baber/WOPTO huggingface dataset:
Patent GB-1469646-A (GB)
Title: Method for the production of pipe lengths of varying cross- section of thermoplastics material and apparatus for carrying out the method
IPC: B29C48/13
Filed: 1974-03-19
Abstract: 1469646 Moulding reducing and connecting pipes GRANGES ESSEM PLAST AS 19 March 1974 [19 March 1973] 12130/74 Heading B5A A method for producing reducing or connecting pipes and pipe fittings comprises passing a tube 13 extruded from a die 1 through a temperature-controlled sizing die 8 composed of sections, e.g. 8-8<SP>11</SP> of different cross-sections and inflating the tube against at least one of the sections 8-8<SP>11</SP>. Various sections of the sizing die may be brought into operation by either sliding the sizing die over the extrusion die (see Fig. 1a, for example) and/or by controlling the temperature of a section to thereby control the plasticity of the tube. The sections of the sizing die may either rotate relative to one another (as disclosed for example with respect to Figs. 4-6, not shown) and/or move relative to one another along the axis of the die. Each section may comprise a plurality of segments each of which has its temperature individually controlled. The wall thickness of or formation of flanges (15<SP>1</SP>, Fig. 3) on the tube may be controlled by varying the haul-off and/or extrusion rate from the die 1. The sections of the die may be circular (as shown) or non-circular (Figs. 4-6) in cross-section and may be interconnected by straight portions 7 or tapered portions (14<SP>11</SP>, Fig. 2). The tube may be cut down-stream of the sizing die to form individual pipe fittings. Tubing having socket portions (Fig. 1c), flanges (15<SP>1</SP>, Fig. 3) and flat portions (17<SP>1</SP>, Fig. 7) for T-pieces is described.
Patent GB-329787-A (GB)
Title: Improvements in muffle furnaces
IPC: F27B5/00
Filed: 1929-04-19
Abstract: 329,787. Gibbons Bros., Ltd., and Bridgford, T. E. April 19, 1929. Muffle furnaces.-The roof and side walls of a muffle are formed by transversely arranged parallel tubes, 2, 4, 5, which communicate with a flue passage beneath the floor, and are spaced from the enclosing walls 28, 29 of the furnace. In the construction shown combustion products from a fireplace and hot secondary air are supplied to the space beneath the roof 29 and enter the flue system of the muffle through the apertures 9 in the arched roof flue 2, from which they pass down the side flues 5, across the floor, and up the flues 4 to the downcast flue 10, horizontal floor flues 11, and the waste flue 12. The secondary air is heated in fires alternating with the flues 11 and in wall flues 14. The roof and wall flues of the muffle are spaced apart, and are built up of short lengths of the tapered section shown in Fig. 6, and having interengaging ends and panelled walls. The roof flues are spaced apart by grooved bricks 20 adapted to engage the edges of the two adjacent sections, and the spaces between these bricks are filled in by blocks 37 supported on the recessed edges 39 of the roof sections. The floor of the muffle is constructed in the manner described in Specification 296,936.
Patent GB-472534-A (GB)
Title: Improvements in or relating to aerial structures and arrangements
IPC: H01Q21/10
Filed: 1937-04-28
Abstract: 472,534. Aerials. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. April 28, 1937, No. 12171. Convention date, April 28, 1936. [Class 40 (v)] Relates to aerials of the type shown in Fig. 1 in which outer tubes, such as a, b, c, alternate with centre conductors d, e, f, and consists in the provision of at least one continuous hollow space in which an auxiliary feed-line can be placed and screened from the adjacent highfrequency currents. In Fig. 2, the arrangement gives one such screened space k, whilst in Fig. 3 there are two k<1>, k2. These can be used to supply current, say to a signal lamp mounted on top of the aerial, without affecting the radiation field from the latter. As shown in Fig. 6, the screened space k encloses the feedline v for a second aerial w mounted on top of the first or main aerial A, and operating on a different wavelength. A plate m serves to decouple the two aerials. This arrangement can be used either to transmit or receive two different waves simultaneously, or to transmit on one wavelength and receive on another.
Patent GB-1047865-A (GB)
Title: Hair dryer cap
IPC: A45D20/18
Filed: 1964-03-23
Abstract: 1,047,865. Hair drying appliances. SUNBEAM CORPORATION. March 23,1964 [June 17, 1963], No. 12209/64. Heading A5R. A hair dryer cap comprises two flexible plastic layers each in the form of a closed head cover and sealed to each other along their bottom edges, the inner layer being perforate, and an air inlet opening in the outer layer for the admission of drying air to the space between the layers. Two sheets 1, 2 forming the cap are co-extensive, the apertures in the inner sheet being greater in number per unit area in regions remote from exhaust openings 6 formed near the lower edge of the rear of the cap and in the forehead portion. Heated air is supplied to space 3 between the layers by a hose 4 connected to the outer sheet. An elastic band 7 is stitched to the lower edge of the front and sides of the outer sheet and, in use, the cap is tightened about the head by draw strings 8 at the rear, lower edge of the cap being turned under in wear, so that the elastic band, which is covered in soft material, contacts the head. The portions of the sheets forming the lower edge of the cap are imperforate and are heat-sealed together along spaced seams to define a channel for the drawstrings and portions 14, 15, 16 which, in use, tie over the ears and bone portions of the head below the hairline. The portions 14, 15, 16 are separated from the space between the layer by the seams and thus do not become hot. In making the cap from two flat sheets of material, the portions of the peripheries of the sheets which do not form the lower edge of the cap are heat-sealed together along a double seam. Portions of this double seam are sealed together to form two darts which shape the cap and which diverge from the forehead to the crown. The cap is larger than the head so that, when the manifold is inflated, the perforated portion of the inner sheet lies closely against the hair and the imperforate portions 14, 15, 16 stand away from the head. Reference has been directed by the Comptroller to Specification 972,867.
Patent GB-1096542-A (GB)
Title: Improvements in and relating to the chlorination of polyethylene
IPC: C08F8/20
Filed: 1965-03-23
Abstract: Flexible and extensible chlorinated linear polyethylene of molecular weight below 500,000, substantially all of which is soluble in aromatic hydrocarbon solvents and which is substantially free of crystallinity and contains 20-60% by weight of chlorine, is prepared by chlorinating particles of polyethylene, melting between 125 DEG and 145 DEG  C. and having an intrinsic viscosity in decalin at 135 DEG  C. from 0.7 to 3.5 dl./g., in an aqueous slurry containing not more than 20% by weight of said particles, with chlorine fed at a rate not above 5 parts by weight of chlorine per hour per part by weight of polyethylene starting material, first at a temperature of at least 100 DEG  C. but not above 120 DEG  C., and then, to introduce the last 1 to 15% of combined chlorine based on the weight of the final chlorinated polyethylene, at a temperature at least as high as the upper limit of the melting range of the polyethylene starting material but not above 145 DEG  C.  In a modification, only part of the last 1 to 15% of chlorine is introduced at the upper limit melting range temperature or above, the remainder being introduced at a lower temperature; furthermore this can be effected alternately, above and below said limit.
Patent GB-158209-A (GB)
Title: Improvements in undercarriages for vibrating wing flying machines
IPC: B64C25/00
Filed: 1920-05-04
Abstract: 158,209. Tekniske Forsogsaktieselskab. Jan. 29, 1920, [Convention date]. Land wheels.-Flying-machines, with flapping wings, are mounted on undercarriages which are sufficiently tall to permit movement of the wings when starting, but are adapted to be collapsed or folded during flight and for landing. Fig. 2 shows, in its folded position, a landing carriage formed of pivoted steel tubes. Alternatively, the landing carriage may be made telescopic, or constructed on the lazy-tongs principle.
Patent GB-993159-A (GB)
Title: Writing instrument
IPC: B43K1/08
Filed: 1962-03-30
Abstract: 993,159. Reservoir pens. PARKER PEN CO. March 30, 1962 [April 7, 1961], No. 12310/62. Heading B6P. A ball-point pen comprises a socket 12 communicating with a reservoir (not shown) and a ball 11 rotatably mounted in the socket. The socket comprises an annular seating against which the ball is forced during normal use, an annular groove 18 to prevent ink starvation of the ball, spaced outwardly of the seating, and communicating. with the reservoir via a number of grooves 16, a continuous metering ring . 20 in engagement with the ball. The annular groove 18 is between the seating and ring 20. A continuous annular retaining lip is in substantial engagement with ball, and a collector groove 28 between the ring 20 and lip. As the ball rotates in use, ink adheres to the ball in the vicinity of the groove 18, the clearance between the ball 11 and ring 20 determines the thickness of the ink layer. The collector groove 28 is normally only partially filled with ink since ink is removed therefrom during rotation of the ball.
Patent GB-894754-A (GB)
Title: Expansion tanks for systems in which water is heated
IPC: F24D3/10
Filed: 1960-04-07
Abstract: 894,754. Hydraulic accumulators. STUCKLIN, P., [trading as STUCKLIN & CIE]. April 7, 1960 [April 11, 1959], No. 12318/60. Class 69 (2). [Also in Group XIII] An expansion tank c, for a central heating system in which hot water is circulated, has an air cushion formed by the enclosed air space in an annular tube such as a car tyre inner tube n. The main space of the tank c is connected by a pipe e to the water space of the system boiler and the coupling o is large to allow for introduction of the tube r.
Patent GB-121272-A (GB)
Title: Improvements in and relating to Hand Grenades, Projectiles and Mines.
Inventor: BRONDBY FRIDTJOF NIELSEN
IPC: F42B27/08
Filed: 1918-07-29
Abstract: 121,272. Brondby, F. N. July 27, 1917, [Convention date]. Mines ,marine. - Relates to percussion firing- mechanism adapted to be operated by impact in any direction, and consists in the combination with a striker of (1) a hammer or rod which is so mounted as to be able to swing like a pendulum or to move longitudinally, (2) a weight slidably mounted on the rod and pressed by a spring against a shoulder on the free end of the rod, (3) a ball inserted between concave surfaces formed on the shoulder of the rod and on the striker, (4) a percussion cap, and (5) a safety device for locking the striker. In the form shown, applied to a grenade, a weight 3 acted upon by a spring 5 is slidably mounted on a rod 4, the end of which is inserted loosely in a recess B in a shaft 7. The adjacent ends of the rod 4 and of the firing- pin 10 are cup-shaped, and interposed between them is a ball 18. A safety pin 11 normally engages in a groove in the firing-pin and is held there by a stop 6 adapted to be displaced by a relative movement of the handle and body of the grenade produced in throwing. When impact occurs, owing to the inertia of the mass 3, the rod 4 is thrust forward against the firing-pin 10 directly or through the rebound of the spring 5, or, if the rod 4 swings sideways, a wedging action is produced by the ball 18.
Patent GB-1199361-A (GB)
Title: Improvements in or relating to Digital Phase Comparators
IPC: G01R25/00
Filed: 1968-03-14
Abstract: 1,199,361. Frequency and phase comparators. AMPEX CORP. 14 March, 1968 [30 March, 1967], No. 12348/68. Heading H3A. [Also in Division G3] A phase comparator for comparing a square wave, e.g. from a tachometer, with a reference square wave, comprises three bi-stable circuits (Fig. 2, not shown) connected as a shift register which is advanced in one direction by one input and in the opposite direction by the other input. The output is taken from the middle bi-stable and comprises a sequence of " one " pulses if the frequency error is in one direction or of " zero " pulses if the error is in the other direction. Bi-stable circuits. Fig. 3. Transistors 25-27 are cross-coupled to transistors 30-32 to form a bi-stable circuit which can be switched by simultaneous input pulses applied to transistor 20 or to transistor 21 which form AND gate inputs coupled by respective transistors 28 and 33 to the bi-stable circuit.
Patent GB-185717-A (GB)
Title: Improvements relating to containers for preserved food and the like
Filed: 1922-05-03
Abstract: 185,717. Unger & Sohn, F. C. Sept. 3, 1921, [Convention date]. Vacuum closures.-The top of a container for preserved foods &c. is provided with an internal flange b supporting a packing-washer e and formed in its vertical portion with projections c which leave an opening slightly smaller than the flange of the lid d. The lid d is sprung past the projections c, which then engage the upper surface of its flange and hold it in place, the lid being sufficiently elastic to allow vapour produced during heating to escape between the projections c. To remove the lid, an annular or other indentation f or a projection is engaged by a lever.
Patent GB-977511-A (GB)
Title: Improvements in or relating to cleaning liquid dispensing systems
IPC: B67D1/07
Filed: 1960-04-07
Abstract: 977,511. Cleaning beer pipes. FLOWERS BREWERIES Ltd., and A. M. HILL. May 4, 1961 [April 7, 1960], No. 12455/60. Heading F2N. In a method of cleaning a pressure-fed liquid dispensing system including a container 10 for the liquid to be dispensed, a source of pressure 11 connected to the container, control means 15 to control the admission of pressure to the container and a liquid dispensing valve 17, the control means is removed from the container, the pressure-feed and liquid delivery pipes 14, 16 are connected together and a source of pressure-fed cleaning fluid is connected to the inlet end of the pipe 14. A connector 23, having a passage 24 therethrough, connects the pipes 14, 16 when the control means 15 is secured thereto. The pressure-fed cleaning fluid may be supplied by an electric kettle secured to the inlet end of pipe 14 or a reservoir of detergent liquid connected between the pressure reducing valve 13 and the inlet end of pipe 14. If in addition to the source of pressure a pump is used to dispense the liquid this may be by-passed during cleaning and cleaned separately.
Patent GB-119065-A (GB)
Title: Improvements in and relating to Rockets.
Inventor: ROBINSON HUGH MANSFIELD
IPC: F41F3/04
Filed: 1917-08-30
Abstract: 119,065. Robinson, H. M. Aug. 30, 917. Ordnance, design; warrocket; breech mechanism.-Consists in the combination of a stem a and a trough c for discharging rockets. The rocket is discharged by igniting its propellor charge by means of a friction tube by a pull on a lanyard or by the action of a spring. Or the rocket is given an initial impulse, and its propelling charge is ignited through a delay tube by means of a cartridge inserted in a recess at the front end of the stem a. This cartridge is ignited by any form of vent sealing tube or by a front or rear cap under the shock of a spring striker 1 when this is released by a trigger 13. A rebound spring is provided at the front end of the striker 1. For high angle fire, the cartridge may be ignited by allowing the rocket to slide down the stem on the removal of a wedge. When firing at an angle of depression, the rocket is held up by a catch 18. A larger tube may be fitted to the stem for discharging rockets with larger axial bores. Several stems may be provided on a single mounting, and may be connected to a single firing-cartridge through tap or mushroom valves.
Patent GB-1120360-A (GB)
Title: Photographic sensitising dyes
Inventor: KNOTT EDWARD BOWES
IPC: G03C1/26
Filed: 1965-07-01
Abstract: The invention comprises dyes of the formulaae <FORM:1120360/C4-C5/1> and <FORM:1120360/C4-C5/2> wherein X is sulphur, oxygen, selenium or -N(R0)- where R0 is hydrogen, alkyl or aryl, d and n are each 0 or 1, R1 is alkyl or substituted alkyl of up to 12 carbons or allyl, R has one of the values given for R or is substituted or unsubstituted phenyl, R2 is hydrogen or alkoxy or alkylthio of up to 4 carbons, R5 is cyano, nitro, nitrophenyl, nitronaphthyl or carbalkoxy, R6 is cyano and Z and Q complete 5- or 6-membered heterocyclic rings.  The dyes are made by quaternizing a compound of the formula <FORM:1120360/C4-C5/3> with a quaternizing agent R8Y and then condensing the product with a compound having one of the formulae <FORM:1120360/C4-C5/4> X, R, R1, R2, R5, R6, R8, Y, n, Z and Q having the values given above.  The dyes sensitize photographic silver halide emulsions, as also do the first two of the following intermediate dyes: (G) 3 - Ethyl - 5 - (2,2 - dicyanovinyl) - 4-hydroxy - thiazolin - 2 - thione, (H) 3 - ethyl - 5-(2 - cyano - 2 - ethoxycarbonylvinyl) - 4 - hydroxythiazolin - 2 - thione and (I) 3 - ethyl - 5 - (2-cyano - 2 - p - nitrophenylvinyl) - 4 - hydroxy-thiazolin-2-thione are made by reacting 5-ethoxymethylene - 3 - ethylrhodanine with, respectively, malonitrile, ethyl cyanoacetate and p - nitrophenylacetonitrile.  (N) Anhydro - 3-ethyl - 5 - (a  - cyano - 4 - nitrostyryl) - 4 - hydroxy 2-methyl-thiothiazolium hydroxide is made by reacting intermediate dye (I) above with methyl iodide.
Patent GB-373370-A (GB)
Title: Improvements in wringer stands or trestles
IPC: D06F1/00
Filed: 1931-04-28
Abstract: 373,370. Trestles. SIMS & SONS, Ltd., S. and SIMS, R. S. C., Britannia Works, New Whittington, Chesterfield, Derbyshire. April'28, 1931, No. 12471. [Class 52 (v).] The cross-bar c and upper parts b<2> of the end supports of a trestle are formed from a single metal strip. In the construction shown the parts b<2> are riveted, welded to the lower portions b<1> of the end supports, which are of triangular formation. The whole trestle may be constructed by bending a single metal strip. Sheet metal members f, to receive a wringer, may be attached to the cross-bar.
Patent GB-768822-A (GB)
Title: Improvements in rear-viewing mirrors for motor vehicles
IPC: B60R1/02
Filed: 1955-04-29
Abstract: 768,822. Look-out reflectors for motor vehicles. LAFONT, R. April 29, 1955 [May 7, 1954], No. 12485/55. Class 103(2). [Also in Group XV] A mounting for a rear-viewing mirror comprises a beading 2 having a thin wall 3 and two recesses 10, 11, one for the mounting of the mirror 5 and the other for the mounting of the backing plate 4. The wall 3 may be perforated and may be of the same material as that of the beading or of different material.
Patent GB-377310-A (GB)
Title: Improvements in or relating to tire valve assembly machines
IPC: B29D23/24
Filed: 1931-04-28
Abstract: 377,310. Pneumatic tyres. FIRESTONE TYRE & RUBBER CO., Ltd., Great West Road, Brentford, Middlesex.- (Firestone Tire & Rubber Co. ; Akron, Ohio, U.S.A.) April 28, 1931, No. 12489. [Class 144 (i).] A tyre valve assembly machine comprises a device for threading a nut on the valve stem and a device associated therewith for threading the plug of the valve insides within the stem, means being provided to prevent too tight engagement of the nut and the valve insides with the valve stem. The nut 19 is rotated on the stem 20 by a holder 18 which is mounted on a hollow shaft 17 rotated by a belt-driven pulley 24. The stem, locked against rotation by a.guard-plate 22 engaging slots in a collar 21, moves, longitudinally, and the plug 38 of the valve insides engages a tool 35 screwed to a shaft 29 which is slidably mounted in the shaft 17 and rotated by a belt-driven pulley 40. A screwdriver head 36 on the tool engages lugs 37 on the plug and rotates the latter, which then moves longitudinally within the stem. When a sufficiently tight engagement is obtained, the pulley 40, frictonally engaging the shaft 29 by spring-pressed pins 43, begins to slip and the shaft 29 ceases to rotate. Meanwhile, the stem 20 continues to move longitudinally until its head engages the inner tube 23 and the nut 19 clamps the plate 22 against the tube, the parts then being. in the position shown in the dotted lines in Fig. 3. When the engagement of the nut is sufficiently tight, the belt driving the pulley 24 slips.
Patent GB-787037-A (GB)
Title: Improvements in or relating to the preparation of 2-methyl-4-chlorophenoxyacetic acid
IPC: C07C51/363
Filed: 1955-04-29
Abstract: A method of preparing 2-methyl-4-chlorophenoxyacetic acid or an amide, ester or salt thereof comprises chlorinating 2-methylphenoxyacetic acid or an amide, ester or salt thereof in the presence of 1,2-dichloropropane.  The reaction is suitably effected in solution in the presence of a metal halide and/or a halogen other than chlorine; the ratio of chlorine to 2-methylphenoxyacetic acid (or derivative thereof) is preferably in the range 1.0 : 1.0 to 1.15 : 1.0.  The reaction mass is usually cooled and filtered, the solvent being recycled. Examples describe the chlorination of 2-methylphenoxyacetic acid in 1,2-dichloropropane (1) at 85 DEG  in the presence of iodine, (2) at 60 DEG  to 80 DEG  in the presence of ferric chloride, (3) at 85 DEG  to 95 DEG  in the presence of iodine. Example (3) includes the re-use of solvent from a previous process. Reference has been directed by the Comptroller to Specification 744,475.
Patent GB-1044137-A (GB)
Title: Paint-drying ovens for car-bodies and like objects
IPC: F26B3/30
Filed: 1965-03-24
Abstract: 1,044,137. Drying apparatus. SVENSKA FLAKTFABRIKEN A.B. March 24, 1965 [March 31, 1964], No. 12525/65. Heading F4G. A drying oven for painted car-bodies 5 or the like comprises flue-gas heated radiant elements 2 having inlet and outlet openings 3, 4 for the flue gas passing vertically through the sections, the elements are each made of a varying crosssection and are so shaped that the gas velocity of the radiant surface 6 facing the car-body 5 is caused to increase in front of those parts 7 of the car-body which are most difficult to heat and is caused to decrease adjacent to the parts 8 where a lesser heat is required.
Patent GB-256700-A (GB)
Title: Improvements in shock absorbing means for vehicles
IPC: F16F7/06
Filed: 1925-05-14
Abstract: 256,700. Armstrong, F. G. G. May 14, 1925. Vibration-dampers. -In spring shockabsorbers, with or without friction elements, of the kind in which a strap or like flexible member acts on an oscillating member at a variable effective radius, the oscillating member is constructed as a circular drum with a cam like projection or enlargement. In the construction shown in Figs. 1 and 2 the strap M is connected at one end to the axle and at the other to the cam like projection E' from the drum E which oscillates on the circular open fronted box member A fixed to the vehicle frame B, frictional material D being interposed. The drum E is moved in opposition to the strap M by a spiral spring G, the outer end of which is bent round the edge of a slot in the periphery of the member A; the inner end is connected to the hollow boss f projecting inwards from the plate F which is secured to the drum E by a screw f<2>, the tension of the spring being adjusted by rotation of the plate F relatively to the drum E. Packing rings J, L are provided. In a modification, a flat friction disc is disposed between the end wall of the drum E and the member A.