baber/WOPTO huggingface dataset:
Patent GB-561064-A (GB)
Title: Spot lamp
IPC: G03B15/02
Filed: 1942-10-28
Abstract: 561,064. Electric lamp casings. RICHARDSON, E. C. Oct. 28, 1942, No. 15148. [Classes 75 (iii) and 75 (iv)] The casing of an incandescent spot lamp 15 comprises outer and inner groups of longitudinally extending channel members 20, 21, the channels of one group being disposed with their adjacent legs between the legs of the channels of the other group so as to permit adequate ventilation while preventing the escape of light. The channel members may be spot welded at their ends to flexible supporting bands 30, 31; 32, 33 which are then secured to front and rear supporting rings 22, 23 on the casing. The rear end closure 2 of the casing comprises a dished cap 34 spot welded to the ring 23 and formed with ventilating apertures 35 behind a light baffle 36. The ring 23 may be formed with a radially extending annular member 38 to prevent the escape of reflected light. The front ring 23 is fitted with a lens mounting 3. The lamp 15 is supported in front of a reflector 16 on a socket 17 electrically connected with a line switch 18. Rain water caught in channel members 20, 21 passes to spaces 47, 48 between the ends of the members and the rings 22, 23 and drains into a housing 40 at the bottom of the casing and escapes by holes 49, 50. Rain water entering the apertures 35 drains through openings 52, 53 in the flange 26 of the ring 23. The casing is preferably mounted for rotation about horizontal and vertical arcs by means of a yoke 4 having a downwardly extending pivot 6 inserted in a lamp standard or a hand rail 7. The pivot portion may be grooved at 8 to receive a set screw and apertured to receive a cotter key 9.
Patent GB-280607-A (GB)
Title: Improvements relating to printing machines
IPC: B65H7/02
Filed: 1926-06-16
Abstract: 280,607. Evans, A. B. June 16, 1926. Sheet - registering devices; gripper - cylinder feeds; grippers.-A printing-machine with feed mechanism of the kind described in Specification 179,637 is constructed so as to enable two operators to feed tin plates or other sheets alternately to the machine, the sheets being registered by movable pushers against the front stops and being similarly adjusted for side register. The movable pusher also controls the tripping mechanism so as to trip the machine automatically if the sheets are missing or are not registered correctly. The two operators feed the sheets alternately to preliminary rising and falling front stops o on a feed table a, and the sheets are advanced to front stops m by reciprocating registering devices e<1>, and are simultaneously sideregistered by similar side stops d<1> moving respectively in slots b, c in the tables a, the stops being mounted on bars f, g. These are reciprocated by means of an oscillating sector h, Fig. 1, engaging a rack j which oscillates gears d<2>, l, l<1> d<3> engaging the rack j and racks on the bars f, g. The stops e, d are similarly constructed, and one stop d is shown in Fig. 4. It comprises a runner d<1> freely mounted on a spring-pressed plunger d<12> adjustably carried by the body d which is supported on a bracket d<4>. The bracket d<4> is connected by a screw d<8> to a clamp d<7>, and screws d<6> hold the clamp and bracket in position on the bar f. A cover d<19> is provided over the stop, and the plunger d<12> may be held in fixed position by a. screw d<20>, one of the plungers being so held and the other allowed to move against spring-action as it operates against the sheet. The stop is allowed to move under spring action. The sheets are normally fed by grippers on a cylinder t to the impression cylinder z of the machine, but if the cylinders are tripped by the depression of a pedal r<4>, the stops m and the grippers are also tripped and a sheet is not fed. Tripping - arrangements.-If a sheet fails to reach the front stops m the pedal r<4> is operated automatically. It is connected to a spring- controlled three-armed lever r normally maintained by a spring r<3> so that the left end of the lever rests on a stop r<2>. A cam-oscillated lever q operates a depending member p<1> to move it to the right, and if a sheet is not fed correctly the member p<1> is lowered to engage the upper part or the lever r, otherwise the member p<1> fails to engage the lever r. The member p<1> is attached to a bell-crank lever o connected by a rod n<5> to a lever n<2>, n<4> which is moved clockwise by a spring n<1> acting on a rod n if the back stop e<1> fails to engage the edge of a sheet. The stop e<1> has a projection e<2> which engages a projection n<6> on rod n, and normally the backward movement of the stop as it engages the sheet permits the spring n<1> to move the rod to the right to a greater extent than if the stop e<1> failed to engage the sheet. In the latter case the member p<1> causes the tripping-mechanism to be operated.
Patent GB-803383-A (GB)
Title: Improvements in and relating to holders for cosmetic and other substances in stick form
IPC: A45D40/04
Filed: 1956-05-15
Abstract: 803,383. Cosmetic holders. CROWN CORK & SEAL CO. Inc. May 15, 1956 [May 18, 1955], No. 15164/56. Class 18. A holder for cosmetic in stick form of the kind having an axial screwed stem carrying a cup to which the stick is attached, has an external gasket 50 surrounding the stem 34 to exclude air. The cup 56, which may be of rubber, is advanced by rotating a knob 48 attached to the stem. The stem is located by spring fingers 27 integral with the bottom of the body 2, the fingers allowing the stem to be fitted into the body during manufacture. A screw cap 12 is provided. The internal diameter of the body may increase towards the upper end. Reference had been directed by the Comptroller to Specification 736,554.
Patent GB-945138-A (GB)
Title: Improvements in or relating to electrical switch mechanism embodying relatively sliding contacts
Inventor: BISCHOFF WILLI WALTER
IPC: G01F23/36
Filed: 1959-05-04
Abstract: 945,138. Fluid actuation of switches. S. SMITH & SONS (ENGLAND) Ltd. May 4, 1960 [May 4, 1959], No. 15216/59. Heading H2B. [Also in Division G1] In a switch having relatively sliding contacts, one of the contacts comprises a metal layer applied to substantially the whole of one side of an insulating strip or plate, preferably by " printed circuit " methods, and the layer is interrupted by a slit extending completely across the layer from edge to edge, one of parts thus formed being connectible to a circuit, whereas the other part is insulated. The moving contact may be actuated by a condition-responsive device, as shown a liquid-level float 16 carried by a spindle 14 also carrying two contact blades 18, 19. The latter slides on the metal layer on the strip 53 which is carried by a cover member 49. The blade 18 engages a potentiometer 44.
Patent GB-240220-A (GB)
Title: An improved core for use in casting hollow metal bodies
IPC: B22D19/00
Filed: 1924-06-24
Abstract: 240,220. Lightalloys, Ltd., and Mann, E. L. June 24, 1924. Cores of sheet metal, which may be reinforced with a filling of preheated sand, are split longitudinally so as to contract with the casting. The core has one or two lap-joints 2 which may have interlocking ribs 6. The joint may be closed by solder or other material having a melting point slightly below that of the metal cast. If a sand filling is used the joint need only be spot soldered. A cast exhaust manifold'. 7, Fig. 5, has a sheet metal core 8 with a bottom 9, joint 10, and openings 11 for other cores 12.
Patent GB-1335482-A (GB)
Title: Analytical apparatus
IPC: G01N35/00
Filed: 1971-05-17
Abstract: 1335482 Sample cells for optical apparatus INSTRUMENTATION LABORATORY Inc 17 May 1971 [12 June 1970] 15283/71 Heading G2J An optical cuvette assembly is designed for use in automatic photometric apparatus as described in Application No. 15284/71. The assembly is made of glass, polyolefin, polycarbonate or acrylic material and comprises a handle portion 62 and three chambers 60. It tapers inwardly towards its base and is formed with optical surfaces 70, which define optical cells which are of equal path length for all three chambers. A prefered material for the assembly is TPX methylpentare polyolefin having 25 per cent transmission at 3400. The assembly is supplied containing reagent in one or more of the chambers 60 so that it is specific to a particular type of analysis, information about which is secured to the surfaces of handle portion 62. Test and standard samples may be introduced into the chambers by breaking frangible sections 74 in the cover member 48 which has previously been ultrasonically welded to the body. Interlock tabs 76 are provided on the top of handle portion and can be broken off as required to provide coding information to control the incubation period after addition of test sample etc.
Patent GB-361888-A (GB)
Title: Improvements in and relating to processes for the production of esters of aliphatic acids
IPC: C07C51/48
Filed: 1930-05-19
Abstract: 361,888. Esters. COMMERCIAL SOLVENTS CORPORATION, 230, Park Avenue, New York, U.S.A. May 19, 1930, No. 15354. Convention date, May 18, 1929. [Class 2 (iii).] Esters of water-soluble aliphatic acids are produced by extracting an aqueous acid with a waterimmiscible alcohol in the liquid phase, separating the extract, and using it for an esterification charge. In an example, a 5 per cent aqueous acetic acid is extracted with butanol and the extract is esterified. The yield may be increased by dividing the butanol into a number of parts and performing that number of separate extractions, the extracts being then mixed and esterified. The aqueous acid may be that obtained in an esterification process, and the butanol may be crude, i.e. may contain water. The process may be applied to the productions of other esters, such as amyl acetate, hexyl acetate, and butyl butyrate. -
Patent GB-733433-A (GB)
Title: Improvements in and relating to electric heating elements
Inventor: ROWLAND LEONARD
IPC: H05B3/56
Filed: 1952-06-19
Abstract: 733,433. Electrically heated fabrics. HOBOURN AERO COMPONENTS, Ltd. Sept. 18, 1953 [June 19, 1952], No. 15504/52. Addition to 708,542. Class 39 (3). A flexible electric heater according to the parent Specification, i.e. a ribbon or cord 2 made by braiding one or more heating resistance wires 3 with strands of inextensible flexible fibre such as glass fibre so as to expose portions of the wire at the surface of the cord or ribbon and to prevent short-circuiting selfcontact of the wire, has an all-over covering 4 of flexible heat-resisting electrically-insulating material which is stranded and/or fibrous, is air-permeable and is applied to envelop the heater. The sheath 4 is of spun asbestos or fibre glass strands braided around the heater. The sheath cannot easily be removed, but allows expansion of the resistance wire. The braided ribbon or cord may be strands of asbestos with a core 1 comprising one or more threads of spun glass. The element may be used in drying machines or convection heaters. According to the Provisional Specification, the heater is mounted under tension by stretching it between end plates supported on a rod, and one end plate may be outwardly biased by a spring washer interposed between the plate and a collar on the rod.
Patent GB-700206-A (GB)
Title: Improvements relating to reinforced concrete structures
IPC: E04C3/20
Filed: 1951-06-29
Abstract: 700,206. Reinforced concrete beams. LONDON WELDING CO., Ltd., and FOWLER, R. J. Sept. 8, 1952 [June 29, 1951], No. 15516/51. Class 20 (4) Reinforced main structural members e.g. pillars, rafters, purlins &c. are attached one to another by means of attachment portions which are welded to the body of the reinforcement of the pillar &c., before the reinforcement is placed in a mould. A rafter 1 has four longitudinal reinforcing bars 2 held together by a stirrup 3, a pair of studs 4 being welded to the upper two bars 2 at spaced intervals for the attachment of purlins 5. The purlins are attached to the rafter 1 by means of sleeves 9 which are welded to reinforcement bars 6, 7 at each end of the purlins 5 and are adapted to slide over the studs 4. A washer plate 11 is placed over each pair of studs 4 and the assembly is held in position by nuts 10. Fig. 3 shows a connection between a beam 25 and a pillar 20. U-shaped brackets 23 are welded to reinforcement bars 21 in the pillar 20 and tubular sockets 24 are welded within brackets 23 to receive bolts 29 which pass through angle brackets 28 welded to the ends of reinforcement bars 26 in the beam 25. The bolts are secured in position by nuts 30. The angle brackets may be replaced by a single bracket which is welded across the end of the beam, the use of the brackets, as shown, however, permits the use of a mortar filling 31. Fig. 5 shows the footing of a pillar 30 having reinforcing bars 31 to which is welded a plate 32. The pillar is recessed at 33 so that the upper side of the plate is accessible for securing the pillar by a bolt 35 and a nut 34.
Patent GB-688964-A (GB)
Title: Improvements in or relating to girder structures for mines
IPC: E21D11/20
Filed: 1949-06-10
Abstract: 688,964. Mine roof supports. LINSINGEN, M. VON [trading as BOCHUMER EISENHUTE HEINTZMANN & CO.] June 10, 1949 [Oct. 1, 1948], No. 15540/49. Class 20(ii) In a mine roof supporting structure comprising connected overlapping members of identical channel crosssection, the webs 1 decrease in thickness towards the bar 3 so that the webs engage one another resiliently when the members are clamped together to allow spreading movement under roof pressure, and the bases 3 of the members engage one another. Specifications 687,409 and 688,963 are referred to.
Patent GB-903573-A (GB)
Title: Improvements in and relating to self-damping pneumatically operated jacks
IPC: F15B11/076
Filed: 1960-05-03
Abstract: 903,573. Pneumatic single-stroke apparatus. BLACKBURN AIRCRAFT Ltd., and SPRINGHAM, J. March 23, 1961 [May 3, 1960], No. 15570/60. Class 8(2). Damping during the whole of the stroke of a compressed air operated double-acting jack comprising a differential piston K, C, Fig. 1, to the larger face of which compressed air is admitted to a space V 2  through a valve S, Fig. 2, and a port P 2  in the end C of the cylinder E and to the smaller face of which piston air is admitted to a space V 1  through a port P 1 , the bore M of a fixed tube B and a port N therein is effected by oil being forced by the piston portion G from a space V 3  bounded by the cylinder E and the hollow rod H of the piston K, G through a port O 2  non- return restrictor valves R, Q in a duct connecting said port O 2  to a port Oi leading to a space V 4  formed between the closed end J of the hollow rod H and a fixed piston A at the end of tube B; said oil duct being supplied from a pressurized reservoir X. The return stroke of the jack is effected by connecting port P 2  to atmosphere through the valve S.
Patent GB-698768-A (GB)
Title: Improvements in and relating to steel alloys
IPC: C22C38/40
Filed: 1951-07-02
Abstract: Steel alloys having high resistance to wear, abrasion, intergranular corrosion and surface corrosion have the following composition: C up 0.2 per cent, Cr 1.0-6.0 per cent, Al 0.2-2.0 per cent, Ni 0.2-2.0 per cent, Si 0-0.5 per cent, Mn 0-0.6 per cent, Cu 0-0.5 per cent Mo 0-0.6 per cent, one or more of the following elements as killing agents, namely Ti, V, Sr, Nb, Ce up to 0.2 per cent, Fe, and the usual impurities, the balance.  The Specification describes the heat-treatment of a 5mm. thick sheet which is annealed at 750 DEG -780 DEG C to bring it into a condition in which it may be machined and has a good press forming capacity. The properties of hardness and wear-resistance are then restored by heating to 900-950 DEG C and cooling in air.  The steel may often be worked without previous tempering and then tempered at 300-400 DEG C to increase its tensile strength.
Patent GB-544378-A (GB)
Title: Improvements relating to carburetters for internal combustion engines
IPC: F02M1/00
Filed: 1941-10-18
Abstract: 544,378. Surface carburetters. HARTLEY, S., and BOYD, C. K. B. Oct. 18, 1941, No. 15633/40. [Class 7 (iii)] Air admitted to a tank 1 by a pipe 2a bubbles up through fuel in the tank, and the mixture is led away by an outlet 3, the breaking up of the bubbles being assisted by a perforated cone 5, and steel wool &c. 7, some of which is placed above the cone and extends above the fuel level; baffles 8 being also provided. An extraair valve 6 may be fitted to the induction pipe 3a. Air may be forced through the pipe 2, which may be heated.
Patent GB-624176-A (GB)
Title: Improvements in or relating to insecticidal compositions
Filed: 1946-05-23
Abstract: Polychloro-bicyclic terpenes containing 60-70 per cent of chlorine are obtained by chlorinating the corresponding terpene or terpene compound.  According to examples: (1) a solution of camphene in carbon tetrachloride is chlorinated whilst being exposed to ultraviolet radiation from a mercury vapour lamp for periods 24-33 hours, the carbon tetrachloride is removed by distillation, the resulting solid is dissolved in petroleum ether, the solution is washed with a sodium bicarbonate solution, then with water and is dried over sodium sulphate, and finally the petroleum ether is removed by vacuum distillation, the products having chrome contents of 61.9-6.65 per cent; (2) a solution of camphene in carbon tetrachloride is treated as in example (1), except that the chlorination periods are 35-39 hours and external heating to maintain a temperature of 72 DEG  C. is applied after 30 hours, the products having chlorine contents of 67.9-71.3 per cent; (3) a solution of camphene in carbon tetrachloride is treated as in example (1), except that the chlorination period is 70 hours, the reaction mixture being heated by the external application of wet steam for the last 40 hours, the product having a chlorine content of 75.0 per cent; (4) a solution of pinane in carbon tetrachloride is treated as in example (1), except that the chlorination periods are 26-38 hours, products having 63.1-71.0 per cent of chlorine being obtained; (5) a solution of bornyl chloride in carbon tetrachloride is treated as in example (1), except that the chlorination period is 10 hours, a product containing 65.9 per cent of chlorine being obtained; (9) alpha-pirene is saturated with hydrogen chloride at 0 DEG  C. and is then chlorinated in the absence of a solvent and in the presence of ultra-violet illumination for 35 hours, the resulting product containing 68.9 per cent chlorine.  The Specification as open to inspection under Sect. 91 describes also the preparation of chlorinated terpenes containing 40-60 per cent chlorine.  This subject-matter does not appear in the Specification as accepted.ALSO:An insecticidal composition comprises a poly-chloro bicyclic terpene containing from above 60 per cent to approximately 75 per cent of chlorine and a diluent.  Specified chloro terpenes are a polychloro camphene (produced by the chlorination of camphene), a polychloro pinane, a polychloro camphane and a polychloro fenchene. Specified diluents are water, kerosene, inert clay, powdered carbon, kieselguhr bentonite and pyrophyllite.  Other insecticides such as rotenone, pyrethrum, isobornyl, fenchyl, and other thiocyano-acetates, isobornyl-a -thiocyanopropionate, alkyl thiocynates, and thiocyano-ethers, such as b -butoxy-b 1-thiocyanoethyl ether, may be added.  The Specification as open to inspection under Sect. 91 comprises also compositions comprising a polychloro bicyclic terpene containing from about 40 per cent to about 60 per cent of chlorine.  This subjectmatter does not appear in the Specification as accepted.
Patent GB-818503-A (GB)
Title: Quick-adjusting g-cramp
IPC: B25B5/10
Filed: 1956-09-03
Abstract: 818,503. Clamps. BRISTOW, G. G. R. Aug. 13, 1957 [Sept. 3, 1956], No. 15713/56. Class 61. A C-clamp comprises a fixed jaw 7 and a movable jaw 14 carried by a screw threaded spindle 12 said spindle having a buttress thread 13 and being slidable in an elongated bore 11 in the body of the clamp, and a quick release catch having one or more teeth 21 adapted to be engaged with or disengaged from the buttress thread 13 on the spindle. The catch 16 is slidably mounted in a recess 17 in the body of the clamp for movement in a direction at right angles to the axis of the spindle 12 and is retained in the said recess by plates 18 secured to the catch and serving as finger grips for sliding the catch. The catch is urged into engagement with the spindle by a spring 20 and is released from the spindle when quick adjustment of the jaws is required. The jaw 7 may be replaced by a forked jaw for use in lifting valves. The Provisional Specification describes also a clamp having a spring operated catch pivoted on a shaft mounted in the body perpendicular to the plane of the clamp and movable against the action of the spring by a lever.
Patent GB-1183786-A (GB)
Title: Printing Machine.
IPC: B41F17/28
Filed: 1968-04-02
Abstract: 1,183,786. Printing apparatus. VAN DAM MACHINE CORP. 2 April, 1968 [3 April, 1967], No. 15740/68. Heading B6C. As containers C are successively moved from the 12 o'clock position where they are placed on to turret-mounted mandrels 17 to the 9 o'clock position, where they are printed on, their rims r contact arcuate plate 58, pressing it away from drum 12 and keeping a switch associated with plate 58 closed, but if there is no container on a mandrel 17 approaching the 9 o'clock position plate 58 moves as soon as the previous container leaves the 9 o'clock position and mechanism actuated by the opening of the switch removes the complete assembly of turret and mandrels axially so that the empty mandrel is not printed on. Container feed mechanism.-Containers C are stacked between rods 31 and are moved downwards by rotating cylinders 32 as grooves 33 engage the container rims r. The turret revolves stepwise, 45 degrees at a time, presenting the containers in turn to the leading edge of plate 58, to printing drum 12 and to an unloading station at 3 o'clock, where each in turn is removed from its mandrel 17 by jets of air through openings in the end of the mandrel. Printing.-Plate 28 transfers an image to a blanket 24, carried by rotating drum 12 and protruding above its surface. Each container C in turn is presented to the 9 o'clock printing position, where it is contacted by the leading edge of blanket 24 and is caused by blanket 24 to rotate while the image is transferred to its side wall surface. The drum 12 and the turret are skewed so that there is a continuous contact between the blanket 24 and the tapering side wall. Drum 12 may carry four blankets 24. Preventing damage.-Failure of the container feed mechanism is followed by movement of plate 58 as soon as the container occupying the mandrel preceding that to which no container has been supplied clears its trailing edge. A fluid pressure cylinder which has kept the turret adjacent to drum 12 is depressurized when plate 58 moves and its associated switch opens. Springs then move the turret away from drum 12. The fluid pressure cylinder may be an air cylinder, in which case supply of two containers C to one mandrel is followed by movement of the turret against the cylinder and compression of the air in the cylinder, so that the blanket 24 is not damaged. A valve in the air cylinder may then permit air to escape when the pressure of the air in the cylinder reaches a preset value.