US2069362A - Fabricated belt splice and method of splicing the same - Google Patents
Fabricated belt splice and method of splicing the same Download PDFInfo
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- US2069362A US2069362A US420135A US2069362A US 2069362 A US2069362 A US 2069362A US 420135 A US420135 A US 420135A US 2069362 A US2069362 A US 2069362A
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- Prior art keywords
- belt
- rubber
- tape
- splicing
- splice
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G3/00—Belt fastenings, e.g. for conveyor belts
- F16G3/10—Joining belts by sewing, sticking, vulcanising, or the like; Constructional adaptations of the belt ends for this purpose
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
- B29C65/483—Reactive adhesives, e.g. chemically curing adhesives
- B29C65/4835—Heat curing adhesives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
- B29C65/5042—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like covering both elements to be joined
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/112—Single lapped joints
- B29C66/1122—Single lap to lap joints, i.e. overlap joints
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/114—Single butt joints
- B29C66/1142—Single butt to butt joints
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/303—Particular design of joint configurations the joint involving an anchoring effect
- B29C66/3032—Particular design of joint configurations the joint involving an anchoring effect making use of protusions or cavities belonging to at least one of the parts to be joined
- B29C66/30325—Particular design of joint configurations the joint involving an anchoring effect making use of protusions or cavities belonging to at least one of the parts to be joined making use of cavities belonging to at least one of the parts to be joined
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/43—Joining a relatively small portion of the surface of said articles
- B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
- B29C66/4322—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms by joining a single sheet to itself
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/43—Joining a relatively small portion of the surface of said articles
- B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
- B29C66/4324—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms for making closed loops, e.g. belts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/43—Joining a relatively small portion of the surface of said articles
- B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
- B29C66/4329—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms the joint lines being transversal but non-orthogonal with respect to the axis of said tubular articles, i.e. being oblique
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/49—Internally supporting the, e.g. tubular, article during joining
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/737—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined
- B29C66/7375—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined uncured, partially cured or fully cured
- B29C66/73751—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined uncured, partially cured or fully cured the to-be-joined area of at least one of the parts to be joined being uncured, i.e. non cross-linked, non vulcanized
- B29C66/73752—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined uncured, partially cured or fully cured the to-be-joined area of at least one of the parts to be joined being uncured, i.e. non cross-linked, non vulcanized the to-be-joined areas of both parts to be joined being uncured
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/832—Reciprocating joining or pressing tools
- B29C66/8322—Joining or pressing tools reciprocating along one axis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/84—Specific machine types or machines suitable for specific applications
- B29C66/855—Belt splicing machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/84—Specific machine types or machines suitable for specific applications
- B29C66/861—Hand-held tools
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G3/00—Belt fastenings, e.g. for conveyor belts
- F16G3/003—Apparatus or tools for joining belts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
- B29C65/5092—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like characterised by the tape handling mechanisms, e.g. using vacuum
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/303—Particular design of joint configurations the joint involving an anchoring effect
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/709—Articles shaped in a closed loop, e.g. conveyor belts
- B29L2031/7092—Conveyor belts
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/16—Belt fasteners
- Y10T24/1664—Splices
Definitions
- My invention relates to improvements in fabricated belt splices and methods of splicing the same.
- Twilled tape belts are commonly used on printing press conveyors and the ends are ordinarily stitched together to produce a so-called sewed splice.
- Such splicing has not been satisfactory for several reasons.
- the feeding of sheets of paper to printing and lithographing presses is a delicate operation and if the carrying surface of the belt presents frayed edges at the splice, or if such edges are covered by a reinforcing strip or otherwise coated to cover the spliced ends and broken or frayed threads, the carrying efficiency of the tape is impaired and uniformity in feeding cannot be attained unless the surface contour and friction coeflicient is uniform.
- the object of my invention is to provide means whereby the ends of tape belts and other fabricated belts may be vulcanized together while maintaining a carrying efficiency in the vicinity of the splice equal to that of the other portions of thebelt and producing a spliced joint of greatly increased durability as compared with the durability of sewed or riveted splices.
- a further object of my invention is to provide means whereby a spliced joint may be produced in which the ends of a fabricated belt may be butted and vulcanized together without overlapping and without'the formation of a gap between the ends of the fabric, either with or without a filler.
- a further object is to provide means whereby a reinforcing strip of fabric applied to the inner side of the belt, 1. e., the side opposite the carrying side, may be connected by strips of rubber, pressed into the fabric during the initial stages of a vulcanizing operation and vulcanized therein after impregnation, whereby interior as well as exterior threads may be mechanically connected and anchored together by the vulcan ized rubber.
- Figure 1 is a perspective view of the end portions of a tape belt and reinforcing strip as prepared for splicing operation.
- Figure 2 is a perspective view of a vulcanizing press as it appears when vulcanizing together the belt material shown in Figure 1.
- Figure 3 is a view in longitudinal section, showing the spliced portions of the belt enlarged to approximately four times the thickness of an ordinary tape belt.
- Figure 4 is a fragmentary view showing the reinforcing strip partially pulled away to show the character of the vulcanized union.
- Figure 5 illustrates a rolled strip of reinforcing material as I prefer to prepare it for commercial sale.
- the ends of the tape are cut obliquely and slightly overlapped as shown in Figure 1, the extent of the overlapping being approximately onesixteenth to one thirty-second of an inch. I place these overelapped end portions l0 and II upon a strip I3 of similar material with a layer H of uncured rubber interposed.
- the uncured rubber may be applied in any suitable manner.
- the operation of the press tends to separate the ends of the tape in a spreading movement and this results in withdrawing the overlapped portion and butting the ends in substantially an edge to edge contact along the oblique line of severance.
- the uncured rubber is forced by the pressure upwardly into the joint to completely enclose and embed the frayed edges or ends of the threads composing the fabric, whereby to connect the ends of the tape, said ends being also connected by a layer of vulcanized rubber extending along their under surfaces between them and the reinforcing strip.
- This interposed layer of rubber is pressed into the fabric to such 'an extent that after the vulcanizing operation it is scarcely distinguishable as an interposed layer, the threads composing the reinforcing strip being substantially in contact with those composing the end portions of the tape belt.
- Vulcanized splices made in accordance with my improved method have a durability of many times that of an ordinary sewed splice, and the carrying surface of the tape is substantially the same in smoothness and carrying emciency at the joint as that of any other portion of the tape, there being no frayed edges and no. shoulders or other projections on the carrying surface to interfere with the operation of feeding sheets of paper or other material requiring delicate handling to insure proper delivery to a printing press or other similar receiving machine in association with which the tape is being employed as a feeder, e. g., a wrapping or folding machine.
- the reinforcing strip from a strip of tape material by coating one face of it with uncured rubber and then applying a strip of holland or muslin to such coating to preserve it and prevent it from adhering to other material with which it contacts.
- the strip can then be wound up in the form of a roll ISas shown in Figure 5, and it may then be stored for a considerable period of time without deterioration.
- this strip can be unwound from the roll sufficiently to allow a reinforcing strip of the desired length to be cut away, whereupon the holland or muslin covering will be removed preparatory to placing the ends of the tape upon the reinforcing strip as illustrated in Figure 1.
- belts may be spliced in much less time than heretofore required, and also the required simple vulcanizing apparatus is more durable, compact and less expensive than a sewing or riveting machine.
- My improved spliced fabricated belts have substantially the same flexibility in the spliced portion as in the other portions and they have a carrying surface of the same efficiency for conveying sheets of paper to printing presses and the like. They have a durability of from sixty to two hundred continuous operating hours, as compared with a durability of only from six to sixteen hours for a sewed splice. This appears to be due to the yielding characteristics of the connecting threads and strips of rubber, the embedding of threads of fabric in masses of rubber, the
- My invention is applicable to any fibrous belt penetrable by uncured rubber under the described conditions when the splice is subjected to pressure in any ordinary vulcanizing press.
- fabricated belt is to be understood to include belts formed in any manner from fibrous material.
- a spliced fibrous carrier belt having its ends in butted pressure relation to each other, permeated and coated with vulcanized rubber to a substantial distance from said butted ends and reenforced by a strip of fabric applied to the inner faces of said end portions of the belt, said splice being also permeated along the surface in contact with the ends of the belt by portions of the same mass of rubber which coats and permeates the belt ends, whereby to prevent stretching at the joint and provide a durable splice without irregularity in the carrying face of the belt.
Description
Feb. 2, 1937. F, H, F RD I 2,069,362
FABR ICATED BELT SPLICE AND METHOD OF SPLICING THE SAME v Filed Jan. 30, 1955 INVENTOR ATTORNEYS Patented Feb. 2, 1937 UNITED STATES PATENT OFFICE Frederick H. Ford, Waupun, Wis., assignor to The Shaler Company, Waupun, Wis., a corporation of Delaware Application January 30, 1935, Serial No. 4,201
2 Claims.
My invention relates to improvements in fabricated belt splices and methods of splicing the same.
Twilled tape belts are commonly used on printing press conveyors and the ends are ordinarily stitched together to produce a so-called sewed splice. Such splicing has not been satisfactory for several reasons. The feeding of sheets of paper to printing and lithographing presses is a delicate operation and if the carrying surface of the belt presents frayed edges at the splice, or if such edges are covered by a reinforcing strip or otherwise coated to cover the spliced ends and broken or frayed threads, the carrying efficiency of the tape is impaired and uniformity in feeding cannot be attained unless the surface contour and friction coeflicient is uniform.
Also, it has been found that these sewed joints are not durable even when reinforced on the under side. The ordinary sewed joint lasts only from six to sixteen hours. Riveting is even less satisfactory, although in some instances it has been resorted to for the reason that the splice can be more quickly made in a riveting machine than it can be made in a sewing machine, but
owing to the more satisfactory operation of the sewed splice, sewing has been customarily resorted to notwithstanding the fact that for many years the splicing of tape belts has been recognized as presenting a very serious problem.
The use of glues and so-called cements is not practical for the reason that the belt is stiffened and continued ficxion tends to break up the adhesions.
The object of my invention is to provide means whereby the ends of tape belts and other fabricated belts may be vulcanized together while maintaining a carrying efficiency in the vicinity of the splice equal to that of the other portions of thebelt and producing a spliced joint of greatly increased durability as compared with the durability of sewed or riveted splices.
A further object of my invention is to provide means whereby a spliced joint may be produced in which the ends of a fabricated belt may be butted and vulcanized together without overlapping and without'the formation of a gap between the ends of the fabric, either with or without a filler. A further object is to provide means whereby a reinforcing strip of fabric applied to the inner side of the belt, 1. e., the side opposite the carrying side, may be connected by strips of rubber, pressed into the fabric during the initial stages of a vulcanizing operation and vulcanized therein after impregnation, whereby interior as well as exterior threads may be mechanically connected and anchored together by the vulcan ized rubber.
In the drawing:
Figure 1 is a perspective view of the end portions of a tape belt and reinforcing strip as prepared for splicing operation.
Figure 2 is a perspective view of a vulcanizing press as it appears when vulcanizing together the belt material shown in Figure 1.
Figure 3 is a view in longitudinal section, showing the spliced portions of the belt enlarged to approximately four times the thickness of an ordinary tape belt.
Figure 4 is a fragmentary view showing the reinforcing strip partially pulled away to show the character of the vulcanized union.
Figure 5 illustrates a rolled strip of reinforcing material as I prefer to prepare it for commercial sale.
Like parts are designated by the same reference characters throughout the several views.
The ends of the tape are cut obliquely and slightly overlapped as shown in Figure 1, the extent of the overlapping being approximately onesixteenth to one thirty-second of an inch. I place these overelapped end portions l0 and II upon a strip I3 of similar material with a layer H of uncured rubber interposed. The uncured rubber may be applied in any suitable manner.
It may be spread over one or both opposing surfaces of the fabric or it may be applied to the reinforcing strip and with suitable protection against deterioration such strips may be sold as an article of manufacture from which portions of the desired length may be cut. These portions of the tape, including the reinforcing strip, are then placed upon the platen l5 of a vulcanizing press and a clamping platen I8 is then brought down upon the tape under pressure applied in any suitable manner,preferably by means of screws I8 as is customary in the operation of vulcanizing presses. Heat is then applied to vulcanize the uncured rubber, the latter having been pressed into the fabric to such an extent as to impregnate it to a considerable depth above and below the plane originally occupied by the rubber.
In the drawing I have indicated an electric heater at 20 whereby the lower platen l5 and the portions of the belt and reinforcing strip engaged thereby may be heated to a vulcanizing temperature for the proper length of time to thoroughly vulcanize the rubber.
The operation of the press tends to separate the ends of the tape in a spreading movement and this results in withdrawing the overlapped portion and butting the ends in substantially an edge to edge contact along the oblique line of severance. The uncured rubber is forced by the pressure upwardly into the joint to completely enclose and embed the frayed edges or ends of the threads composing the fabric, whereby to connect the ends of the tape, said ends being also connected by a layer of vulcanized rubber extending along their under surfaces between them and the reinforcing strip. This interposed layer of rubber is pressed into the fabric to such 'an extent that after the vulcanizing operation it is scarcely distinguishable as an interposed layer, the threads composing the reinforcing strip being substantially in contact with those composing the end portions of the tape belt.
However, upon attempting to pull the reinforcing strip away, the stretching of the rubber connections between the threads of the tape and those of the reinforcing strip presents the appearance of innumerable distended threads and strips a of rubber, each extending to and penetrating into the fabric to a considerabledepth in adhesive and mechanically interlocked relation to both external and internal threads. This produces a joint of great strength and durability.
Vulcanized splices made in accordance with my improved method have a durability of many times that of an ordinary sewed splice, and the carrying surface of the tape is substantially the same in smoothness and carrying emciency at the joint as that of any other portion of the tape, there being no frayed edges and no. shoulders or other projections on the carrying surface to interfere with the operation of feeding sheets of paper or other material requiring delicate handling to insure proper delivery to a printing press or other similar receiving machine in association with which the tape is being employed as a feeder, e. g., a wrapping or folding machine.
I prefer to prepare the reinforcing strip from a strip of tape material by coating one face of it with uncured rubber and then applying a strip of holland or muslin to such coating to preserve it and prevent it from adhering to other material with which it contacts. The strip can then be wound up in the form of a roll ISas shown in Figure 5, and it may then be stored for a considerable period of time without deterioration. When a belt is to be spliced, this strip can be unwound from the roll sufficiently to allow a reinforcing strip of the desired length to be cut away, whereupon the holland or muslin covering will be removed preparatory to placing the ends of the tape upon the reinforcing strip as illustrated in Figure 1. By the described method belts may be spliced in much less time than heretofore required, and also the required simple vulcanizing apparatus is more durable, compact and less expensive than a sewing or riveting machine.
My improved spliced fabricated belts have substantially the same flexibility in the spliced portion as in the other portions and they have a carrying surface of the same efficiency for conveying sheets of paper to printing presses and the like. They have a durability of from sixty to two hundred continuous operating hours, as compared with a durability of only from six to sixteen hours for a sewed splice. This appears to be due to the yielding characteristics of the connecting threads and strips of rubber, the embedding of threads of fabric in masses of rubber, the
mechanical or interlocking anchorage of masses of rubber on the ends of the connecting threads when embedded in the fabric and the adhesions between the rubber and the threads composing the fabric.
My invention is applicable to any fibrous belt penetrable by uncured rubber under the described conditions when the splice is subjected to pressure in any ordinary vulcanizing press.
The term fabricated belt" is to be understood to include belts formed in any manner from fibrous material.
I claim:
1. The method of splicing belts permeable by uncured rubber under pressure, consisting in slightly overlapping the ends to be spliced while maintaining the ends in sufilcient proximity to allow them to be butted when subjected to pressure, applying unvulcanized rubber to the inner faces of the end portions, covering the exposed face of the rubber with a reinforcing strip of fibrous material, subjecting the joint to pressure sufiicient to spread the overlapped ends until they are brought into butted relation to each other, and the uncured rubber forced into interlocking relation with the fibrous material of the belt and reinforcing strip, and heating the rubberized portions to a vulcanizing temperature.
2. A spliced fibrous carrier belt having its ends in butted pressure relation to each other, permeated and coated with vulcanized rubber to a substantial distance from said butted ends and reenforced by a strip of fabric applied to the inner faces of said end portions of the belt, said splice being also permeated along the surface in contact with the ends of the belt by portions of the same mass of rubber which coats and permeates the belt ends, whereby to prevent stretching at the joint and provide a durable splice without irregularity in the carrying face of the belt.
FREDERICK H. FORD.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US420135 US2069362A (en) | 1935-01-30 | 1935-01-30 | Fabricated belt splice and method of splicing the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US420135 US2069362A (en) | 1935-01-30 | 1935-01-30 | Fabricated belt splice and method of splicing the same |
Publications (1)
Publication Number | Publication Date |
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US2069362A true US2069362A (en) | 1937-02-02 |
Family
ID=21709654
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US420135 Expired - Lifetime US2069362A (en) | 1935-01-30 | 1935-01-30 | Fabricated belt splice and method of splicing the same |
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US (1) | US2069362A (en) |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2661046A (en) * | 1951-09-17 | 1953-12-01 | Econaway Mfg Company | Cutting and splicing apparatus |
US2723032A (en) * | 1950-12-18 | 1955-11-08 | Mining Process & Patent Co | Vibrating screens |
US4198196A (en) * | 1979-04-17 | 1980-04-15 | Otis Elevator Company | Apparatus for splicing ends of a grooved sheave insert member |
DE3115862A1 (en) * | 1981-04-21 | 1982-11-11 | Pollard V-Belt (Guernsey) Ltd., St. Peter Port, Guernsey, Kanalinseln | Belt connection |
US4904322A (en) * | 1987-03-20 | 1990-02-27 | Mertens Richard O | Method for manufacturing a tension belt |
DE3906740A1 (en) * | 1989-03-03 | 1990-09-06 | Continental Ag | Process for producing insoluble connections for conveyor belts |
US5487707A (en) * | 1994-08-29 | 1996-01-30 | Xerox Corporation | Puzzle cut seamed belt with bonding between adjacent surfaces by UV cured adhesive |
US5514436A (en) * | 1994-08-29 | 1996-05-07 | Xerox Corporation | Endless puzzle cut seamed belt |
US5721032A (en) * | 1994-08-29 | 1998-02-24 | Xerox Corporation | Puzzle cut seamed belt with strength enhancing strip |
US6234304B1 (en) * | 1998-01-28 | 2001-05-22 | Mol Belting Company | Conveyor belt joint |
WO2010124790A1 (en) * | 2009-04-29 | 2010-11-04 | A. Raymond Et Cie | Device for connecting at least two belts |
US20160354706A1 (en) * | 2014-05-09 | 2016-12-08 | Robert Lyle Thompson | Custom multi-colored images applied to three dimensional products, such as polystyrene post production on an individual basis |
DE102015212745A1 (en) * | 2015-07-08 | 2017-01-12 | Contitech Transportbandsysteme Gmbh | Belt or belt segment |
DE102015212747A1 (en) * | 2015-07-08 | 2017-01-12 | Contitech Transportbandsysteme Gmbh | Belt or belt segment |
EP3501779A1 (en) * | 2017-12-20 | 2019-06-26 | ContiTech Transportbandsysteme GmbH | Vulcanisation press transport system |
-
1935
- 1935-01-30 US US420135 patent/US2069362A/en not_active Expired - Lifetime
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2723032A (en) * | 1950-12-18 | 1955-11-08 | Mining Process & Patent Co | Vibrating screens |
US2661046A (en) * | 1951-09-17 | 1953-12-01 | Econaway Mfg Company | Cutting and splicing apparatus |
US4198196A (en) * | 1979-04-17 | 1980-04-15 | Otis Elevator Company | Apparatus for splicing ends of a grooved sheave insert member |
DE3115862A1 (en) * | 1981-04-21 | 1982-11-11 | Pollard V-Belt (Guernsey) Ltd., St. Peter Port, Guernsey, Kanalinseln | Belt connection |
US4904322A (en) * | 1987-03-20 | 1990-02-27 | Mertens Richard O | Method for manufacturing a tension belt |
DE3906740A1 (en) * | 1989-03-03 | 1990-09-06 | Continental Ag | Process for producing insoluble connections for conveyor belts |
US5721032A (en) * | 1994-08-29 | 1998-02-24 | Xerox Corporation | Puzzle cut seamed belt with strength enhancing strip |
US5514436A (en) * | 1994-08-29 | 1996-05-07 | Xerox Corporation | Endless puzzle cut seamed belt |
US5487707A (en) * | 1994-08-29 | 1996-01-30 | Xerox Corporation | Puzzle cut seamed belt with bonding between adjacent surfaces by UV cured adhesive |
US6234304B1 (en) * | 1998-01-28 | 2001-05-22 | Mol Belting Company | Conveyor belt joint |
WO2010124790A1 (en) * | 2009-04-29 | 2010-11-04 | A. Raymond Et Cie | Device for connecting at least two belts |
US8763208B2 (en) | 2009-04-29 | 2014-07-01 | A. Raymond Et Cie | Device for connecting at least two belts |
US20160354706A1 (en) * | 2014-05-09 | 2016-12-08 | Robert Lyle Thompson | Custom multi-colored images applied to three dimensional products, such as polystyrene post production on an individual basis |
DE102015212745A1 (en) * | 2015-07-08 | 2017-01-12 | Contitech Transportbandsysteme Gmbh | Belt or belt segment |
DE102015212747A1 (en) * | 2015-07-08 | 2017-01-12 | Contitech Transportbandsysteme Gmbh | Belt or belt segment |
EP3501779A1 (en) * | 2017-12-20 | 2019-06-26 | ContiTech Transportbandsysteme GmbH | Vulcanisation press transport system |
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