baber/WOPTO huggingface dataset:
Patent GB-491147-A (GB)
Title: Improvements in or relating to composite wrapping materials
IPC: D21H27/30
Filed: 1937-02-24
Abstract: 491,147. Compound sheet materials. BRITISH WAXED WRAPPINGS, Ltd., and BROWNE, R. J. Feb. 24, 1937, No. 5576. [Classes 96 and 140] Compound sheet material for wrapping fatty substances such as butter or margarine comprises at least two sheets of paper, that sheet which is to contact with the butter being of parchment or greaseproof paper, and a film or sheet opaque to light interposed between two of the sheets of paper, the layers being united by an inodorous wax or wax mixture and the outer surfaces being free from wax. The opaque film or sheet may be metal foil, a metallic coating on a constituent paper sheet, a layer of metal or other powder, or opaque paper such as is employed for wrapping photographic films or plates. Paraffin wax, synthetic waxes, chloronaphthalenes, beeswax, and ceresin are examples of waxes specified. The wax may be applied to the inner layer, the inner surfaces of the outer layers, or one side of the inner layer and one inner surface of an outer laver. The layers are united between unheated or heated rollers, immediately or after the wax has set. One roller may be covered with felt, rubber, or vulcanite. One or both outer surfaces may be coated with gelatin, albumen or other protein or a synthetic or natural resin. The compound sheet may be united with card for making containers.
Patent GB-858363-A (GB)
Title: Improvements in or relating to control circuit arrangements for controllable gas- orvapour-filled discharge tubes
IPC: H02M1/04
Filed: 1957-02-19
Abstract: 858,363. Converting; automatic regulation; control systems for space-discharge apparatus. PHILIPS ELECTRICAL INDUSTRIES Ltd. Feb. 19, 1957 [Feb. 22, 1956], No. 5601/57. Classes 38 (2) and 38 (4). A control circuit for a controllable gasfilled discharge tube 7 comprises a capacitor 5 charged through a rectifier 4 and having connected across it a resistor 6 of which at least a part is connected in the grid-cathode circuit of the tube 7, so that, in the absence of other bias, the grid is negative with respect to the cathode. The tube 7 having a load 10 in its anode circuit is supplied through a transformer 11 and variable-positive grid bias is supplied through a supply 9 and potentiometer 8. As shown in Fig. 2, the voltage waveform across the resistor 6 has a linear portion 14 and the tube ignites at the instant when this curve cuts the ignition voltage curve (dotted). The point of ignition is varied by (a) varying the slider 19 and hence the amplitude of the waveform 13, 14 ; (b) varying the positive grid bias when the whole waveform is moved upwards or downwards, In a modification (Fig. 4, not shown), the positive bias arrangement 8, 9 is replaced by a circuit combination of resistor, rectifier, capacitor and glowdischarge tube. If the tube 7 forms part of an a/c stabilizer automatic voltage compensation is obtained by a suitable choice of curve 14. An increase in mains voltage 16 involves an increase in voltage 14 which shifts the ignition point to decrease the output voltage.
Patent GB-387140-A (GB)
Title: Improvements in or relating to securing auxiliary treads
IPC: B60C27/08
Filed: 1932-02-25
Abstract: 387,140. Tyre - gaiters. DUNLOP RUBBER CO., Ltd., 32, Osnaburgh Street, London, FELLOWES, F. and DAW, R. F., Fort Dunlop. Birmingham. Feb. 25, 1932, No. 5647. [Classes 144 (i) and 144 (ii).] A tyre-gaiter 1 is secured by means of a chain 3 which is connected to one end of the gaiter, passed through a lug on the other end, strained by a lever 14, and locked by a detent 11 engaging a link of the chain. The lug shown comprises pairs of arms 6, 7 connected by pins 9, 10 respectively on which the detent 11 and a sleeve-roller for the chain are mounted. The operating-lever 14 comprises jaws 15 adapted to fulcrum on the wheel-rim, and an oppositely-facing lug 17 which is entered into successive links of the chain in assembling the gaiter.
Patent GB-778569-A (GB)
Title: Adjustable pitch propeller
Inventor: BIERMAN DAVID
IPC: B64C11/40
Filed: 1956-02-23
Abstract: 778,569. Variable pitch propellers. HARTZELL INDUSTRIES, Inc. Feb. 23, 1956, No. 5690/56. Addition to 773,065. Class 114. The invention of the parent Specification is adapted to provide for reversing the blades and for a minimum positive pitch during forward operation. A port 62 in the crank shaft 14 opens into an inner tube 52 having a port or ports 56 open during normal forward working to an elongated port 50 in a tube 44 sliding on the tube 52 and adjustably secured to the movable cylinder 40 actuating the pitch change. The port 50 opens into the tube 32. A port 64 in the crankshaft 14 opens into a short tube 58 out of which the tube 44 emerges completely when the minimum forward setting is reached putting the port 64 into communication with the interior of the tube 32, there being, however, a direct communication through a check valve 130. In operation, when the cylinder 40 has reached the minimum forward pitch position, the port 50 ceases to register with the port 56 and the fluid supply is cut off. Any further movement opens the gap between the tubes 44 and 58 opening the cylinder 40 to exhaust through the port 64. Pressure fluid for reversing is drawn from an accumulator 90 through a valve 96 when the valve is set to connect a conduit 92 from the accumulator 90 with a conduit 100 leading to the port 64 ; returning the valve to the position shown opens the cylinder 40 to exhaust and the spring 36 turns the blade to the forward pitch.
Patent GB-949208-A (GB)
Title: Improvements in or relating to linkage for transmitting motion
Inventor: ORWIN OLAF JOHN BARCLAY
IPC: G05G1/00
Filed: 1960-02-18
Abstract: 949,208. Making links; jointing by forging. FISHER & LUDLOW Ltd. Feb. 13, 1961 [Feb. 18, 1960], No. 5707/60. Headings B3A and B3H. [Also in Division F2] In the manufacture of linkwork, a rod 13 is secured within the bore 12 of a socket 10 by providing in the latter a transverse hole 16 of larger diameter than the bore 12 to form cavities 17, and upsetting the end of the rod at 13b within the socket to fill the cavities and so lock the rod and socket against relative axial rotary movement. Transverse pressure is applied to the rod from both sides through the hole 16 by a pair of opposed punches to effect cold upsetting. The socket may be a casting or forging. This linkwork is of particular use in the drive mechanism of a conveyer described in Specification 949,204 or in operating vehicle brakes.
Patent GB-573681-A (GB)
Title: An improved protractor or like appliance
IPC: B43L13/00
Filed: 1944-03-28
Abstract: 573,681. Protractors. WATT, F. K., and INGHAM, W. March 28, 1944, No. 5732. [Class 97 (iii)] [Also in Group XXII] A protractor &c. for use in the preparation of drilling jigs &c. is provided on the diametral arm 3 of the protractor with a lug 2 formed with a centering hole 4 at the centre of the radius of curvature of the arc 1 of the protractor. Pivotally-mounted on a centering pin 5, situated in the hole 4, is an arm 6 provided with a scale 7 to coact with the scale of the protractor. A vernier cursor 9 is mounted on the arm 6 and a similar one 8 on the diametral arm 3. each cursor being provided with a drilling hole 8a or 9a. The arm 6 is adapted to be locked in adjusted position by a bolt 16 coacting with a recess 17 and provided with a nut 18. In use the protractor is laid on the jig plate and a hole drilled in the plate through the hole 4. The pin 5 is inserted into the hole 4 and projects into the drilled hole of the jig plate. The arm 6 and cursors are then adjusted as required and the protractor clamped to the jig plate preparatory to drilling through the holes 8a, 9a.
Patent GB-1503423-A (GB)
Title: Helical compression spring
IPC: F16F1/08
Filed: 1976-02-13
Abstract: 1503423 Coil springs AHLE Gebr 13 Feb 1976 [15 Feb 1975] 05811/76 Heading F2S A helical spring comprises a truncated conical end portion adjoined either by a cylindrical portion of constant wire diameter or by a further truncated conical end portion, the cylindrical portion if present either being an end portion of the spring or being adjoined by a further tuncated conical end portion as shown in Fig. 2, the largest diameter turn of the or each truncated conical portion forming an end of the spring, and the wire diameter in the or each truncated conical portion increasing from the effective end of the spring formed thereby until it exceeds the wire diameter at the end of the truncated conical portion remote from the effective end and thereafter decreasing such that at its remote end the truncated conical portion has a wire diameter equal to that of the adjoining end of the adjoining portion of the spring-as illustrated in Fig. 5. The spring has a rate which progressively rises in part of the deflection range.
Patent GB-215876-A (GB)
Title: Improvements in marginal printing plates
IPC: B41F27/10
Filed: 1923-02-28
Abstract: 215,876. Hoe & Co., Ltd., R., (Hoe & Co., R.). Feb. 28, 1923. Printing-surfaces.-In the margin space adjacent a main printing-plate mounted on a cylinder is secured a marginal printing-plate of the same length as the main plate around the cylinder whereby such space may be utilized for matter different from that carried by the main plate, or a double width page of a newspaper, or a page, may be printed without a margin space. In one form, Figs. 1 and 2, the marginal plate 6 is formed with a bevelled rib 7 which engages with similar ribs 11 on clamping blocks 9, 10 forced apart by a spring 22 to release the plate 6. Main printing-plates 3, 4 are bevelled to engage the outer edges of the ribs 11, and the plaes 3, 4, 6 are clamped on the cylinder by a screw-actuated block 18 engaging the plate 3 if two plates are used, or engaging a rod 16 if only the plate 4 is used, to force the blocks 9, 10 together. The main plates may be extended over the ribs 11 on the blocks 9, 10 and the marginal plate 6 decreased in width as shown in Fig. 4. In another form, Figs. 5 and 7, the plate 6 is provided with a central flange 25 which has widened and bevelled portions 27 adapted to engage correspondingly bevelled grooves 30 in blocks 31 when the plate is moved circumferentially of the cylinder. The blocks 31 are movable lengthwise of the cylinder to clamp the main plates.
Patent GB-1428607-A (GB)
Title: Synchronising device particularly for change-speed gears of  motor vehicles
IPC: F16D23/06
Filed: 1974-02-08
Abstract: 1428607 Positive clutches DR ING hcF PORSCHE AG 8 Feb 1974 [9 Feb 1973] 05930/74 Heading F2C In a split ring synchronizer the split rings 12, 13 axially abut side faces 27, 28 of a carrier 9 for the sliding sleeve 7, additional split rings for increasing the servo effect of the rings 12, 13 also abutting side faces 27, 28, the carrier thus locating the rings axially in one axial direction.
Patent GB-154943-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F02D9/02
Filed: 1919-09-09
Abstract: 154,943. Norman, Sir H., and Low, A. M. Sept. 9, 1919. Regulating. - In a twostroke-cycle engine, more particularly for use with autoscooters and auto-wheels, having a hand-operated oscillating throttle plug h in the transfer passage g admitting the explosive mixture from the crank-chamber to the working cylinder, the valve is a solid plug with single through-way port, and it is controlled by a lever i actuated by Bowden wire or other transmission.
Patent GB-1173494-A (GB)
Title: Process of Epoxidation of Olefinic Compounds
Inventor: ROCH IRENEE SEREE DE
IPC: C07D303/04
Filed: 1967-02-08
Abstract: 1,173,494. define oxides. INSTITUT FRANCAIS DU PETROLE, DES CARBURANTS ET LUBRIFIANTS. 8 Feb., 1967 [12 Feb., 1966], No. 5967/67. Heading C2C. [Also in Division C3] An olefinic compound having 3-25 carbon atoms in the molecule is epoxidized by reacting it in a substantially anhydrous liquid phase with an organic hydroperoxide in the presence of a salt of molybdic acid, tungstic acid or vanadic acid with an organic nitrogenous base as catalyst. Suitable hydroperoxides are those of aliphatic, cycloaliphatic and alkyl aromatic hydrocarbons, polyolefinic hydroperoxides, alcohol hydroperoxides and acyl hydroperoxides. The hydroperoxide may be used in the form of its crude reaction product, e.g. from the oxidation of a hydrocarbon or an alcohol, e.g. an alkyl benzene or an α-hydroxyalkyl benzene. The olefinic starting materials may be aliphatic olefins, cycloolefins, alkyl and alkenyl cycloolefins, alkenylaryl hydrocarbons, polyolefinic hydrocarbons and olefinic alcohols. Examples are given of the preparation of 1,2-epoxypropane; epoxycyclohexane; 1,2-epoxy-cyclohexanol-3; 1,2- epoxycyclooctane; 2,3-epoxy- 2 - methylpentane; 1,2 - epoxy - 2,4,4 - trimethylpentane and 1,2-epoxyoctane.
Patent GB-713982-A (GB)
Title: Improvements relating to the manufacture of commutator segments
Inventor: LITTMANN MARTIN
IPC: H01R39/02
Filed: 1952-03-07
Abstract: 713,982. Commutators for dynamo-electric machines. METRO-CUTANIT, Ltd. March 4, 1953 [March 7, 1952], No. 6013/52. Class 35 [Also in Group XXII] A commutator segment comprises a porous metallic body portion formed by powder metallurgical methods, and a conductor portion consisting of a metal or alloy of good electrical conductivity, e.g. copper or silver, securely bonded to the body portion by infiltration of part of the metal or alloy of the conductor portion into the porous body portion. The body portion is made from iron,. steel, or alloy steel powders by hot or cold pressing or extrusion and subsequent sintering. Examples are given of the grain sizes, pressures, temperatures, specific gravities and porosities for bodies made from iron powder. The bodies are then placed in a mould with a quantity of copper placed on top of them and they are heated in an atmosphere of hydrogen or in a vacuum or inert atmosphere whereby the copper melts and infiltrates into the porous body and also forms the conducting layer thereon. Additional conductor metal may subsequently be cast on to said layer. The bodies may be subjected to centrifugal force during the casting of the copper thereto whereby the density of the finished segments is increased. The segments ate subsequently heated and tempered. This heat treatment tends to precipitate out of the copper any iron which may have dissolved therein, thus increasing the conductivitv of the conductor portion. The segments may also be pressed in or through dies to further increase their density and to harden them. The porous body may be formed with recesses or protrusions to form keys for the conductor portion and the segment itself may have end recesses for interfitting with the usual end rings of the commutator.
Patent GB-349497-A (GB)
Title: Electric cable terminals for telephone and like cables
IPC: H04Q1/14
Filed: 1930-02-24
Abstract: 349,497. Junction boxes; plug boards. STANDARD TELEPHONES & CABLES, Ltd. and BAGULEY, E., Columbia House, Aldwych, London. Feb. 24, 1930, No. 6047. [Class 38 (i).] A terminal box for telephone cables comprises a panel 1 carrying binding posts 6 to which the cable conductors are attached, and terminals 9 connected to the station, testing, &c. equipment so located with relation to the binding-posts 6 that connection and disconnection between them is effected by means of standard links 10a. Behind the panel 1 is the box 5 for the fanned-out conductors enclosed by side walls 3 and an inclined back-plate 16. The connections 13 from the terminals 9 pass through the side walls 3. Sockets 8, 10 may be attached to or formed on the binding-posts 6 and terminals 9. Where two or more panels 1 are located end to end the cable inlet 17 of one terminal box projects beneath the inclined plate 16 of the adjacent box.
Patent GB-559453-A (GB)
Title: Improvements relating to magnetically operated electrical switches
IPC: H01H51/28
Filed: 1942-05-07
Abstract: 559,453. Electromagnetic and magnetic switches. CIANCHI, A. L. May 7; 1942, No. 6185. [Class 38 (v)] A movable contact such as 1x is carried by a flexible strip 5 to which is secured an armature 7, the strip flexing, when the armature is actuated, so that the armature pivots about its point of connection with the strip. In the form shown in Fig. 12 the armature is actuated by bodily movement of the magnet 8 upwards. In Fig. 14, the armature is moved one way or the other according to the direction of current in a coil 7<SP>1</SP>. a magnet 8 acting as a polarizing magnet. Specifications 501,815 and 552,185 are referred to.
Patent GB-271187-A (GB)
Title: Improvements relating to outer covers or bindings for books
IPC: B42D3/04
Filed: 1926-03-05
Abstract: 271,187. Rissen, J., and Rissen, G. H. March 5, 1926. Covers.-The covers of account books, memorandum books, &c. are provided with an outer covering of celluloid or like transparent material applied in a single sheet b adhering closely to the cover-boards a and the back over the whole or the greater portion of their surface. Alternatively, the celluloid may be applied to the back and cover boards in the form of a solution. Either or both of the cover boards may be provided with an aperture c to reveal a portion of the front page of the book through the applied sheet of transparent material, and the edges of the latter are folded around the edges of the cover boards and concealed beneath a lining sheet.
Patent GB-1099526-A (GB)
Title: Improvements relating to conveyors
Inventor: DUNTHORNE WALTER VICTOR
IPC: B65G17/06
Filed: 1965-02-13
Abstract: 1,099,526. Endless conveyers. FOURWAYS (ENGINEERS) Ltd. Feb. 14, 1966 [Feb. 13, 1965], No. 6316/65. Heading B8A. An endless conveyer comprises a series of pairs of slats 12, 13, each pair being provided with a deformable hard rubber flight 15 connected therebetween. The flights 15 are substantially V-shaped and the ends of the limbs opposite the apex are secured to the respective slats of each pair, whereby when the conveyer passes around an end roller the distance between respective slats of each pair increases, resulting in a reduction in the height of the respective flight. The limbs of the flights may be of unequal length with the shorter abutting the article being conveyed and presenting a steeper angle of inclination to the conveying surface. The conveyer is used in conjunction with a roller conveyer 17, whereby the slats and the flattened flights pass beneath the leading roller 16, which roller is attached to the conveyer to maintain a constant relative spacing. The roller 16 may be braked or counter rotated by contact with the flights which results in a deacceleration of any article transferred between the conveyers. The height of each pair of slats 12, 13 plus the thickness of the flight material and any fixing means is equivalent to the height of those slats without flights.
Patent GB-697034-A (GB)
Title: Improvements in or relating to dough-dividing and like machines
IPC: A21C5/02
Filed: 1951-03-16
Abstract: 697,034. Dough-dividing machines. BARKER & SONS, Ltd.. T., and COXON, G. L. May 20, 1952 [March 16, 1951], No. 6319/51. Class 87 (ii). A piece of dough is severed by a knife 35 from a mass of dough in a hopper 34 and forced by a ram 12 into a chamber 11 which is closed at its other end by a slidable block 10. As the block moves back under the pressure of the dough, a roller 20 on the block moves a plate 21 which is connected by a piston (see Fig. 2, not shown) to a pressure gauge 28. The pressure in the chamber 11 may therefore be observed. Alternatively, the pressures may be recorded by an electronic or other recording device. Excessive movement of the piston may be arranged to give an audible or visual warning. The distance through which the block 10 moves is limited by a collar 15 on a slide bar 14 which collar engages an adjustable abutment 16 on the machine frame. The pressure on the ram 12 is exerted through a yieldable connecting rod 29 having a spring 41. The pressure may be adjusted by adjusting the spring stress, by supplying fluid under pressure to a cylinder in the big-end 39, Fig. 3, which moves a piston 45 to move a disc 44 on which the spring seats. The spring is held in an adjustable position by inserting distance pieces between the big-end and the disc 44. The dough piece is ejected by the block 10 after the chamber has been lowered. The chamber may be lubricated with an emulsion of mineral oil and water.
Patent GB-456255-A (GB)
Title: Improvements in and relating to travelling or like rugs
IPC: A41D1/14
Filed: 1936-03-02
Abstract: 456,255. Travelling - rugs. POLLAK, J. E., 20, Holborn, London.-(Herpich S÷hne, C. A.; 11, Leipzigerstrasse, Berlin) March 2, 1936, No. 6340. [Class 142 (iv)] A travelling or like rug has along one edge the complementary parts of one or more separate fastening devices, some or all of which are adapted to be brought into engagement with one another to hold the rug in position after it has been wrapped about the wearer, and a band of variable length associated with the said edge between said complementary parts. In the form shown, the rug 1 has the upper parts 2a and the lower parts 2b of press studs, which are backed by leather strips 3. In a slotted seam 4 is a rubber band 6 provided with buttonholes 5 which co-operate with buttons 8a and 8b.
Patent GB-655088-A (GB)
Title: Method and apparatus for producing electrical and mechanical energy from thermal energy
IPC: H01L37/04
Filed: 1948-02-29
Abstract: 655,088. Dynamo-electric machines. CHILOWSKY, C. Feb. 29, 1948, No. 6351. Convention date, Dec. 19, 1945. [Class 35] Generators and motors operating by thermally-produced charges of permeability of magnetic circuit.-In a motor or generator operating by thermallyproduced charges of permeability of a magnetic circuit, the magnetic interrupter section, which is alternately heated and cooled above and below the Curie point by means of a fluid, consists of a series of elements having graded Curie points in succession. The difference between the Curie points of adjacent elements does not exceed the Curie interval of said elements. In its simplest form, Fig. 1, the section which is interposed between poles 1, 2 of a magnetic system comprises a series of composite laminµ 3 in planes parallel to the paper and built up of a series of strips 4<SP>1</SP>, 4<SP>2</SP>, . . . 4n of alloys having graded Curie points. These strips may be soldered together at their edges. Fluids for heating and cooling the laminµ are supplied through channels 9, 10. In a modification, Fig. 4, the groups of strips having the same Curie points are replaced by perforated plates 11<SP>1</SP>, 11<SP>1</SP>. . . 11n, composed of materials of graded Curie points which may be mutually thermally insulated. The ends of the magnetic circuit are preferably laminated and spaced by heatinsulating material 16 whilst the ends 141, 151 should be of a material of high Curie point to prevent interruption of the magnetic circuit due to heat leakage. In a modification, the stack is turned over so that the laminµ are at right-angles to the flux and the heating or cooling fluid passes in the same direction as the flux. If desired, the heating and cooling fluids may be retained in separate channels. In Fig. 8 is shown a system for controlling the temperature gradient in a section 37. The magnetic circuit is split into parts 33, 34, carrying windings 35, 36 energizing coils 38, 39 of a differential magnetic plunger 40. Displacement of the plunger actuates bellows 42, 43 to modify the fluid supply to the fluid heater 45 and cooler 47. In addition, the tapping of a resistance 48 is charged to modify the heating and cooling of the liquids. If desired, the bellows may be replaced by a motor driven pump. Gaps in the graded Curie points may be filled by thermally conducting non-magnetic members like 4<SP>1</SP>-4n of Fig. 1 or 11<SP>1</SP>-11n of Fig. 4, or alternatively by a free piston which oscillates with the fluid or a fixed conducting wall providing separate fluid circuits. The fluid may be liquid, either metallic or non-metallic, or gaseous, and it is stated that various arrangements of the laminae, e.g. radial or concentrically cylindrical may be used. Specification 655,087 is referred to.