baber/WOPTO huggingface dataset:
Patent GB-1035233-A (GB)
Title: Recovery and production of bisphenol-a
IPC: C07C39/16
Filed: 1963-02-14
Abstract: Crude 2,2 - bis - (4 - hydroxyphenyl) - propane, which has been produced by a phenol-acetone acidic condensation, is purified to f.p. more than 156.5 DEG  C. by (1) distilling more volatile materials therefrom, (2) distilling it from less volatile materials and (3) extracting the distillate with a chlorinated aliphatic hydrocarbon (except CH2Cl2 or C2H4Cl2) of b.p. below 130 DEG  C. and which dissolves at least 30 times as much of the impurities contained in the distillate as of the bisphenol itself. Prior to step (3), the distillate may be crystallized and the mass broken up into grains.
Patent GB-550689-A (GB)
Title: Power transmission gearing
IPC: F16H57/10
Filed: 1941-05-12
Abstract: 550,689. Turning-gear. JACK & HEINTZ, Inc. May 12, 1941, No. 6129. Convention date, May 4, 1940. [Class 7 (v)] [Also in Groups XXIV and XXXIV] In impulse engine turning gear, the clutch member 91 is splined to a shaft 45 carrying epicyclic pinions 75, the meshing sun gear 39 of which is driven by an electric motor 9 through reduction gearing 23, 25, 33, 35, the motor shaft having a flywheel 21 secured thereto. The planetary pinions 75 mesh with a reaction annulus consisting of a plurality of internally toothed annuli 77. Interleaved with the latter are friction annuli 79 rotatably keyed to a ring 81. One edge of the ring 81 has a camming engagement with a fixed ring 83. The annuli 77, 79, are pressed together by springs 89 the pressure of which can be varied by varying the thickness of washers 94. In operation, the motor 9 is started to speed up the clutch member 91, the latter is then moved axially into engagement with the engine shaft to be turned ; if the resistance to movement exceeds a predetermined amount the reaction causes the ring 81 to move circumferentially relatively to the ring 83 and the resulting camming action tends to separate the annuli 77, 79, and thus limit the value of the torque transmitted to the clutch member 91.
Patent GB-1439743-A (GB)
Title: Starter motor lockout system for an internal combustion engine
IPC: F02N11/08
Filed: 1975-02-13
Abstract: 1439743 Starting internal combusion engines MULLARD Ltd 13 Feb 1975 6151/75 Addition to 1439525 Heading H2H A starter motor lockout system for an internal combustion engine as claimed in co-pending Specification 1,439,525, comprising the addition of a frequency-to-D.C. converter DPC which is connected by way of a differential amplifier AMP, resistor R5 and capacitor C3 to receive the A.C. output of the transducer T, the converter DPC including a thyristor TH which is rendered conductive when the output frequency from the transducer T has attained a given frequency, i.e. when the engine is rotating at a predetermined speed, the conduction of the thyristor TH rendering transistor TR4, TR5 non-conductive to de-energize the auxiliary starter relay SCR so to de-energize the starter motor. Thus at a certain engine speed the starter motor is de-energized even with the starter switch SB held closed.
Patent GB-1169245-A (GB)
Title: Improvements in and relating to Injection Moulding
Inventor: SANDERS NORMAN THOMAS
IPC: B65D75/36
Filed: 1967-02-09
Abstract: 1,169,245. Casting composite articles and joints. NEEDLE INDUSTRIES Ltd. 16 Jan., 1968 [9 Feb., 1967], No. 6230/67. Heading B3F. [Also in Divisions B5 and C1] A method of forming and attaching a functional part, e.g. of metal, on a base member, comprises injecting the metal into an opensided mould cavity through an aperture in the base member, the latter serving to close the open side of the mould cavity. To provide mechanical keying between the metal and base member, the latter may have indentations or apertures which allow the metal to penetrate into or through it. A number of mouldings may be produced simultaneously on a base by having a heated plate between the injection nozzle and the base, the plate having a number of passages leading to a plurality of outlets each feeding a mould cavity. The functional part may be for attaching an article to the base member temporarily, or merely decorative.
Patent GB-248771-A (GB)
Title: Improvements in or relating to automatic fire-arms
IPC: F41A3/40
Filed: 1926-03-05
Abstract: 248,771. Destree, J. March 7, 1925. [Convention date]. Machine guns.-A long barrel-recoil gun has a barrel and breech-block both of comparatively light weight so that they reach their rear position before the bullet has left the barrel and are held in this position by the back pressure. When the bullet has left the barrel, the barrel and breechblock move forwards a short distance to unlock the breech-block, and the barrel then returns alone to open the breech. As shown in Fig. 1, the breech-block 4 is locked to the barrel 1 by a hook 5 pivoted on the breech-block and engaging a stud 9 on the barrel. Pivoted to the hook is a lever 7 which during the first part of the return movement engages a shoulder 12 on the breech frame, and actuates the locking hook 5. The lever 7 is released from the shoulder, towards the end of the forward movement of the barrel, by a projection 13 on the barrel. In the construction shown in Fig. 2, the barrel 1 and breech-block 4 are connected by toggle links 14, 15 adapted to be broken during the forward movement of the barrel. During the recoil, projecting ends 16 of the middle pivot of the toggle slide through longitudinal slots 19 in side pieces 20. The rear ends of these slots are closed by flaps 21 so that, during the return, the pivot ends 16 ride over the tops of the side pieces 20.
Patent GB-1291764-A (GB)
Title: Method of and apparatus for spooling wire and the like filamentary material
IPC: B65H54/28
Filed: 1970-02-10
Abstract: 1291764 Traverse control NOKIA AB OY 10 Feb 1970 [10 Feb 1969] 6412/70 Heading D1J [Also in Division G1] In apparatus for feeding wire 1 (Fig. 1) on to a reel 4 using a distributor 3 to ensure that the wire is fed from one spool cheek to the other, misalignment between the position of a spool cheek relative to the change in direction of the moving carriage 7 of distributor 3 is sensed by either a variation in the tension of the wire, causing the. arm 2a of an accumulator spool 2 to swing from its normal position, thereby moving the slider of a potentiometer 5, or a variation in the rotational speed of the reel 4 sensed by a tachgenerator 9. The. signals are fed through an averaging circuit to an amplifier which senses changes in the input, to either modify the direction-reversing points, or to control the speed of travel of the carriage 7.
Patent GB-1124372-A (GB)
Title: Improvements in or relating to suspension systems
Inventor: OLIVER ROY EDWARD
IPC: B60G17/027
Filed: 1966-02-14
Abstract: 1,124,372. Resiliently mounted seats. W. S. VOORHIES. 14 Feb., 1966, No. 6413/66. Heading A4U. [Also in Divisions B7 and F2] A suspension system for a vehicle wheel, pipe or vehicle seat comprises an unsprung member 47 carrying, through a support spring 32, a sprung member 28, means 30 for applying to the sprung member 28 a force equal and opposite to a change in dynamic load that is transmitted thereto on vertical relative movement of the support and sprung members, and means 29, responsive to changes in the level of the sprung member 28 caused by static load changes thereon, for restoring the predtermined level at a frequency greater than the natural frequency of the sprung member 28 and less than the natural frequency of the support member 47. In Fig. 5, as applied to a road vehicle the means 30 comprises a cam 43 engaged by a roller follow 41 which is acted on by a compression spring 42 within a longitudinal arm 31 which is pivoted at 39 to' the sprung member 28, the cam form and the rates of the springs 32 and 42 being chosen to provide "zero-rate" springing. The means 29 comprises a double-acting hydraulic servomotor 48 which is controlled by a control valve 62 connected to the arm 31 through a link 84 and acts on either the cam 29 or the upper seat 33 of the spring 32 (Fig. 7, not shown) to adjust the mean position of the cam 29 for any vehicle load to that in which the vertical force component of the device 29/41 is zero. In an alternative, Fig. 8, a wheel spindle 127 is carried by a pair of transverse arms 119, 121 and the inner end of the lower arm 121 carries a four lobe cam engaged by four radially arranged spring- loaded roller followers in a housing 136 and vehicle load changes are compensated for by moving the upper abutment of a suspension spring 126. The housing 136 may alternatively be fixed to the arm 121 and the cam to the frame. A leaf suspension spring may be used in place of coil spring 32 or 126.
Patent GB-553054-A (GB)
Title: Improvements in and connected with holders for electric fuses
IPC: H01H85/20
Filed: 1942-05-12
Abstract: 553.054. Electric cut-outs. CRABTREE & CO., Ltd., J. A., McLOUGHLIN, H., HILL, W. E., MORGAN, R. W., and WINTLE, T. D. G. May 12, 1942, No. 6415. [Class 38 (i)] A holder for a fuse of the tubular or cartridge type comprises two parts which are kept in engagement with the fuse by a spring that embraces the parts, the end caps of the fuse being exposed for reception in the holding-clips. The holder consists of two similar mouldings a, a<SP>1</SP>, Fig. 1, each having a flat uper portion b with a depending semi-cylindrical portion c formed with an external groove for receiving a C-shaped spring e. Annular shoulders formed on the inner surfaces of the parts c abut against the end caps i of the fuse and prevent it from moving endways. Undercut grooves are formed in the parts b to provide recesses for retaining identification plates k, and an opening l between these plates enables the condition of the fuse to be seen. Recesses m are also formed in the parts b to provide a gripping surface for manipulating the holder. In a modification, a pivoted handle n, Fig. 5, is provided for facilitating manipulation of the holder. The handle has flat inturned ends n<SP>1</SP> which outer openings in the parts a, a<SP>1</SP>. The ends e<SP>1</SP> of the spring e are inturned and are forced by springs g into contact with the ends n<SP>1</SP> to retain the handle in the lowered or raised position.
Patent GB-432374-A (GB)
Title: Improvements in or relating to boxes, cartons and like containers
IPC: B65D5/58
Filed: 1934-02-28
Abstract: 432,374. Biscuit boxes &c. ROBINSON, Ltd., E. S. & A., ROBINSON, H. G., and DUFTY, S., 1, Redcliff Street, Bristol. Feb. 28, 1934, No. 6437. [Class 18] A substantially airtight and damp-proof lined box, carton or like container, e.g. for foodstuffs such as biscuits has its body made, e.g. from a waxed cardboard blank shown in Fig. 6, of which panels a form the sides and panels c the bottom, flaps b being turned over inwardly at the top. The structure is secured by wire stitching or glueing a flap d and by stitching the bottom. The lining which may be of metal foil or of cardboard coated with tin, aluminium, &c., foil or of waxed cardboard, is formed from a blank shaped as shown in Fig. 2, the bottom c<1> being stitched and the upper edge turned over outwardly. The lid, which may be waxed or lined with metal foil, is made from the blank shown in Fig. 5, and is in general similar to that described in Specification 413,380. The sides are double, flaps p taking beneath flaps l, and lateral extensions x being cut away at the corners to form interlocking junctions. Bands q of adhesive are also employed. Tongues t are cutfrom the lid which fit between the two shells in the manner shown in Fig. 7. Other forms of cover shown in Specification 413,380, may be employed or any other suitable construction. The outer shell may be of about half the height of the inner shell and may be constructed in the same way as the cover. The material of the container may be treated with bitumen or lined with bitumen paper.
Patent GB-200137-A (GB)
Title: Improvements in and relating to safety devices for internal combustion engines for preventing back-firing
IPC: F02M1/00
Filed: 1922-03-04
Abstract: 200,137. Gerlach, H. March 4, 1922. Drawings to Specification. Induction pipes, fittings for.-A device to prevent back-firing comprises two or more sheets of metal gauge which support heat-abstracting bodies in the form of spaced balls, and are placed across the inlet pipe, either transversely or obliquely; they may be dome-shaped. Rods or gratings may also be provided to space the balls laterally.
Patent GB-1184036-A (GB)
Title: Thermometers
Inventor: GIBBS ANTHONY R
IPC: G01K5/26
Filed: 1969-02-06
Abstract: 1,184,036. Thermometers. G.H. ZEAL Ltd. Feb.6, 1969, No.6481/69. Heading G1D. A thermometer comprises a base-plate 3 having an elongate channel 2 for receiving a thermometer tube 1 the tube having a pair of resilient collars 7, 8 positioned thereon, one towards each end and located against abutments 9, 10 in recesses 11, 12 in the base-plate 3 the base-plate also having two pairs of apertures 19, 20 adjacent each collar 7 or 8 and the thermometer also comprising a cover (not shown) formed with bridge pieces which engage in the recesses 11, 12 and which are formed to fit round the collars 7, 8 on the thermometer tube 1 to hold it in place, pegs on the cover extending through the apertures 19, 20 the free ends of the pegs being locked behind the base-plate 3. The base-plate and cover may be moulded from plastics material and the pegs on the cover may in this case be deformed by heating to lock them in place in the apertures 19, 20. Otherwise washers or rings could be used. The bridge pieces in the cover plate may form part of a rectangular wall thereon which engages in recesses 13, 14 as well as the recesses 11, 12 when the cover plate is located on the base-plate 3. An annular wall 6 is formed on the plate 3 to surround the thermometer bulb 4 and a grille 42 may be held in place between the rim of this wall and an aperture in the cover plate to allow free circulation of air to the bulb 4. The bridge pieces may be formed separately from the cover plate, if desired.
Patent GB-1453686-A (GB)
Title: Line switching system
IPC: H02H9/02
Filed: 1974-02-13
Abstract: 1453686 Arc extinction in switches HUGHES AIRCRAFT CO 13 Feb 1974 [16 Feb 1973 26 Dec 1973] 6536/74 Heading H1N [Also in Division H3] A switching system comprises, Fig. 3, an inline branch 62 with a switch 42 for carrying normal circuit current and a parallel connected interrupter branch 64 having a series arrangement of a precharged capacitor 46 of voltage rating less than the line voltage rating of the circuit, a crossed-field switching device 50 and a current limiting inductor 44 and resistor 48. In operation the switch 42 is first opened and arcs, the device 50 is made conducting so that the capacitor 46 discharges in a direction to cause a current zero in switch 42 following which the conduction voltage of the crossedfield device 50 permits a recharge of the capacitor whilst the switch 42 deionizes whereupon the device 50 is turned off and the time cycle is such that the voltage applied across the capacitor is limited to less than the normal line voltage. In another embodiment, Fig. 5, aseries of line and interruptor branches, to absorb greater system energy has two branches 76, 78 each with respective current limiting resistors 80, 82 in parallel and in operation the system is sequence switched through the in-line branches 72, 70 and 68 in turn with each interruptor branch 78, 76, 74 respectively acting as already described. The system can be used for interrupting either D.C. or A.C., the only requirement in the latter case being that the crossed-field switching device must be able to conduct in either direction. Fig. 6 shows the system applied to limitation of A.C. through a permanently connected resistive branch 94 when the in-line branch is open. In further embodiments, Figs. 7, 8, 9 (not shown), the circuits are correspondingly similar to Figs. 3, 5, 6, except that the in-line branches consist of SCRs with gate control, and the switching mode time is much shorter. Specifications 1,403,279; 1,333,685; 1,332,771; 1,321,018; 1,278,972 and 1,243,655 are referred to.
Patent GB-1493987-A (GB)
Title: Processing aid for polyvinyl chloride
IPC: C08F259/04
Filed: 1975-02-17
Abstract: 1493987 Polyacrylate-modified vinyl chloride polymer; polyvinyl chloride compositions STAUFFER CHEMICAL CO 17 Feb 1975 [20 Feb 1974] 6538/75 Heading C3G A polyacrylate-modified polyvinyl chloride processing aid comprises (a) a copolymer of vinyl chloride copolymerized with a mixture of methyl methacrylate and ethyl acrylate and (b) a mixture of methyl methacrylate and ethyl acrylate grafted on to said copolymer. The processing aid is produced by polymerizing vinyl chloride in aqueous suspension to 60 to 80% conversion, adding a mixture of methyl methacrylate and ethyl acrylate and continuing the polymerization and then adding an additional quantity of said mixture and completing the polymerization. The polymer produced is incorporated in a polyvinyl chloride formulation.
Patent GB-291537-A (GB)
Title: An improved orthopaedic bed
IPC: A61G7/00
Filed: 1927-03-09
Abstract: 291,537. Thomas, M. March 9, 1927. Mattresses. - Each side bar 1 of a bedstead has movably mounted near it, a tube 26, and the transverse bands constituting the bedbottom or mattress are mounted alternately as shown in Figs. 4 and 5. When either of the tubes 26 is disengaged from its corresponding bar 1, by removing the pin 27, and then lowered, alternate bands 2 are lowered clear of the patient's body, the others remaining in position. The bands 2 are preferably endless bands, with adjustable lacing 28. Specification 291,538, [Class 52 (ii), Furniture for sitting &c. upon], is referred to.
Patent GB-1136983-A (GB)
Title: Thermoluminescent dosimeter and method
IPC: G01T1/11
Filed: 1966-02-15
Abstract: 1,136,983. Moulding plastic substances. E.G. & G. Inc. 15 Feb., 1966 [15 Feb., 1965], No 6564/66. Heading B5A. [Also in Division C4] A thermoluminescent element for a dosimeter is made by a hot-pressing process in which the powdered material is first flushed with dry inert gas (e.g. helium) and, while the flushing continues, pressing the material at a temperature of 700-900‹ C. and a pressure of 30,000- 125,000 p.s.i. The material may be packed into a mould and compressed by a die whilst being heated by an induction coil, Fig. 2 (not shown). Alternatively the material may first be packed cold under a pressure of 10,000 p.s.i. into a steel ring (39) which is then hot-pressed with the material, Fig. 6 (not shown). In both cases the compressed product is sliced by a saw into discs 30-50 mils. thick. Materials used may be LiF, CaF[Mn], CaSO 4 , or coprecipitated CaF+MnF.
Patent GB-104958-A (GB)
Title: An Improved Tobacco Pipe.
Inventor: HUTTON JOSEPH
IPC: A24F1/26
Filed: 1916-05-10
Abstract: 104,958. Hutton, J. May 10, 1916. Tobacco pipes.-The bowl B is formed with an annular recess C and fitted with a cylindrical lining A, a perforated piston K pressed upwards by a spring G or screw, a hinged cover L, and a base plug M secured by a screw, spring catch, &c. Smoke passes through perforations in the upper part of the lining into the annular space in communication with the bore of the stem D. The lining may be formed with lugs E or fitted with a grating to retain the tobacco.
Patent GB-484845-A (GB)
Title: Means for excavating comparatively deep but narrow trenches
IPC: E02F3/96
Filed: 1937-03-06
Abstract: 484,845. Excavating trenches. MENCK & HAMBROCK, GES. March 6, 1937, No. 6720. Convention date, March 6, 1936. [Class 68 (i)] In a scoop-arm excavating machine, the scoop 8 is replaceable by a trenching- bar 12 which digs the trench as the arm 3 is rocked. The scoop 8 is normally pivoted at 4 to the arm 3 and at 7 to a bar 5 adapted to be held by a catch 10, and slidable along the arm 3 between the pivot 4 and stop 11 on release of the catch. The bar 12 carries an interchangeable plate 13 and blade 14 of desired profile. A member or members 15, Fig. 1b, may be attached to the bar to displace the spoil sideways from the trench, or a bucket 16, Fig. 2, may be secured at each side of the bar to collect the spoil, the base of the bucket being so inclined to the bar 12 that angular movement of the latter is not restricted.
Patent GB-753874-A (GB)
Title: Improvements in rainwater guttering
Inventor: BARCLAY WILLIAM ALAN
IPC: E04D13/064
Filed: 1954-03-08
Abstract: 753,874. Guttering. COLAMIN RAINWATER PRODUCTS, Ltd. March 2, 1955 [March 8, 1954 ; March 17, 1954], Nos. 6736/54 and 14463/54. Class 20(4). A length of guttering of general arcuate or other channel section with mainly. converging side walls, has two or more external projections on one side, spaced longitudinally and constituted by the exterior of integrally formed, inwardly facing recesses or by separate elements welded or otherwise permanently connected to the exterior of the guttering, the projections presenting surfaces, in a plane substantially parallel to the longitudinal medium plane through the bottom of the channel, for engagement with a facia board and apertures through the projections for the passage of fixing screws, bolts or the like. As shown in Fig. 1, the projections 1 are formed by recesses 2 extending from the edge 3 'of the guttering and are produced during casting in iron, the projections having a flat surface 4 for engagement with a facia board to which they are secured by screws or rivets through holes 5. The recess 2 is formed with inwardly sloping sides 7 and bottom 6. In Figs. 6, 7, a similar projection 12, with flat surface 11 from the top edge 9, hole 16, and converging sides 18 and bottom 14, is of less depth and has a web or webs 13 cast on the under-side, with outer edge 15 coplanar with the edge 11. As shown in Fig. 7, the recess 8 (or 2) receives the web 13 and part of the projection 12 (or the projection 1) when guttering is nested together so that little extra space is required in storage. As shown in Fig. 9, where guttering is formed of sheet metal, the projections 19 are formed from strips of the metal bent as shown and spot-welded at one end 20 adjacent the edge 21 of the guttering and at the other end 22 at the bottom of the guttering, so that the part 23 forms the flat surface which is secured to a facia board through holes 26. Preferably the guttering is stepped at 24 as shown so that a flat surface 25 is presented to be against the flat surface 23. The guttering is provided with a socket at one end and the projections are spaced at intervals suitable for cutting into shorter lengths if desired.