baber/WOPTO huggingface dataset:
Patent GB-978261-A (GB)
Title: Platinum group metal catalysts
IPC: B01J29/068
Filed: 1961-01-20
Abstract: Specially prepared catalyst comprising a platinum group metal mounted in a crystalline aluminosilicate (see Division B1) are used to hydrogenate benzene (in the presence of hydrogen at 30 p.s.i.g. and at a temperature of 145 DEG  F.) to yield cyclohexane. Other catalysts are used to dehydrogenate cyclohexane (Example 3), to hydrogenate triethylbenzene (Example 6), n-butene and iso-butene (Example 13) and comparisons are made of ease of entry of various molecular shapes into molecular seive catalysts. U.S.A. Specifications 2,306,610 and 2,413,134 are referred to.ALSO:A method of preparing a platinum group metal-containing catalyst comprises introducing into a crysalline aluminosilicate zeolite or into the reaction mixture for preparing such zeolite, a platinum group metal compound to effect deposition on or distribution within the crystalline structure of the zeolite of the platinum group metal and subjecting the resulting product to thermal treatment at a temperature in the approximate range of 250-1100  DEG F. to effect at least partial conversion of the platinum group metal to a catalytically active state.  The crystalline aluminosilicate may have a rigid three-dimensional network of uniform interstices sufficiently large to permit introduction by ion exchange of a platinum group metal-containing ion.  Reference is made to sodium aluminosilicates and especially synthetic varieties such as those of the "A" and "X" series. The Na+ ions of aluminosilicates to be impregnated may be replaced by Ag+, Mg++ and Co++.  Pore sizes of the catalyst are disclosed.  Examples are given.  U.S.A. Specifications 2,306,610 and 2,413,134 are referred to.
Patent GB-1025342-A (GB)
Title: Improvements in or relating to grippers
Inventor: HALL KENNETH JOHN
IPC: B65B13/02
Filed: 1964-01-21
Abstract: 1,025,342. Wire grippers. FREDK. A. POWER & SONS Ltd. Jan. 21, 1965 [Jan. 21, 1964], No. 2535/64. Heading F2G. A wire gripper assembly comprises a fixed gripper and a movable gripper, the former being rigidly mounted on one end face of a U-shaped base member and the latter being slidably mounted on two rods for movement between the two legs of the U -shaped base. Both grippers have a similar construction and include a pivotally mounted jaw 28, the lower edge 30 of which is serrated and a base 41. The base 41 is provided with a plug 42 the height of projection of which above the base 41 being adjustable to form a step 53 across which a wire or the like 52 passes when the gripper is in use. The jaw 28 is spring loaded into its gripping position and the tooth 54 of the jaw co-operates with the wire initially at a point between the axis of the pivot 27 of the jaw 28 and the step 53. The movable gripper is actuated by a spring-loaded lever and the fixed gripper is de-activated by a pivotally mounted plate. The grippers are held in their assembled condition by cover-plates.
Patent GB-393900-A (GB)
Title: Ammunition projectile fuzes
IPC: F42C9/02
Filed: 1933-01-26
Abstract: 393,900. Projectile fuzes. ALGRAIN, P., 282, Rue du Noyer, Brussels. Jan. 26, 1933, No. 2538. Convention date, Jan. 26, 1932. [Class 9 (i).] Relates to time-fuze mechanisms driven by a rotatable mass kept stationary in space by inertia while the projectile rotates by virtue of the spin imparted to it by the rifling, and consists in mounting the rotatable mass 5 on a screw spindle 4 freely supported by bearings 3b, 3d and provided with a shoulder 4d against which the mass 5 sets back while the projectile is travelling through the gun. During this period, friction can make the spindle 4 rotate with the projectile without transmitting this rotation to the mass 5 ; but when the mass abuts the shoulder 4d, the spindle becomes stationary with the mass while the projectile continues to rotate. This relative rotation drives through the gearing shown a member 12 coupled by friction to a time disc 13, which has been released by a centrifugal bolt 15 and at the appointed time releases the centrifugal trigger 18 of a spring striker 9.
Patent GB-1246953-A (GB)
Title: Polymeric sulphonic acids and salts
Inventor: BONIN WULF VON
IPC: C08F22/06
Filed: 1970-01-20
Abstract: 1,246,953. Polymeric sulphonic acids and salts. FARBENFABRIKEN BAYER A.G. 20 Jan., 1970 [29 Jan., 1969], No. 2615/70. Heading C3P. Alkali metal salts of polymeric sulphonic acids and the corresponding acids are made by reacting an alkali metal salt of an aliphatic, cycloaliphatic, araliphatic or aromatic aminomono-sulphonic acid or amino-polysulphonic acid at above 120‹ C. in an aqueous medium with a maleic anhydride homopolymer or a copolymer comprising alternating units derived from (a) maleic anhydride and (b) an olefin, aromatic compound having a carbon-carbon double bond conjugated to an aromatic ring, vinyl ester or vinyl ether, and optionally acidifying and dialysing the resultant alkali metal salt of a polymeric sulphonic acid to form the corresponding acid. The products may be sodium or potassium salts of polymeric sulphonic acids of formula where n is more than 10, R is an alkylene or -CH 2 -CHY- group, where Y is an aryl, acyloxy or alkoxy group, and X is a sulpho-substituted aliphatic, cycloaliphatic, araliphatic or aromatic group.
Patent GB-711516-A (GB)
Title: Improvements in or relating to vacuum supports for pressure safety devices of the frangible diaphragm type
Inventor: PHILIP THOMAS BRUCE
IPC: F16K17/16
Filed: 1952-02-01
Abstract: 711,516. Pressure-relieving devices for fluids. DISTILLERS CO., Ltd. Jan. 7, 1953 [Feb. 1, 1952], No. 2674/52. Class 135 A domed, frangible diaphragm 1 for relieving excessive pressure in a space 5 has a correspondingly domed member 2 for supporting the diaphragm against vacuum in the space 5, the support having perforations so disposed as tc form lines of potential rupture along which it will burst at a pressure less than that at which the diaphragm is designed to fail. As shown the lines of potential rupture are formed by diametrically disposed perforations 12, Fig. 5. whilst additional, peripheral perforations 13 or grooves &c. enable the support when ruptured to fold back under the influence of escaping fluid tc provide a free passage. An alternative form has only two instead of three diametrical lines of perforations, whilst in a further embodiment the line of potential rupture is defined by circumferentially placed slits extending most of the way round the support. The diaphragm and support, which may be attached to each other, may both be situated on the same side of a clamping ring 3, as shown, or on opposite sides, in which case the support is stepped to bring its domed part into contact with the diaphragm.
Patent GB-487960-A (GB)
Title: Improvements in and relating to universal couplings for shafts
IPC: F16D3/68
Filed: 1937-01-30
Abstract: 487,960. Universal joints. GUY & MURTON, Inc. Jan. 30, 1937, No. 2804. Convention date, Jan. 31, 1936. [Class 80 (ii)] Two or more initially compressed, axially arranged rubber bushings 24 are mounted in flanged pockets in a carrier 22, secured to one shaft-member 21, and are internally engaged by studs 28, projecting axially from the other shaft-member 27. At least part of the bushings projects inwardly past the produced outer longitudinal surface 21 of the shaft carrying them. The bushings comprise rubber sleeves 24, bonded to an inner core 26 and an outer sleeve 25, both of flexible material and preferably consisting of several layers. As shown, the outer sleeve is retained in the carrier 22 by a shoulder 22b and by the flanged shaft-member 21 to which the carrier is bolted at 23, whilst the inner core is retained against a shoulder on the stud 28 by the head of a bolt 30, which secures the stud to the shaft-member 27. In a modification the carrier is integral with its shaft member and the studs have integral threaded ends, the outer sleeves and inner cores being retained by spring rings. In a further modification the carrier is divided along a median plane and has retaining shoulders at each end of the core. The carrier halves are bolted together and to their shaft-member, or, in the case of sheet-metal halves, are riveted together and are then bolted to their shaft-member as an assembly.
Patent GB-399071-A (GB)
Title: Improvements in delivery apparatus for shoots
IPC: B65G65/00
Filed: 1933-01-30
Abstract: 399,071. Shoots. WHITE, C. C., 1, Eden Vale, Durham Road, Sunderland. Jan. 30, 1933, No. 2815. [Class 78 (i).] In shoots of the kind provided at the discharge end with a member which is mounted so that it can be moved to act either as a closure device or as an open extension of the shoot, the movable member a is adapted both to slide on and to swing about the transverse shaft e on which it is mounted. The shaft e passes through quadrantal slots c in the sides of the member a. The movement of the member a is controlled by chains g, h.
Patent GB-825432-A (GB)
Title: Cooking apparatus for food products in tins
IPC: A47J27/14
Filed: 1957-01-25
Abstract: 825,432. Preserving food by heating in cans. BEAUVAIS, M. Jan. 25, 1957 [Jan. 30, 1956], No. 2846/57. Class 49. Food, such as sardines, is cooked in cans 12 by conveyance e.g. in a matter of 20 to 40 minutes, in freely suspended hanging trays 15 with grid-like bases 11 in which the cans are held with their open face downwards through at least one cooking oven 1 and a drying oven 2 arranged in horizontal alignment and the lower entry pulleys 8 1  in the cooking oven and the return pulleys 8 1 <SP>11</SP> in the drying oven are located in the same horizontal plane. The hanging trays 15 are hooked on to the shafts coupling the articulated sections of two parallel conveyer chains 6 as they pass between the pulleys 8 2 -8 2 <SP>11</SP> and then travel through a steam oven 1 at 100‹ C. with such a speed that the food is cooked right through before leaving the oven. The trays then pass through a free space A and into the oven 2 for drying of the food by air sent by a fan 4 into a chamber 5 at a temperature of 100‹ to 150‹ C. and a speed of about 6 to 8 metres per second, and finally are unloaded between pulleys 8 5 and 8 2 <SP>1</SP>. Trays 17, 18 collect fatty waste matter and liquid during the cooking and drying of the food.
Patent GB-980772-A (GB)
Title: Improvements relating to tables, stands and the like
Inventor: BRADLEY WILLIAM GEORGE
IPC: A47B3/12
Filed: 1961-01-26
Abstract: 980,772. Ashtrays. IAN HEATH Ltd. Jan. 23, 1962 [Jan. 26, 1961], No. 3014/61. Heading A2M. [Also in Division A4] A table which may be dismantled has an ash-tray 29 removably mounted on a column 36 which fits into a socket 37 screwing into a central boss on the table. A cigarette rest 32 is provided having a screw-threaded stem 31 to screw into the central position 30 of the ash-tray. Specification 958,584 is referred to.
Patent GB-683299-A (GB)
Title: Improvements in or relating to agricultural spreading or distributing machines
IPC: A01C17/00
Filed: 1950-02-06
Abstract: 683,299. Fertilizer distributers. GENTLE, L. April 17, 1951 [Feb. 6, 1950], No. 3018/50. Class 6(i) An agricultural spreading or distributing machine comprises a rotatable platform 30' provided with blades 31 which extend-. outwardly, mounted .below a cylindrical pot 38 provided with a discharge opening and fitted with a shutter 19 provided with a trapezoidal opening and which is adjustable to vary the effective discharge opening of the pot. Four blades 31 are provided and two of the blades are pivoted to the platform 30 so as to be angularly adjustable. The outlet of a hopper 39 is fitted over the pot 38 and material is fed from the hopper to the platform 30 where it is distributed by the blades 31. The platform 30 is driven by belt gearing from a tractor power shaft through a shaft 57. The machine includes a support 55 provided with pins 56 for attachment to hydraulic lifting mechanism on a tractor. The material is agitated by a plate secured to the platform 30 and provided with projections 50. At the centre of the plate there is secured a shaft 51 formed with a crank portion 52 which supports a hub 53 provided with agitator arms 54. The machine may be modified by mounting on road wheels, the platform being rotated by belt gearing from the road wheels. In a further embodiment eight blades are mounted on a rotatable platform. The machine is provided with land wheels and a towbar and the platform is driven through belt gearing from the land wheels.
Patent GB-432716-A (GB)
Title: Improvements in or relating to letterpress or relief printing
IPC: B41N3/00
Filed: 1934-01-29
Abstract: 432,716. Printing-surfaces. ROBINSON, Ltd., E. S. & A., and FOWERAKER, T. S., 1, Redcliff Street, Bristol. Jan. 29, 1934, No. 3025. [Class 100 (ii)] To enable a relief or letterpress printing- surface to retain more ink, the surface is subdivided by etching, before being engraved in relief, into a large number of small intaglio cells or hollows of substantially even and uniform depth and size, which serve as ink cells, so that when the ink is transferred to the paper it spreads by capillary attraction, whereby the individual spots of ink become united into a continuous surface. The printing-plate may be of copper or zinc and the hollows are produced by any known etching process employing a photogravure screen, the depth of the etching being arranged according to the amount of ink to be transferred. The surface, so prepared, may be used as a mould for making lead or rubber stereos. According to the Provisional Specification, the etching may take place after the design has been formed, and the printing- plate may be of rubber.
Patent GB-102770-A (GB)
Title: Improvements in or relating to Cutting Mechanism for Cigarette Machines.
Inventor: WADE HAROLD
IPC: A24C5/28
Filed: 1916-03-01
Abstract: 102,770. Wade, H., (Comas Cigarette Machine Co.). March 1, 1916. Cigarette-making machines. - The shaft 71 of a rotating cutter 72 for a continuous-rod cigarette machine is reciprocated longitudinally in bearings 68, 69 of a frame 66, which is also given a reciprocatory movement by crankpins 62, 63 of two rotating shafts 46, 47. The cutter shaft 71 is driven from the main shaft 2 through belts 73, 79, and is journaled in a sleeve 70, which is reciprocated in the bearings 68, 69 by a clamped member 84 joined by a connecting-rod 83 with a crank-pin 82 on a rotating shaft 48. The cutter 72 cooperates with a guide 90, through which passes the continuously-formed cigarette rod. During the cutting operation. both the guide 90 and the cutter 72 are moved at the same speed and in the same direction as the cigarette rod. To effect this, the supporting-bracket 94 for the guide 90 is pivoted on a rod 96, which is reciprocated from the sleeve 70 by clamping-members 102, 104, allowing vertical movement of the frame 66. To prevent injury to the cutter, the bracket 94 is constructed so as to " give " under undue strain; this construction comprises an arm 110, Fig 6, fixed to the bracket and an arm 114 pivoted thereto, the arms being con nected by a spring 115 and gripping a stationary rod 112. The shafts 46, 47 which produce the reciprocating move ment of the frame 66 are mountec eccentrically with respect to shafts 40, 42 geared by spur-wheels 43, 44 with a common spur-wheel 16 driver from the main shaft 2. The shafts 46 47 are connected by crank-pins anc pivoted links 51, 54 with the shafts 40 42, causing the shafts 46, 47 to have an accelerated movement at one part o their rotation and a slower movemen at another part of their rotation; by this means, the rotating cutter 72 and frame 66 are given a quick downward movement at the time when the cigar ette rod is being cut and while the knife is receding from the cut rod, a slower movement being imparted during the rest of the upward and downward movement of the cutter. The shaft 48 is arranged eccentrically with respect to the driving-shaft 41 and is connected thereto by a link 58 in such a manne that the sleeve 70 and cutter shaft 7 are given an accelerated movement when they are moving in a direction opposite to that of the cigarette rod, and a retarded movement while they are moving with the cigarette rod and the rod is being cut. The main shaft 2 drives the wheel 16 through intermediate worm and spur gearing, one of the gear-wheels being supported in an adjustable arm. The table 18 which carries the cutter mechanism is adjustable vertically and has a downwardly-extending standard with a screw-threaded aperture, within which fits an adjusting-screw 22 operated by worm gearing from an adjusting bolt-head 28.
Patent GB-549107-A (GB)
Title: Spindle drive control for machine tools
IPC: B23B39/02
Filed: 1941-03-10
Abstract: 549,107. Boring-machines. JOHNSON, G. W., (Sellers & Co., Inc., W.). March 10, 1941, No. 3219. [Class 83 (iii)] A boring mill or other machine tool has a motor driving a spindle through change speed gearing including shiftable gear units operated by a cam member which controls a motor switch so as to reduce the motor speed during the shifting of one or more of said units. A horizontal boring mill 10 has a head 11 fitted with a gear box 12 driven from a motor 13 and arranged to drive a main spindle 15 connected by gears 18, 25 to an auxiliary spindle 16. The gear 18 is driven by a gear train including sliding members 21, 22 controlled by a cam 26, Fig. 3, operated from a handle 14 through shaft 29 and bevel gearing 30. The handle positions M1 ... M4 correspond to various speeds for the main spindle and positions A1 ... A4 corresponding to speeds of the auxiliary spindle. The shaft 29 carries a cam 33 having a rise for each position of the handle, the cam coacting with a roller 37 on a switchoperating lever 38 to close a switch 31 when the roller is on a rise of the cam during a change of speed. This opens a normally closed switch 40 and interrupts current supply to the motor during the gear change. Another cam 34 on the shaft 29 actuates a switch 32, Fig. 7, controlling a reversing switch 42 so that when the control handle is in an " auxiliary " spindle position the motor runs in the opposite direction from that when the main spindle is being driven so that both spindles are always driven in the same operative direction. In a modification instead of switching off the motor during the speed changes, the motor is slowed down by introducing a resistance into its circuit.
Patent GB-190052-A (GB)
Title: Compression reducing valve for steam engine cylinders
IPC: F01B31/14
Filed: 1922-02-03
Abstract: 190,052. Beames, H. P. M. Feb. 3, 1922. Cylinders, relieving.-The two heads of a trickported piston valve are connected by a tube B upon which is mounted a relief valve A.
Patent GB-451226-A (GB)
Title: Improvements in or relating to electric circuits embodying an electric motor and an electric lamp
IPC: H02K23/64
Filed: 1935-01-31
Abstract: 451,226. Supply systems for consuming devices. HOOVER, Ltd., Perivale, Greenford, Middlesex.-(Hoover Co. ; North Canton, Ohio, U.S.A.) Jan. 31, 1935, No. 3163. [Class 38 (iv)] In a system, as applied for example to a vacuum cleaner, in which an electromotor and a lamp are supplied from the same source, the lamp is connected in series with one or more field windings of the motor and in parallel with a circuit which includes the armature, the arrangement being such that the voltage across the lamp is substantially constant for D.C. current of one voltage or for A.C. supplies of certain other voltages and frequencies. In the system shown, the lamp J with its switch K are in series with one series winding G of the motor and in parallel with the armature F and other series winding H. Current is supplied through the three point plug D, E from leads A, B including a two speed switch C by which part of the field H is cut out from the motor circuit but inserted in the lamp circuit so that the autotransformers effect compensates for the drop of voltage in the lamp circuit. In modification the lamp is connected to a tapping on the winding G and a resistance is included in its circuit.
Patent GB-1087162-A (GB)
Title: A process for improving the stability of polyolefines
IPC: C08J3/00
Filed: 1965-01-25
Abstract: A process for improving the stability of polyolefins comprises dispersing purified polyolefine powder in an alcohol/water mixture containing 0.1 to 1% of an alkali metal, an alkaline earth metal or ammonium bisulphite, heating to between 20 DEG  C. and the boiling point, separating and then washing the polyolefin with the alcohol/water mixture.
Patent GB-916999-A (GB)
Title: The lubrication of equipment which is exposed to ionising radiation
Filed: 1960-01-29
Abstract: Radiation-resistant lubricating oils are obtained by the condensation of an alkylbenzene containing 1-5 C1-C5 alkyl groups with an alkylene dihalide containing 1-10 carbon atoms in a mol. ratio to alkylbenzene of 0,5-1:1.  The product may be fractionated and fractions reblended to obtain a product of viscosity 5-500 centistokes at 140 DEG F. Conventional additives, e.g. antioxidants, may be added and greases are obtained by thickening with sodium terephthalamate, finely dispersed silica, clay or an aryl substituted urea.ALSO:Lubricants are obtained by condensing an alkyl benzene containing 1-5 alkyl groups each having 1-5 carbon atoms with an alkylene dihalide containing 1-10 carbon atoms in a molar ratio to alkyl benzene of 0.5-1:1.  Toluene and xylene are the preferred aromatic compounds and ethylene dichloride and dibromide the preferred dihalides.  Suitable catalysts are aluminium chloride, zinc chloride and boron fluoride.
Patent GB-635805-A (GB)
Title: An improved tacheometric staff
IPC: G01C3/30
Filed: 1948-02-04
Abstract: 635,805. Surveying - instruments. COOKE, TROUGHTON, & SIMMS, Ltd., TAYLOR, E. W., and HOGG, F. B. R. Feb. 4, 1948, No. 3307. [Class 97 (ii)] In order that a tacheometric staff may be set normal to the line of sight of the observing instrument, the mounting for the staff is provided with means for orientating the staff and with sighting means having a line of sight normal to the face of the staff when secured to the orientating means for sighting on to the objective of the observing instrument. Preferably the staff is detachably secured to the mounting in positions which are normal to each other. The mounting comprises an L-shaped bracket 3, Fig. 3, provided with a vertical spigot 6 in its lower portion by means of which it may be secured to a tripod and around which the mounting and staff may be rotated in azimuth by a worm drive 16, 17 operated by knobs 16<SP>1</SP>, Fig. 4, and having an upstanding portion provided with bearings 2, 21 for a horizontal spindle 9 which may be rotated about its axis by a worm 14 and sector 12 operated by knobs 14<SP>1</SP> and housed in the upstanding portion. One end of the spindle 9 is provided with a head 23 having a wedge-shaped protuberance 23b on its outer vertical face adapted to engage a similar shaped block 28 on the staff grip 30 when the staff 1 is to be mounted in a horizontal position and a second wedge-shaped protuberance 23a on its upper horizontal face to engage the block 28 of the staff when mounted in a vertical position. In either position the staff is clamped to the head by means of a spring-urged clamp 24 operated by knob 25. A counterweight 22 is adjustably secured to the other end of the spindle 9. The sighting means by which the staff is positioned normal to the observing line of sight comprises a telescope 39 mounted on the side of the head 23 normal to the two protuberances 23a, 23b and adapted to sight the objective of the observing instrument through apertures 39a in the opposite face of the cube and 1a adjacent the zero of the scale in the end of the staff. The mounting may be levelled by a bubble level 50. The staff, Fig. 7, has a longitudinal V-shaped groove 37 to receive the scale 38 and this groove is widened at the bracket end to take the vernier 38<SP>1</SP> which together with the scale 38 butts up against the adjacent end protector plate 35, all being secured to the clamping bracket 29 on which is secured the block 28. The scales are preferably made of materials with low temperature coefficients of expansion.