baber/WOPTO huggingface dataset:
Patent GB-1148966-A (GB)
Title: Liquid olefins of high molecular weight obtained by polymerisation of propylene
IPC: C07C15/00
Filed: 1967-07-28
Abstract: 1,148,966. Oligomerizing propylene ; alkylation. ESSO RESEARCH & ENG. CO. 28 July, 1967 [4 Aug., 1966], No. 34853/67. Heading CSE.  High molecular weight oligomers (e.g. averaging C 24  or higher) are prepared by contacting propylene containing 0À04-0À07 weight per cent water (relative to the propylene) with anhydrous BF 3  catalyst under conditions of temperature and pressure such that the propylene and catalyst are both liquid and are miscible with the oligomer formed, the weight ratio of water to BF 3  being not more than 0À14. The ratio BF 3 : propylene may be 0À5-0À8  weight per cent. The oligomers so prepared may be used to alkylate benzene, toluene or o-xylene in the presence of a Friedel-Crafts catalyst, e.g. AlCl 3 .
Patent GB-492517-A (GB)
Title: Improvements in and relating to springs comprising rubber and metal parts
IPC: F16F1/38
Filed: 1936-12-21
Abstract: 492,517. Resilient mountings. GOLDSCHMIDT, M. Dec. 21, 1936, Nos. 35022 and 35023. Convention dates, Jan. 23 and Feb. 29. [Class 108 (iii)] A spring for supporting, for example, the bogie pivot of rail carriages comprises two or more concentric metal cylinders between and to which rubber cylinders 6 are vulcanized or otherwise adhesively secured, the arrangement being such that with increasing load the metal cylinders successively or in groups abut the lower and upper surfaces respectively of load-transmitting or receiving plates 2, 4, between which the spring is mounted, one of the plates being attached to or bearing against one end of at least the innermost metal cylinder; the other end of which is free, and the other plate being attached to or bearing against the opposite end of the other or at least one of the other metal cylinders. In a modification, the metal cylinders are replaced by a conical spiral spring between the turns of which the rubber is vulcanized, for example, while the spring is subjected to an initial compression corresponding to the compression under normal load, so that when the spring is subjected to normal load the rubber is not stressed. As shown in Fig. 1, the plate 2 is carried by a pin 1 connected to the supported member and engaging the innermost of the metal cylinders 5, the noise of impact of which with the plates' 2, 4 is reduced by the provision of rubber layers 7, 8 on the operative faces of the plates. The rubber cylinders may be of different hardness. In another construction, in order to increase the radial resiliency of the spring, the intermediate metal cylinders are omitted. Fig. 3 shows a further construction comprising two groups of metal cylinders 5, 9 so connected by rubber cylinders 6 that shocks are absorbed by combined shear and compression of the rubber. The cylinders 5 are fixed to the plate 2 while the cylinders 9 rest on the plate 4. Air spaces 10 increase the resistance of the spring. In a modification each of the groups of cylinders 5, 9 is connected to one of the plates and the rubber functions in shear and tension. In another construction two springs similar to that shown in Fig. 1 are arranged end-to-end, one of the springs having rubber of different hardness to that of the other spring. Also in this case the springs may have different numbers of cylinders, or the intermediate cylinders may be omitted, and, if necessary, the cylinders may be of elliptical cross-section.
Patent GB-191283-A (GB)
Title: Improvements relating to the liquid fuel supply arrangements of internal combustion engines
IPC: F02M37/02
Filed: 1921-12-31
Abstract: 191,283. Higginson, J. Dec. 31, 1921. Vacuum apparatus.- In vacuum fuel - feed apparatus for internalcombustion engines, the suction pipe connecting the vacuum chamber b to the induction pipe of the engine is considerably longer than usual, such as 4 to 8 feet, and is provided at the end near the chamber b with a disc lift valve, similar to that described in Specification 104,256. Part of the pipe a may be coiled in the space between the inner and outer chambers.
Patent GB-1476692-A (GB)
Title: Fire retardant polyamides
IPC: C08G69/42
Filed: 1974-08-09
Abstract: 1476692 Fire-retardant polyamides TEIJIN Ltd 9 Aug 1974 [10Aug1973 27 Aug 1973 18 July 1974] 35240/74 Heading C3R A fire-retardant transparent polyamide comprises units derived from:- (a) naphthalene -2,7- and/or -2,6-dicarboxylic acid; (b) a halogen-substituted carboxylic acid; (c) a diamine, and optionally (d) a dicarboxylic acid other than (a) and/or an omega-amino-carboxylic acid, the amount of (a) being at least 40 mol per cent of (a) + (b) + (d) and the amount of (b) being sufficient to provide at least 0À13 wt. per cent halogen in the polymer. The polymer may be formed by melt, solution, interfacial, prepolymer or solid phase techniques. Extensive lists of possible monomers (b), (c) and (d) are provided; in the 33 specific examples these used more frequently are (b) bromobenzoic acid, (c) hexamethylene diamine and (d) isophthalic acid. Conventional additives may be incorporated e.g. TiO 2 , heat and light stabilisers, antioxidants, optical brighteners, pigments and antistatic and flame-proofing agents; in specific Example phosphorous acid is present as stabilizer.
Patent GB-499609-A (GB)
Title: Improvements in and connected with laundry power presses
IPC: D06F71/10
Filed: 1937-12-21
Abstract: 499,609. Ironing -presses. GEORGE, H., and BROWN & GREEN, Ltd. Dec. 21, 1937, No. 35307. [Class 138 (ii)] Means for automatically swinging the frame 6, Fig. 1, carrying a pair of bucks 9, one of which registers with a press head 11 while the other is being unloaded and reloaded, on release of the pressure between the head and the buck contacting therewith so that the two bucks change places, comprise a pivoted arm 53, Fig. 4, actuated by a spring 55 which is stressed during the rise of the buck and held by a pawl during the pressing operation and which is released on the descent of the buck by a predetermined amount so that the arm is swung forward by the spring with sufficient force to contact with one of a pair of rods 56, Fig. 1, depending from the rotary frame adjacent the bucks and to rotate the frame through 180‹. The buck is raised into pressing engagement with the head by a ram 3a, fluid pressure being admitted to the cylinder 3 by a valve 21 constructed as described in Specification 495,660, [Group XXIX], and actuated automatically by the arrival of the rotary frame in the position wherein a buck registers with the head. The cylinder is exhausted by depressing a pedal 43 to actuate the valve 21 in the reverse direction. An arm 48, integral with the head of the ram, is linked to a lever 63, Fig. 4, to the other end of which the spring 55 is anchored, the other end of the spring being anchored to a fixed point. The lever is also connected to the arm 53 which is provided with a recessed member '50 engaged and held by a pawl 49 when the ram is at the top of its stroke. As the ram starts to descend, on evacuation of the cylinder 3, the slot 58 in the link 57 travels along the pivot member 59 until an adjustable striking member 47 carried by the arm 48 engages and releases the pawl, whereupon the spring 55 forces the lever clockwise and swings the arm 53, the pivot 59 travelling to the bottom of the slot 58 ready for the next up movement. Depression of the pedal 43 also withdraws a locking bolt 17, Fig. 1, from a recess 16 in the rotary frame and a spring-pressed plunger 18 moves forwardly over the upper end of the bolt to hold it retracted until a cam 15, adjacent the other recess 16 diametrically opposite the first, contacts therewith and forces it back, thereby allowing the bolt 17 to be raised by its spring 17a to engage the other recess to lock the rotary frame and to actuate the valve 21 through the linkage 46, 44, 31 to readmit fluid pressure to the ram cylinder. A single depression of the pedal 43 thus initiates the descent of a buck, and the swinging of the rotary frame and the raising of the other buck follow automatically therefrom. Means are provided to cushion the movement of the rotary frame towards the ends of its semicircular movements.
Patent GB-1327314-A (GB)
Title: Field effect transistor single phase clock signal generator
IPC: G11C11/4076
Filed: 1971-07-27
Abstract: 1327314 F.E.T. pulse circuits NORTH AMERICAN ROCKWELL CORP 27 July 1971 [27 Aug 1970] 35309/71 Heading H3T A single width clock pulse # 2  is produced from another single width clock pulse # 1  and double-width pulse # 1+2 , by an arrangement including F.E.T.'s 5, 12, 15, and 19 and a capacitor 6 connected substantially as shown, and a further FET 25 which precharges C6, to overcome FET 5 threshold when it subsequently conducts. FET 12 is normally held on (# 1 , # 3 , # 4  time), to earth the output, by having its gate held negative, either by - V through FET 15, or by # 3+4  through FET 15 followed by # 1  through FET 19. Ih # 2  time however, FET 19 conducts the potential at 20 (i.e. Ov in # 2  time) to FET 12 gate to turn it off. C6 has been negatively charged by FET 25 from V or # 1  while FET 12 was on, so that as FET 12 goes #H the negative level at 10 is fed back by C6 to the gate and the output 2 goes to -V with no threshold drop. FET 30 holds FET 5 off in # 3+4  time to reduce dissipation, or alternatively the voltage at 10 could be supplied by the # 1+2  signal.
Patent GB-817208-A (GB)
Title: Improvements in or relating to stationery feeding mechanisms for tabulating machines
Inventor: MURRAY SAMUEL MAHOOD
Filed: 1953-12-18
Abstract: 817,208. Typewriters &c. FANFOLD Ltd. July 19, 1955 [Dec. 18, 1953], No. 35361/53. Class 100(4) Platen and feed-roller rotation. A stationary pin-feeding mechanism for a tabulating machine of the kind in which a special feed is provided for moving the stationery from one imprinting position to another, comprises a rigid rotary member 1 which is coupled to the drive of the feeding mechanism and carries a set of control elements 11 e.g. studs, depressions, metallic strips, or magnetic elements, spaced around its axis of rotation at intervals corresponding to the timing of the special feed. The control elements close electrical switches mounted on a plate which may be rotatively adjusted relative to the rotary member 1. If required, more than one row of control elements may be provided, one row being used to enable the feeding mechanism to be adjusted to a zero position after the stationery has been brought to its zero position while a clutch 10 is disengaged. Gears 3, 3<1>, 3<11> are provided so that different length forms may be used.
Patent GB-418880-A (GB)
Title: Improvements in or relating to hydraulic shock-absorbers
IPC: F16F9/22
Filed: 1933-12-16
Abstract: 418,880. Hydraulic shock-absorbers. BOSCH AKT.-GES., R., 4, Militõrstrasse, Stuttgart, Germany. Dec. 16, 1933, No. 35451. Convention date, Dec. 24, 1932. [Class 108 (iii).] In an hydraulic shock-absorber the liquid passes from one chamber to another in one direction through a valve-controlled port formed in a movable piston &o. or other element of the shock-absorber and controlled by a non-return valve of relatively large cross-sectional area which at one side is directly under the full pressure in the fluidpressure chamber and which has a certain degree of lost motion before coming into effective operation. As shown the pressure-chamber and the reservoir-chamber n communicate through an aperture k in the piston d which is covered by the apertured end i of a cylindrical member p containing a plunger r. On initial depression of the piston against the action of a spring e, by a cam g connected through lever mechanism with a vehicle axle, the plunger r is forced by the liquid to the other end of the member p to close the aperture o so that the piston d has an initial unrestrained movement corresponding to the travel of the plunger r. On further movement of the piston the cushioning commences and is controlled by a pressurevalve or the like (not shown). On the return movement of the piston by the spring e the plunger r is moved to close the open end of the member p and oil flows from the reservoir to the opposite side of the piston d through the aperture o and an opening q in the member p. A sheet-metal cap c closes the lower end of the shock-absorber casing a. The invention may be applied to shock-absorbers of the oscillating- vane type. The member p and plunger r may be fitted other than in or on the piston, e.g. in the wall of the shock-absorber cylinder b.
Patent GB-843897-A (GB)
Title: Collapsible bed rail
IPC: A47C21/08
Filed: 1958-11-06
Abstract: 843,897. Bedsteads. CAL-DAK CO. Nov. 6, 1958, No. 35716/58. Class 52(2) A collapsible bed rail 18 for preventing an occupant rolling out of bed has a frame member 22 with mounting means 24, 25 on which are rotatably mounted legs 26, 28 to fit between the mattress 12 and the boxed springs 14 of the bed 10, the legs which have rubber caps 34, 36 being rotatable to lie in the same plane as frame 22. Stop means in the pivots limit the rotation to 90 degrees.
Patent GB-799516-A (GB)
Title: Electric semi-conducting engobe coating
IPC: H01T13/52
Filed: 1955-12-13
Abstract: 799,516. Vitreous coatings. CHAMPION SPARK PLUG CO. Dec. 13, 1955 [Dec. 20, 1954], No. 35722/55. Class 56. [Also in Group XXVII] Relates to the production of an electrically semi-conducting coating on the surface of a ceramic insulator and is described with special reference to high energy spark plugs and jet engine igniters as shown in the Figure wherein the coating 18 on the insulator 15 provides an electrical path between the nose 19 of the centre electrode 17 and a ground electrode 20 on the shell 12. The coating is formed by applying a slip containing from 2 to 50 per cent by weight of a solid oxide material vitrifiable at between 2400‹F. and 3000‹F. and from 98 to about 50 per cent of an iron oxide, heating the assembly to at least 2400‹F. and rapidly cooling it. The vitrifiable material is preferably wholly or mainly aluminium silicate (kaolin or feldspar) but in some examples it is TiOz either wholly or mainly and in some examples the silicate constituent is mixed with a glass comprising (percentages by weight) SiO 2  40À93 ; PbO 35À19; Al 2 O 3  5À18; B 2 O 3  14À63 and small amounts of NazO, KzO, Li 2 O, TiO 2 , Fe 2 O 3 , CaO and MgO. The surface of the insulator may first be glazed by applying and firing a glaze slip such as one containing feldspar, silica, whiting, white lead, an enamel frit, and small amounts of kaolin, zinc oxide and bentonite. The enamel in the glaze slip may comprise (percentages by weight) SiO 2  46À3; B 2 O 3  27; PbO 17À5; CaO 4À17; Al 2 O 3  1À88; K 2 O 1À73 and NazO 1À36.
Patent GB-1529137-A (GB)
Title: Rebonded fusion-cast azs refractory grain
IPC: C04B35/18
Filed: 1977-08-26
Abstract: 1529137 Al 2 O 3 -ZrO 2 -SiO 2  refractories CORNING GLASS WORKS 26 Aug 1977 [1 Sept 1976] 35923/77 Heading C1J A refractory composition consists of: (A) from 25-60 weight per cent of fusion-cast AZS (alumina-zirconia-silica) refractory coarse grain being at least 89 weight per cent - 6 + 20 Tyler mesh; (B) from 0-38 weight per cent of fusion-cast AZS refractory medium grain being at least 73 weight per cent -10+35 Tyler mesh; (C) from 30-50 weight per cent of at least one component selected from:-(1) from 0-50 weight per cent of the refractory composition of fusion-cast AZS refractory fine grain being at least 60 weight per cent - 35 + 325 Tyler mesh; and (2) from 0-30 weight per cent of the refractory composition of at least one of:-(a) alumina being at least 90 weight per cent - 325 Tyler mesh, at least 98À5 weight per cent Al 2 O 3  and not more than 0À5 weight per cent Na 2 O; (b) - 325 Tyler mesh chromic oxide being at least 95 weight per cent Cr 2 O 3 ; and (c) fusion-cast AZS refractory ultrafine grain being at least 96 weight per cent -100 Tyler mesh and at least 20 weight per cent -325 Tyler mesh, the fusion-cast AZS refractory having (i) a three phase microstructure of interlocking crystals of corundum phase and baddleleyite phase with intercrystalline glassy phase therebetween, the glassy phase being from 15-30 volume per cent of the AZS refractory; and (ii) an oxide analysis consisting of 35-60 weight per cent Al 2 0 3  + Cr 2 O 3  with Cr 2 O 3  # 60 weight per cent of Al 2 0 3  plus Cr 2 O 3 , from 25-50 weight per cent ZrO 2 , from 10-18 weight per cent SiO 2 , from 0À8-1À8 weight per cent Na 2 O + K 2 0 and up to 0À7  weight per cent other ingredients.
Patent GB-1147569-A (GB)
Title: Improved photographic, gelatin-containing layers
Inventor: KEBERLE WOLFGANG
IPC: C08G18/38
Filed: 1967-08-04
Abstract: 1,147,569. Anionic polyurethanes. AGFAGEVAERT A.G. 4 Aug., 1967 [6 Aug., 1966], No. 35945/67. Addition to 1,147,045. Heading C3R. [Also in Division G2] Anionic polyurethanes are produced by reacting a polyester of adipic acid and neopentylglycol with 1,6-hexane-diisocyanate and sodium- γ-aminopropane-phosphonate monomethyl ester using the method described in Specification 1,147,045. The phosphonate may be replaced by other compound having at least one active hydrogen atom and at least one phosphonic acid, phosphoric acid ester or phosphoric acid amide group.
Patent GB-414066-A (GB)
Title: Improvements in tongs for blacksmiths, engineers and like purposes
IPC: B25B7/10
Filed: 1932-12-20
Abstract: 414,066. Blacksmiths' tongs. ROSS, J. E., 172, Cornbrook Street, Brook's Bar, Manchester. Dec. 20, 1932, No. 36068. [Class 61 (ii).] Tongs for blacksmiths', engineers', and like purposes have crossed arms B, C, the former being made from two pieces spaced apart by rivets F and forming a channel-like jaw which co-operates with a projecting part D on the single-piece arm C to hold securely a cylindrical workpiece. A rivet G forms the pivot for the crossed arms, but this may be moved in the slot E when differently-sized pieces of work have to be gripped. The jaw on the arm C may have a claw H to assist in gripping the work. 414,095. Bottle-washing machines. EYLES, L., 42, Aston Lane, Perry Barr, Birmingham. Nov. 28, 1932, No. 33591. [Class 138 (i).] A machine for washing bottles comprises a watercontaining tank provided with a frame carrying rotary brushes, the frame being pivotally mounted whereby the brushes can be positioned clear of the water in the tank to facilitate placing the bottles in the frame or can be submerged in the water, means being provided for causing rotation of the brushes to clean the bottles in the submerged position. As shown, a frame A has six brushes C for cleaning the internal surfaces of bottles, these brushes being located around a central brush G for cleaning the external surfaces. The brushes are adapted to be rotated through the medium of a crank P and toothed wheels gearing together or connected by chains. Pivots D projecting from both sides of the frame are seated in slots provided in the edges of the tank N. A U- shaped frame J freely mounted on the pivots D is provided with a metal plate E, on which is fixed a house mat or carpet T adapted to support the bottles when in the submerged position.
Patent GB-940791-A (GB)
Title: Improvements in and relating to wall structures
Inventor: NAPIER-FENNING JOHN
IPC: E21D11/38
Filed: 1958-11-10
Abstract: 940,791. Tunnels. ANDERSON CONSTRUCTION CO. Ltd. Nov. 10, 1959 [Nov. 10, 1958], No. 36088/58. Heading E1F. In a tunnel lining having preformed boards or panels supported by a framework, the marginal edge portions of the faces of the boards or panels adjacent the frame carry resilient waterproof sealing material in strip form. The panels 1 or supported by the framework which comprises vertical box channel sections 2 and horizontal members 15. The sealing material strip 10 may be a plastic strip having continuous longitudinal cavities or a "foamed" plastic strip. Clamps 4 slidably connect the sections 2 to intermediate horizontal members 3 which are supported from the tunnel wall by rods 5. Adjacent ends of adjoining panels are clamped to a section 2 by plates 11, 13, the joint being covered by a strip 14. Adjacent edges of adjoining panels are clamped to a member 15 by a plate 16 covered by a strip 19.
Patent GB-394974-A (GB)
Title: Improvements in or relating to the coating of wallpapers
IPC: D21H19/34
Filed: 1931-12-31
Abstract: Washable and greaseproof wallpaper is made by coating paper with a composition comprising a cellulose derivative, a sufficient proportion of a wax or wax-like substance or a metal stearate, for example zinc or aluminium stearate, to give a matt surface and solvents of the kind used in the preparation of cellulose lacquers. The cellulose derivatives may be esters such as cellulose nitrate or acetate, or ethers such as ethyl or benzyl cellulose.  The waxes or wax-like materials include carnauba, candelilla, montan, beeswax, flax, raphia, cotton seed, gondang, pisang, ocotilla, sugarcane wax, insect (Chinese) wax, psylla, coffee berry, palm, Japan, myrtle, ceresin, ozokerite, paraffin wax, and normally solid chlorinated naphthalenes.  Plasticizers such as dibutyl phthalate, tricresyl phosphate, castor oil, and b -ethoxyethyl stearate, and modified natural resins, for example resin to which a small quantity of a phenol-formaldehyde resin is added or synthetic resins such as that made from phthalic anhydride, diethylene glycol, glycerine and coconut oil may be added to the coating compositions.  Specification 345,184 is referred to.
Patent GB-488832-A (GB)
Title: Mechanism for controlling the pressure medium of power-operated speed-change mechanism
Filed: 1937-12-30
Abstract: 488,832. Controlling change speed gearing. MAYBACH-MOTORENBAU GES. Dec. 30, 1937, No. 36150. Convention date, Jan. 18. Addition to 460;215. [Class 80 (ii)] An improvement in or modification'of the pressure-medium control mechanism for servooperated preselective change-speed gearing and main clutch of the parent Specification consists in providing a separate operating pedal or lever 67 independent of the throttle or accelerator pedal for initiating the change to a preselected speed. This pedal, as shown, may be the clutch pedal and actuates a valve 22 in a pressure conduit 1 to supply the pressure fluid to a piston 31 to operate a valve 32 in a conduit 4 supplying pressure fluid to the gearchange mechanism (not shown). The pressure fluid in the conduit 1 also acts on a piston 51 to actuate a valve 52 to supply pressure fluid to a piston 11 from a conduit 53 to actuate the clutch 11' simultaneously with the speedchange operation.
Patent GB-508550-A (GB)
Title: Improvements in or relating to electric insulators of the strain type
IPC: H01B17/12
Filed: 1937-12-31
Abstract: 508,550. Insulators. CHAPMAN, L. A. Dec. 31, 1937, No. 36185. [Glass 36] A strain insulator for connecting and insulating two sections 9, 10 of aerial conductor comprises a cylindrical porcelain or other insulating body 3 having apertures 4, 5 leading from the end faces of the body to its side walls and provided between the ends of the body and the side apertures with grooves or abutments 6, 7. The conductor 9 is attached to the insulator by passing a preformed end loop thereof through the aperture 4, opening the loop and then passing the latter over the opposite end of the insulator so that it is held by the groove or abutment 7. Similarly, the conductor 10 passes through the aperture 5 and a preformed end loop thereof is anchored by the groove or abutment 6. As shown, the insulator has a longitudinal bore 8 which houses a condenser, resistance, inductance or combination of such elements 11, connected between the two sections of the aerial. The bore may be transverse instead of longitudinal. Alternatively, the insulator may consist of two hollow parts held together by the tension of the aerial and housing element or elements 11. The element 11 may consist of a transformer, in which case one of the aerial sections 9, 10 may be replaced by a halyard to provide a construction similar to that described in Specification 444,494, [Group XXXV]. Where a capacity coupling between the sections 9, 10 of the aerial is required, the conductors may be so positioned of the insulator as to provide the desired capacity between them without the use of a separate condenser 11. Specification 476,235 also is referred to.