baber/WOPTO huggingface dataset:
Patent GB-972240-A (GB)
Title: Improvements in internal shoe drum brakes
Inventor: REDMAYNE LEONARD
IPC: F16D65/09
Filed: 1961-07-01
Abstract: 972,240. Internal shoe-drum brakes. GIRLING Ltd. June 28, 1962 [July 1, 1961], No. 23857/61. Heading F2E. In an internal shoe-drum brake at least one shoe is actuated by means of a carrier or lever which is located on one side of the shoe web and which carries a radial strut operating between the carrier or lever and the shoe web.- As shown in Figs. 1 and 2 the shoes 10, 11 are received in notches in the ends of opposed tappets 15 which are in rocking engagement with recesses in opposed pistons 16 in doubleended hydraulic wheel cylinders 17. The shoes are free to move circumferentially through a limited distance and to fulcrum on fixed abutment 18 and adjustable tappets 19 according to the direction of rotation of the drum so that both shoes act as leading shoes in both directions of rotation. The shoes' may also be actuated by levers or carriers 21 located at one side of the shoe webs 14. The levers fulcrum at one end on the adjustable tappets 19 and are actuated at their other ends by opposed tappets 22, Fig. 5, slidably mounted in a housing 23. A wedge 25 actuated by a pull-rod moves in a direction substantially at right-angles to the back plate 12 and through balls 24 moves the tappets 22 apart. A sector-shaped opening 26 in each lever 21 houses a strut 27 of which the inner end is in engagement with the inner end of the opening and the outer end has formed in it a part circular notch engaging a pin 28 fixed in the shoe web at the centre of the length of the shoe. The strut 27 is retained in the opening by a detachable cover-plate 31 secured to the lever 21 and is retained in engagement with the pin 28 by a washer and split-pin. Pull-off springs 35 are connected between fixed pegs 36 and the free end of rods 37 which are mounted to rock in anchorages in the back plate and at an intermediate point in their length have spherical enlargements which engage in clearance openings in the shoe webs. The shoes may be located by means of pegs adjustably mounted in the back plate and engaging the head of pins 28 or by flattened C-springs between the heads of pins fixed in the back plate and passing through openings in the shoe webs and levers 21. In another embodiment the levers 21 are actuated by bell-crank levers which are pivoted thereto and are also pivoted to members moving at right-angles to the back plate. Pull-off springs are connected between anchorage loops on the shoes and fixed pegs and each shoe is located by a bolt adjustably mounted in the back plate and having a head engaging in a slotted guide fixed to the shoe web. In a modification the mechanical actuating means may act directly on the shoes while the hydraulic means acts on the levers 21. In a further modification the mechanical actuator may act directly on one of the shoes and on the other through the lever 21.
Patent GB-513818-A (GB)
Title: Improvements in and relating to the manufacture of compounds of p-tolylmethylcarbinol
IPC: C07C29/00
Filed: 1938-08-12
Abstract: 513,818. Tolymethylcarbinol derivatives. CHEMISCH-PHARMAZEUTISCHE AKT.- GES. BAD HOMBURG, and KOHLSTAEDT, E. Aug. 12, 1938, No. 23865. [Class 2 (iii)] Water-soluble compounds of therapeutic use are prepared by partially esterifying a dicarboxylic acid with p-tolymethylcarbinol and converting the ester-acid into a salt with an appropriate organic or inorganic base. The process may be effected by reacting equinolecular proportions of the carbinol and a dicarboxylic acid anhydride in the presence of an atomic proportion of an alkali metal; the ester-acids may then be liberated by addition of a mineral acid and converted into their water-soluble salts, e.g. alkali, alkaline earth metal and ammonium salts or salts with diethylamine or ethylene diamine. Examples are given in which the anhydrides of camphoric, phthalic, succinic and maleic acids are treated with sodium p-tolymethylcarbinolate in benzene solution and the resulting ester-acids converted into salts as above.
Patent GB-689159-A (GB)
Title: Improvements in or relating to absorption refrigeration systems
IPC: F25B15/06
Filed: 1951-10-12
Abstract: 689,159. Refrigerating. CARRIER ENGINEERING CO., Ltd. Oct. 12, 1951 [Nov. 25, 1950], No. 23868/5. Class 29. In an absorption refrigerating system of the kind described in Specification 639,413, the solution flowing from the absorber to the generator 5 through a pipe 12 is preheated in an exchanger 13 by condensed steam flowing from the generator heating tubes 6 through a pipe 43 which includes a steam trap 44 and a check valve 45.
Patent GB-632985-A (GB)
Title: Improvements in or relating to clutch plates
IPC: F16D13/64
Filed: 1945-09-15
Abstract: 632,985. Resilient coupling. NEWTON, N. B. Sept. 15, 1945, No. 23878. [Class 80 (ii)] The friction unit 16 of a plate clutch, such as described in Specification 443,608, is riveted to inner discs 14 journalled on flange 11 of hub 10. Annular rubber rings 15 are bonded to discs 14 and to outer discs 12 which are riveted to the sides of flange 11. Waisted rivets 21 in slots 22 in discs 14 prevent excessive angular movement. In modifications the discs 14 are omitted and members 16 are journalled on the flange, with or without a separating distance piece.
Patent GB-204707-A (GB)
Title: Improvements in or relating to metal moulds for casting pistons
IPC: B22D15/02
Filed: 1923-09-25
Abstract: 204,707. Holley, E., (Assignee of Meloche, D. H.). Oct. 2, 1922, [Convention date]. Moulds A<2> for casting pistons C are made of metal, divided vertically, and arranged to cast with the heads C<2> down. Cores of baked sand B are arranged concentrically in the moulds and retained by shoulders A<4>. The runner B<2> is formed in the core and has gates B<3>, B<4> leading to the piston bosses C<3>. The core may be extended as shown in broken lines B<6> to increase the head. Mould and core materials.-The core may be coated with magnesium oxide in a binder of gluten and water and the mould with fireclay in a solution of water glass as described in Specification 202,273 and then, if desired, with lamp black as described in Specification 201,913.
Patent GB-688896-A (GB)
Title: Improvements in and relating to luminescent materials
IPC: C09K11/08
Filed: 1947-08-29
Abstract: 688,896. Luminescent materials. PHILIPS ELECTRICAL, Ltd., and ROTHSCHILD, S. June 6, 1950 [Aug. 29, 1947], No. 23947/47. Drawings to Specification. Class 39(i) A luminescent material comprises boron phosphate and an activator, e.g. cerium or thallium prepared, for example, by heating together boric acid and ammonium phosphate at 200‹C, grinding and heating again at 800‹C before adding cerium or thallous nitrate and firing. When cerium is used, the firing is in a neutral or reducing atmosphere. Cerium and thallium give luminescent peaks in the ultra violet at 3350A and 3185Š respectively. The colour varies with other quoted activities; tin gives a bluish-white emission, tin and manganese pinkish-white and lead and manganese a pink emission. The materials are applicable to lamps, cathode-ray tubes, e.g. cascade screens and X-ray apparatus. Specification 512,154 is referred to.
Patent GB-145319-A (GB)
Title: Improvements in furnace fronts
IPC: F23M7/00
Filed: 1919-09-30
Abstract: 145,319. Reid, J. Sept. 30, 1919. Furnace fronts; linings. - The fire-box wall of a furnace front is protected from the heat by means of lining plates 14 with air-holes 15 in their upper parts and with grids 21 filled in with asbestos cement 23 over the parts in actual contact with the fuel. Above the fuel entrance is a segmental top plate with air-holes 2 and an air-opening 4 through its bottom flange. The plates are secured by bolts engaging screwed or recessed bosses on the plates or, as shown in Fig. 11, by cast-in studs 26. Fig. 11 shows a form of lining plate in which the grid bars 24<A> holding the asbestos 25 are cast in one with the plate. Yoke plates 28, 33 with flanged edges 29 and air-openings 32, 34 line the fuel-opening.
Patent GB-1237130-A (GB)
Title: Partitions
Inventor: TEW EDWARD GERRY
IPC: E04B2/76
Filed: 1968-05-20
Abstract: 1,237,130. Partition panels. BLAKDALE PRODUCTS Ltd. 29 Aug., 1968 [20 May, 1968], No. 23970/68. Headings E1B and E1W. A fire-resistant heat-insulation filled panel for a partition 1 comprises, two outer metal sheets 14 spaced by metal panel ends 10 which have apertures 11 such that the total heat conducting path between the outer walls is less than 0.01 % of the area of the panel, and reinforcing fire resistant heat-insulating boards 12, for example of low density asbestos, secured across the panel ends to span the apertures. Apertured sheet metal spacing members may also run along the top and bottom panel edges. Adjacent panels, or panels and wall mounted supports 6, may be connected by clips 16 and 17 mounted. on cover-plates 15, the space between the cover plates being filled with insulation. The apertures may be perforations and panel may be made of two parts interconnected by bridging member of small cross section.
Patent GB-448207-A (GB)
Title: Improvements in or relating to belt conveyors
IPC: B65G21/06
Filed: 1935-08-27
Abstract: 448,207. Endless - belt conveyers. MINING ENGINEERING CO., Ltd., and NYBORG, T. G., Meco Works, Worcester. Aug. 27, 1935, No. 23994. [Class 78 (i)] Each section of the troughed frame-work of a belt conveyer is provided at one end with pins 10 at each side, and at the other end with side plates 4 having tapered slots 5 cut in their upper edges, the sections 1, 2 being joined together by engaging the pins 10 of one section with the slots 5 of another. The plates 4 are extended downwardly to provide supporting feet for the sections, and have inclined slots 12 for receiving idler rollers 13 for the lower run of belting, these slots being closed by the end parts 15 of adjacent sections. The pins 10 are carried between the side walls of the section and off-set parts 8 of plates 7 secured to the side walls. The coupling allows limited pivotal movement of the sections about the pins 10, whilst preserving lateral rigidity.
Patent GB-243856-A (GB)
Title: Improvements in or relating to kaleidoscopic apparatus and the like
IPC: G02B27/08
Filed: 1924-10-10
Abstract: 243,856. Sutton, A. H. Oct. 10, 1924. Kaleidoscopes.-Kaleidoscopic apparatus comprises a casing containing a source of light, one or more transparent or translucent screens carrying a design or the like and rotated by the heat from the lamp,. kaleidoscopic reflectors, and one or more eyepieces or projection systems. As shown, a casing 1 contains a lamp 8, a cylinder 2 of glass, mica, &c., bearing a design and having vanes 10, being mounted for rotation on a needle point 12 carried by a wire hoop 11. A tubular member 14 extends from the casing and contains three or more reflectors 15, set at an angle to one another, and a projection lens 17 adjustable for focusing. The lens 17 may be replaced by an eyepiece and two or more members 14 &c. may be provided. Means for raising and lowering the cylinder 2 and the lamp 8 may be provided, and the cylinder may be formed with openings just below the vanes 10. Two or more cylinders 2, one of which is fixed, may be provided, the speeds and direction of rotation of the moving ones being varied as desired. The device may be fitted with one or more panels of imitation stained glass, as described in Specification 206,631, [Class 93, Ornamenting], the panels being continuously or intermittently illuminated. A second projection lantern may be used to project a groundwork image upon which the kaleidoscopic image is projected.
Patent GB-680721-A (GB)
Title: Pipe couplings
IPC: F16L21/06
Filed: 1949-09-19
Abstract: 680,721. Pipe joints. DRESSER INDUSTRIES, Inc. Sept. 19, 1949 [June 10. 1949], No. 24061/49. Class 99 (i) A joint for large diameter pipes comprises a sleeve 5 bridging the joint and having annular packing rings 6 at each end, the sleeve having a longitudinal slit the opposed faces of which are brought together by bolts 16 connecting the flanges 10, 11, and are sealed by packings 30, 32 in recesses in the flange 11. The packing 30 extends through slots 29 into contact with the annular rings 6 which are compressed by follower rings 7 and a plurality of screws 9. The flange 10 may also have recesses into which the packings 30. 32 extend. Lugs 40 in the sleeve engage shoulders on the pipes. The flanges 10, 11 are strengthened by gussets 19, 20. Specifications 660,246 and 680,760 are referred to.
Patent GB-938334-A (GB)
Title: Cushioning carriage return and tabulation in typewriters and like business machines
Inventor: ISRAELSON EVERT GUSTAVE
IPC: B41J19/04
Filed: 1961-07-04
Abstract: 938,334. Typewriters. SPERRY RAND CORPORATION. July 4, 1961, No. 24061/61. Class 100 (4). A carriage braking mechanism for a typewriter or like machine is provided with an additional check element 20 or 34 which is first engaged by a margin stop 21 or tabulation stop 42, respectively, which retards the movement of the carriage between engagement by the margin or tabulation stop with the check element and a fixed stop 23 or 38. In the case of the mechanism operating from the margin stop 21 this first engages the additional check element or lever 20 which pivots under control of a dashpot 10 through linkage 11-19. When operating from a tabulation stop 42 the additional check element 34 slides along a guide-plate 37 under control of the same dash-pot through linkage 33-25, 13-11. The fixed stop 38 is slotted to receive the element 34.
Patent GB-477182-A (GB)
Title: Improvements in or relating to toilet paper
IPC: A47K10/16
Filed: 1936-09-03
Abstract: 477,182. Toilet paper. WESLEY, H. Sept. 3, 1936, No. 24154. [Class 96] Toilet paper is composed of a sheet of soft and absorbent paper attached by sticking or other means to a sheet of a comparatively hard, non-absorbent paper, their combined thickness being approximately the same as that of a normal toilet paper. In an example, a pure machine glazed sulphite paper is stuck, pressed or fixed by means of a series of adhesive lines or spots or perforated embossed pressings to a pure soft semi-crepe absorbent tissue of substantially the same weight.
Patent GB-1174889-A (GB)
Title: Process for Preparing Dawsonite and for Preparing Alkalized Alumina
IPC: C01F7/04
Filed: 1968-05-21
Abstract: 1,174,889. Inorganic substances. W. R. GRACE & CO. 21 May, 1968 [24 May, 1967], No. 24240/68. Heading B1E. [Also in Division C1] Al 2 O 3  is added to a reaction mixture comprising M AlO 2  (M is alkali metal), which is preformed or formed in situ by reaction of MOM and Al 2 O 3 , and (NH 4 ) 2  CO 3  or CO 2 , preferably in the presence of water, to form dawsonite M Al (CO 3 ) (OH 2 ) having unreacted Al 2 O 3  dispersed throughout: The mixture is dried at at least 250F and then heated to 400-2000F to effect conversion to an alkalised alumina containing at least 70% of Al 2 O 3 ) which may be used as adsorbent for H 2 O, H 2 S, SO 2  and acidic gases.
Patent GB-642870-A (GB)
Title: Device for use in the removal of rail fastening spikes
IPC: E01B29/26
Filed: 1948-09-15
Abstract: 642,870. Spike extractor. ELASTIC RAIL SPIKE CO., Ltd., and SANSON, L. S. Sept. 15, 1948, No. 24255. [Class 61(iii)] Rail fastening spikes of the kind comprising a shank adapted to be driven into a sleeper and a resilient head or gripping arm the free end portion of which is adapted to bear on the rail flange are removed by a prizing tool comprising a lever arm 1 having a foot 2 tapered to form a toe 5 for engagement under the head of the spike and an integral shroud 7b open-ended in the lateral sense and adapted to be above the arched head of the spike. The heel 4 may be serrated or provided with teeth.
Patent GB-226877-A (GB)
Title: Improvements in or relating to self-driven pumping-mechanism
IPC: F03G7/10
Filed: 1923-10-01
Abstract: 226,877. Wall, W. F. Oct. 1, 1923. Drawings to Specification. Self - driving machines. - In a self-driving machine, a pair of pumps deliver water to a pair of elevated receivers which, in turn, deliver the water to a reciprocating series of buckets arranged to drive the pumps. Reference has been directed by the Comptroller to Specification 104,004.
Patent GB-1156093-A (GB)
Title: Improvements in Fans for Moving Working Fluid Through a Duct.
Inventor: ERWIN JOHN RICHARD
IPC: F01D5/02
Filed: 1967-05-25
Abstract: 1,156,093. Turbines; jet propulsion plant; axial-flow fans. GENERAL ELECTRIC CO. May 25, 1967 [Aug.29, 1966], No.24401/67. Headings F1C, F1J and F1T. A fan, e.g. for aircraft propulsion or forming a stage of a gas turbine engine compressor, comprises a shaft 24, an axially extending base 40 and a rim 20 spaced radially outward of the base and between the axially spaced base ends, short chord aerofoils 22 being connected to the rim to form the fan blades, substantially half of which aerofoils are connected to one of the base ends and the remainder to the other end to form a triangular cross-section in a plane containing the axis of rotation 26, the product of the total number of aerofoils and the design rotational speed in revolutions/sec. having a minimum value of approximately 14, 000. The term "short chord" means a chord of approximately 1 inch or less. The fan may carry tip turbine blades 18 on its rim 20 which are driven by gas from a gas generator exhausting from a scroll 36 past guide vanes 34. Alternatively, the fan may be driven by an inner jet propulsion engine connected at 28. The base 40 is supported from the shaft 24 by discs 38 to which the aerofoils 22 forming the fan blades are connected in tension by pins 50 in a configuration similar to a spoked bicycle wheel. A ring 52 may be connected to the aerofoils to reduce vibration. The construction reduces noise since wake interaction is reduced and frequencies below the audible limit of 14, 000 cycles/ sec are eliminated.
Patent GB-466544-A (GB)
Title: Improvements in or relating to watthour meters
IPC: G01R11/40
Filed: 1936-09-08
Abstract: 466,544. Supply meters. WESTING- HOUSE ELECTRIC & MANUFACTURING CO. Sept. 8, 1936, No. 24433. Convention date, Oct. 24, 1935. [Class 37] A polyphase induction meter for assembly in a standard single-phase casing has each shunt and series field winding 8, 10 located on one side of the respective rotor 11, the backplates 4 abutting and leaving a gap between the cores 2. The upper plate 4 carries a counting train 14 and the lower one a brake magnet 15. Light-load adjusting plates 16 are operated by screw-threaded spindles 17 and are shaped to project into the gap formed between the cores 2 thus minimizing phase interferences between the driving systems. The base-plate 21 to which the magnet systems are secured has contact blades 22, 23 for engagement with contact jaws on a single-phase casing. If more than one potential connector 23 is provided, the number of jaws on a standard single-phase casing can be modified.
Patent GB-1306265-A (GB)
IPC: B25D9/26
Filed: 1970-05-20
Abstract: 1306265 Percussive tools NIPPON PNEUMATIC MFG CO Ltd 20 May 1970 [10 Sept 1969 (2) 25 Feb 1970 (2)] 24450/70 Heading B4C A pneumatically operated impact tool, which may be used under water, comprises a cylinder 11, an end cap 12, and a chisel holder 13 held together by a bolt arrangement which comprises a plurality of rods 16 each having at one end an integral or threaded member 18 and at the other end a screw threaded nut 17. The socket member includes a peripheral surface b (Fig. 4) which engages a surface c on the holder so as to prevent rotation of the member. Stopper members 20 include polygonal openings 21 (Fig. 3) for holding a nut 17 against rotation when the nut is fully screwed on to a rod. A collar 22 of resilient material surrounds each nut and a split pin passing through the nut prevents removal of the collar from the nut. A hammer piston 15 is reciprocable in the cylinder to impact a chisel 33. A compressed air distributing valve 51 (not shown in detail) is provided in the cap. With the piston in the position shown in Fig. 2 air will pass via passage 54 to port 55 and the piston will be raised. Initially air above the piston will be exhausted via port 47, and valve body 45, holes 50 and openings 49 of left hand housing 42. Upon further upward movement, the piston passes the port 47 and the air above the piston then passes via passages 56, 52, valve 51, passage 53, and port 48 to move right hand valve body 45 against spring bias. The air thus escapes via holes 50, and openings 49 of right hand housing 42. When passage 56 is closed the air above the piston is compressed and acts on the valve 51 to admit air into the space above the piston so that a working stroke is initiated. A drop in the pressure of the air above the piston, i.e. when port 47 is exposed and air can escape to atmosphere, to a predetermined value will reverse the condition of the valve 51 to again supply air to the space below the piston. If the tool is not to be used under water, the housings 42 and valve bodies 45 are not necessary. Grease can be introduced into a chamber 39 via a nipple 41, and air under pressure passing through bore 36 and passage 38 will force grease via bore 40 into passages 34, 35 so as to lubricate the chisel shank. A lubricant may be introduced into the compressed air stream upstream of the valve 51. A resilient cushioning element 27 is provided. In a modified embodiment (Fig. 8) compressed air can only be supplied to the space below the piston via port 81 when the chisel is in its uppermost position thus engageing ball 77 and through rod 80 holding a ball 72 against spring bias away from its seat 70. When the piston is moving on its working stroke valve body 88 will be displaced by air pressure and the air below the piston will escape via passages 86 and 91. During downward movement of the piston the passage 83 is open to atmosphere via a distributer valve (not shown).
Patent GB-1345311-A (GB)
Title: Manufacture of polythiobisphenols
IPC: C08J3/24
Filed: 1972-05-24
Abstract: 1345311 Polythiobisphenols INVENTA AG FUR FORSCHUNG UND PATENTVERWERTUNG 24 May 1972 [26 May 1971] 24480/72 Heading C2C In a process for forming a polythiobisphenol of one of the general formulµ in which n is 2 or 3 and R 1  to R 4  are the same or different and are each hydrogen, alkyl or halogen, a corresponding phenol, which is unsubstituted in the p-position to the hydroxy group or in at least one of the o-positions to the hydroxy group is treated at a temperature below 30 C. in a solvent and in the absence of hydrogen sulphide and catalysts, with disulphur dichloride, the solvent comprising an acid amide which is a tertiary amide and whose nitrogen carries at least one alkyl group. In examples, N,N-dimethyl formamide and N- methyl pyrrolidone are employed as solvents.