[go: up one dir, main page]

GB649637A - Improvements relating to horizontal boring machines - Google Patents

Improvements relating to horizontal boring machines

Info

Publication number
GB649637A
GB649637A GB1730849A GB1730849A GB649637A GB 649637 A GB649637 A GB 649637A GB 1730849 A GB1730849 A GB 1730849A GB 1730849 A GB1730849 A GB 1730849A GB 649637 A GB649637 A GB 649637A
Authority
GB
United Kingdom
Prior art keywords
scale
horizontal boring
improvements relating
boring machines
kearns
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
GB1730849A
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.)
H W Kearns & Co Ltd
HENRY WARD LIONEL KEARNS
Original Assignee
H W Kearns & Co Ltd
HENRY WARD LIONEL KEARNS
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 H W Kearns & Co Ltd, HENRY WARD LIONEL KEARNS filed Critical H W Kearns & Co Ltd
Priority to GB1730849A priority Critical patent/GB649637A/en
Publication of GB649637A publication Critical patent/GB649637A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
    • B23Q17/24—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

649,637. Scale-reading apparatus. KEARNS & CO., Ltd., H. W., and KEARNS, Sir H. W. L. June 30, 1949, No. 17308. [Class 97 (i)] [Also in Group XXII] In a horizontal boring-machine (see Group XXII), an image of a vertically-adjustable scale g is projected by means of a lamp p and mirrors q, r and t on to a translucent screen l bearing a vernier scale. The bar g is initially adjusted so that its zero and that of the vernier are coincident. Movements of the scale are then viewed through a window n by means of a mirror o.
GB1730849A 1949-06-30 1949-06-30 Improvements relating to horizontal boring machines Expired GB649637A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1730849A GB649637A (en) 1949-06-30 1949-06-30 Improvements relating to horizontal boring machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1730849A GB649637A (en) 1949-06-30 1949-06-30 Improvements relating to horizontal boring machines

Publications (1)

Publication Number Publication Date
GB649637A true GB649637A (en) 1951-01-31

Family

ID=10092900

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1730849A Expired GB649637A (en) 1949-06-30 1949-06-30 Improvements relating to horizontal boring machines

Country Status (1)

Country Link
GB (1) GB649637A (en)

Similar Documents

Publication Publication Date Title
GB1476019A (en) Optical transformation drawing apparatus
GB649637A (en) Improvements relating to horizontal boring machines
GB1511875A (en) Method relating to animated cartoon characters
GB1215598A (en) Motion picture projector
GB1130781A (en) Micro-film viewing machine
GB758706A (en) Improvements in picture hooks
GB1520305A (en) Camera arrangment
GB1360619A (en) Apparatus for testing beams of light
GB1351048A (en) Setting device for presetting at least one tool arranged in a tool carrier of a machine tool
FR1049441A (en) Method for producing photographic images
JPS52125236A (en) Letter display system in tv scan character display
GB1249665A (en) Apparatus for marking film
GB476850A (en) Improvements in or relating to stroboscopes
GB693144A (en) Circular-linking machine
GB1406393A (en) Optical panoramic projection apparatus
JPS52137938A (en) Character reading device
GB787234A (en) Improvements in or relating to sewing machines
GB755740A (en) Improvements in or connected with blackboards and easels
GB1285995A (en) Instruments for use in setting roller guides
GB719553A (en) A television viewing device
GB751800A (en) Improvements in or relating to photogrammetric plotting devices
JPS51140283A (en) Light-ray type safety device for machine tool
JPS51150389A (en) Light resistance tester equipped with reflex mirrors in the luminous s ource unit
GB808671A (en) Improvements relating to television receiving apparatus
GB873790A (en) Improvements in or relating to apparatus for the comparison of objects