US1854942A - X-ray shielding device - Google Patents

X-ray shielding device Download PDF

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Publication number
US1854942A
US1854942A US521747A US52174731A US1854942A US 1854942 A US1854942 A US 1854942A US 521747 A US521747 A US 521747A US 52174731 A US52174731 A US 52174731A US 1854942 A US1854942 A US 1854942A
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United States
Prior art keywords
lead
rays
panels
holes
sheet
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Expired - Lifetime
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US521747A
Inventor
Lapof Samuel
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Bar-Ray Products Inc
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Bar-Ray Products Inc
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Publication date
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Priority to US521747A priority Critical patent/US1854942A/en
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Publication of US1854942A publication Critical patent/US1854942A/en
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    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F3/00—Shielding characterised by its physical form, e.g. granules, or shape of the material

Definitions

  • This invention relates to X-ray shielding devices, and more particularly to means for preventing the passage of X-rays through doors, partitions, panels, etc., made of wood,
  • a further object is the provision of a method of attaching a lead sheet to a panel of fibrous material or the like or other material so that there will be no areas through which X-rays may pass.
  • the ligure shows a corner of a device which is made from several layers of material such as wood or other suitable materials.
  • the structure comprises two boards or panels l, of wood or other suitable material, separated by a sheet 2, of lead. Holes areV bored through the boards and lead sheet and countersunk, after which the holes are lled with lead plugs 3.
  • the flanges at the ends of the plugs due to the countersunk portions of the holes, presents a. complete lead shield, even vthough .there may be minute spa-ces at the juncture of the plugs and the lead sheet.
  • the flange heads on the plugs have a riveting action to firmly bind the boards 1 and the lead sheet 2 together.
  • a device for preventing the passage of X-rays comprising two boards of fibrous ma-V terial, a sheet of lead positioned between the boards, said boards and sheet having holes bored through them, the ends of the holes being countersunlr, and integral lead plugs completely filling the holes.
  • a device for preventing the passage of X-rays comprising two panels, a sheet of lead positioned between the panels, said panels and sheet having communicating 95 holes, and integral lead plugs completely lling the holes, the plugs having enlarged heads of greater diameter than the holes.
  • a device for preventing the passage of X-rays comprising a panel, a sheet of ma- 100 terial impervious to X-rays mounted on the panel, said panel and sheet having communi eating holes, and integral plugs of material impervious to X-rays llinof the holes, said 5 plugs having enlarged heads of greater diameter than the holes.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Laminated Bodies (AREA)

Description

April 19, 1932. s. LAPoF X-RAY SHIELDING DEVICE Filed March ll, 1931 Patented pr. 19, 1932 UNITED STATES ATENT OFFICE SAMUEL LAPOF, OF NEW YORK, N. Y., ASSIGNOR TO BAR-RAY PRODUCTS, INC., OF NEW YORK, N. Y., A CORPORATION X-RAY SHELDING DEWCE Application filed March 11, 1931. Serial No. 521,747.
This invention relates to X-ray shielding devices, and more particularly to means for preventing the passage of X-rays through doors, partitions, panels, etc., made of wood,
6 and other materials.
It is well known that lead is impervious to X-rays, and heretofore, it has been the practice to shield doors, panels, and the lilre, by covering such articles with sheets of lead.
10 However, such a method of shielding has been objectionable in that the lead sheet is secured to the wood or other material by means of common wire nails or screws, which are made from metals which are not impervious to the X-rays, with the result that there are numerous apertures in the lead sheet through which the X-rays may freely pass.
It is, therefore, an object of this invention to provide a door, panel or the like, made from wood or other materials, which is provided with means to render it absolutely impervious to X-rays.
A further object is the provision of a method of attaching a lead sheet to a panel of fibrous material or the like or other material so that there will be no areas through which X-rays may pass.
These and other objects are attained by the novel construction and combination of parts hereinafter described and illustrated in the accompanying drawing, forming an essential part of this disclosure, and in which the figure is a perspective view in section of a corner of a device embodying the invention.
Referring to the drawing, the ligure shows a corner of a device which is made from several layers of material such as wood or other suitable materials. As shown, the structure comprises two boards or panels l, of wood or other suitable material, separated by a sheet 2, of lead. Holes areV bored through the boards and lead sheet and countersunk, after which the holes are lled with lead plugs 3.
As will be clearly seen, the flanges at the ends of the plugs, due to the countersunk portions of the holes, presents a. complete lead shield, even vthough .there may be minute spa-ces at the juncture of the plugs and the lead sheet. At the same time the flange heads on the plugs have a riveting action to firmly bind the boards 1 and the lead sheet 2 together.
rlChe outer surfaces of the boards or panels l and the plugs 3 may be then concealed by a 55 veneer Il, and the edges of the panels finished by 1strips 5 of wood or other suitable materia From the above description it will be seen that there has been provided a simple and 6o ei'l'ective device for preventing the passage of X-rays. The structure described may be used for doors, panels, etc., and in any situation where it is necessary to prevent the passage of X-rays through articles made of wood, or other materials.
lWhile boards or panels, l, have been described as being made of wood or similar materials, it is understood that such boards or panels may be made of various metals such as steel, copper, etc.; or the boards or panels may be made of any suitable material, without departing from the spirit of the invention.
The foregoing disclosure is to be regarded as descriptive and illustrative only, and not as restrictive or limitative of the invention, of which embodiments may be constructed including modifications without departing from the general scope herein indicated and denoted in the appended claims.
Having thus described the invention, what is claimed as new and desired to protect by Letters Patent, is
1. A device for preventing the passage of X-rays, comprising two boards of fibrous ma-V terial, a sheet of lead positioned between the boards, said boards and sheet having holes bored through them, the ends of the holes being countersunlr, and integral lead plugs completely filling the holes.
2. A device for preventing the passage of X-rays, comprising two panels, a sheet of lead positioned between the panels, said panels and sheet having communicating 95 holes, and integral lead plugs completely lling the holes, the plugs having enlarged heads of greater diameter than the holes.
3. A device for preventing the passage of X-rays, comprising a panel, a sheet of ma- 100 terial impervious to X-rays mounted on the panel, said panel and sheet having communi eating holes, and integral plugs of material impervious to X-rays llinof the holes, said 5 plugs having enlarged heads of greater diameter than the holes.
Signed at New York city, in the county of New York and State of New York, this 26th day of February, A. D. 1930,. Y SAMUEL LAPOF.
CFL
US521747A 1931-03-11 1931-03-11 X-ray shielding device Expired - Lifetime US1854942A (en)

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US521747A US1854942A (en) 1931-03-11 1931-03-11 X-ray shielding device

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2858451A (en) * 1955-03-07 1958-10-28 Herman I Silversher Laminar ray shielding materials
US3212809A (en) * 1961-10-12 1965-10-19 Johnston Herbert Charles Manufacture of motor vehicles for additional protection from radiation hazards
US3216167A (en) * 1961-05-22 1965-11-09 United States Gypsum Co Prefabricated panel
DE1208467B (en) * 1956-12-14 1966-01-05 Gertrud Hahn Geb Kullmann Arrangement to improve the climatic conditions in rooms by means of electrodes connected to a high direct voltage
US4967527A (en) * 1985-09-23 1990-11-06 Metalines, Inc. Expansion joint fire barrier systems
US5379332A (en) * 1992-04-28 1995-01-03 Jacobson; Earl B. Launderable and replaceable lead blanket cover system
WO1997022125A1 (en) * 1995-12-07 1997-06-19 Mussman Robert L Radiation shielding
US20050166473A1 (en) * 2004-01-30 2005-08-04 Siemens Aktiengesellschaft Facility for setting up and system testing of x-ray systems
US20100212243A1 (en) * 2009-02-20 2010-08-26 David Allen Lesoine Lead sheet suspension stud

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2858451A (en) * 1955-03-07 1958-10-28 Herman I Silversher Laminar ray shielding materials
DE1208467B (en) * 1956-12-14 1966-01-05 Gertrud Hahn Geb Kullmann Arrangement to improve the climatic conditions in rooms by means of electrodes connected to a high direct voltage
US3216167A (en) * 1961-05-22 1965-11-09 United States Gypsum Co Prefabricated panel
US3212809A (en) * 1961-10-12 1965-10-19 Johnston Herbert Charles Manufacture of motor vehicles for additional protection from radiation hazards
US4967527A (en) * 1985-09-23 1990-11-06 Metalines, Inc. Expansion joint fire barrier systems
US5379332A (en) * 1992-04-28 1995-01-03 Jacobson; Earl B. Launderable and replaceable lead blanket cover system
WO1997022125A1 (en) * 1995-12-07 1997-06-19 Mussman Robert L Radiation shielding
US5883394A (en) * 1995-12-07 1999-03-16 Mussman; Robert L. Radiation shields
US20050166473A1 (en) * 2004-01-30 2005-08-04 Siemens Aktiengesellschaft Facility for setting up and system testing of x-ray systems
US7495247B2 (en) * 2004-01-30 2009-02-24 Siemens Atiengesellschaft Facility for setting up and system testing of x-ray systems
US20100212243A1 (en) * 2009-02-20 2010-08-26 David Allen Lesoine Lead sheet suspension stud

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