baber/WOPTO huggingface dataset:
Patent GB-912275-A (GB)
Title: Improvements in or relating to catalyst manufacture
IPC: C08F10/00
Filed: 1961-06-20
Abstract: Ethylene may be polymerized, optionally with another olefin, at 100 DEG  to 500 DEG F. to normally solid polymers in the presence of a catalyst prepared by a process which comprises depositing chromium oxide or a compound calcinable thereto on a support consisting of silica, alumina, thoria or zirconia, at least part of the chromium in the catalyst being in the hexavalent state and said support having been heated with hydrated aluminium fluoride to increase the polymerizing activity of the catalyst.  The heating with aluminium fluoride may be effected before or after the deposition of the chromium compound.  Specified other olefins are propylene, 1-butene, 1-pentene, 1-hexene, 4-methyl pentene-1, 1,3-butadiene and isoprene. The polymerization may be effected in the gaseous phase, liquid phase or mixed phase, preferably in the presence of an inert hydrocarbon liquid diluent.  The catalyst may be activated by heating with an oxygen containing gas such as air.  Examples describe the polymerization of ethylene (I, II and III) and the copolymerization of ethylene and 1-butene (III) in n-pentane in the presence of a chromium trioxide, silicaalumina, hydrated aluminium fluoride catalyst activated by heating with air; and the polymerization of ethylene (IV) in the presence of chromium trioxide, silica, hydrated aluminium fluoride and chromium trioxide, alumina, hydrated aluminium fluoride catalysts activated by heating in air.  Similar results are said to be obtained using zirconia and thoria supports.
Patent GB-1002170-A (GB)
Title: Improvements in and relating to multiple-pole electric connectors
IPC: H01R24/38
Filed: 1962-06-08
Abstract: 1,002,170. Two-part couplings. O. DUNKEL. June 8, 1962 [June 9, 1961], No. 22239/62. Heading H2E. A polarized multi-pin plug and socket connector consists of a panel-mounted part, Fig. 1(b) which consists of a metal casing 1 in which is fitted a contact mounting block 2 with a number of spring contacts 3 arranged in a circle and a central socket 5, and a cablemounted part, Fig. 1(c) which consists of a metal casing 6 in which is fitted a contact mounting block 7 with a number of flat contacts 8 arranged in a circle and a central pin 9. A lock nut 13 with finger grips 18 is mounted on the casing 6 and is threaded at 16 to engage a thread 17 on the casing 1. Radial projections 19 on the casing 1 and matching recesses 20 in the casing 6, polarize the units. The casing 6 has a plastic extension 10 and a rubber sleeve 12 to seal the chamber in which the connections between the cable conductors and the contacts are made. A ring gasket 21 is provided to seal the interior of the casing 6. The central plug and socket contacts may be interchanged, Fig. 2 (not shown) or the whole of the contact mounting blocks may be interchanged, Fig. 4 (not shown). In a further embodiment, Fig. 3 (not shown) the panel-mounted casing 1 has a locating ring which engages the outside of the lock nut 13, the finger grips 18 being suitably shortened to allow this.
Patent GB-601399-A (GB)
Title: An all metal device for fixing nails or screws in precast concrete joists or other structural members
IPC: E04B1/41
Filed: 1945-08-29
Abstract: 601,399. Screw sockets. GULLIVER, H. W. Aug. 29, 1945, No. 22258. [Class 89 (i)] [Also in Group X] A metal device for embedding in a concrete unit for fixing nails or screws (see Group X), comprises two spaced plates A the marginal portions of which are bent at right angles and have alternate sections cut. away so that the two plates may interlock together, the edges of the remaining marginal portions being bent round afterwards to receive continuous tension bars C which take the tension arising from the wedging action of a nail or screw when driven into position between the plates. Fig. 2 shows the metal device as delivered to the workshop, before interlocking, the dotted lines showing an alternative form. The two plates are interlocked as shown in Fig. 1 and are spaced by a soft gauging strip E and held together by a binding wire D twisted at its ends, and the bars C are inserted. According to the Provisional Specification, the strip E may be of compressed fibre and the parts may be treated with damp-proofing.
Patent GB-864397-A (GB)
Title: Improvements in and relating to insole rib stripping
Inventor: STRICKLAND CONRAD CHARLES
IPC: A43B15/00
Filed: 1959-06-29
Abstract: 864,397. Laminates. PRIME MANUFACTURING CO. June 29, 1959, No. 22283/59. Addition to 824,652. Class 140. [Also in Group VII].  The insole rib stripping of the parent Specification, is modified in that the fabric facing to the fibreboard or like strip 1 and the tape 2 with its adhesive coated portion 3 are formed integral with one another, The strip 1 may be scored at 4, as in the parent Specification, to facilitate bonding the lower part thereof at right-angles for adhesion to the insole, and the adhered portion of the tape 2 may terminate above the point of flexure to incline the strip inwardly when secured.
Patent GB-475263-A (GB)
Title: Improvements in and relating to sliding doors
IPC: E05D15/38
Filed: 1937-08-13
Abstract: 475,263. Sliding doors. LEHWESS, E. E. Aug. 13, 1937, No. 22293. Convention date, Dec. 3, 1936. [Class 20 (iii)] A sliding door of the kind which lies below the ceiling when opened and is guided by two pairs of rails, one pair extending upwardly on each side of the opening and the second pair extending inwardly at right-angles above the opening and having downwardly curved extensions, has one pair of rollers 5 engaging the vertical guides and situated at the lower edge and one or more pairs of rollers 7 engaging the remaining rails. The Figure shows a door comprising three leaves in the open position the rollers 7, 71, 7<11>, provided at the pivots of the leaves all engaging the horizontal rails 8. The door is balanced by spring 13 and cable 9 connected to the lower edge of the door and led over pulleys 10, 11.
Patent GB-722632-A (GB)
Title: Improvements in or relating to mining machine heads
IPC: E21C25/58
Filed: 1952-09-05
Abstract: 722,632. Mineral-mining apparatus; rotar boring heads. COMPTON, C. E. Sept. 5, 195 [April 8, 1952], No. 22359/52. Class 68(1). In a rotary boring head of a mineral-mining machine one or more openings are formed in the side of the head so that mineral, which would normally cling to the inner surface of the head, projects through the opening or openings to engage the wall of the bore. The force set up between the projecting mineral and the wall causes relative movement to occur between the mineral and the inner surface of the head. In a preferred embodiment the head consists of an outer cylindrical structure 2 armed with cutters 8, 9 and 10 and provided with openings 11 which are helical and of the same pitch as a two-start helical conveyer 4 that enters into and is welded to the structure 2. The openings 11 lie between the continuations 14 of the bearing means 12 of the conveyer 4. The leading end of the conveyer shaft 3 is formed as a combined cutter and breaker 25, 21, whilst an annular combined cutter and breaker 16, 18 is positioned between the structure 2 and the cutter and breaker 25, 21. Openings are provided in the annular cutter and breaker 16, 18 to allow the passage of disintegrated mineral outwards. Specifications 675,440, 699,392, [Group XXII], and 711,628 are referred to.
Patent GB-578291-A (GB)
Title: Improvements in and relating to rotary internal combustion engines
IPC: F02B53/00
Filed: 1944-11-13
Abstract: 578,291. Rotary engines. JONES, H. G. C. Nov. 13, 1944, No. 22368. [Class 110 (ii)] The engine comprises cylinders 2 on a stator S, and pistons 6, on a rotor R, containing combustion chambers 7 each closed by a valve 12, and abutments 15 which may be hinged, or slide radially or axially to allow the pistons to pass out into the atmosphere at the ends of their strokes. The cylinders 2 may rotate around the part R, which would then be held stationary. Working fluid is fed through radial passages 10 under pressure, compressed in combustion chambers 7, each closed by a valve 12 when combustion takes place by means of a plug 8. Fig. 1 shows each abutment pivoted at 16 to an arm 17, pivoted at 18 by means of a bell-crank 28. Spring-loaded rods 14, acted on by cams on the stator, control the positions of the valves 12. Pins 22 co-operate with surfaces 23 to move the abutments to their closed positions when the surface is temporarily held by a catch 24 pivoted on a pin 25 until a pin 22 comes into position to move the catch about its pivot and release the part 23. The pin then proceeds to strike an arm 27 and the abutment is raised by a part 30 of the bell-crank 28. At the end of its outward movement an abutment 15 is rotated through the action of its tail 35 co-acting with studs 36.
Patent GB-1107604-A (GB)
Title: Method of and apparatus for recording and reproducing sound
IPC: H04R1/34
Filed: 1965-05-26
Abstract: 1,107,604. Sound recording and reproducing. R. W. DAVENPORT. 26 May, 1965 [2 June, 1964], No. 22437/65. Heading H4X. Sound recording and reproducing apparatus includes a microphone 10 comprising an array of divergent louvres 26 placed adjacent a sound sensitive side of the vibrating element 22, a loud-speaker 18 comprising an array of divergent louvres 34 placed adjacent a sound generating surface 30 and a recording and reproducing circuit connected between the microphone 10 and the loudspeaker 18. The directional positioning of the louvres may be adjusted. Sound insulating material 28 suppresses sounds radiated rearwardly of the microphone 10. Similarly sound insulating material 36 is mounted behind the loud-speaker cone or other sound-generating surface 30.
Patent GB-589872-A (GB)
Title: Improvements in or relating to process for the preparation of potassium hydroxide compositions, and the products resulting therefrom
IPC: C01D1/44
Filed: 1944-11-14
Abstract: A suspension of finely divided potassium hydroxide in an inert water-immiscible liquid is prepared by heating a mixture of potassium hydroxide, water, and the immiscible liquid to distil water and liquid therefrom, with continuous return of the said liquid, and while maintaining vigorous agitation.  The distillation is continued until all the free water has been removed.  The liquid may be an acetal or mono-or di-ether.
Patent GB-615938-A (GB)
Title: Improvements in or relating to work-holders or cramps
IPC: B23K37/04
Filed: 1947-06-26
Abstract: 615,938. Vices and clamps. ROOM, J. June 26, 1947, No. 22457/46. [Class 61 (ii)] A work-holder or cramp for holding workpieces for welding, soldering, brazing, &c. comprises opposed jaws A, A<SP>1</SP> each provided with a pivotal or ball mounting a and adapted to be secured by a pivotal or ball support a' to a base B in any position through an entire circle around the vertical axis by means of a clamp A<SP>4</SP> made up of opposed plates a<SP>2</SP> shaped at the ends to receive the balls and having a central clamp screw a<SP>3</SP>. A similar pair of jaws C, C<SP>1</SP> may be mounted on opposite sides of the base.
Patent GB-835420-A (GB)
Title: Transportable oil stove
IPC: F23D3/00
Filed: 1956-07-23
Abstract: 835,420. Stoves. HELKENBERG, F. July 23, 1956 [June 15, 1956], No. 22668/56. Classes 75(1) and 126 The annular wick 17, Fig. 2, of a portable oil stove comprising separable parts 1, 26 is raised and lowered by rotation of the upper part 26 by means of a handle 39. The parts are connected by a tube 27 secured to a saddle 41 attached to the upper part and having at its lower end a pin 28 adapted to be passed through a slot 13, Fig. 5, in a sleeve 11 inserted in a tube 10 mounted in a guide tube 7 secured to the lower part, turned through 180 degrees and then passed through a similar slot 13 in a sleeve 12 at the lower end of the tube 10. The wick is inserted in a threaded sleeve 18, Fig.. 4, and attached thereto by points 19 stuck up from the sleeve and fitted over the tube 7. A cap 21, rotatable through strips 38 secured to the upper part and engaging slots in the cap, includes a perforate basket 22 having a threaded sleeve 24 which is screwed on to the sleeve 18 so that station of the cap effects the raising and lowering of the wick. The strips 38 protect a glass section 30 of the upper part from damage by the handle 39.
Patent GB-227023-A (GB)
IPC: C09F9/00
Abstract: 227,023. Caspari, F. April 7, 1924. Pigments ; incorporating paint ingredients. - Impalpable metal dust produced bv chemical or metallurgical processes, such as electric precipitation, is incorporated with drying-oil or other paint medium under conditions preventing the admission of air. The fine metal acts as an oxygen-absorber and gives rapid drying-qualities to the paint. Suitable metals are manganese, lead, or zinc; linseed oil may be used as drying- oil.
Patent GB-276696-A (GB)
Title: Improvements in or relating to the production of fireextinguishing foam or foam producing liquids
IPC: A62C5/00
Filed: 1927-08-29
Abstract: 276,696. Excelsior Feuerl÷schgerate Akt.-Ges., and Burmeister, H. Aug. 28, 1926, [Convention date]. Addition to 251,950. Fire-extinguishing by foam. - The apparatus for producing foam described in the parent Specification is modified by the provision of an ejector having a number of small jets, in place of a single large ejector. The casing a of the device has mounted in it a conical hopper r communicating by a flat valve m with an ejector casing s provided with, for example, five nozzles e. The latter discharge into an expansion chamber k from which issues the foam pipe p. An ejector head g mounted within the casing s has nozzles corresponding with the nozzles l, and is supplied with water under pressure by a pipe 11 in which is a value h. From the latter branches a pipe t supplying a spraying pipe f surrounding the outlet d of the chemical hopper c. In the pipe f is a valve o. The outlet 4 is controlled by a valve e having a cylindrical part 3. The hopper c is closed by a cover 6 having a charging opening 7. The valves hand o are controlled simultaneously through rods v, u, and n - - z by a hand-wheel n which also simultaneously operates the valve e, the arrangement being such that the water valves open before the valve e. A pressure gauge 9 is linked to the pipe 11, and a vessel q for an extinguishing medium such as carbon-tetrachloride delivers to the hopper r by a pipe 13 under control of a valve 12.
Patent GB-641060-A (GB)
Title: Turn knobs for locks
IPC: E05B65/52
Filed: 1948-08-27
Abstract: 641,060. Hasp-locks. SPEGELSTEIN, E. and SUPER METAL STAMPINGS, Ltd. Aug. 27, 1948, No. 22709. [Class 44] A turn-knob for a hasp lock, rotatable to prevent withdrawal of the bolt of the lock, comprises two parts one attached to the bolt, and the other rotatable between two positions, a projection on one riding over lugs on the other part during the rotation to provide resistance. An outer annular stamping 1 with ears 2 and inwardly directed lugs 3, each extending over about 50 degrees, rotates on the key hole part 4 secured to the bolt of the lock by two lugs 5. The part 4 has depending projections 7, and the lugs 3, as the outer part is rotated, pass between these projections and the body of the lock so that resistance is provided. The rotatable part 1 may have an opening 6 cooperating with a projection on the lock in one position to permit withdrawal of the bolt. Specification 601,780 is referred to.
Patent GB-815541-A (GB)
Title: Improvements in joining electric conductors
Inventor: PEPPER LAURENCE REGINALD
IPC: H01R43/042
Filed: 1956-08-23
Abstract: 815,541. Jointing by stamping. POWER CONNECTORS Ltd. Nov. 25, 1957 [Aug. 23, 1956], No. 22760/56. Class 83 (4). A tool for deforming the surrounding member of a joint for electrical conductors comprises two or more jaws which are displaced relatively to one another by an explosive charge. The tool has a housing 2 with a gap 4 on one side to admit the connector 6 the split tubular part 10 of which is fitted over a transmission line 16 and closed by a key 18. A branch line is inserted in the tubular part 12 of the connector. The housing accommodates a fixed jaw 22 and a movable jaw 26 to which is fixed a pin 29 sliding in a slot 30 the pin 28 being connected to a pin 24 by a spring 36. The gap is closed by a pivoted link 34. The housing bore 44 accommodates a piston 40, a cartridge, a breech and firing mechanism (not shown). The tool may have a pistol grip and trigger-operated breech mechanism or it may have an inclined handle (Fig. 5). The tool may also be insulated and fired by remote control in the mid span of a live transmission line. Alternatively, the jaws are urged apart by a spring so that the charge forms the joint by impact rather than by pressure.
Patent GB-583693-A (GB)
Title: Improvements relating to friction clutches
IPC: F16D15/00
Filed: 1944-11-17
Abstract: 583,693. Friction clutches. KESTERTON, H. M. Nov. 17, 1944, No. 22849. [Class 80 (ii)] In a friction clutch of the kind having rollers or other wedging means located by a cage between the tapered conical inner surface of a driving (or driven) member and the correspondingly tapered polygonal outer surface of a driven (or driving) member, the cage is a resilient synchronizing member. As shown in Figs. 1 and 3, the driving member b, slidably splined on a driving shaft a, coacts with the driven member d through rollers e. The cage comprises a resilient split ring g lying across notches in the rollers e and having a gapped flange h which, on engaging the clutch by sliding the member b to the left, contacts the surface c and effects partial or full synchronization of the members b, d, before the rollers come intoaction. The ring g is prevented from rotating relative to the member d by a stop i which can be a plain peg, as shown, or a spring-loaded wedge pressing between mutally inclined ends of the ring g. In a modification (not shown), the ring g is located directly on the member d, and the rollers are unnotched.
Patent GB-403053-A (GB)
Title: Improvements in coin-testing devices for coin-freed automatic machines
Filed: 1933-08-16
Abstract: 403,053. Coin - freed apparatus. PITMAN & MILLARD, Ltd., and DICKENS, W. E., 111, Fore Street, Exeter. Aug. 16, 1933, No. 22859. [Class 27.] Testing coins.-Coin freed apparatus has provision for testing coins for the presence of a milled edge comprising a slide formed of two plates 1, 2 between which are located pivoted claws 7. The plates are secured together by rivets 24 passing through them and through a spacing member 3, leaving just sufficient clearance for the free movement of the claws 7, which are pivoted at 8 to the plate 1 and held by a spring 9 in engagement with the member 3. The whole device is slidably mounted in shallow grooves 11 in a main supporting plate 10 and a bridge member 12, and is normally urged forwardly by a spring pressed arm 16 engaging a pin 17 on the member 1 so that the plates 1, 2 abut against the front plate 13 in which the coin slot 5 is formed. If a smooth edged coin is inserted, it forces the claws 7 apart so that shoulders 21 thereon engage abutments 22, and entry of the coin is prevented ; if, however, a correct milled edge coin is inserted, the claws 7 bite into the edge thereof and the whole slide is moved backwards against the arm 16, which at a certain point acts to withdraw the slide completely and allow the coin to pass within the machine. The slide is subsequently re-set by an arm 23 operated by the actuation of the machine.
Patent GB-630529-A (GB)
Title: Improvements in or relating to bookbinding machines
IPC: B42C5/02
Filed: 1947-08-18
Abstract: 630,529. Bookbinding-machines. AULD, W. A. H., and AULD, J. T. Aug. 18, 1947, No. 22898. [Class 16] A backing mechanism for a bookbinding machine comprises means for relieving the pressure on the backing member during part of its working stroke. A book inner 2 is brought by feeders 13 between guides 1 and on a rail 3 into position below a backing roller 14 and clamped between rounding rollers 4 and clamps 5, one of which is reciprocable by a toggle 6 operated by cams on the main shaft 12. The roller 14 is carried on members 20 slidable vertically in members 21 slidable horizontally on bars 22 slidable vertically in guides 23 on end brackets 16. The brackets 16 and one guide 1 are horizontally adjustable on the machine frame by interconnected feed screws 17, 18, the screw 18 of the guide 1 having a pitch double that of the other, whereby the roller 14 remains midway between the guides 1 when the latter are adjusted according to the thickness of the book inner. The bars 22 are connected by longitudinal stretchers 24 braced by cross-ties 25 having bearings for a crankshaft 27 carrying at each end a bifurcated lever 38 in which slides a block 39. The block 39 is adjusted by a screw rod passing through a cap piece secured across the lever 38, and carries a crankpin 40 engaging one of the members 20. The shaft 27 has a pinion engaging a rack 30 carried on arms 31 keyed to a shaft 34 keyed to a pinion 33 engaging a rack 36 adjustably connected by a turnbuckle 64 to a rod 63 actuated by a cam 60 on the shaft 12, whereby the shaft 27 is oscillated to move the pins 40 and roller 14 through an arcuate path. The slide members 22 are secured to links 47 pivoted to pressure rods 48 pivoted to the brackets 16 at 49 and connected adjustably by eccentric bushes 54 to brackets 51 slidable on rods 52 between compression or tension springs 53, or blocks of rubber. The rods 52 are reciprocated by cams on the shaft 12 so as to lower the roller 14 against the book inner and apply pressure thereto during the movement of the roller from its central to each of its extreme positions, and release the pressure during the return stroke. The backing member may be of slipper form. In another form, the pressure is applied by weights on the levers 48. Specification 593,855 is referred to.
Patent GB-1360540-A (GB)
Title: Writing surface
IPC: C09J7/22
Filed: 1972-05-16
Abstract: 1360540 Adhesive writing surface NOVOTHERM AG 16 May 1972 [17 May 1971] 22913/72 Heading B2E A chalk-writing surface comprises a flexible carrier foil having a pressure-sensitive adhesive layer on one side allowing successive application onto and removal from a surface, and a rough surface coating to accept chalk writing on the other side. The foil may be polyethylene or polyvinyl chloride sheet and the adhesive may be that referred to in U.S.A. Patent Specification 3,130,113. A release layer may be applied to the adhesive. The rough layer may comprise polyethylene mixed with quartz, sand, metal alloy and/or metal oxide powders. The writing surface is applicable to any smooth surface.
Patent GB-757095-A (GB)
Title: Improvements in the recovery of callicrein
IPC: C12N9/64
Filed: 1953-08-20
Abstract: Callicrein is recovered from pancreatic autolysates or thermolysates of pH 4 to 8 by addition of an aqueous solution of a water soluble salt of lead or zinc e.g. acetate, nitrate, and eluting the hormone from the precipitated adsorbate.  The elution may be effected within the pH range 6,9 to 8,3 using a phosphate buffer e.g. diammonium phosphate solution (pH 7,6 to 7,7), sodium carbonate, sodium bicarbonate or dilute ammonia. The eluate may be dialyzed, and the hormone precipitated by addition of an organic solvent e.g. acetone, ethyl alcohol or mixtures thereof, and may then be dried to yield a stable product. The thermolysates may be obtained according to the process of Specification 709,054.  A statement of prior art refers to (a) a method of producing unstable solutions from a zinc hydroxide adsorbate; (b) production of lead phosphate adsorbates; both (a) and (b) occuring in urine.