baber/WOPTO huggingface dataset:
Patent GB-338207-A (GB)
Title: Improvements in taps for fluids
IPC: B67D3/04
Filed: 1929-08-16
Abstract: 338,207. Phillips, C. S. Aug. 16, 1929. Sliding tubular valves. - A tap comprises at least three telescoping tubular members, one at least of which is provided with an aperture or apertures which, after said members have been extended relatively to one another, affords a free passage for the flow of fluid through the tap. Three tubes a, b, c are arranged concentrically, the tube a being open-ended 'and fixed at a<1> to the container A, said tube also having a slot a<6>, a<3>, a<4> engaged by a pin c<3> on the inner tube c, and another slot a<5>, a<2> engaged by a pin b<4> on the middle tube b, which pin also extends inwardly to engage a slot c<1> with a cam extension c<2> in the inner tube c. The middle tube b also has an outlet aperture b<3>. In the closed position in Fig. 1, the pins c<3>, b<4> are in the cam extensions a<6> on the tube a and in the cam extensions a<5>, c' on the tubes a and c respectively, thus compressing the washer b<2> on the tube b. Slight rotation of the tube b by the handle b<7> of a knob b' releases the pressure on the washer b<2>, and an axial movement causes the tubes b, c to move together, the pin c<3> moving in the slot a<3>, the outward projection of the pin b<4> moving in the slot a<2> and the inward projection of the pin b<4> engaging the cam extension c' of the slot c<1>, thus locking the tubes b and c together. On the pin c<3> reaching the slot a<4>, further axial movement causes a slight rotation of the tube c, thus disengaging the inward projection of the pin b<4> from the cam extension c<2> and locking the tube c to the tube a. Still, further movement extends the tube b fully, as in Fig. 4, and uncovers the outdet port b<3>. In the closing movement the above operations are reversed, and the tubes nest up closely to the container, as shown in Fig. 1. In a modification, the slots a<3>, a<4>, a<6> and c<1>, c<2> are dispensed with, the tube c being split longitudinally and carrying a. pin which presses against the tube a and locks the tubes b, c together by friction until said pin engages an aperture in the tube a, when the tube b is free to move relatively to the tube c. In another modification, the knob b<1> and outlet aperture b<3> are in the tube c, which is adapted to be extended fully in the open position of the tap. Spring means may be used for returning the tap to the closed position after use, or the tube a may be closed at the inner end and an aperture provided in each of the three tubes, the apertures in the tubes b, c registering only when clear of the wall A of the container.
Patent GB-378670-A (GB)
Title: Improvements in or relating to decomposing raw phosphates
IPC: C01B25/22
Filed: 1931-09-08
Abstract: In the decomposition of raw phosphates with sulphuric acid, or with another acid with simultaneous or subsequent addition of the sulphuric acid radicle, the reaction mass is subjected to such a solution vapour pressure that the calcium sulphate present as semihydrate and/or anhydrite becomes sufficiently stable to permit washing or treatment with water, diluted phosphoric acid &c. without substantial change of the contents of water of hydration.  The heating may be carried out in the presence of added phosphoric acid or previously produced reaction mass containing it, and the required temperature may be ascertained from the relation 2p + t = at least 186, where p is the percentage of P2O5 by weight present, and t the temperature necessary.  By having a sufficient concentration of phosphoric acid, the decomposition and stabilization may be carried out in an open vessel; for instance the phosphoric acid added may contain at least 36 per cent by weight of P2O5 and at least as much be added as is formed in the decomposition.  The addition may be made to the raw phosphate and reaction be effected therewith prior to addition of sulphuric acid.  In effecting decomposition with sulphuric acid, excess acid may first be used at the temperature of stabilization, and then further raw phosphate be added; or the excess sulphuric acid may be added to reaction mixture already produced, and the temperature be then raised to that necessary prior to addition of the further raw phosphate required.  By applying the process to the direct formation of superphosphate, hardening during storage is prevented or retarded.  Specification 314,976, [Class 1 (ii), Inorganic compounds, other than &c.], is referred to.
Patent GB-251521-A (GB)
Title: Improvements in wireless antennae
IPC: H01Q1/24
Filed: 1925-10-09
Abstract: 251,521. Clark, J. M. Oct. 9, 1925. Aerials.-An aerial consists of an elongated tube devoid of air and filled with a gas of relatively high conductivity and provided with a metal member centrally disposed therein and connected to terminals 20, 21. A pluralitv of tubes may be arranged to form a loop as shown in Fig. 10. The metal member may comprise a tube, an undulating strip of wire or a coil of bare wire wound on formers 11 - - 14 which may be slotted to space the wires. In a modification a tube and a coil of wire may be used in parallel. Springs may be employed to support the metal member in the tube which is preferably of glass or alternatively restrictions in the tube may be provided.
Patent GB-833184-A (GB)
Title: Improvements in or relating to the production of ª‡-glycirrhetinic acid and esters thereof
Filed: 1958-08-07
Abstract: a -Glycirrhetinic acid or an ester thereof is prepared from 3-oxo-a -glycirrhetinic acid or an ester thereof by isomerizing it with acid or alkali, preferably HCl-acetic acid, and then reducing the resulting 3-oxo-a -glycirrhetinic acid, preferably with a metal hydride, e.g. sodium borohydride.  3-Oxo-b -glycirrhetinic acid itself may be prepared by oxidation of commercial b -glycirrhetinic acid.
Patent GB-273129-A (GB)
Title: Improvements in and relating to junction boxes for the surface wiring of electrical distributing systems
IPC: H02G3/08
Filed: 1926-10-12
Abstract: 273,129. Sloane, W. A., and Liverpool Electric Cable Co., Ltd. Oct. 12, 1926. Ceiling, wall, and other fittings tor installation connections.-The cover b is adapted to screw on to the base a, which is apertured in a number of places to receive the cables d, which are secured by bushes f when the cover is screwed home. Owing to the interengagement between shoulders g, h on the bush and base respectively, the bushes are prevented from falling out when the box is fitted in an inserted position. Also, when it is not desired to admit a cable, the bush may be inserted in the corresponding aperture, with its shoulder i engaging the shoulders h, so covering up the aperture. Positioning shoulders l on the base ensure that the bushes all occupy the same relative positions in the apertures. In the case of insulated cables, the box is of moulded insulation and the bushes are of hard rubber, whereas with metal-sheathed cables the box is of leadantimony or similar metal and the bushes of conducting material. Additional protection may be provided for effectively sealing off the paper insulation of paper-insulated cables. The cover is stated to be such as to admit of the addition of extra fittings for pendants, switches, or like accessories.
Patent GB-408147-A (GB)
Title: Improvements in hoods for vehicles
IPC: B60J7/12
Filed: 1933-09-14
Abstract: 408,147. Vehicle hoods. DAIMLERBENZ AKT.-GES., Untertiirkheim, Stuttgart, Germany. Sept. 14, 1933, No. 25517. Convention date, Sept. 14, 1932. [Class 108 (i).] Vehicle hoods, preferably folded up in closed position, are raised and lowered by means of two or more parallel rocking levers. The rear hoops 2 are carried by two rocking levers 1 pivoted to the body and are raised and lowered together with the hood closed in bundle fashion preferably in a parallel manner. Locking means comprising a wedge or cone 4 on one lever 1 engaging a spring clip 6 on the other lever are provided to retain the hood in the raised position. Toggle &c. means operated by lever 8 are provided for releasing the locking means.
Patent GB-356453-A (GB)
Title: Improvements relating to guards for presses and other like machines
IPC: F16P3/06
Filed: 1930-08-27
Abstract: 356,453. Controlling machinery guards. UDAL, J. P., 91, Oakfield Road, Selly Park, Birmingham. Aug. 27, 1930, No. 25557. [Class 80 (iv).] In guards for presses &c. of the kind having a main guard-member b, c, i pivoted on the machine frame to swing outwardly and a secondary guardmember f, g, h pivoted on the main member, the secondary member alone is positively driven from a moving part of the press &c., the main part being moved against gravity or a spring d only if the operator's hand is trapped between the bars h, i of the two members, the actuating-linkage being preferably designed to impart greater movement when the hand is so caught. In one form, an arm m on the crank shaft n drives through a link o a bell-crank lever p, q of adjustable angularity mounted on the pivot a of the main guard-part b &c., the lever-arm q being connected by a link r to the secondary part f &c. The links are so proportioned that normally, when the part f &c. swings freely through the part b &c., as shown in Fig. 2, the links q, r come into alignment, but if the hand is caught, causing movement of the main guard-part, the links q, r are not aligned, whereby greater movement is imparted, as shown in Fig. 3. The member b &c. is held in its idle position by an adjustable stop x contacting with the machine frame under the spring d. In a modification, Figs. 4-6 (not shown), motion is taken from a bracket on the slide k by similar linkage, which may be augmented for larger guards by an intermediate bell-crank lever pivoted on one of the side-members b and linked to the secondary guard and bell-crank lever p, q.
Patent GB-208598-A (GB)
Title: Improvements in and relating to variable electric condensers
Filed: 1922-09-21
Abstract: 208,598. Crowther, F. K., and Radio Communication Co., Ltd. Sept. 21, 1922. Condensers.-A variable condenser comprises two or more parallel flat plates separated by springs insulated from one or both sides of the condenser, the separation between the plates being adjustable by means of a screw, cam or the like. In one form, Fig. 3, the springs consist of fingers or projections B bent up from one of the plates E, the ends of the fingers bearing on mica sheets M secured to sheets C, D of copper foil or the like. The sheets C, D are mounted on plates F, G, being separated therefrom by sheets 0 of presspahn or other resilient material. The plate G is mounted on rods Q and can be adjusted bv rotating a spindle L carrying a threaded collar H in engagement with a threaded bass K on the plate. In the arrangement shown in Fig. 4, the central plate E is covered on both sides with mica sheets, and bowed springs A', B<1> are placed on each of the outer plates. In another arrangement, spiral springs are used to separate the plates.
Patent GB-500985-A (GB)
Title: Improvements in lever control mechanism for cables of cycles, motor-cycles and the like
IPC: B62M25/04
Filed: 1937-09-22
Abstract: 500,985. Control levers for cycles &c. CAMILLIS, L. Sept. 22, 1937, No. 25668. [Class 136 (i)] Lever mechanism for actuating a Bowden cable on motor and other cycles &c. comprises a pulley revolubly mounted on a rigid peg on one part of a two-part clip, between a bearing shoulder and a spring pressure plate -fitted with a screw to vary the friction on the pulley, and is characterized in that such part of the clip is provided with a lateral extension adapted to carry a stud forming an anchorage for an end ferrule of a Bowden cable, and with a projection constituting a stop for the control arm or lever. The attachment clip is formed of two semicircular parts hooked together at one end and bolted together at the other, one part 2 having riveted to it a peg 1 on which is fixed a plate 4 forming a bearing shoulder for a disc or pulley 5. which is rotatably mounted on the peg 1. and is rigid with an actuating-arm 23. The inner cable 14 is located in a groove 7 in the pulley 5, its end being threaded thro.ugh a chord-like hole 19 and fixed by a radial set-screw 20. The pulley 5 is subjected to adjustable frictional constraint by means of a washer 8' non-rotatably mounted on the peg 1, a spring pressure plate 10 and a screw stud 13. The clip member 2 is formed with a lateral extension 15 to which is riveted a stud 16 having a screw-threaded hole to receive the anchoring ferrule 18 of the Bowden casing. A second lateral. extension 21 of the clip member 2 is provided with a bent-up projection 22 forming a stop for the control arm 23 in one direction, the extension 15 forming a stop in the other direction.
Patent GB-815439-A (GB)
Title: Improvements in and relating to surfacing materials for temporary tracks or roads
Inventor: MILLAR WILLIAM ISAAC
IPC: E01C9/08
Filed: 1956-08-22
Abstract: 815,439. Road &c. surfacing panels. EXPANDED METAL CO. Ltd. Aug. 21, 1957 [Aug. 22, 1956; April 4, 19571. Nos. 25706/56 and 11068/57. Class 107 A surfacing panel consists of corrugated sheet metal reinforced on 'both sides with expanded metal. As shown, the panel consists of two corrugated sheets 1, 2 superimposed one upon the other and welded together with their corrugations mutually at right angles, and layers 7, 8 of flattened expanded metal welded to said sheets so that the mesh is at right angles to the corrugations. The sheets are made to overlap so that identical panels may be nested together and joined by means of self-tapping screws. According to the second Provisional Specification, the overlapping portions may be reinforced with additional metal. The first Provisional Specification refers to the joining of adjacent panels by means of interfitting fixing clamps.
Patent GB-302424-A (GB)
Title: Improvements in electric lighting systems for road vehicles
IPC: G04C23/16
Filed: 1928-01-24
Abstract: 302,424. Sanderson, J. B. Jan. 24, 1928. Controlling consuming devices.-The lighting circuit of a road vehicle is automatically and directly controlled by switch mechanism incorporated in the body of, and behind the dial of a clock and in constant operation with the clock movement. The clock movement may operate a brush contact or actuate a switch. The mechanism may be arranged to operate once only for each setting or on successive nights so long as the clock runs and may be put out of action at any time. The lighting circuit may be arranged so that the time switch completes it only when the main switch is " off." A pinion in the dashboard clock shown in Figs. 1 and 3 drives a wheel H and attached pointer L working over a 24 hour dial to indicate forenoon or afternoon and facilitate setting the time switch when the clock has stopped. A pointer b may be set at any desired time by a knob h geared to a projection k, Fig. 4, co-operating with a crown cam l on a wheel n driven at the same rate as the wheel H. A spring arm p and a loose insulating collar press the cam against the projection k so that the lighting circuit, which includes the arm p and a co-operating rigid contact, is open till the low part of the cam snaps against the projection k; the length of the illumination period depends upon the length of the low portion of the cam. Unless the pointer b is moved the switching operation will be repeated so long as the clock runs. Any suitable form of switch may be used. A brush contact mechanism is shown in Fig. 7, the wheel n being non-conducting and having an arcuate metal insertion v adapted to connect brushes w on each side of the wheel which are set by the pointer b. These brushes may be relatively adjusted to vary the lighting interval, a second pointer being used and the knob h being axially displaceable to adjust either pointer. Stops may prevent the starting pointer and stopping pointer being moved into A.M. and P.M. positions respectively. In another form a cam has three concentric parts movable in relation to one another to vary the length of the lighting period. Another alternative construction of cam mechanism is described in two forms with a single pointer and two pointers respectively. Fig. 5 shows a circuit arrangement wherein the main switch N in position 3 lights a parking light s controlled by the clockwork mechanism. The leads include a plug T with long and short pins which cooperate with a socket U having an element t, t' between the parts of which a resistance is connected so that this resistance may be inserted at will in the circuit by reversing the plug.
Patent GB-689888-A (GB)
Title: Improvements in production of phonographic discs
Filed: 1951-11-05
Abstract: 689,888. Gramophone records. AUDIO DEVICES, Inc. Nov. 5, 1951 [May 11, 1951], No. 25843/51. Class 40 (ii). A punchable insert 34 (Fig. 2), which is to form the central portion of an otherwise fracturable gramophone disc, comprises a mid-layer 20, made e.g. of paper, cardboard or the like, rendered impervious to moisture and coating liquid by impervious covers 14, 22 of metal foil stuck to it. Cover 22 is made oversize and so has an outer annular edge 30 to enable the insert to be stuck to the inner annular, edge portion of fracturable base 40 (Fig. 6). Coatings 50, 52 (in that order) of sound recording lacquer are applied to the base-insert assembly, coating 50 extending into the annular space 44. When these coatings have dried, the insert is drilled or punched with mounting holes. Both of the impervious covers 62, 68 (Fig. 12) may be made oversize having outer annular portions 66 and 72, respectively, stuck to the base 76. Coatings 84 and 85 of the recording lacquer are then applied. In a modification the plug 92 (Fig. 14) made, as above, e.g. of cardboard or fibre, has its surfaces treated with a suitable material, e.g. polyethylane, to render them impervious. Adhesive annuli 93 and 94 bind the insert to the fracturable disc base 96. Specification 689,889 is referred to.
Patent GB-932161-A (GB)
Title: Improvements in or relating to pathological or sterility test equipment
Inventor: RICE HUGH MACAN
IPC: G01N1/22
Filed: 1958-08-12
Abstract: <PICT:0932161/III/1> Air to be tested, for example for bacteria, enters sampling chamber 12 at connection 19 and the coaxial cones 20 direct the air on to a Petri dish 21.  The dish is easily removed through the easily removable base plate 22.
Patent GB-978401-A (GB)
Title: Combination valet and seat
IPC: A47C7/64
Filed: 1963-06-28
Abstract: 978,401. Seats combined with coathangers. GLEITSMAN'S Inc. June 28, 1963, No. 25878/63. Heading A4H. A seat combined with a silent valet has a seat member 12 supported by a frame 14 having legs 16, 18 so as to leave a clearance between the rear of the seat 12 and rear legs 18, and the seat backrest has an upper formation 34 forming a coat hanger on which a jacket J may be hung. An elliptical formation 50 supported on a rod 48 forms a support for trousers and a rack for ties or belts and a shoe rack 62 has its legs inserted in holes in bottom rails 20. Cuff links &c. may be placed in a tray 64.
Patent GB-1196747-A (GB)
Title: Improvements relating to Control Knobs.
Inventor: PHILLIPS WILLIAM
IPC: G05G1/12
Filed: 1967-06-05
Abstract: 1,196,747. Securing knobs on spindles. PLESSEY CO. Ltd. 31 May, 1968 [5 June, 1967], No. 25908/67. Heading F2U. A hollow, moulded plastics, control knob in rotary drive connection with a spindle end 5 is axially retained thereon by a metallic retaining member 3 which is moulded into the periphery of the knob blind bore 2 and snaps into a spindle groove 4. Where the knob is of hard plastics (e.g. polysulphone) the member 3 may be a circlip as shown, or where the knob is of soft flexible plastics (e.g. acrylonitrile butadiene styrene) the member may be triangular (Fig. 2, not shown) the triangle corners being deeply embedded in the knob. The rotary drive connection may be a diametral web formed in knob and engaging a slot 7 in the spindle end as shown. Alternatively, to eliminate backlash, the slot 7 may be engaged by a spring metal (e.g. beryllium copper) member embedded in the base of the knob bore, such member comprising a U-shaped member (Fig. 3a, not shown) having its legs so splayed as to engage opposite sides of the slot, an M-shaped member (Fig. 3b, not shown) having its legs and centre protrusion respectively engaging said opposite sides, or a wavy strip (Fig. 3c, not shown). In a further embodiment, the slot 7 is engaged by one or two balls trapped in tapered grooves axially extending in the knob bore. In Figs. 4, 5 (not shown) a D-shaped hardened steel clip 14 is moulded in the knob bore such that its straight side engages a flat on the spindle.
Patent GB-600114-A (GB)
Title: Improvements in and relating to the synthesis of derivatives of stilbene and di-benzyl
IPC: C07C43/205
Filed: 1945-10-05
Abstract: Compounds of the general formula <FORM:0600114/IV(b)/1> in which R1, R2, R3, R4, R5 an R6 are each hydrogen or an alkyl group, and R1 or R3 or both R1 and R3 is or are an alkyl group or groups are obtained by carrying out a Grignard reaction upon the corresponding desoxybenzoin derivative to form the corresponding tertiary carbinol and if the dihydroxy compound is the desired product, followed by dealkylation.  The corresponding dibenzyl derivatives are obtained by the hydrogenation of the dialkoxystilbene or dihydroxystilbene formed as above and if desired followed by dealkylation or by the direct reduction of the desoxybenzoin derivative.  In examples: (1) 2-methyldesoxyanisoin is reduced with amalgamated zinc and concentrated hydrochloric acid to produce 2-methyl-4 : 41-dimethoxy-dibenzyl which is demethylated to produce 2-methyl-4 : 41-dihydroxydibenzyl; (2) ms : 2-dimethyldesoxyanisoin is treated as in example (1) to produce b  - 2-dimethyl - 4 : 41 - dimethoxydibenzyl and b  : 2-dimethyl - 4 : 41 - dihydroxydibenzyl; (3) 21-methyldesoxyanisoin is treated with a Grignard reagent and the product heated to produce b  : 2 - dimethyl - 4 : 41 - dimethoxystilbene which is hydrogenated in the presence of palladized charcoal to the corresponding dibenzyl derivative; (4) b -ethyl-2-methyl-desoxyanisoin is converted by means of a Grignard reagent followed by dehydration of the product with phosphorous tribromide to b -ethyl-a  : 2-dimethyl-4 : 41-dimethoxystilbene which is demethylated to the corresponding dihydroxystilbene.  The corresponding dibenzyl compounds are obtained by hydrogenation; (5) ms : 2 : 21 - trimethyldesoxyanisoin is treated with a Grignard reagent and the product is dehydrated to produce a  : b  : 2 : 21-tetramethyl-4 : 41-dimethoxystilbene which on demethylation gives the corresponding dihydroxystilbene; (6) a  : b  : 2 : 21 - tetramethyl - 4 : 41 - dimethox - stilbene is hydrogenated in the presence of palladized charcoal to produce the corresponding dimethoxydibenzyl derivative which on demethylation gives the dihydroxydibenzyl derivative.  2-Methyl, 21-methyl and 2 : 21-dimethyldesoxy-anisoin are obtained by condensing the corresponding 4-methoxyphenylacetyl chloride with the corresponding anisole in the presence of aluminium chloride.  ms : 2 - Dimethyl and b -ethyl-2-methyl-desoxy-anisoin are obtained by heating a solution of 2-methyldesoxyanisoin in ethanol with sodium ethoxide and methyl or ethyl iodide. 2-Phenyl-4-(21-methyl-41-methoxy-benzal)-5-oxazolone is obtained by heating together 2-methyl - 4 - methoxy - benzaldehyde, hippuric acid, sodium acetate and acetic anhydride.  Methyl - 2 - methyl - 4 - methoxyphenylacetate is obtained from the oxazolone above by treatment with caustic soda followed by oxidation with hydrogen peroxide and esterification.  2 - Methyl - 4 - methoxyphenylacetic acid is obtained by hydrolysing the ester above.  The acid chloride and amide are obtained on treatment with thionyl chloride and ammonia respectively.