baber/WOPTO huggingface dataset:
Patent GB-838685-A (GB)
Title: Process for dehydrating alkyl a-hydroxy-isobutyrates
IPC: C07C69/54
Filed: 1958-08-29
Abstract: Methacrylic alkyl esters are prepared by dehydrating the corresponding a -hydroxy-isobutyric alkyl ester by introducing this in a first stage in the liquid or vaporous state into a liquid, weakly acid heating bath containing phosphoric acid and/or inorganoic phosphate salts, which bath is maintained at a temperature above the boiling point of the ester used and preferably above about 170 DEG C. in a manner such that the reaction products formed distil off immediately from the heating bath and are subsequently condensed in a second stage and then worked up in known manner by distillation. Unreacted ester obtained in the second stage may be recycled to the first stage The first stage may be operated under reduced pressure. The ester starting material may be diluted with an inert solvent, e.g. in a ratio from about 2 : 1 to about 1 : 6.  The heating bath may be agitated by means of a stream of inert gas.  The heating bath may consist of: phosphoric acid buffered with phosphates up to about 20% by weight based on the total weight of acid and salts; an acidic salt melt, e.g. composed entirely of phosphates; or may comprise higher fatty acids or paraffinic or aromatic hydrocarbons (e.g. of b.pt. above about 300 DEG  C.) admixed with catalytic amounts of phosphoric acid and/or phosphates, e.g. 1 to 5% by weight of the bath substance.  Suitable phosphates include mono, di or tri alkali metal, alkaline earth metal or ammonium phosphates. Appreciable amounts of acetone may be obtained as by product.
Patent GB-1078658-A (GB)
Title: Improved shutter arrangement at the flame outlet of a gas lighter
IPC: F23Q2/34
Filed: 1965-07-01
Abstract: 1,078,658. Flame aperture shutter. S. H. NEWMAN. July 1, 1965 [July 2, 1964], No. 27900/65. Heading F4F. A gas lighter has a flame aperture 2 in its casing 1 closed by a retractable shutter 3 curved to match the interior wall of the casing and formed at one end with inwardly directed lugs 3c, Fig. 2 (not shown), which engage holes 11 in the upper part of the limbs 6a of an inverted U-shaped driver 6 which is operated by a press lever 4 accessible through an aperture in the casing. The shutter 3 is retracted from the aperture 2 by rotating the driver 6 about a spindle 9 in the direction of arrow F 1  by pivoting the lever 4, the lever 4 having a stud 5 which engages in a notch 7 in the driver. A flint wheel 10 is rigidly mounted on the spindle 9 and rotates with the driver 6.
Patent GB-1421686-A (GB)
Title: Flaw detection
IPC: G01N21/91
Filed: 1974-06-24
Abstract: 1421686 Detecting flaws in surfaces MAGNAFLUX CORP 24 June 1974 [22 June 1973] 27925/74 Heading G1S A method of detecting flaws in the external surface of a hollow workpiece W, Fig. 4, comprises coating particles 34 such as spheres of glass, vitreous or plastics material or cork, the smallest of which are too large to enter into the hollows 33 of the workpiece, with an amount of liquid penetrant insufficient to cause free flowing of the penetrant coating from such particles. Surface contact and relative movement between the coated particles and the workpiece is then brought about so as to transfer a coating to the external surface to give an indication of flaws therein when the workpiece is viewed under normal or fluorescent light. In Figs. 1 to 3 (not shown) turbine blades are held in a skeleton framework (23) within a rotary drum assembly (10) and are coated by tumbling particles, but the coating could be carried out by other means using vibrating tubs, oscillating conveyers, or a cascading arrangement.
Patent GB-298774-A (GB)
Title: Improvements relating to the draft or delivery rollers of machines such as ring spinning frames and the like
IPC: D01H5/64
Filed: 1927-10-21
Abstract: 298,774. Toenniessen, E. Oct. 21, 1927. Rollers and roller heads.-The cap bars a of the rollers of ring spinning - frames and the like are shaped, as by being recessed at d, so that the trunnions b of the top rollers are exposed to permit of their being cleaned by rings h of rubber, flannel, or the like, or brushes, mounted on the clearer rollers e, a scraper being fitted to clean such parts. The clearer roller clears the two upper rollers c and may also clear the self-weighted roller m, and is mounted in slotted bearings k so that it may adapt itself to the rollers; it may be made up of cylindrical parts supported at intervals by discs e<1> to which the shaft is secured.
Patent GB-474546-A (GB)
Title: Improvements in reversible regenerative furnaces
IPC: F28D17/02
Filed: 1936-10-15
Abstract: 474,546. Regenerative furnaces. BROOKE, W. J., and BROOKE, J. B. R. Oct. 15, 1936, No. 28053. [Class 51 (i)] In a reversible regenerative furnace having at each side gas inlet passages 1 and air inlet passages 4, 5 terminating respectively in gas ports 3 and air ports 7 in a fixed part of the furnace structure, a connection 8 is provided between the air port and the gas inlet passage and a single valve 9 provided with an opening 11, is provided to open this connection and close the gas port 3 on the gas discharge side of the furnace. The valve 9 may be a slide valve operated by a motor 13 and may be water cooled and move in a water-cooled frame. In a modification a pivoted valve for controlling the connection 8 and gas port 3 may be employed.
Patent GB-786366-A (GB)
Title: Filling apparatus and method
IPC: B65B3/26
Filed: 1955-10-03
Abstract: 786,366. Container-filling machines. DOLE ENGINEERING CO., J. Oct. 3, 1955 [Oct. 11, 1954], No. 28142/55. Classes 94(1) and 125(2). In a machine for filling containers with liquid, semi-liquid or plastic material, the material is pumped at a constant rate through a pipe 13 into a pipe 8 and flows upwardly through ports 17 into a sleeve 18 formed with ports 22 which are aligned with discharge ports 4 in an outer casing 3. A sleeve valve 23, formed with staggered ports 25 is disposed between the sleeve 18 and casing 3 and is rotated in synchronism with a worm 51 by which containers 44 are spaced apart on a continuously driven endless conveyer 46. The arrangement of the ports 25 is such that-the ports are opened and closed in succession (either singly or in groups) so that intermittent streams of the material are delivered into the containers as they move under the ports and each container is completely filled by the time it reaches the end of the casing 3. For example, the first and fifth ports may be opened and closed simultaneously, then the second and sixth, then the third and seventh and so on. If a container is missing from the line on the conveyer 46, a feeler 53 is rocked by a spring 63 about a pivot 64 to close a switch 66 in the circuit of a solenoid 68 which operates through linkage 69 to rotate a second sleeve valve 54 having ports 62 normally aligned with the ports 4, thus stopping the discharge of material.
Patent GB-188190-A (GB)
Title: Improvements in or in connection with wall and like plugs for electric lighting and power circuits
IPC: H01R13/447
Filed: 1921-10-24
Abstract: 188,190. Lepine, L. J., and Denner, F. D. Oct. 24, 19:n. Plug couplings and connectors. - The socket contacts c of a. wall plug or like coupling are secured to the base of a box a, open at the front, and are Insulated by a loose removable element d which is held in position by a removable cover e<1> formed with a central opening a<1> for insertion and withdrawal of the plug. A tumbler flap g pivoted at h may be provided to cover the opening when the plug is withdrawn. The coupling may be used with the wiring system described in Specification 184,849.
Patent GB-303938-A (GB)
Title: Improvements in or relating to paints and cements having a metallic lustre
IPC: C09C1/62
Filed: 1927-10-24
Abstract: 303,938. Nittinger, C. Oct. 24, 1927. Ornamenting.-Painting may be carried out by coating the surface to be treated with oil varnish or other binding means and b1owing on ground coal slag or mixture of ground coal slag and zinc powder, with or without colours. Coal slag is defined as the mineral residue produced by the combustion of coal as distinct from the vegetab1e residue usually termed ashes.
Patent GB-279849-A (GB)
Title: Improvements in or relating to screw operating spindles
IPC: F16K1/02
Filed: 1927-10-24
Abstract: 279,849. Horn, L. Oct. 27, 1926, [Convention date]. Hand, foot, and like gear.- To impart a rapid initial movement followed by a slow final adjustment to a slidable member a, an operating spindle s has screw threaded engagement of steep pitch with the frame or bracket in which it is mounted and oppositely inclined ordinary threaded engagement with the slidable member. Initial rotation of the spindle causes the steeply threaded part g to ride through the bracket c to one side or the other side thereof, carrying the slidable member a bodily with it. Upon emerging, with continued rotation, the steeply threaded part g bears against the face of the bracket and takes end thrust whilst the normal thread h completes the adjustment. Projections f facilitate re-entry of the steeply threaded part g on the return movement. In the Specification as open to inspection under Sect. 91 (3) (a), one form of the invention (Fig. 3, not shown) is stated to be applicable to steam engine controls. This subject-matter does not appear in the Specification as accepted.
Patent GB-250122-A (GB)
Title: Improvements in tap soles for boots and shoes
IPC: A43B13/00
Filed: 1925-11-10
Abstract: 250,122. Rayner, G. F., (Penn Leather Co.) Nov. 10, 1925. Soles; repairing. - Top soles, half soles, and the like for use in the manufacture and repair of boots and shoes are formed with the forepart 4, 5 substantially equal in size to the outer edges either of a right or a left shoe and the shank 8. 9 is cut diagonally partly on a line for a right and partly for a left shoe. By cutting continuously along the lines 8 or 9 the blank is adapted for a right or a left shoe.
Patent GB-536416-A (GB)
Title: Improvements in or relating to the evacuation of the space between walls in double-walled containers and other concave bodies
IPC: C03B23/13
Filed: 1939-10-20
Abstract: 536,416. Evacuating double walled vessels. SCHIERENBECK, F. A. Oct. 20, 1939, No. 28315. [Class 8(i)] A double-walled flask 2 is evacuated by connection to a tube 1 leading to vacuum pumps, while the interior of the flask is heated by a gas flame led through a lagged pipe 4. The flask may be rapidly cooled by stopping the gas supply and forcing a blast of cold air through the air-supply pipe 7.
Patent GB-395672-A (GB)
Title: Improvements in or relating to recreation apparatus
IPC: A63G1/30
Filed: 1931-10-12
Abstract: 395,672. Roundabouts. BORIE, M., 114, Calle Claris, Barcelona, Spain. Oct. 12, 1931, No. 28343. Convention date, July 13. Void [Published under Sect. 91 of the Acts]. [Class 132 (i).] A roundabout comprises a number of small aeroplanes 4 mounted to rotate around a vertical axis, each of which is provided with its own motor and propeller controlled by an attendant and also with means operated by the passenger to regulate the height to which the aeroplane ascends. Each aeroplane is connected to rods 3, 31 hinged to a rotary axle 1 and also attached to a rope 6 passing over a pulley at the end of an arm 7 and a motor-driven pulley 9 and carrying a counterweight 10. A lever under the control of the passenger operates a switch to regulate the movement of the pulley 9 by which the aeroplane is raised and lowered. A stop 12 limits the upward movement of the aeroplane and a plate 13 limits the movement of the weight 10. Should the aeroplane be in its top position when the apparatus is stopped it may be lowered by a switch under the control of an attendant.
Patent GB-1525294-A (GB)
Title: Compositions containing substituted bis-chromonyl compounds
IPC: A61K31/35
Filed: 1976-06-22
Abstract: 1525294 Compositions containing bis-chromonyl compounds FISONS Ltd 22 June 1976 [5 July 1975] 28408/75 Heading A5B A pharmaceutical composition in unit dosage form contains more than 250 mg and up to 1,000 mg of a compound of the formula: (wherein X represents a polymethylene chain containing from 3-7 carbon atoms, which chain may be substituted by a hydroxy group) or a therapeutically acceptable salt, alkyl C 1 -C 10  ester, mono-alkyl C 1 -C 10  amide, dialkyl C 1 -C 10  amide, or unsubstituted amide thereof.
Patent GB-935894-A (GB)
Title: Method and apparatus for providing spaced holes in a paper web
IPC: B26F1/00
Filed: 1962-07-24
Abstract: 935,894. Feeding webs. J. B. FULK. July 24, 1962, No. 28420/62. Class 100 (1). [Also in Groups VIII and XV] Relates to a method and apparatus for producing manifold stationery comprising a plurality A, B, C, D . . . of paper webs, such as hectograph paper, Fig. 11. As shown in Fig. 1, the webs are drawn from reels by apparatus 10, allowed to fall in festoons before entering guiding apparatus 11, and then pass through a press 12. In the press, Figs. 3, and 5, the webs, superimposed upon one another pass through a rotary punch 33, perforating rollers 27, 28 and " crash " printing rollers 22, 23, and are transported by pin belts 102, 102A (see also Fig. 10), to a delivery pin wheel 97. Pin belts 100, 100A and 101, 101A are positioned between the rotary punch 33 and the perforating rollers 27, 28 and its perforating roller 27, 28, and the printing rollers 22, 23 respectively. The apparatus 10 comprises continuously driven rollers 65 with spring-loaded nip rollers 66, Fig. 6. The guiding apparatus 11 includes a frame 85 which supports a series of bars 86, 87, Figs. 8 and 9. Each bar 86 is connected to the frame 85 by wing nuts 88 and carries collars 89, 90 which, in turn support the bar 87. Each collar is adjustable with respect to the bar 86 to alter the degree of wrap-round of the web. A brush 91, Fig. 3, may be used for smoothing wrinkles in the web. Additionally, a flat bar 98, Fig. 5, resting freely on the web, in advance of the punch 33, operates to smooth wrinkles in the web. A further embodiment, Figs. 12 and 13 (not shown), has no perforating rollers allowing a modified positioning of the pin belts. In two further embodiments, Figs. 14 and 15 respectively (not shown), a single row of holes is punched along one edge of the web.
Patent GB-427393-A (GB)
Title: Prevention of erosion or pitting of ships' propellers
IPC: B63H1/12
Filed: 1934-11-08
Abstract: 427,393. Screw propellers. FOUNTAINE, C. A., Narford Hall, King's Lynn, Norfolk. Nov. 8, 1934, No. 28429 /33. [Class 114] The surface of the blades of a screw propeller is sheathed in rubber or like material, such material being secured in a recess in the blade surface. The blade A is provided with a recess having bevelled edges a<1> in which is placed a sheet of rubber B that is secured by screws C with or without additional adhesive securing means. In an alternative the sheeting is continued around the edges and the recess is formed a short distance from the edge on the other face. The whole or only a part of the blade may be so covered. In the case of a propeller blade which has become eroded it is machined at this position and into the recess so formed the rubber protection is placed. In such circumstances the depth of the recess will be greater than in the previous case.
Patent GB-1502420-A (GB)
Title: Computing system for optimizing sales organisations and activities
IPC: G06Q10/00
Filed: 1974-06-26
Abstract: 1502420 Computing PROMSYST-ETAB 23 May 1975 [26 June 1974] 28453/74 Heading G4A In a computing system for optimizing a sales organization by determining an optimum coding, defined as the number of regular visits over a predetermined period of time Pd by a business representative to a client, involves (a) calculating for each different value of x representing the coding of clients a value y (defining a saturation curve) representing the sales arising over the predetermined period in accordance with the relation, for x greater or equal to 3, y=D{(1-G 1 )<SP>x</SP>+k(x-1)(1-G 1 )<SP>x-2</SP>-k<SP>2</SP>/2G 1  (x-2)(1-G 1 )<SP>x-4</SP>(2-(x-1)G 1 ) + k<SP>3</SP>/3G 1 <SP>2</SP> (x-3)(1-G 1 )<SP>x-6</SP>(3-3(x-2)G 1 +<SP>1</SP>/ 2 (x-1) (x-2)G 1 <SP>2</SP>)+ ... } in which M = the memory factor of the client (i.e. retention of the representative's sale talk after 24 hours), D = client's total demand over the period, K = 0À0581 M, G 1  = M(0À5054+ 0À1930 log x), for x = 1 calculating y = D(1-G 1 ) and for x = 2 calculating y = D(1-G 1 )<SP>2</SP> + K), (b) calculating for each different value of x a value for y equal to in which C = direct cost of a representative over the period, a = additional visits, # = percentage of gross profit on sales, T = visiting time in days per representative over the period of time, N = number of visits per day per representative and γ = the cost over the period of controlling a representative divided by the direct cost of that representative to derive a minimum sales line which intersects the saturation curve at a point defined as the critical point and (c) selecting a value of x as a client's coding for which the value of y corresponding to sales over the period arising from the representative's activity provides a point above the minimum sales line and the saturation curve as close to the saturation curve as possible. The system may also determine the number of members in each hierarchical level from the representative, through agency and regional managers, to the commercial manager. A known processor in the form of a single integrated circuit chip in conjunction with a read only memory holding in machine language the relevant program for performing the calculations and a random address memory may be used to effect calculation with an operator entering input data using a keyboard, there being a print out of the resulting calculations.
Patent GB-1081636-A (GB)
Title: Novel oximes and a process for the preparation thereof
IPC: C07D243/16
Filed: 1965-09-29
Abstract: Compounds of the general formula <FORM:1081636/C2/1> (wherein R represents a hydroxy, C1- 7 alkoxy or aryloxy (aromatic) group, R1 represents a halogen atom or a nitro or trifluoromethyl group, R2 represents a C1- 7 alkyl group, R3 represents a phenyl group which may carry a halo or trifluoromethyl substituent and the broken line denotes an optional substituent) and their acid addition salts are prepared by reacting a compound of the formula <FORM:1081636/C2/2> (wherein R4 represents a C1- 7 alkoxy or aryloxy (aromatic) group) with hydroxylamine or a salt thereof, optionally followed by hydrolysis and/or salt formation.  Products in which R represents an hydroxy group may be esterified, and nitro-substituted products may be converted to the corresponding halo-substituted products.
Patent GB-813197-A (GB)
Title: Cushions and method of making the same
IPC: A47C27/00
Filed: 1956-09-18
Abstract: 813,197. Cushions &c. REISNER, M. Sept. 18, 1956, No. 28485/56. Class 52(4) Relates to means for securing to foamed elastomer shapes 2, fabric covers made up of top and bottom face panels 4, 5 and a peripheral edge panel 6 joined together by stitched seams t, preferably welted as at w, the stitching on at least three sides being effected with the cover inside out. According to the invention along at least two opposite panel edges a tape 7 is secured by one edge in the seam, an adhesive band 8 on the inner surface of the tape secures it to the core, and the outer surface of the tape is not attached to the cover. As shown, two tapes are secured to each seam, one for each of the panels joined thereby. In making the cushion, the tapes are stitched to the edges of all panels by inner and outer rows of stitching 10, 9, the former being chain stitching. The panels are then seamed and turned right side out to form an open bag, and the core is inserted. Each tape has a cover band 8c for the adhesive and this is then pulled away and out of the bag by a draw string 8d. The mouth of the bag is then stitched up and the cover is pressed down to effect the adhesion. Finally, chain stitching 10 is undone from the exterior of the cushion to free the tapes from the cover.
Patent GB-874902-A (GB)
Title: Improvements relating to power units
IPC: F02B41/10
Filed: 1959-08-20
Abstract: 874,902. Charge pumps. DAIMLER-BENZ A.G. Aug. 20, 1959 [Aug. 22, 1958], No. 28508/59. Class 7(2). [Also in Group XXVI] In a power unit comprising an internal combustion piston engine and a gas turbine plant each complete in itself and capable of operating independently and coupled by gearing, the gas turbine drive being suitable for engaging and disengaging while the internal combustion piston engine is running, air is tapped off from the compressor of the gas turbine plant when the drive is engaged and supplied as supercharging air for the internal combustion piston engine. The power unit comprises an internal combustion piston engine A and a gas turbine plant B coupled together by gearing C. In continuous operation, engine A only is constantly running and its combustion air is taken from the atmophere. If peak output is required, the gas turbine plant B is also put into operation and air from the combined axial flow and centrifugal compressor 13 is simultaneously used for supercharging the engine A. This air may be tapped from the discharge of the compressor or at any intermediate stage. An overrun coupling is provided within the gearing C, e.g. a free wheel with wedging rollers 15, to permit overrunning of the output shaft 12 by the output shaft 11, but not vice versa. An elastic coupling 19 is provided to damp the vibrations emanating from the internal combustion piston engine 18. A supercharging air cooler 17 may also be provided. To vary the supercharging pressure the tapping off point may be movable during operation, or the intake controlled. The supercharging pressure may be controlled by the piston engine temperature. In a modification, Fig. 2 (not shown), the air from the compressor is led to the intake of an exhaust gas turbine driven supercharger. This supercharger may also be driven by the engine crankshaft.
Patent GB-845254-A (GB)
Title: Train speed control and cab signalling equipment
IPC: B61L3/00
Filed: 1958-09-05
Abstract: 845,254. Train speed control. SOC. TECHNIQUE POUR L'INDUSTRIE NOUVELLE S.A. STIN. Sept. 5, 1958 [Sept. 13, 1957], No. 28528/58. Class 105. Train control and signalling equipment which automatically applies the brakes of the train if its speed exceeds that permitted for the stretch of track over which it is proceeding. The pulse generator 03 produces electrical pulses which are a function of the rate of rotation of the wheel 02 and hence of the train speed, the pulses are counted in counter 04. A constant frequency oscillator 05 produces pulses in the shaper 06 which are counted by the counter 07. The counters are started by a signal from the detector 13 produced when the train moves over the track electromagnet 11. When the count in either counter reaches a predetermined value a signal is forwarded to the sensing device 08 which initiates the operation of the braking device 14 and a lamp or bell alarm if the signal from the counter 04 arrives first (train too fast) or initiates the operation of the resetting device 09 which resets the counters to zero if the signal from counter 07 arrives first (train below permitted speed). The count which produces a signal from either or both counters is adjustable to accommodate different values of permitted speed.