baber/WOPTO huggingface dataset:
Patent GB-795661-A (GB)
Title: Improvements in or relating to pistons for internal combustion engines
IPC: F16J1/16
Filed: 1954-05-24
Abstract: 795,661. Pistons. BURNAND. J. May 20, 1955 [May 24, 1954; Feb. 10, 1955], Nos. 15213/54 and 4011/55. Class 122 (1). A piston comprises a head 3, a support 4a abutting the inside of the head and removable from the piston, an upper half gudgeon pin bearing 9 on that side of the support remote from the head and a lower half gudgeon pin bearing located in the piston by retaining- means, such as a ring 14, engaging a part secured to or integral with the head. The upper half bearing 9 is located against rotation in the support by a key 18 and the lower half bearing comprises a pair of bearings 10 having base-plates 12 spigoted into the ring 14 that is threaded into the piston skirt 4 and locked by a pin 19. The plates 12 and bearings 10 provide an aperture 17 for the connecting-rod. The head is provided with L-section piston-rings 20, 21 clamped against a shoulder 22 by a ring 23 locked by pins 24. Similar rings 25, 26 are provided at the bottom of the skirt. The gudgeon pin (not shown) is integral with the connecting-rod and provided with suitable oilways. Alternatively, the connecting rod may be tubular and split at the small end, the two semi-circular halves being turned outwardly to extend in opposite directions normal to the connecting-rod to rest on the lower bearing halves and receive the gudgeon pin. In a modification, Figs. 4 and 5, the support 54 is threaded on and locked by a pin 62 to a central skirt 53 on the piston-head 52 and the lower half bearings 57, 58 are held by a ring 59 threaded into a part circular skirt portion of the housing 54. To reduce piston slap the top face 61 of the head is tapered so that the piston is urged when under load towards the pressure side of the piston where a thrust pad 75, adapted to bear on the cylinder wall, is pivotally mounted on a member 76 secured to a plate 79 sprung on a rectangular boss 80 on the housing 54. The upper half bearing 56 is secured by a key 66 and is provided with oil holes 68, 69 to lubricate the gudgeon pin 51. Piston-rings 64, 65 are secured to the piston head. An alternative form of piston head for use with the previous embodiment is shown in Fig. 12 in which the piston skirt 154 is provided with channels 155 having a groove 156 and housing split piston-rings 157 having a semi-circular part 158 to fit the groove 156 and side flanges 159. The joints of the rings are tongued-and-grooved as at 160, 161. In a preferred form of split piston-ring 100, Fig. 9, the joint is sealed by a plate 101 that extends across the ends behind the ring and has spot-welded thereto ribs 102, received in recesses 103 in the ring, and a rib 104 covering the joint at the top face of the ring.
Patent GB-403878-A (GB)
Title: Improvements in and relating to apparatus for the storage of gases generated by sewage, sewage sludge and like putrefactive liquids and gases of other origin
IPC: F17B1/00
Filed: 1933-05-26
Abstract: 403,878. Treating sewage. FRIES, F., 5A, Kirchmannstrasse, Essen, Germany. May 26, 1933, No. 15270. [Class 111.] A gasometer a is arranged to collect the gases evolved by sewage, sewage sludge or putrefactive liquid which is admitted to the lower part of the movable bell. The floating layer is broken up by revolving arms g on a shaft k journalled at i and passing through a central tube m, the bottom end of which is sealed by an enlargement l. The shaft k is driven by a motor h. The sewage enters at e and leaves at f, whilst illuminating gas is admitted at c, preferably below the level of the sewage so that, in bubbling through the sewage, the poisons are removed from the illuminating gas. The gases are withdrawn through the pipe d. In a modification, the motor h is mounted on the top of the movable bell and the drive is slidably splined to the shaft k.
Patent GB-974477-A (GB)
Title: Process for the manufacture of zinc chromate catalysts for alcohol synthesis
Inventor: PINDUR EMANUEL
IPC: C07C29/153
Filed: 1961-04-27
Abstract: Zinc chromate is produced by treating an aqueous paste of zinc oxide in a layer of 0.3 to 20 mm. thick with aqueous chromic acid. Zinc chromate is formed in the boundary layer and is continuously removed by scraping or rubbing. Small quantities of alkali may be added to the zinc oxide and chromic acid.  The resulting zinc chromate contains so little water that pressing-out of excess water is not necessary. The process may be effected in a hollow cylinder with a horizontal or oblique shaft, or on an endless belt.  In example (1) water, 1% (calculated on the final product) of potassium hydroxide, and zinc oxide are charged into a horizontal rotating cylinder containing iron or porcelain balls. Concentrated chromic acid is then added in amount to give 28-30% CrO3 in the final product. The resulting zinc chromate is dried at 100 DEG  C.  In example (2) a rotating cylinder having an oblique axis of rotation is charged with a paste of zinc oxide, glue and water.  Chromic acid is added and the zinc chromate formed is removed layer by layer by scrapers.  In example (3) zinc oxide paste is spread on a continuous belt and chromic acid is added, the chromate formed being removed by scrapers. The zinc chromate is suitable for use as a catalyst in the synthesis of alcohols, for example iso-butanol, and methanol from carbon monoxide and hydrogen.
Patent GB-1433775-A (GB)
Title: Apparatus for conveying articles
IPC: B65G47/68
Filed: 1973-04-09
Abstract: 1433775 Stopping conveyed articles FOCKE & PFUHL 9 April 1973 [8 April 1972] 15297/73 Heading B8A In an apparatus for bringing articles travelling in two lines 10, 11 into a single line, articles in the lines 10, 11 are halted by respective barriers 10, 11 which include locking discs 24, 25 having recesses 30, 31, a movable locking member 32 being located between the discs 24, 25 such that, when one barrier is in its open position or is moving to that position, the member 32 engages the recess on the locking disc of the other barrier to lock such barrier in its halting position. The barriers are biased to their halting positions but pivot to their open positions when engaged by an article.
Patent GB-1210017-A (GB)
Title: Means for measuring the width of a cavity of the body
IPC: G01B17/00
Filed: 1968-03-29
Abstract: 1,210,017. Measuring dimensions ultrasonically. COMPAGNIE GENERALE D'ELECTRICITE. 29 March, 1968 [6 April, 1967], No. 15299/68. Heading H4D. A dimension of a body cavity (e.g. the width of a ventricle) is measured by an ultrasonic pulse-echo method using a catheter 10 which carries at its end two plates 11, 12 functioning as piezoelectric transducers and connected to respective electrical leads within the catheter. A two-way switch 24 enables either transducer to be connected to pulse generator 21 and receiver 22 for ranging on two opposed walls of the cavity in turn. The two range measurements are indicated and/or recorded at 23 and are added to the catheter width to give the required dimension.
Patent GB-1150655-A (GB)
Title: Improvements in and relating to Methods of Manufacturing Synthetic Resin Mouldings
Inventor: KAWAMURA YUZO
IPC: B29C67/20
Filed: 1966-06-06
Abstract: 1,150,655. Synthetic resin mouldings. Y. KAWAMURA. 6 June, 1966, No. 15384/68. Divided out of 1,150,654. Heading B5A. A synthetic resin moulding is made from cores comprising an inner part of a first material and an outer layer of a different material, by arranging the cores in a mould and treating the cores so that the outer layer softens and adheres to adjacent cores while the inner part maintains its shape. The inner part may be solid, hollow or foam filled and is made preferably of a fairly high melting point polymer. The outer layer is preferably of a low melting point polymer and may be softened by heating or with a solvent. Examples of suitable combinations of polymers are given.
Patent GB-686917-A (GB)
Title: Improvements relating to gas cookers
IPC: A47J37/06
Filed: 1950-06-21
Abstract: 686,917. Grillers for gas cookers. CANNON IRON FOUNDRIES, Ltd., and OATLEY, G. A. June 21, 1951 [June 21, 1950], No. 15468/50. Class 126 In a gas cooker of the kind in which a griller unit and pan support shelf are arranged above the hot plate a griller burner 10 and fret 11, Fig. 2, are fixed in a horizontal position in a hood 12 above a pan support shelf 20 which is mounted in a horizonal position of use intermediate the hot plate and griller and is movable 'from this position into an out of use position where it leaves the space between the griller and the hot plate free of obstruction. The griller unit overhangs the cooker splash back 18 and the shelf 20 may be mounted as shown in Fig. 2, such that it partially slides behind the back 18 when in the out of use position or it may be mounted as shown in Fig. 4, such that it fills in the space between the top of the back 18 and the griller unit when in its vertical position. The griller unit may comprise two frets 11 as shown in Fig. 5.
Patent GB-766901-A (GB)
Title: Improvements relating to squeezing presses
Inventor: WOOD HECTOR ERIC
IPC: D06F45/00
Filed: 1954-05-26
Abstract: <PICT:0766901/IV(b)/1> <PICT:0766901/IV(b)/2> A machine for squeezing materials especially textile materials between rollers, comprises a fixed roller 1 and a roller 2 having bearings 3 which are vertically movable in side guides 4.  Rods 5, 6 depending from the bearings 3 are connected to beams 7, 8 which may be moved downwardly to increase the roller pressure by a spring acting on levers 11, 12 fulcrummed at 13 and pivoted to the beams at 9, or by means of a fluid operated piston rod 16 pivoted at 15 to the levers.
Patent GB-643468-A (GB)
Title: Manufacture of acetic acid and other oxygen-containing aliphatic compounds
IPC: C07C51/23
Filed: 1947-06-13
Abstract: Acetic acid and a compound of formula RCOR1, where R is methyl, ethyl or propyl and R1 is methyl or hydroxy are obtained by oxidizing an acetate of an alcohol containing 2-4 carbon atoms with oxygen at elevated temperatures and pressures in the presence of an oxidation catalyst.  When ethyl acetate is employed, two molecules of acetic acid are obtained per molecule of acetate, one from the ethyl and the other from the acetate radicle.  Pressures of 100-500 lbs./sq. inch are instanced and temperatures which vary with the catalyst used are instanced as generally 125-300 DEG  C. with a range of 150-200 DEG C. when using cobalt naphthenate which may be present in amounts ranging from 0.1 to 5 per cent by weight of ethyl acetate, preferably 0.5 per cent.  Other catalysts specified are cobalt acetate or stearate or manganese acetate.  Mixtures of catalysts may be used such as mixed acetates or naphthenates of cobalt and manganese, cobalt and copper or cobalt and silver.  Acetaldehyde may be present and will also be oxidized to acetic acid and inert diluents such as acetic acid or anhydride, and ethyl benzoate may also be present. Water should preferably be absent.  The ratio of oxygen to ester may be varied considerably but is preferably approximately the theoretical quantities required.  Under the same conditions isopropyl acetate yields acetic acid and acetone, sec.-butyl acetate yields acetic acid and methyl ethyl ketone and normal propyl acetate yields acetic and propionic acids.  In an example, ethyl acetate is autoclaved for 24 hours with oxygen at 200 lbs./sq. inch and at 180-200 DEG  C. in the presence of 1 per cent of cobalt naphthenate and acetic acid recovered on cooling.
Patent GB-910895-A (GB)
Title: Method and apparatus for carrying out a chemical reaction continuously
IPC: B01J19/20
Filed: 1960-05-04
Abstract: In a chemical reaction between two reactants which only proceeds in the presence of a third priming substance, a small proportion of the reaction mixture is reacted in the presence of the primer and controlling means associated with this test are used continuously to control the complete stoichiometric reaction.ALSO:<PICT:0910895/IV (b)/1> In the neutralization of a sulphonic acid with sodium carbonate, these two substances mixed with each other in the anhydrous state do not react but the reaction is started by introducing water. Two separated containers 1 and 2 are provided for the two reactive substances and two proportion devices for the stoichiometric proportioning of the said reactive substances, which are separately conveyed to the mixer 7, where they are closely mixed and carried along by an Archimedean screw.  A portion of said reactive substances so mixed is drawn out by pump 9 and fed to a container 12, provided with an agitation device 13, into which container is fed through the pipe 11, and by means of the continuous proportion device 10, the amount of water necessary for the reaction of the entire mass of reactive substances provided by the two proportion devices 3 and 4.  The reactive substances, when introduced into the water, react, and the pH-meter 15 registering the acidity or alkalinity of the sample acts on the proportioning device 4 of one of the reactive substances, suitably varying its proportioning in order to reach the perfect stoichiometric proportion.  The product from container 12, together with the water acting as a primer, comes into contact with the mass of the two reactive substances which has passed down into the second mixer 17 through pipe 8, this mixer also being a screw-type mixer.  In said mixer 17 the reaction takes place and its product is compressed by the action of the same Archimedean screw against a channelled plate 18, through which it is pressed in order to be subject to a first drying.  This drying is completed by the pneumatic conveyer 19 and the centrifugal separator 21, from which the product is removed in the form of granular powder; the fine powder follows the suction pipe which goes to the chimney, and passes through a powder purifier 24 within which it is retained while the purified air reaches the chimney in the direction of the arrow 25.
Patent GB-1533981-A (GB)
Title: Mine roof support
IPC: E21D23/00
Filed: 1976-04-08
Abstract: 1533981 Mine roof support DOWTY MINING EQUIPMENT Ltd 8 April 1976 [17 April 1975] 15798/75 Heading E1P A mine roof support comprises:-a floorengaging means 1, 21; a roof-engageable means 44 above the floor-engaging means; an interconnection between them including two shields 2, 22 arranged side-by-side, a port 46 of each shield being pivoted to the roof engaging means 44 and each shield part 46 being capable of setting at differing heights above the floor engaging means 1, 21; the roof engageable means 44 being tiltable about an axis passing through both shield ports 46 and about a longitudinal axis by relative variation of the heights settings of the shield ports 46. The shields are connected by a spring plate 36 which, while tending to keep the shields at the same level, allows the roof bar 44 to be tilted about the longitudinal axis by the hydraulic props 5, 25. The shields are connected to the floor beams by upper and lower pivoted links 3, 4 the upper links being connected by spring plates 58. The floor beams 1, 21 are maintained parallel by a spring plate 34 and also connected by a bridge member 52 loosely pivoted at hinges 53, 54 to allow some relative movement on an uneven floor. Each floor beam has a side screen 61, 62. The roof bar 44 and the shields 2, 22 have side screens which may be adjustable to engage the side screens of an adjacent roof support. An advancing jack may be fitted between the floor beams, the shields may be pivoted directly to the floor beams, and the props may be attached directly to the roof beam which can comprise two separate members.
Patent GB-1068510-A (GB)
Title: A device for delivering reconstituted milk in measured quantity
IPC: G01F11/46
Filed: 1966-04-12
Abstract: 1,068,510. Delivering measured quantities of powdered material. C. E. VALENTE. April 12, 1966 [April 15, 1965], No. 15843/66. Heading B8N. A device for delivering measured quantities of reconstituted milk for mixing with, e.g., coffee for a beverage, comprises a measuring chamber 4 for powdered milk, a pivotable receptacle 8 capable of being brought into a position adapted to receive a predetermined quantity of hot water and subsequently the measured quantity of powder for reconstitution, the receptacle being capable of being brought into an inclined position so that it pours its contents into a means 11 arranged to convey them to a beverage receptacle, and means for synchronizing the various movements. The powdered milk is contained in a transparent vessel 2 above a base 3 in which is provided the measuring chamber 4, the inlet and outlet of which being controlled by valve plates 5 and 6, respectively, mounted on a shaft 7. In operation, with the device in the position shown, the valve plate 5 is opened so that the chamber fills with powder and, at the same time, a measured quantity of water is admitted to the receptacle 8 via a nozzle 10. Upon further rotation of the shaft 7 the valve plate 5 closes and the plate 6 opens so that the powdered milk falls into the water in the receptacle and dissolves. Upon completion of the stroke of the device, both valve plates are closed and cam means tilt the receptacle so that the reconstituted milk pours in the means 11.
Patent GB-322195-A (GB)
Title: Improvements in or connected with locks
IPC: E05B63/20
Filed: 1928-05-30
Abstract: 322,195. Good, H. A. May 30, 1928. Latches, preventing operation of; latches, sliding; striking plates and staples.-In a lock having a spring-shot bolt b which can be withdrawn by handles h operating a follower o acting on plates p at the tail of the bolt in the usual way, a lever r is provided, one end s of which is adapted to engage behind a shoulder u on the bolt to block the bolt in shot position, the lever being biassed by a spring t and controlled by a pivoted cam z which is operable from inside by a hand-lever y and from outside by a key 7 operating a rotating-barrel pin-tumbler lock 6, the bar 8 of which engages a slot 9 in a rotatable disc 1. A lost-motion connection is provided between disc 1 and the spindle of cam z by a pin 2 engaging an arcuate recess 5, Fig. 4, so that hand and key operations are independent. The bolt shown has two rods c surrounded by springs m between the inner end of the bolt head and a bearing plate k, and the lever r is of the cranked formation shown to allow the lever and cam z to be pivoted on a central line of the lock between the rods c. A pivoted horizontally movable lever 11 may be provided having a shoulder 12 adapted to engage a pin 13 on the bolt under the action of a spring 14 to retian the bolt in retracted position, the lever being tripped to allow the bolt to shoot by the end 16 of the lever engaging a projection 17 on the staple 18 when the door is closed. A modification of more substantial construction is described in which the stop lever and its controlling cam are mounted between the bolt structure and the front of the casing, the pins 2 and 13 are replaced by shoulders, springs t, 14 are replaced by coiled springs, and the box staple, Fig. 7, is cut away at 30 to allow passage of the lever end 16, the projection 17 being at the remote side of the staple or omitted.
Patent GB-457537-A (GB)
Title: Improvements in and relating to the tempering of plates of glass
IPC: C03B27/012
Filed: 1935-05-31
Abstract: 457,537. Tempering glass. PILKING- TON BROS., Ltd., 703, Tower Building, Water Street, Liverpool, and FORBES, L. J.-B., The Crossways, View Road, Rainhill, St. Helens, both in Lancashire. May 31, 1935, No. 15865. [Class 56] Relates to the method of tempering glass plates or sheets in which the plates are heated in a multistage furnace. According to the invention, the temperatures of the furnaces through which each of the glass plates passes in succession are so regulated that the last furnace raises the temperature of a plate by an amount which is substantially less than the average rise of temperature in the preceding furnaces. When only two furnaces are used, the rise of temperature in the last furnace is substantially less than the rise in the first. The rise of temperature in the last furnace is preferably less than one third of the average rise in the preceding furnaces, and may be 50‹ C. or less.
Patent GB-464176-A (GB)
Title: A process for the manufacture of fibre-containing pressed materials from synthetic resins
IPC: C08J5/04
Filed: 1936-06-06
Abstract: Moulded articles are produced by first mixing long staple fibres with hardenable synthetic resins in a mixer, then compressing the mixture between rolls revolving at equal speeds in opposite directions and capable of being heated, and finally moulding the material under heat and pressure in the usual manner. The fibres may comprise cotton, hemp, jute, cellulose, artificial silk, &c., and the resin may be phenol formaldehyde.  Solvent such as alcohol may be added.  The intermediate products may be hot pressed at 100 DEG  C. using the heat obtained during rolling.
Patent GB-544892-A (GB)
Title: Improved method of and machine for producing gears
IPC: B23F23/12
Filed: 1940-10-30
Abstract: 544,892. Linkwork. GLEASON WORKS. Oct. 30, 1940, No. 15882. Convention date, Jan. 3. [Class 80 (iii) ] [Also in Groups XXII and XXIII] In a method of and machine for generating gears, particularly spiral, bevel or hypoid gears with curved teeth, a cam is arranged to replace the link-actuating roller of a Whitworth quick return motion, the cam being so designed that a uniform working roll of the cradle is obtained together with the quick return of the Whitworth mechanism. To determine the curve conjugate to the link centre-line 299, Fig 12, which will give the required uniform motion let 300 represent the circle of centre 291 described by the centre of a roller engaging the slot 289 of a Whitworth link swinging about a centre 295. The motion required to give uniform angular movement to the line 299 is that which would be caused by the circle 300 rolling on a circle 301 concentric with axis 295. It is shown that the points of contact C between the required cam and the line 299 lie on the circle 303, Fig. 12, and that the required curve is a cycloid 305 formed by rolling the circle 303 internally on the circle 301. The actual cam profile required is the curve 309, spaced from the cycloid by half the width of the slot. The complete cam 315, Fig. 13, is shown in relation to its guides 132, 133, and the cradle axis 295 at one end of the uniform motion, the cam being rotated about the axis 291 through an angle # (80 degrees), from its mean position to produce an oscillation through an angle #<SP>1</SP> (25 degrees) of the cradle. The normal 316 to the centre line 314 passing through.the instantaneous centre 302 intersects the median line 317 of the cam in the centre point 319 of circular arcs 320, 321 joining the ends of the cycloidal parts 330, 331. The arcuate portions serve to provide deceleration and reverse at the ends of the uniform working and return strokes. By radial adjustment of the cams with respect to axis 291 the same cam may be made to give different amounts of cradle roll