GB1183872A - The Forming of Sheets of Thermoplastics Material - Google Patents
The Forming of Sheets of Thermoplastics MaterialInfo
- Publication number
- GB1183872A GB1183872A GB1633467A GB1633467A GB1183872A GB 1183872 A GB1183872 A GB 1183872A GB 1633467 A GB1633467 A GB 1633467A GB 1633467 A GB1633467 A GB 1633467A GB 1183872 A GB1183872 A GB 1183872A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sheet
- plug
- spikes
- former
- forming
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/24—Perforating by needles or pins
-
- 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
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/10—Forming by pressure difference, e.g. vacuum
-
- 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
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/26—Component parts, details or accessories; Auxiliary operations
- B29C51/266—Auxiliary operations after the thermoforming operation
- B29C51/268—Cutting, rearranging and joining the cut parts
-
- 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
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/26—Component parts, details or accessories; Auxiliary operations
- B29C51/30—Moulds
- B29C51/32—Moulds having cutting means
-
- 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
- B29L2031/737—Articles provided with holes, e.g. grids, sieves
Abstract
1,183,872. Sheet forming. STOREY BROS. & CO. Ltd. 3 July, 1968 [10 April, 1967], No. 16334/67. Heading B5A. A thermoplastic sheet simulating a natural leather is formed by shaping a normally impervious thermoplastic sheet by a vacuum or equivalent fluid pressure process over a former 14 and punching the formed sheet 22 while still over the former by pressing against it a plug 18 provided with spikes or other cutting edges so as to make a large number of small perforations in the surface of the formed sheet 22. The plug 24 (Fig. 6) comprises a backing plate 24 and a resilient pad 30, e.g. of polyurethane foam, which normally marks spikes 28 so that the plug may first be used to form the sheet and then on subsequent harder pressure the spikes are exposed to puncture the sheet. The plug 18 may be engraved so that the formed sheet can be embossed (Fig. 7, not shown). The thermoplastic sheet material may be polyvinyl chloride.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1633467A GB1183872A (en) | 1967-04-10 | 1967-04-10 | The Forming of Sheets of Thermoplastics Material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1633467A GB1183872A (en) | 1967-04-10 | 1967-04-10 | The Forming of Sheets of Thermoplastics Material |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1183872A true GB1183872A (en) | 1970-03-11 |
Family
ID=10075419
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1633467A Expired GB1183872A (en) | 1967-04-10 | 1967-04-10 | The Forming of Sheets of Thermoplastics Material |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1183872A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2474943A1 (en) * | 1980-02-06 | 1981-08-07 | Wallsten Hans | METHODS FOR MANUFACTURING RECEPTACLES, PARTICULARLY OF THE DISPOSABLE TYPE, AND RECEPTACLES THUS OBTAINED |
-
1967
- 1967-04-10 GB GB1633467A patent/GB1183872A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2474943A1 (en) * | 1980-02-06 | 1981-08-07 | Wallsten Hans | METHODS FOR MANUFACTURING RECEPTACLES, PARTICULARLY OF THE DISPOSABLE TYPE, AND RECEPTACLES THUS OBTAINED |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |