomers and the corresponding anti isomers wherein the syn configuration predominates. They are made by acylating 6#-aminopenicillanic acid with the appropriate agent. Cyclopentyloxyamine HCl and N-cyclopentyloxyphthalimide are also prepared.
Patent GB-1242528-A (GB)
Title: Power plants
Inventor: JUBB ALBERT
IPC: G21C1/00
Filed: 1967-11-01
Abstract: 1,242,528. Gas turbine plant. ROLLS-ROYCE Ltd. Oct.29, 1968 [Nov. 1, 1967], No.49638/67. Heading F1G. [Also in Division G6] In a nuclear power closed cycle gas turbine plant, the gas cooled reactor, 10, is mounted within the pre-stressed concrete pressure vessel, 12, and the turbines 26, 36 the compressors 22, 30 and the recuperator 32 are disposed in a cavity 16 in the pressure vessel wall. Gas from the reactor flows through 18 to the turbine 26 driving the compressors 22, 30. The gas flows from turbine 26 to the turbine 36 which drives the shaft 38 and the alternator 40. The gas from turbine 36 passes over, and is cooled by, the tubes 33, in the recuperator 32. The gas passes from recuperator 32 into the pre-cooler 52, prior to entry into the compressor 22. On leaving 22, the gas is cooled in the intercooler 28, compressed at 30 and directed into the tubes 33 of recuperator 32, where it is heated. The gas returns to the reactor via pipe 20.
Patent GB-497875-A (GB)
Abstract: 497,875. Ignition systems. THIEMANN, A. E. Nov. 19, 1937, No. 31942. Convention date, Nov. 19, 1936. [Class 7 (iv)] An external spark-gap is arranged close to the sparking-plug, the leads, the plug and the source of current being screened to prevent high-frequency emission. The gap 4 is formed between conductors mounted in a block 5 and surrounded by an insulating sleeve 20. An enclosing metal sleeve 6 is secured by clips to the cable-sheathing 3 and cap-member 10, or to the continuation of the cable.
Patent GB-499826-A (GB)
Abstract: 499,826. Typewriters &c. UNDERWOOD ELLIOTT FISHER CO. July 28, 1937, No. 20873. Convention date, Sept. 25, 1936. [Class 100 (iv)] [Also in Group XIX] Carriage-returning mechanism; margin-stops.- A calculating machine having a travelling paper carriage carrying cams for controlling various machine functions is provided with power-driven means for returning the carriage and with a " full-return " key which, when depressed with the carriage in its fifth position, initiates return from this position, i.e. before the completion of the normal right-to-left movement. Moreover, the carriage is then returned an extra distance to the right. Further, by depressing the " full-return " key when the carriage is in positions 6-12, and then completing the normal right-to-left movement, the carriage is returned the extra distance to the right. When the carriage reaches the limit of its right-to-left movement, a cam 111 on the carriage rocks anticlockwise a three-armed lever 115 so that another arm 116 of this lever lifts a coupling member 103 to couple a motordriven shaft 97 to a pinion 104 engaging a carriage rack whereby the carriage is returned to the right until the coupling is disconnected by another carriage cam 122. The carriage then moves one step to the left under spring action until a projection 74 on the carriage meets the escapement lever 123. The " fullreturn " key 124 rocks a lever 138 to release the machine for operation and also by a connection 125, 126, 127, 133 allows a spring 132 to slide the three-armed lever 115 rearwardly out of the path of the cam 122 so that the return motion is continued an extra distance to the right until a cam 144 restores the lever 115, this action occurring after the key has been depressed in position 6-12. Depression of the " full-return " key 124 in the 5th carriage position causes the carriage to move one step to the left, a cam 142 pivoted to a block 143 then rocking the three-armed lever 115 to cause the carriage to return until the cam 144 engages the lever 115. Specifications 401,904, [Group XIX], and 414,143 are referred to.
Patent GB-1527099-A (GB)
Title: Rotary control valve in particular for use in a breathing system
IPC: A62B9/00
Filed: 1975-12-05
Abstract: 1527099 Rotary valve BENDIX CORP 5 Dec 1975 [13 Dec 1974] 50058/75 Heading B1L A rotary valve feeds air alternatively from inlet 78 to outlets 104 and 106 which lead to respective molecular sieve beds able to absorb nitrogen, the oxygen-enriched air from the bed on forward flow being delivered partly to a user (e.g. an aircraft crew member) and partly via a restriction (36, Fig. 1 not shown) to the output side of the other bed, through which it flows in reverse direction to purge the absorbed nitrogen from that bed, the purge gas leaving the bed and returning to the valve via outlet 104 or 106 and then being vented through outlet 110. The valve comprises a tubular casing with fixed discs 46, 92 at the ends and a shaft 28 rotated by motor 30 and carrying rotating discs 58, 72 which are spring loaded into sliding contact with discs 46 and 92. As shown inlet 78 is in communication via passages 82, 84, 98 with outlet 106 to feed air to bed (16) while purge gas from bed (18) returns via outlet 104 and passages 86, 90 to outlet 110. As the discs 58, 72 rotate to connect inlet 78 to outlets 104 and 106, they pass intermediate positions wherein wall 88 closes the ports 98, 100 leading to bath outlets while normally closed ports 54, 56 which connect to the downstream sides of the two beds, are briefly connected together by radial slots (60, 62) and annular groove 64 in disc 58, to equalise the bed pressures.
Patent GB-1450616-A (GB)
Title: Pipe connectors
Inventor: GEBELIUS S R V
IPC: F16L29/00
Filed: 1974-11-21
Abstract: 1450616 Pipe connectors S R V GEBELIUS 21 Nov 1974 [20 Dec 1973] 50506/74 Heading F2G A connector for mounting on a pipe 12 and enabling it to be connected to a transversely extending pipe 16<SP>1</SP> comprises a body formed of two parts 10, 10<SP>1</SP> which are clamped to one another around the pipe 12 in a fluid tight manner, e.g. by use of a jointing compound, the body part 10 having therein a passage for connection to the pipe 16<SP>1</SP> by way of a bush 16, and a bore 13 which partly intersects the wall of the pipe 12 within the body, the bore 13 containing a valve body 17 which can be moved axially within the bore and from the position shown so that the leading edge 17<SP>1</SP> thereof cuts off the intersected part 14 of the wall of the pipe 12 to establish connection with the interior of the pipe 12, the valve body 17 being retained in this position by the action of a spring 22 and being rotatable by means of a knob 20, so that a passageway 18 through the valve body may be used to provide flow communication and control between the pipes 12 and 16<SP>1</SP>. The axial movement of the valve body 17 may be effected by means of a blow to the knob 20, or, as shown, by use of an explosive cartridge 24 detonated by a firing pin 26. The cut-off wall part 14 is retained in a well formed at the blind end of the bore and fitted with plastics material 23.