baber/WOPTO huggingface dataset:
Patent GB-311600-A (GB)
Title: Cantilever to stop run away hutches on inclines or braes in mines
IPC: B61K7/00
Filed: 1928-07-23
Abstract: 311,600. Malee, A., and Brown, J. July 23, 1928. Buffer stops, for use on inclines, comprise a cantilever frame and stop-pawl supported by overhead cross-girders. The pawl R is pivoted at N<1> and pinned at 0 to the frame G which is pivoted at N<2> between girders P<1> carried by crossgirders P<2>. The frame G is connected by a rope E with a lever B which is held up by a support A under the control of an attendant. When support A is removed, frame G swings on its pivot N<2> and engages a buffer H carried by the girders P<1>. The pawl R then engages the front of the wagon while a leg M on the pawl prevents tipping of the wagon. To release the wagon, pin 0 is removed by hand so as to allow the pawl R to swing about its pivot N<1>.
Patent GB-299932-A (GB)
Title: Improvements in washer making machines
IPC: B21D53/20
Filed: 1927-08-13
Abstract: 299,932. Smith, Ltd., D., and Smith, D. Aug. 13, 1927. Washers.-In a machine for making washers a fixed die P co-operates with a die C and a punch F on a crank-reciprocated head B. An ejector G is moved forward on the back stroke of the head by a stop M contacting with a pivoted lever K co-operating with an ejector-rod H. A plate S is moved by cam-actuated rods to lift the strip from the die P at each operation. Shearblades m on the head co-operate with a fixed blade n to sever the waste strip. The strip is fed by a taper cam c on the head moving a spring-pressed member b carrying a dog and a face a between which the strip is clamped. A duplicate dog and face f prevents reversal of movement of the strip. In a modification ratchet driven feed rolls are used. The end of a pivoted lever sweeps over the face of the die c to dislodge ejected washers.
Patent GB-935937-A (GB)
Title: Liquid mixing device
Inventor: BOWMAN LAWRENCE EVERTON
IPC: G05D23/13
Filed: 1962-06-02
Abstract: 935,937. Valves. LEONARD VALVE CO. June 2, 1962, No. 21352/62. Class 135. A mixing valve has a base member 11, Fig. 1, with cold and hot inlets 2, 3 leading into chambers 24, 27, respectively, each via a non-return valve 31 or 32 which prevent back flow to the inlets and automatically shut-off the water supply when a central unit 12 is removed from the base 11; the non-return valves may be manually closed. The chambers 24, 27 lead into a mixing chamber 50 through passages 100, 106 and ports 114, 115, respectively, which chamber 50 opens into an outlet chamber 22 having two opposed outlets one of which is plugged and the other of which opens to a shower nozzle through an " on-off " valve. The control unit 12 embodies a shaft 51 to which is splined a handle 151 having a temperature indicating pointer 133, a bracket 143 that co-operates with stops 130, 131, and an aesthetic skirt 134; the shaft 51, Fig. 4, is journalled in the unit 12 in which is formed the mixing chamber 50 and into which the shaft 51 depends. A double-coiled bimetallic thermal-element 56 connects the shaft 51 to a valve actuator 80 embodying a pinion 81 that engages rack teeth 117 on a movable piston-closure member 116, Fig. 1, which determines the degree of opening of ports 114, 115 and hence the outlet water temperature. The passages 100, 106 and member 116 are part of the unit 12 being secured thereto by a bridge 91 to which is also attached a bearing member 120, Fig. 4, for the valve actuator 80. If the temperature of the water in the chamber 50, Fig. 1, differs from the temperature set by the handle 151 then the thermal element 56 rotates the actuator 80 to slide the closure member 116 to adjust the areas of ports 114, 115.
Patent GB-837436-A (GB)
Title: A temperature-controlled device for mixing hot and cold water
Inventor: HONEGGER WILLY
IPC: G05D23/13
Filed: 1956-07-11
Abstract: 837,436. Temperature-responsive actuating elements. HONEGGER, W., and LINS, A. July 11, 1956 [July 11, 1955], No. 21493/56. Class 64(2) [Also in Group XXIX] In a device (see Group XXIX) for mixing hot and cold water, the temperature of the mixture is determined by the action of a diaphragm 47 on a pilot bulb 35 by way of a bored rod 41 which communicates between the bulb and the chamber beneath the diaphragm. Change in pressure of liquid and vapour of "Freon" (Registered Trade Mark) in the bulb 35 and the diaphragm chamber causes the diaphragm to raise or lower the bulb together with valves 27 and 38 which determine the water flows into the mixing chamber 34 in which the bulb is mounted. The valve 27 is movable, by operation of a knob 37, with respect to the bulb 35, being lowered from the off position shown to initiate the action of the device. The raising of the bulb and valves is against the adjustable loading of a spring 31. The rod 41 can move axially, but not rotationally, in a guide 42 on the valve 38.
Patent GB-567283-A (GB)
Title: Improvements in or relating to the cutting of metal stock by means of an oxidising jet
IPC: B23K7/00
Filed: 1943-12-23
Abstract: 567,283. Dividing by fusion. BRITISH OXYGEN CO., Ltd., HUCKLESBY, F. D., and WILLIAMS, C. H. J. Dec. 23, 1943, No. 21505. [Class 83 (iv)] In a method of producing by a blow-pipe a cut edge in a metal plate inclined to the surface thereof, a representation of the contour of the edge desired is mounted on or in juxtaposition to the plate with the contour in or parallel to the plane of the cut, an index is set in coincidence with the line of the contour and the cutting nozzle is brought into axial alignment with the index to set it at the required cutting angle. The edge which may be cut to facilitate subsequent welding may be square or may be of single or double bevel form, or partly square and partly bevelled. A frame 10 having a clamp 12 for securing to an edge of the plate normal to the direction of the cut, is provided with a slot 13 along which may be moved the pivot 14 for an index bar 16 which is itself slotted at 15 for longitudinal movement. On the frame is slidably inserted between rollers 21, 22 one of a number of mounts 20, preferably of brass, for templates 19, having an edge 26, 27, 28 of the required contour, or alternatively for a drawing thereof. The mount may be provided with a wing 23 projecting over and lying on the surface to be cut, the wing having an overlying arm 24 with a straight edge 25 which may be brought into coincidence with the line of cut or having a scribe line thereon or being replaced by a pointer on the mount or template. The bar 16 has a straight edge 18 for engaging the faces of the template and may have at its upper end a locating recess 32 for accommodating the cutting nozzle with the oxygen passage 34 in axial alignment with the straight edge on the bar or may be provided with a clip or cup into which the nozzle fits or a style which is inserted into the nozzle orifice. The frame is first secured to the work with the straight edge 25 in line with the cut to be made and the bar 16 is brought into register with a face of the template and secured by the wing nut 17 at the appropriate angle with the recess 32 at the appropriate distance from the work. Thereupon the nozzle is positioned in the recess and then secured in its holder. In making an edge of the contour shown, three separate nozzles are used which are in turn placed at the required angle and distance from the work in the manner described. The device is then removed and the three cuts then effected by traversing the nozzles simultaneously. In order to allow for the width of the kerb, the template is fixed to the mount with the vertical face 27 projecting beyond the straight edge 25 so that the latter coincides with the actual boundary to which the metal stock is to be cut. The faces 26-28 of the template produce a finished edge 29, 30, 31 on the plate.
Patent GB-403595-A (GB)
Title: Process and apparatus for producing water gas in chamber and retort ovens
IPC: C10J3/00
Filed: 1933-08-01
Abstract: 403,595. Coking processes. STILL, C., Recklinghausen, Westphalia, Germany, and GOBIET, A., Karvinna, Czecho-Slovakia. Aug. 1, 1933, No. 21590. Convention date, Aug. 1, 1932. Addition to 389,377. [Class 55 (i).] In a coking process of the kind described in the parent Specification, in which steam is admitted to the charge in a coke oven through tubes embedded in the charge, two oven chambers are interconnected so that the water gas and unconverted steam from the first oven are passed into the charge in the second oven and the finished water gas led away. Steam from a pipe 22b is passed into the charge in oven 1b through tubes 20b extending vertically into the charge, and the resulting gases pass through an uptake 9b and branch 69b into a pipe 22a leading to tubes 20a in oven 1a, from which the gases escape by outlet 9a.
Patent GB-1127118-A (GB)
Title: Dishwasher with improved liquid inlet system
IPC: A47L15/16
Filed: 1966-05-16
Abstract: 1,127,118. Dishwashing machines. GENERAL ELECTRIC CO. 16 May, 1966 [14 June, 1965], No.21617/66 Heading A4F. In order to avoid both siphoning and undesirable "blow-outs" of air, washing water is sprayed into the washing chamber of a dishwashing machine through a nozzle 23 disposed close to but spaced horizontally from an opening 17 formed in an inclined portion of the top wall 6 of the washing chamber, and spaced vertically from the lower edge of the opening 17. The nozzle 23 is disposed at a corner of the top. wall 6 and ejects liquid as a fan-shaped jet through the opening 17 into the space between the wall 6 and a fanshaped baffle 32 formed with louvres 33. Corrugations 35 in the wall 6 deflect the spray downwardly.
Patent GB-807717-A (GB)
Title: Improvements in or relating to the production of xylenes
IPC: C10G45/62
Filed: 1955-07-28
Abstract: 807,717. Xylenes. BRITISH PETROLEUM CO. Ltd., NORTHCOTT, R. P., and CUDDINGTON, K. S. July 16, 1956 [July 28, 1955], No. 21844/55. Class 2 (3). A xylene isomer is obtained from a petroleum naphtha fraction by passing the naphtha together with a recycle gas containing normally gaseous constituents and a recycle liquid stream over a platinum-containing catalyst at 450- 550‹ C. and 100-800 p.s.i.g., separating a gas stream from the product for the recycle gas stream and distilling the liquid product to obtain a narrow-boiling, xylene-containing fraction from which the desired xylene isomer is separated, a fraction containing at least part of the remaining xylene isomers being recycled as the recycle liquid stream. The naphtha feed preferably has an initial boiling-point in the range 50-100 C. and a final boiling-point in the range 170-200‹ C. and contains by weight 35-70 per cent paraffins, 20-50 per cent naphthenes and 7-25 per cent aromatics. It may be passed over the catalyst at a space velocity of 1-10 vol./vol./hr., with a gas recycle rate of 8000-12,000 standard cubic feet per barrel of feed and a liquid stream recycle rate of 5-25 per cent by weight based on fresh feed. The catalyst may be 0.1-1 per cent platinum on alumina with 0.1-8 per cent of halogen. The xylene-containing fraction recovered from the product may have a boiling range within the range of 120-145‹ C. The separation of the xylene isomers is performed conventionally, e.g. as described in Specification 625,570. If para-xylene is desired this is preferably separated by fractional crystallization with carbon tetrachloride, as in Specification 677,368.
Patent GB-187388-A (GB)
Title: Improvements in tobacco smoking pipes and the like
IPC: A24F1/08
Filed: 1921-08-19
Abstract: 187,388. Longbottom, A., (Longbottom, C. H. R.). Aug. 19, 1921 Tobacco pipes and cigar and cigarette holders.-Relates to stems with annular traps formed by axial tubes and consists in the particular arrangements shown on the drawings. Fig. 1 shows a pipe stem with an intermediate part b of wood, glass, metal or vulcanite, a screwed coupling plug c with projecting tubes c<1> and a short mouthpiece d with a projecting tube d<1>. In a modification, Fig. 2, push joints are substituted for the screws. In Fig. 3, a flanged tubular mouthpiece d<1> is inserted in the tube b which is connected to the pipe stern by a shouldered screwed tubular plug c. Fig. 4 shows a pipe constructed of two parts a, d with tubes a<2>, d<1>, preferably of aluminium, inserted in the bores and projecting into the chamber b<1>.
Patent GB-256410-A (GB)
Title: Improvements in expansion joints
IPC: F16L51/04
Filed: 1925-09-03
Abstract: 256,410. Dorman & Co., Ltd., W. H., ,and Steed, O. H. G. Sept. 3, 1925. Expansion joints; bonds.-An expansion joint comprises a preferably S-shaped pipe section A mounted on pivots B, about which it is adapted to rock in either a horizontal or vertical plane, the ends of the pipe line C being connected to the extremities of the bend A by means of universal joints D, the casings E of which are either attached to or formed integral with the bend. The intermediate portion F of the bend is preferably elliptical in cross-section, while the bend may be arranged to rotate as a whole by providing a ring or other rotatable mounting as a support for its pivots.
Patent GB-460779-A (GB)
Title: Improvements in or relating to valve mechanism for water heaters and the like
IPC: F24H9/20
Filed: 1935-08-03
Abstract: 460,779. Multiple-way valves. CHAPMAN, F. W., and OMNIA MANUFACTURING CO., Ltd. Aug. 3, 1935, No. 22069. [Class 135] In a gas-heated water heater, the gas and water valves are actuated by a cross-head carrying adjustable abutments adapted to engage the valves to permit of their being actuated in different time relationship. In a casing 10 are housed a water valve 11 and a gas valve 12 of the spring-loaded poppet type so arranged that passage of fluid tends to close the valves. A crosshead 15 is adapted to slide over a square part 7 of a member 17 fixed to the casing, and having a screw-threaded part on which a member 16 with handle 18 may be rotated. A light spring 24 may be inserted below the cross-head which is provided with adjustable screwthreaded abutments 21, 22 having lock nuts 23. The adjustment is such that the water valve is opened first. The usual pilot jet is located on a pipe 25 connected to the gas-valve chamber 26. A gas cock 27 on the supply pipe 28 has a safety device in the form of an arm 29 which, when the valves 11, 12 are open, is prevented from being moved. The water outlet to the heater is at 32. Where a separate cock is provided for the pilot jet, it may be interlocked with the handle 18 or member 16.
Patent GB-1107157-A (GB)
Title: Chromium-containing diffusion coatings for metals
IPC: C23C10/22
Filed: 1965-05-25
Abstract: Cr diffusion coatings are formed on Fe, Ni, Co or a metal having a melting point above that of iron e.g. Mo, W, Ti, Zr, Hf, V, Nb, Ta by immersing the substrate in a molten bath comprising Cr or Cr2O3 dissolved in molten Ca, and an alkali metal under an inert atmosphere to prevent oxidation.  The coating may contain Ni. The melt may be in Fe, Ni or Ta container which is vibrated or subject to rolling and rocking motion in a tube furnace.  Batch, semi-continuous and continuous coating are referred to.
Patent GB-796822-A (GB)
Title: Improvements in packaging machines
Inventor: BROOKE HAROLD
IPC: B65B41/12
Filed: 1955-08-03
Abstract: 796,822. Feeding webs. FORGROVE MACHINERY CO., Ltd. May 17,1956 [Aug. 3, 1955], No. 22292/55. Class 100(1) [Also in Group XVII]. In a packaging machine provided with means for feeding a web of sheet material to the machine, a movable feeler is arranged to bear against the web and to be displaced thereby to different positions in accordance with the web tension, the feeler being arranged to operate a time delay switch to stop the machine when, in response to slackness of the web the feeler both moves into a dwells, for a predetermined period in an extreme position situated outside its normal range of movement. As shown, a web 10 of wrapping material is fed from a roll 11 by feed rollers 12. The web passes around a roller 13, carried by a pivoted arm 14. The arm 14 oscillates in response to variations in web tension, within a narrow range between positions A and B. In the event of web breakage or interruption of feed, the arm 14 reaches a position C, thereby causing a cam 17 on the arm to rock a lever 19 against the action of a spring 21. The lever 19 depresses the plunger 22 of a time delay switch 23 which after an appropriate delay stops the electric motor, not shown, driving the packaging machine. In a modification, Fig. 2, not shown, a light finger engaging the web closes a micro-switch upon reaching an extreme position, thereby energizing a solenoid which controls a time delay switch. This time delay switch de-energizes a starter coil of the electric motor driving the packaging machine. The motor is restarted by manual depression of a switch which energizes the starter coil.
Patent GB-794946-A (GB)
Title: Machine for forming toothed elements
IPC: B21H5/02
Filed: 1956-07-19
Abstract: 794,946. Rolling. MICHIGAN TOOL CO. July 19, 1956 [Dec. 1, 1955], No. 22391/56. Class 83 (4). In a method of rolling gear teeth, splines, &c., the workpieces 64, Fig. 4, are supported on a fixed axis and are engaged by platens 50, 52 on opposite sides and moving simultaneously in opposite directions by hydraulic means. The tools 50, 52 are mounted on slides 32, 34, Fig. 3, running on slideways 24, 34 and movable by hydraulic cylinders 74, Fig. 1, having piston rods 80 coupled to projections 82 on the slides. The platens 50, 52 are attached to the slides by brackets 46 and bolts 48, 54 and are adjustable by backing wedges 68, 70 which are moved by adjusting screws 67. Synchronization of the platens is obtained through a gear 98 running on a fixed support member 102 and engaging racks 94, 96 on the slides 32, 34. Lubrication for the gear 98 and slides 32, 34 is provided through ducts such as 146, 148. The work 64 is supported between centres 114, 166 and the centre 114, Fig. 3, is attached to a slide 108 which is adjustable within the support 102 by a screwed rod 116 rotatable at a wrench-engaging end 132 and located by a thrust bearing 126. The other centre 166 is carried by a slide 158 which is movable along a slideway 154 to accommodate various lengths of work. The centre 166 is rotatable in bearing 170 and retractable by an hydraulic cylinder 186 for release or insertion of the work. Sequential operation of the apparatus is obtained through limit switches 194, 196, 198 actuating solenoid valves controlling the cylinders 74, 186. The parts may be cold rolled or induction heated and the teeth on the platen may have inclined pitch lines or may gradually increase in height so that the impression made in the workpiece gradually increases as the operation proceeds.
Patent GB-832225-A (GB)
Title: Olefin polymerization
IPC: C08F4/64
Filed: 1956-07-19
Abstract: A catalyst for polymerizing olefines is made by reacting aluminium tri-ethyl, aluminium diethyl chloride or a mixture of these with titanium tetrachloride, and holding the mixture at a temperature of - 100 DEG  C. to +90 DEG  C. for 1 to 30 minutes, before adding the olefine to be polymerized, whereby the activity of the catalyst is improved.  The pre-treatment may start as soon as the components are brought together.  Examples and graphs are given, showing that the optimum pre-treatments are, for titanium tetrachloride mixed with (1) AlEt3, -20 to -50 DEG  C. for 5-20 mins.; (2) AlEt2Cl, 40 DEG  to 60 DEG  C. for 5 to 20 mins.; (3) 75% AlEt2Cl and 25% AlEt3, 20 DEG  to 40 DEG  C. for 5 to 20 mins. A paraffinic diluent, e.g. n-heptane is used, and mixing is effected under a blanket of nitrogen.  The ratio of Al/TC may vary from 1 : 1 to 12 : 1.  The yield of polymer exceeds 150 g. per g. of pre-treated catalyst.ALSO:A catalyst for polymerizing olefines at low pressures is prepared by reacting aluminium tri-ethyl, aluminium di-ethyl chloride or a mixture of these, with titanium tetrachloride, and holding the mixture at a temperature of -100 DEG  to +90 DEG  C. for 1 to 30 mins., before adding the olefine to be polymerized, whereby the activity of the catalyst is improved.  The pre-treating stage may start as soon as mixing of the components commences.  Examples and graphs are given showing that the optimum pretreatments are: for titanium tetrachloride mixed with (1) AlEt3, -20 to -50 DEG  C. for 5 to 20 mins; (2) AlEt2Cl, 40 DEG  to 60 DEG  C. for 5 to 20 mins; (3) 75% AlEt2Cl+25% AlEt3, 20 DEG  to 40 DEG  C. for 5 to 20 mins.  A paraffinic diluent is used in each case, e.g. n-hystane, and mixing is effected under a blanket of nitrogen. The ratio of Al/Ti may vary from 1:1 to 12:1.  The yield of polymer, the molecular weight of which may be up to 3 X 106, exceeds 150 g. per g. of pre-treated catalyst.  The olefines polymerized include ethylene, propylene, isobutylene, styrene. In the case of propylene the pretreatment applied to a mixture of titanium tetrachloride and AlEt3 should be at 75 DEG  C. for up to 15 mins.  Polymerization of the olefines may be effected in the presence of diluents, e.g. pentane or higher paraffins; cyclohexane, tetrahydronaphthalene; aromatic or halogenated aromatic hydrocarbons; ethers, e.g. dioxane, using pressures up to 250 atmospheres and temperatures in the range preferably of 0 DEG -150 DEG  C.
Patent GB-617206-A (GB)
Title: Improvements in and relating to coupling hitches for coupling agricultural implements to tractors
IPC: B60D1/155
Filed: 1946-07-29
Abstract: 617,206. Draught devices. ADIE, D. R., and SMAIL, D. J. July 29, 1946. No. 22476. [Class 6 (i)] [Also in Group XXXII] In a coupling hitch between tractors and agricultural implements of the type in which there are a pair of lower drag links and an upper link, normally in compression in order to prevent upward tilting of the implement, the upper link is formed of two linear pivotally interconnected members a and b, one of said members b being extended beyond the pivot d and co-operating through yielding means e with the other member a, whereby said members are maintained normally in alignment, and the said pivot d is offset with respect to a straight line interconnecting the points of attachment a<SP>1</SP> and b<SP>1</SP> of the members with the tractor and the implement so that when the link is subjected to abnormal pressure, the said yielding means permit the link to collapse about its pivot. The moment about the pivot d may be varied to suit different types of soil by angular adjustment of the element l. An improvement described provides also for variation of the effective length of the hitch.
Patent GB-461078-A (GB)
Title: An improved intermittent motion device
IPC: G03B1/38
Filed: 1935-08-09
Abstract: 461,078. Kinematograph apparatus. PRENDERGAST, J. X., and CRICKS. R. H. Aug. 9, 1935, No. 22511. [Class 97 (i)] [Also in Group XXIV] In a Maltese cross mechanisn in which each slot of the cross is at an angle to a radius, and the striking pin enters the slots ap proximately tangentially, the angle of movement of the strik ing pin needed to complete each movement of the cross being less than it would be if it both tangen tially entered and left radial slots the face of each slot engaged by the striking pin during its withdrawal is so shaped as to produce a gradual deceleration of the cross ; oil cushioning may be provided to minimize hammering of the cross and locking cam during the withdrawal of the pin. The Figure shows a cross having four slots moving through 90‹ while the striking pin 10 moves through 60‹, the slot next to be engaged by the pin making an angle of 62¢‹ with the line joining the centres of the cross and locking cam 13 while the cross is locked. The face 9 of each slot engaged by the pin 10 during the last 10‹ of pin movement is relieved according to a curve mathematically or experimentally established to produce a substantially even deceleration of the cross. Oil cushioning may be provided by drilling intersecting holes 11, 12 within the cam 13, through which oil is forced by the rotation of the cam to oppose the hammering effect. The number of slots in the cross may be varied, and a cross having eight slots is described.