baber/WOPTO huggingface dataset:
Patent GB-346290-A (GB)
Title: Improved regenerating process for vulcanised rubber
IPC: C08J11/16
Filed: 1930-01-06
Abstract: Vulcanized rubber is regenerated by treating it with mercury or its compounds in an amount less than that required to combine with the sulphur of the vulcanized rubber.  The mercury or compounds may be employed in the solid state or as solutions or suspensions. In an example waste vulcanized rubber is crushed and treated in a stirring vessel with a solution, sufficient to moisten the powder, of mercuric nitrate in half-normal nitric acid, the proportion of mercury being 0,5 per cent of the dry rubber.  The rubber powder is then dried at 100-105 DEG  C., when reaction takes place.  The partly-liquid mass is then masticated and treated in the usual manner preliminarily to vulcanization.  In another example, a small quantity of metallic mercury or solid mercury salt is mixed with the ground rubber on hot rollers.  The mass is then left for some hours at about 130 DEG  C. and regeneration then finished in a rolling mill or masticator, preferably with the addition of a small quantity of raw rubber to assist plastication. Specification 19284/93, [Class 70, Indiarubber &c.], is referred to.
Patent GB-763826-A (GB)
Title: Preparation of steroid compounds
IPC: C07J71/00
Filed: 1953-01-07
Abstract: The invention comprises D 2 - 12 - (keto, hydroxy and acyloxy) - 22 - isoallospirostene and D 2,9-12-(keto, hydroxy and acyloxy)-22-isoallospirostadiene, and a process for the preparation thereof by reacting the corresponding 2,3 - bis (hydrocarbonsulphonoxy) - 22 - isoallo-spirostane or D 9-22-isoallospirostene with an alkali metal iodide.  In the above reaction a mixture of the 12-keto (or hydroxy)-22-isoallospirostane and the corresponding 12-substituted - D 9-22-isoallospirostene reactants may be used to give a mixture of the corresponding D 2- and D 2,9 products.  The reaction may be carried out in an acetone solution, a suitable alkali metal iodide being sodium iodide.  The products of the above process containing D 2,9-unsaturation may be hydrogenated with sodium and a lower alkanol, e.g. butanol, to saturate the double bond at the 9-position and to convert the 12-keto group when present to a 12-hydroxy group.  Thus in each case where the mixture of D 2- and D 2,9-products is hydrogenated, the product is D 2-12-hydroxy-22-isoallospirostene.  The hydrocarbonsulphonoxy groups may be derived from an alkane sulphonyl chloride such as methane and ethane sulphonyl chloride, an aryl-substituted alkane sulphonyl chloride such as benzyl sulphonyl chloride, or an aryl sulphonyl chloride such as benzene sulphonyl chloride and p-toluene-sulphonyl chloride.  A number of detailed examples are given  Starting materials.  2,3 - Bis - ((hydrocarbon-sulphonoxy) - 22 - isospirostanes and - D 9 - 22 - isoallospirostenes containing a 12-keto or -hydroxy substituent are prepared by reacting the corresponding 2,3-dihydroxy-compounds with a hydrocarbon sulphonyl chloride, examples of which are referred to above, preferably in the presence of a tertiary amine such as pyridine.  A mixture of 2,3 - dihydroxy - 12 - keto (or hydroxy) - 22 - isoallospirostane and D 9-22-isoallospirostene may be used in this process.  The preparation of 2,3-bis (mesyloxy)-12-keto-22-isoallospirostane and a mixture of 2,3-bis (mesyloxy) - 12 - keto - 22 - isoallospirostane and D 9 - bis (mesyloxy) - 12 - keto - 22 - isoallospirostane are detailed. Specification 763,827 is referred to.
Patent GB-580530-A (GB)
Title: Improvements relating to opacifiers for enamels
IPC: C03C1/04
Filed: 1943-01-13
Abstract: 580,530. Enamels. McINTYRE, G. H. and BAHNSEN, M. J. Jan. 13, 1943, No. 602. [Class 56] An opacifier for porcelain enamels comprises a preformed product having the general formula XF4.YO.ZO8, where X is enough atoms of at least one of the metals of the alkaline or alkaline earth metals (periodic groups I and II) or zinc to satisfy the valency of the four fluorineatoms, Y is enough atoms of at least one of these metals to satisfy the valency of one atom of oxygen and Z is enough atoms of at least one of the elements Si, Zr, Ti to satisfy the valency of eight oxygen atoms. The opacifier may be used as a mill addition or a smelter addition and may be obtained by completely sintering the theoretical amounts of raw material to produce the product, having the above formula. The opacifier may be dissolved in a titanate, zirconate or silicate matrix.
Patent GB-622207-A (GB)
Title: Improvements in methods of coating or encasing substantially cylindrical objects by a pressure moulding process and mould arrangement for use in carrying out such methods
IPC: B29C45/14
Filed: 1946-01-07
Abstract: 622,207. Injection-moulding machines. GRAVESEN, C. C. Jan. 7, 1946, No. 615. Convention date,.Jan. 5, 1945. [Class 87 (ii)] A cylindrical object, such as a condenser, is wholly encased in plastic material by first encasing one end and some or all of the side of the object and then covering the other end and any remaining part of the side. In one method, Figs. 1 and 3, the condenser 5 is slidably mounted in an end guide 9 which with a piston 8 forms one end of a mould cavity 4. The other end of the cavity is formed by a stopper 10, which may either abut against the face of or fit in one of several holes in a rotatable ring 11 mounted on a mould block 1 of an injection-moulding machine. In operation, the mould blocks 1, 2 are brought together, and material is then injected into the mould, which causes the guide 9 to move to the right. When the guide is nearly clear of the condenser, it is stopped, by means not shown, and the injection is also temporarily stopped. The block 2, together with a ring 3, is then withdrawn, the movement of the piston 8 being delayed for a time sufficient to cause the dead head to be sheared where it joins the coating. Also during the early part of this movement the main part of the dead head is held against the block 1 by a plunger 16, to ensure that the dead head is removed from the ring 3. The dead head is later removed by an ejector rod working in the plunger 16. The ring 11 is then rotated to bring one of its holes in line with the stopper 10. The blocks 1, 2 are brought together again, see Fig. 3, and more plastic material is injected to enclose the rest of the condenser. The coated condenser is ejected axially. In a modification, Fig. 4, material is injected through an inlet 15 to cause a stopper 13 to move to the left and thus, through a connecting member 14, cause a piston 8 to eject the condenser 5 out of a guide 12. When the condenser has left the guide by a short distance, the movement of the condenser is stopped, e.g. by the member 14 striking an abutment. The piston 8 is then moved to the right, e.g. by providing a spring connection or a releasing device between the piston 8 and the member 14, to allow the end of the condenser to be coated.
Patent GB-569341-A (GB)
Title: Improvements in cartridge-belt feeding mechanism for automatic guns
IPC: F41A9/51
Filed: 1942-01-15
Abstract: 569,341. Machine guns. ROE & CO., Ltd., A. V., and BEARDSHALL, G. Jan. 15, 1942, No. 625. [Class 92 (ii)] Cartridges in belt form are fed to the loading position by a hydraulic motor comprising a plunger c, a slide valve d, and a slide h having projections h, i for actuating the valve and a spring-pressed pawl g engaging and andvancing the cartridges. A stop t positions the foremost cartridge in the loading position. Pressure fluid enters and leaves the working space b by transverse passages in the housing, by passages p, v in the valve d and by further communicating longitudinal and radial ducts. The motor is singleacting, return movement of the parts being effected by springs f. Spring-loaded plungers k, transverse to the slide valve, hold it in one or other of its service positions. Pressure fluid is supplied and leaves through pipes m, n secured in a unit x, Fig. 9, which slides into a seating in the end of the motor housing and includes spring-pressed valves z, z<1> which close automatically on withdrawal of the unit. A balldetent 8 retains the unit with its ports in register with those of the motor.
Patent GB-471407-A (GB)
Title: Elevating mechanism for firearms
IPC: F41A27/06
Filed: 1937-01-08
Abstract: 471,407. Gun mountings. CESKOSLOVENSKA ZBROJOVKA AKCIOVA SPOLECNOST BRNO. Jan. 8, 1937, No. 638. Convention date, Jan. 9, 1936. [Class 92 (i)] Relates to gun-elevating mechanism of the kind comprising an elevating shaft 10 which is geared with one or more elevating sectors 5, 5<1>. According to the invention, the elevating mechanism is fixed in the adjusted position by means of a device comprising a member 15 axially slidable along the shaft, and a member 16 rotatably mounted on the member 15 and adapted to impart the sliding movements thereto. As shown, the two members have a screwthreaded engagement and, when extended, bear one against the sector 5 and the other against the operating handle 13, thus fixing the elevating mechanism in the adjusted position. A handle 21. is provided on the member 16 to effect its adjustments. The shaft 10 passes through the cradle 2 and terminates, at one end, in a cross-piece 12 which fits in a radial groove in a washer 14. Teeth 11, 11<1> on the shaft mesh with the teeth 9, 9<1> of the sectors. The latter are pivotally connected to a slide 6 arranged for sliding movement on a transverse guide sector 7 carried by the rear legs of the tripod stand 1. A single sector may be employed in place of the two sectors shown and the teeth on the shaft may be connected by intermediate gearing to the teeth of the sector or sectors as distinct from the direct connection shown.
Patent GB-734138-A (GB)
Title: Improvements in or relating to adjustable time measuring valve circuits
Inventor: GRAY TREVOR
IPC: H03K17/288
Filed: 1953-01-08
Abstract: 734,138. Pulse-generating circuits; pulse radar. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Dec. 7, 1953 [Jan. 8, 1953], No. 657/53. Classes 40 (6) and 40 (7). An adjustable time-measuring circuit comprises a cathode-coupled flip-flop circuit the grid bias of one valve of which is adjustable to a predetermined value indicative of a given time period, a capacitor being connected between the grid of the other valve of the pair and H.T. + and having a normally conductive switching valve across it, the timing period commencing when the switching valve is rendered non-conductive so that the capacitor charges until at the end of the period the other valve of the flip-flop pair conducts. The Figure shows a circuit for generating a range-marking signal at a pulse radar set the position of which can be moved manually along a time-base until it coincides with the echo signal, the distance of the originating target being read-off on the calibrated scale of the manual control. When the radar transmitter transmits a pulse a negative-going pulse is applied at C1 to cut-off valve SV1 and capacitor C3 charges through resistors R3 and R4 to generate a negative-going sawtooth voltage at the grid of valve V3 which is linearized by means of the feedback " bootstrap " type circuit via capacitor C4, after a period predetermined by the setting of the calibrated range-marker control potentiometer RV1, the voltages of the grids of valves V3 and V4 are approximately equal and the flipflop circuit V3, V4 changes its state so that valve V3 is cut-off and V4 conducting. A negative pulse is thus generated at terminal OUT which may operate a signal generator to produce a marking display on the cathode-ray display tube of the radar set.
Patent GB-996779-A (GB)
Title: Soap dies and method of manufacture thereof
Inventor: COETZER LOUIS
IPC: B29C33/38
Filed: 1962-01-08
Abstract: 996,779. Moulding soap dies. COLGATEPALMOLIVE CO. Jan. 8, 1962, No. 665/62. Heading B5A. An epoxy resin die 16, for use with a rotating spider 1 in forming soap or detergent tablets, is cast within the spider pocket 2 upon a master mould of polished machined acrylic resin or dental stone bearing lettering &c. The pocket 2 and mould 3 are coated with silicone wax release agent before filling with epoxy resin containing 65 parts by weight of inorganic filter, e.g. silicon carbide, silica glass, glass fibres, quartz, calcium carbide, graphite, titanium dioxide, asbestos, nylon or metal powder, and 35 parts of resin comprising 35 parts by weight of liquid polyglycidyl ether of bisphenol with 8 to 10 parts of a precondensate of an aliphatic polyamine. A brass backing plate 11, having V-shaped retaining grooves, is cast within the die to provide threaded holes whereby the cured die is removed from the mould by screw extraction.
Patent GB-878663-A (GB)
Title: Thiophosphoric acid esters
IPC: C07F9/165
Filed: 1959-01-08
Abstract: The invention comprises thiophosphoric esters of the formula <FORM:0878663/IV (b)/1> where Y is oxygen or sulphur, R is alkyl, cycloalkyl or phenyl, R1 is an alkyl or aryl carbonyl, alkoxy or aryloxy carbonyl, alkyl or aryl sulphonyl, alkyl or aryl or alkaryl amido, cyano or aldehyde radical, R2 is hydrogen or an alkyl or aryl radical or may be the same as R1 when R1 is an alkyl or aryl carbonyl or an alkyl or aryl sulphonyl radical, and where R1 and R2 may, together with the nitrogen to which they are attached, form the radical of a dicarboxylic acid cyclic imide or a carboxylic sulphonic acid cyclic imide radical.  They are prepared by reacting a thiophosphoric acid <FORM:0878663/IV (b)/2> or a salt thereof with an N-halo-amide or imide of formula <FORM:0878663/IV (b)/3> Inert solvents may be used.  The products are insecticides (see Group VI) and may be used in the rubber industry.ALSO:Insecticidal compositions comprise thiophosphoric esters of formula <FORM:0878663/VI/1> where Y is oxygen or sulphur, R is alkyl, cycloalkyl or phenyl, R1 is an alkyl or aryl carbonyl, alkoxy or aryloxy carbonyl, alkyl or aryl sulphonyl, alkyl or aryl or alkaryl amido, cyano or aldehyde radical, R2 is hydrogen, alkyl or aryl or may be the same as R1 when R1 is an alkyl or aryl carbonyl or an alkyl or aryl sulphonyl radical, or R1 and R2 may, together with the nitrogen to which they are attached, form the radical of a dicarboxyl acid cyclic imide or a carboxylic sulphonic acid cyclic imide.  Conventional solid and liquid carriers may be used.  Other insecticides and/or fertilizers may be present.
Patent GB-1088797-A (GB)
Title: Fluid pressure semi-rotary vane actuator
IPC: F16K31/12
Filed: 1965-01-07
Abstract: 1,088,797. Oscillating vane actuators. JAMESBURY CORPORATION. Jan.7, 1965 [Jan.7, 1964], No.805/65. Heading F1F. [Also in Division F2] An oscillating vane actuator for positioning a ball or plug valve, Fig. 1 (not shown), comprises on either side of a fixed abutment 52, Fig. 2 stop-blocks 72 which may be adjusted with respect to the abutment by cap screws 74 to ensure that in the extreme positions of the oscillating vane 40 there is a full passage opening through the valve. A flow passage 104 through each block which is connected to connections 68 through which pressure fluid may be alternatively supplied and exhausted is fitted with a resilient sealing member 112 to prevent the escape of fluid from the annular actuating chamber on the downstream side of the vane. Corner abutments 116 on the block prevent undue deformation of the sealing members 112. A rectangular ring 58 backed by a resilient element 60 provides a seal between the hub portion 54 of the vane and the body 32. A rectangular element 42 backed by a resilient member 44 and a centre plate 46 fitted in a slot in the vane seals the vane with respect to the body 32.
Patent GB-586277-A (GB)
Title: Improvements relating to jet-propulsion, internal-combustion, turbine plant
IPC: F02C7/04
Filed: 1942-06-17
Abstract: 586,277. Jet propulsion gas turbine plant. ARMSTRONG SIDDELEY MOTORS, Ltd., VOCE, J. D., EVANS, D. R., and HEPPNER, F. A. M. June 17, 1942, No. 823/43. Divided out of 585,338. Drawings to Specification. [Classes 110 (i) and 110 (iii)] In a jet-propulsion plant, in which an axialflow compressor is driven by a gas turbine and the compressor is furnished with a leak-off valve by which stalling of the compressor. is prevented, the air passed by the leak-off valve is delivered to the propulsion jet. In plant comprising, also, a jet-augmenter the air is delivered to the latter. Specification 585,338 is referred to.
Patent GB-534313-A (GB)
Title: Improvements in or relating to surface heat exchangers of the built-up type
IPC: F28F3/08
Filed: 1940-01-15
Abstract: 534.313. Plate heat exchangers. ALUMINIUM PLANT & VESSEL CO., Ltd., and GOODMAN, H. F. Jan. 15. 1940, No. 847. [Class 64 (iii)] Fluid is conducted to or from a heat exchanger at a point intermediate its ends by a tube b supported by an end closure member a and extending through ports in the heat-exchange plates b<1>. Some of the ports through, which the tube passes are closed by baffles m in order to direct the fluid through the spaces between the plates in a sinous course. The annular space between the tube and a surrounding sleeve g may serve as the inlet or outlet passage.
Patent GB-468763-A (GB)
Title: Interference eliminating apparatus for radio receivers
IPC: H04B1/12
Filed: 1936-01-10
Abstract: 468,763. Transformers. GALVIN MANUFACTURING CORPORATION. Jan. 10, 1936, No. 881. Convention date, Jan. 10, 1935. [Class 38 (ii)] [Also in Group XL] In a high-frequency transformer used for balancing out ignition interference on aeroplanes &c., each coil 15, 16 is in the form of a double helix, Fig. 4, compressed to a flat double layer, the coil 16 being mounted on geared screws 49, 50 so that the coupling may be varied. The coils are separated by an electrostatic screen 17 consisting of a comblike member, Fig. 10, the teeth 54 being connected at one end and twisted at an angle of about 45‹.
Patent GB-554759-A (GB)
Title: Improvements in and relating to extractor ventilators
IPC: F24F7/02
Filed: 1942-01-22
Abstract: 554,759. Ventilators. GREENWOOD'S & AIRVAC VENTILATING CO., Ltd., HUGHES, B. D., and FORD, E. L. Jan. 22, 1942, Nos. 943, 2476 and 14806. [Class 137] In an extractor ventilator, a short stack pipe 1 extends from a base plate 12, and has arranged above it one or more dome shaped elements 4, which may be apertured, surmounted by a dish shaped cover 5 the peripheral edge of which is reversely curved at 7, a cylindrical or conical deflector band 9 being provided optionally with an outwardly flared edge 11, and a horizontal surge plate 2 being mounted on the stack pipe. In Fig. 3, the dome shaped element 17 is unapertured, and a vertical deflector surge plate 18 is provided, mounted on the base plate 12. In Fig. 6, a surge plate 23 of conical form is secured to the stack pipe 1, and a horizontal water baffle plate 24 extends inwardly from the lower edge of the vertical deflector band 9 to near the stack pipe. In Fig. 7, the stack pipe 1 has above it an apertured dome shaped element 4, an unapertured element 17, and the cover 5, surrounded by an inner deflector 25, and a pair of outer conical deflectors 26, 27, the stack having mounted on it a surge plate 28.
Patent GB-157104-A (GB)
Title: Improvements in electric resistances
IPC: H01C3/20
Filed: 1921-01-08
Abstract: 157,104. Behn, (nÚe Eplinius), H. Jan. 3, 1916, [Convention date]. No Patent granted (Sealing fee not paid). Wire and ribbon resistances, mounted on frames; threaded. - A number of wires d are wound on a frame consisting of slotted bars b radiating from a central member c. The wires thus form the equivalent of a band wound on edge. The slots a in the bars b may be at right-angles to the member c or they may slope as shown in Fig. 2 to cause the wires to form a helical surface. The ends of the wires are clamped between radiating members e and a plate g both insulated from the core c by a bush f. The bars b may be of insulating material or of metal having the slots insulated. The distance between the slots and their inclination may vary from winding to winding.
Patent GB-488993-A (GB)
Title: Improvements in or relating to the sealing of electrical conductors into envelopes of quartz or the like
IPC: H01J5/32
Filed: 1937-01-12
Abstract: 488,993. Sealing leading-in conductors. SCOPHONY, Ltd., and BARASCH, H. P. Jan. 12, 1937, No. 971. [Class 36] [Also in Group XI] A conductor in the form of thin metallic ribbon is sealed into a refractory vitreous envelope by winding the ribbon helically around a rod of a material having substantially the same coefficient of expansion as the material of the envelope and of cross-section very slightly less than the inner cross-section of a portion of the envelope, inserting the rod and ribbon into said portion and fusing together said rod and said portion. A molybdenum ribbon 19 is wound round a quartz rod 13 and secured at its ends to a tungsten wire 18 and a tungsten electrode 15, the latter carrying a quartz sleeve 16. The wire 18 and electrode 15 may be inserted in holes at the ends of the rod 13 or, as shown, in a hole extending throughout the length of the rod, the hole being constricted at 14 and containing a thin quartz rod 17. The rod 13 and sleeve 16 are fused in a capillary tube forming part of the quartz envelope of a high pressure mercury vapour discharge tube.
Patent GB-762779-A (GB)
Title: Improvements in contour or profile gauges
IPC: G02B21/00
Filed: 1954-01-13
Abstract: 762,779. Profile gauges. WATSON, MANASTY & CO., Ltd., and SIBTHORP, A. N. Jan. 12, 1955 [Jan. 13, 1954], No. 973/54. Class 106 (2). A profile gauge comprises a plurality of flat parallel laminae 10 adapted to slide over one another and to be brought into contact at one end 15 with the surface to be gauged, together with means for optically projecting images of like reference points 20 on. the edges of the laminae 10 on to a screen 41 to provide a reproduction of the profile of the surface engaged by the ends 15 of the laminae. Each lamina, Fig. 4,.is bevelled at 14 and has a short contacting surface 15, being provided at the other end and on one side with a laterally projecting ear 16. The distance between the contacting surface 15 and the surface 17 is constant for every lamina. The surface 18 is polished to reflect light. The laminae, which are mounted on a bar 19 passing through slots 13, slide parallel to themselves on the bar, and are held in place by stops 21, 22. Each set of laminae can be moved into contact with the surface to be gauged by means of an electromagnet, one beneath each set. Where the surface to be gauged is concave the set is moved from a position of rest against an arcuate stop 33, 34, the radius of curvature of which is less than that of the surface to be gauged, thus ensuring that the central laminae register first with the concave surface, at the same time as the corresponding laminae of the other set, eliminating distortion of the article 24 under test. A work-table 36, mounted in front of a cabinet 35, supports the article under test. Two sets of laminae 11, 12 move inwardly from opposite sides of the worktable to engage opposite faces of the article. Two sources of light (not shown) each direct light through a condenser (not shown) on to one group of laminae to illuminate the surfaces 18 whose edges 20 are reference points. Two lenses 39 each receive reflected light via prisms 38 and the images of the profiles are reflected from a mirror 42 on to a screen 41. The Specification describes other methods of moving the laminae and other optical systems for the reproduction of the profile of the surface.