GB113354A - Improvements in or connected with Cramping Means to be employed in the Manufacture of Aircraft Propellers and like Laminated Devices. - Google Patents

Improvements in or connected with Cramping Means to be employed in the Manufacture of Aircraft Propellers and like Laminated Devices.

Info

Publication number
GB113354A
GB113354A GB438517A GB438517A GB113354A GB 113354 A GB113354 A GB 113354A GB 438517 A GB438517 A GB 438517A GB 438517 A GB438517 A GB 438517A GB 113354 A GB113354 A GB 113354A
Authority
GB
United Kingdom
Prior art keywords
bar
feet
base
rods
presser
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
Application number
GB438517A
Inventor
David George Hamilton
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB438517A priority Critical patent/GB113354A/en
Publication of GB113354A publication Critical patent/GB113354A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27D—WORKING VENEER OR PLYWOOD
    • B27D3/00—Veneer presses; Press plates; Plywood presses

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Transmission Devices (AREA)

Abstract

113,354. Hamilton, D. G. March 26, 1917. Cramps.-A cramp for use in glueing together laminae for the manufacture of screw propellers for aircraft and like laminated devices, comprises a base and a presser-bar provided with a series of spring pressing-feet for pressing the work down on to the base, and means for depressing the presser-bar. As shown in Figs. 1 and 2, the base a is a movable one adapted to rest on a bench &c. and is provided with feet a<1>. The laminations d to be glued together are placed on a plate or carrier c laid loosely on the base a. The presser-bar b, which has a central enlargement b<1>, carries a series of spring feet e, or they might be actual springs, which rest on the work d, and pressure is applied by cams or screws &c., such as rods g pivoted at g<2> to the base and provided with pressure-applying nuts &c. g<1>. An additional pressure bolt f, f<1> is shown at the centre of the propeller boss. The pressing-feet e are shown carried by rods e<2>, the heads of which are in recesses in the undersides of the feet, springs being placed on the rods e<2> as shown. The rods e<2> pass through holes in the bar b and are provided with nuts e<4> on their upper ends. The base a may form part of a bench or other fixed structure instead of being separate and movable as shown. The feet e are shown in Fig. 2 placed in line along the centre of the bar b, and on each side of the central bolt f. When it is desired to set off some of the feet e from the general line they may be mounted adjustably in the bar b. Fig. 10 shows an arrangement in which the rod e<2>, e<2>* carrying the foot is telescopic and its upper end is fixed in a block e<12> slidable in a transverse guide e<13> fixed on the underside of the bar b. A pointer e'‹ on the block e<12> moves over an index on one of the flanges of the guide e<13>, and a set-screw e<11> fixes the block when adjusted. In a modification, the telescopic rod e<2>, e<2>* is carried by an arm pivoted on the underside of the bar b, an index and fixing screw being provided for adjusting the position of the rod and its foot.
GB438517A 1917-03-26 1917-03-26 Improvements in or connected with Cramping Means to be employed in the Manufacture of Aircraft Propellers and like Laminated Devices. Expired GB113354A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB438517A GB113354A (en) 1917-03-26 1917-03-26 Improvements in or connected with Cramping Means to be employed in the Manufacture of Aircraft Propellers and like Laminated Devices.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB438517A GB113354A (en) 1917-03-26 1917-03-26 Improvements in or connected with Cramping Means to be employed in the Manufacture of Aircraft Propellers and like Laminated Devices.

Publications (1)

Publication Number Publication Date
GB113354A true GB113354A (en) 1918-02-21

Family

ID=32244922

Family Applications (1)

Application Number Title Priority Date Filing Date
GB438517A Expired GB113354A (en) 1917-03-26 1917-03-26 Improvements in or connected with Cramping Means to be employed in the Manufacture of Aircraft Propellers and like Laminated Devices.

Country Status (1)

Country Link
GB (1) GB113354A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2791259A (en) * 1954-02-12 1957-05-07 Stephen I Griglak Instrument for straightening bent lugs of a type casting matrix
CN105128099A (en) * 2015-08-31 2015-12-09 安徽宏宇竹业科技股份有限公司 Spring re-pressing machine for laminating bamboo boards
CN105128100A (en) * 2015-08-31 2015-12-09 安徽宏宇竹业科技股份有限公司 Pneumatic repressing machine for laminating bamboo board
CN105196373A (en) * 2015-08-31 2015-12-30 安徽宏宇竹业科技股份有限公司 Laminating and glue bonding method for bamboo board
CN111745754A (en) * 2020-07-27 2020-10-09 秦泽亮 Automatic pressing and separating device for plywood

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2791259A (en) * 1954-02-12 1957-05-07 Stephen I Griglak Instrument for straightening bent lugs of a type casting matrix
CN105128099A (en) * 2015-08-31 2015-12-09 安徽宏宇竹业科技股份有限公司 Spring re-pressing machine for laminating bamboo boards
CN105128100A (en) * 2015-08-31 2015-12-09 安徽宏宇竹业科技股份有限公司 Pneumatic repressing machine for laminating bamboo board
CN105196373A (en) * 2015-08-31 2015-12-30 安徽宏宇竹业科技股份有限公司 Laminating and glue bonding method for bamboo board
CN111745754A (en) * 2020-07-27 2020-10-09 秦泽亮 Automatic pressing and separating device for plywood

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