US3516205A - Shot-blasting apparatus - Google Patents

Shot-blasting apparatus Download PDF

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Publication number
US3516205A
US3516205A US647047A US3516205DA US3516205A US 3516205 A US3516205 A US 3516205A US 647047 A US647047 A US 647047A US 3516205D A US3516205D A US 3516205DA US 3516205 A US3516205 A US 3516205A
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shot
blasting
primary portion
cabinet
side walls
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Expired - Lifetime
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US647047A
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Robert S Thomson
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GUYSON IND EQUIPMENT Ltd
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GUYSON IND EQUIPMENT Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C9/00—Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material

Definitions

  • a cabinet of a shot-blasting apparatus comprising a primary portion having a lower part in the shape of an inverted pyramid constituting the cabinet base and a secondary portion which sits over the primary portion, the primary portion having an upper part which includes a rear wall and a pair of side walls the top edges of which are inclined downwardly towards the front, but having no front wall, the secondary portion having a rear wall which is hinged to the rear wall of the upper part of the primary portion, a front and side walls the lower edges of which are inclined to correspond in inclination to the top edges of the side walls of the upper part of the primary portion and which rest upon such side walls When the secondary portion is closed upon said primary portion.
  • the front of the secondary portion of the cabinet may include a window and access openings fitted with flexible seals for manual operations.
  • the invention relates to shot-blasting apparatus of the kind which includes a cabinet adapted to provide a chamber for accommodating blasting equipment and articles to be dealt with by such equipment.
  • the object of the present invention is the provision of new or improved shot-blasting apparatus and is particularly concerned with the cabinet portion thereof and with related parts in order that apparatus according to the invention possesses considerable advantages over conventional apparatus, advantages which will be hereinafter referred to.
  • shot-blasting apparatus including a cabinet containing shot blasting tool means and having a viewing window so that the shot blasting may be viewed, said cabinet comprising a primary portion made up of a lower part in the shape of an inverted pyramid and an upper part comprising a rear wall and a pair of side walls of which the top edges are inclined downwardly towards the front of the cabinet so that said upper portion is devoid of a front wall, and a secondary portion in the form of a hollow open-bottomed cap which has a rear wall hinged to the rear Wall of the upper part of the primary portion, a front wall and a pair of side walls the lower edges of which are inclined to correspond to the inclination of the top edges of the side walls of the upper part of the primary portion so that said lower edges rest on said upper edges when the cap is hinged to close the upper part of the primary portion.
  • FIG. 1 is a front view of shot-blasting apparatus according to the invention, with the canopy thereof closed.
  • FIG. 2 is a sectional side view of the upper part of the apparatus shown in FIG. 1 on the line IIII of the latter figure, but with the canopy opened. The closed position of the canopy is indicated in broken lines.
  • FIG. 3 is a section of a fragment of the canopy of the apparatus, drawn to large scale.
  • the cabinet of the apparatus comprises a base or primary portion 1, provided with legs 2, and a canopy or secondary portion 3. If desired, the portion 1 could be arranged to be supported on a pedestal of any suitable configuration.
  • the primary portion 1 has a lower of hollow inverted substantially pyramidal shape and an upper part which includes a pair of opposing side Walls 5 and an interconnecting rear wall 6, the top edges of the side walls being inclined downwardly towards the front in such a manner that they terminate at the front so that the uppfr part of the primary portion is devoid of any front wa Hinged to the rear wall 6 of the upper part of the primary portion 1 is the secondary portion 3 in the form of a canopy or cover which is dished and has a top 7 with an inclined panel 8, vertical side Walls 9 whose lower edges are inclined to correspond to inclination of the upper edges of the side walls 5 of the upper part of the primary portion, a vertical front Wall 10 and a similar rear wall 11.
  • the panel 8 contains a transparent observation window 12 and the front wall 10 incorporates a pair of appropriately shaped openings each covered by a flexible sealing member 13 having slits therein for permitting an operator to pass his or her hands into the blast chamber formed when the canopy is closed with the inclined edges of the walls 9 resting on the inclined edges of walls 5, as in FIG. 1.
  • a handle 14 Also secured to the wall 10 is a handle 14 and, if desired, means 3A, 3B may be provided for latching or securing the canopy in a closed position.
  • the amount by which the canopy 3 may be opened may be determined by any suitable means such as by a supporting bracket 15 secured to wall 6, or by lever mechanism indicated at 15A, 15B, 15C. Also, manual opening of the canopy may be assisted by the provision of a counterweight, pneumatic or dash-pot device or by a spring, any of which means may also retain the canopy in its open position.
  • the lower end of the lower part of the primary portion 1 has an opening therein to which is attached one end of a pipe 18A for sucking away abrasive or like shot-blasting material from the interior of the blast chamber of the apparatus for subsequent recirculation in the usual manner.
  • the shot-blasting gun 16 may be controlled by any suitable known kind of valve mechanism which may be manually operated or be operated by foot-pedal 19.
  • valve for controlling the shot-blasting gun 16 it is, however, preferred to link the valve for controlling the shot-blasting gun 16 to the canopy 3 in such a manner that when the canopy is closed the said valve is automatically opened and vice-versa.
  • the valve may be solenoid operated and the energisation of the valve is under the influence of a micros-switch 50 which is actuated by the canopy 3 when same is in the closed position thereby causing the valve to be opened.
  • Shot-blasting apparatus including a cabinet containing shot blasting tool means and having a viewing window so that the shot blasting may be viewed, said cabinet comprising a primary portion made up of a lower part in the shape of an inverted pyramid and an upper part comprising a rear wall and a pair of side walls of which the top edges are inclined downwardly towards the front of the cabinet so that said upper portion is devoid of a front wall, and a secondary portion in the form of a hollow open-bottomed cap which has a rear wall hinged to the rear wall of the upper part of the primary portion, a front wall and a pair of side walls the lower edges of which are inclined to correspond to the inclination of the top edges of the side walls of the upper part of the primary portion so that said lower edges rest on said upper edges when the cap is hinged to close the upper part ofthe primary portion.
  • Apparatus according to claim 1 further including limiting means for limiting the amount by which the secondary portion can be hinged on the primary portion in a direction to open the upper part of the primary portion.
  • Apparatus according to claim 2 wherein said limiting means comprises a bracket attached ot the rear wall of the upper part of the primary portion.
  • Apparatus according to claim 1 further including valve means through which the shot blasting medium is supplied to the tool means and control means controlling the operation of the valve means and hence the supply of shot blasting medium to said tool means.
  • control means is switch means operable by the secondary portion of the cabinet when same is in position closing the upper part of the primary portion so that the valve means can be opened only when the cabinet is closed.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)

Description

J une THOMSON SHOT-BLASTING APPARATUS Filed June 19, 1967 2 Sheets-Sheet 1 //\/l/E/\/7"OP ROBERT S THOM N ATT R. s. THOMSON SHOT-BLASTING Arrmnus June 23, 1970 2 Sheets-Sheet 2 Filed June 19, 1967 lNI/EA/TOP ROBERT S.
THO ON /XALW ATTO Y United States Patent 3,516,205 SHOT-BLASTING APPARATUS Robert S. Thomson, Pool-in-Wharfedale, England, as-
slgnor to Guyson Industrial Equipment Limited, Otley,
Yorkshire, England Filed June 19, 1967, Ser. No. 647,047 Int. Cl. B24c 3/00 US. Cl. 51-8 Claims ABSTRACT OF THE DISCLOSURE A cabinet of a shot-blasting apparatus comprising a primary portion having a lower part in the shape of an inverted pyramid constituting the cabinet base and a secondary portion which sits over the primary portion, the primary portion having an upper part which includes a rear wall and a pair of side walls the top edges of which are inclined downwardly towards the front, but having no front wall, the secondary portion having a rear wall which is hinged to the rear wall of the upper part of the primary portion, a front and side walls the lower edges of which are inclined to correspond in inclination to the top edges of the side walls of the upper part of the primary portion and which rest upon such side walls When the secondary portion is closed upon said primary portion. The front of the secondary portion of the cabinet may include a window and access openings fitted with flexible seals for manual operations.
The invention relates to shot-blasting apparatus of the kind which includes a cabinet adapted to provide a chamber for accommodating blasting equipment and articles to be dealt with by such equipment.
The object of the present invention is the provision of new or improved shot-blasting apparatus and is particularly concerned with the cabinet portion thereof and with related parts in order that apparatus according to the invention possesses considerable advantages over conventional apparatus, advantages which will be hereinafter referred to.
According to the present invention there is provided shot-blasting apparatus including a cabinet containing shot blasting tool means and having a viewing window so that the shot blasting may be viewed, said cabinet comprising a primary portion made up of a lower part in the shape of an inverted pyramid and an upper part comprising a rear wall and a pair of side walls of which the top edges are inclined downwardly towards the front of the cabinet so that said upper portion is devoid of a front wall, and a secondary portion in the form of a hollow open-bottomed cap which has a rear wall hinged to the rear Wall of the upper part of the primary portion, a front wall and a pair of side walls the lower edges of which are inclined to correspond to the inclination of the top edges of the side walls of the upper part of the primary portion so that said lower edges rest on said upper edges when the cap is hinged to close the upper part of the primary portion.
In order that the invention may be fully and clearly comprehended the same will now described with reference to the accompanying drawings, in which:
FIG. 1 is a front view of shot-blasting apparatus according to the invention, with the canopy thereof closed.
FIG. 2 is a sectional side view of the upper part of the apparatus shown in FIG. 1 on the line IIII of the latter figure, but with the canopy opened. The closed position of the canopy is indicated in broken lines.
FIG. 3 is a section of a fragment of the canopy of the apparatus, drawn to large scale.
The cabinet of the apparatus comprises a base or primary portion 1, provided with legs 2, and a canopy or secondary portion 3. If desired, the portion 1 could be arranged to be supported on a pedestal of any suitable configuration.
The primary portion 1 has a lower of hollow inverted substantially pyramidal shape and an upper part which includes a pair of opposing side Walls 5 and an interconnecting rear wall 6, the top edges of the side walls being inclined downwardly towards the front in such a manner that they terminate at the front so that the uppfr part of the primary portion is devoid of any front wa Hinged to the rear wall 6 of the upper part of the primary portion 1 is the secondary portion 3 in the form of a canopy or cover which is dished and has a top 7 with an inclined panel 8, vertical side Walls 9 whose lower edges are inclined to correspond to inclination of the upper edges of the side walls 5 of the upper part of the primary portion, a vertical front Wall 10 and a similar rear wall 11.
The panel 8 contains a transparent observation window 12 and the front wall 10 incorporates a pair of appropriately shaped openings each covered by a flexible sealing member 13 having slits therein for permitting an operator to pass his or her hands into the blast chamber formed when the canopy is closed with the inclined edges of the walls 9 resting on the inclined edges of walls 5, as in FIG. 1. Also secured to the wall 10 is a handle 14 and, if desired, means 3A, 3B may be provided for latching or securing the canopy in a closed position.
The amount by which the canopy 3 may be opened may be determined by any suitable means such as by a supporting bracket 15 secured to wall 6, or by lever mechanism indicated at 15A, 15B, 15C. Also, manual opening of the canopy may be assisted by the provision of a counterweight, pneumatic or dash-pot device or by a spring, any of which means may also retain the canopy in its open position.
Housed in the shot-blasting chamber of the apparatus is a suitable shot-blasting gun 16 and compressed air and abrasive supply pipes 17 and 18. The lower end of the lower part of the primary portion 1 has an opening therein to which is attached one end of a pipe 18A for sucking away abrasive or like shot-blasting material from the interior of the blast chamber of the apparatus for subsequent recirculation in the usual manner.
The shot-blasting gun 16 may be controlled by any suitable known kind of valve mechanism which may be manually operated or be operated by foot-pedal 19.
It is, however, preferred to link the valve for controlling the shot-blasting gun 16 to the canopy 3 in such a manner that when the canopy is closed the said valve is automatically opened and vice-versa. To this end the valve may be solenoid operated and the energisation of the valve is under the influence of a micros-switch 50 which is actuated by the canopy 3 when same is in the closed position thereby causing the valve to be opened.
I claim:
1. Shot-blasting apparatus including a cabinet containing shot blasting tool means and having a viewing window so that the shot blasting may be viewed, said cabinet comprising a primary portion made up of a lower part in the shape of an inverted pyramid and an upper part comprising a rear wall and a pair of side walls of which the top edges are inclined downwardly towards the front of the cabinet so that said upper portion is devoid of a front wall, and a secondary portion in the form of a hollow open-bottomed cap which has a rear wall hinged to the rear wall of the upper part of the primary portion, a front wall and a pair of side walls the lower edges of which are inclined to correspond to the inclination of the top edges of the side walls of the upper part of the primary portion so that said lower edges rest on said upper edges when the cap is hinged to close the upper part ofthe primary portion.
2. Apparatus according to claim 1, further including limiting means for limiting the amount by which the secondary portion can be hinged on the primary portion in a direction to open the upper part of the primary portion.
3. Apparatus according to claim 2, wherein said limiting means comprises a bracket attached ot the rear wall of the upper part of the primary portion.
4. Apparatus according to claim 2, wherein said limiting means comprises a lever mechanism connected between said prmiary and secondary portions.
5. Apparatus according to claim 1, further including valve means through which the shot blasting medium is supplied to the tool means and control means controlling the operation of the valve means and hence the supply of shot blasting medium to said tool means.
6. Apparatus according to claim 5, wherein said control means is switch means operable by the secondary portion of the cabinet when same is in position closing the upper part of the primary portion so that the valve means can be opened only when the cabinet is closed.
7. Apparatus according to claim 1, wherein the shot blasting tool means is mounted above the inclined top edges of the upper part of the primary portion so that such tool is completely exposed for acccess when the secondary portion is hinged to the open position.
8. Apparatus according to claim 1, wherein the lower part of the primary portion at the bottom thereof, is provided with an opening adapted for coupling to means for sucking shot-blasting medium from said lower part for recirculation in the apparatus.
9. Shot-blasting apparatus according to claim 1, wherein said cabinet further including openings provided with flexible seals which enable insertion of an operators hands into the cabinet during operation of the apparatus yet seal around his arms to prevent loss of shot blasting medium through the opening.
10. Shot-blasting apparatus according to claim 1, wherein the lower edges of the side walls and the front wall of the secondary portion are directed downwardly shot blasting medium will not collect therein.
References Cited UNITED STATES PATENTS 2,678,520 5/1954 Jewett 518 3,069,810 12/1962 Blackman et a1. 5 18 3,103,765 9/1963 Nolan 51-8 3,300,902 1/1967 Dockery 51-8 3,352,063 11/1967 Eppler 518 HAROLD D. WHITEHEAD, Primary Examiner
US647047A 1967-06-19 1967-06-19 Shot-blasting apparatus Expired - Lifetime US3516205A (en)

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3906674A (en) * 1973-12-13 1975-09-23 Lowell D Stone Valve cleaner
US4098033A (en) * 1977-09-29 1978-07-04 Mann Douglass M Sand blasting apparatus
US4300318A (en) * 1980-01-28 1981-11-17 Knox Manufacturing Co. Cabinet for use in abrasive blasting system
US5323562A (en) * 1991-07-11 1994-06-28 Kaltenbach & Voight Gmbh & Co. Machining device for machining precision, in particular dental, workpieces in a machining chamber surrounded by a housing
US5460564A (en) * 1992-10-08 1995-10-24 Easthill Group, Inc. Sandblasting cabinet assembly
US20100068976A1 (en) * 2008-09-12 2010-03-18 Boris Zelenko Systems and methods for preparation of conductors for electric motors
USD759134S1 (en) * 2014-11-26 2016-06-14 Renfert Gmbh Blasting device
USD762749S1 (en) * 2014-07-18 2016-08-02 Digital Metal Ab Surface-treating appliance
US9623539B2 (en) 2014-07-07 2017-04-18 Media Blast & Abrasive, Inc. Carving cabinet having protective carving barrier
US20190350191A1 (en) * 2018-05-21 2019-11-21 Brian K. Noël Multi-use penetrable hunting blind apparatus
US10556320B2 (en) 2017-01-07 2020-02-11 James T. Carnathan Computerized method and apparatus for automated sand blasting
USD897613S1 (en) * 2016-07-21 2020-09-29 AUTO ELEX Co., LTD Incubator for animal
US11633685B2 (en) 2017-12-29 2023-04-25 Media Blast & Abrasive, Inc. Adjustable abrasive and dust separator

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2678520A (en) * 1952-08-05 1954-05-18 American Metaseal Mfg Corp Abrasive blast cabinet and appurtenant apparatus
US3069810A (en) * 1959-05-22 1962-12-25 American Tech Mach Co Abrasive tool
US3103765A (en) * 1959-09-25 1963-09-17 Owens Illinois Glass Co Slurry-blasting apparatus
US3300902A (en) * 1964-07-13 1967-01-31 Lerner B Dockery Dry abrasive honing device
US3352063A (en) * 1965-06-10 1967-11-14 Arthur H Eppler Polishing apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2678520A (en) * 1952-08-05 1954-05-18 American Metaseal Mfg Corp Abrasive blast cabinet and appurtenant apparatus
US3069810A (en) * 1959-05-22 1962-12-25 American Tech Mach Co Abrasive tool
US3103765A (en) * 1959-09-25 1963-09-17 Owens Illinois Glass Co Slurry-blasting apparatus
US3300902A (en) * 1964-07-13 1967-01-31 Lerner B Dockery Dry abrasive honing device
US3352063A (en) * 1965-06-10 1967-11-14 Arthur H Eppler Polishing apparatus

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3906674A (en) * 1973-12-13 1975-09-23 Lowell D Stone Valve cleaner
US4098033A (en) * 1977-09-29 1978-07-04 Mann Douglass M Sand blasting apparatus
US4300318A (en) * 1980-01-28 1981-11-17 Knox Manufacturing Co. Cabinet for use in abrasive blasting system
US5323562A (en) * 1991-07-11 1994-06-28 Kaltenbach & Voight Gmbh & Co. Machining device for machining precision, in particular dental, workpieces in a machining chamber surrounded by a housing
US5431593A (en) * 1991-07-11 1995-07-11 Kaltenbach & Voigt Gmbh & Co. Machining device for machining precision, in particular dental, workpieces in a machining chamber surrounded by a housing
US5460564A (en) * 1992-10-08 1995-10-24 Easthill Group, Inc. Sandblasting cabinet assembly
US20100068976A1 (en) * 2008-09-12 2010-03-18 Boris Zelenko Systems and methods for preparation of conductors for electric motors
US9623539B2 (en) 2014-07-07 2017-04-18 Media Blast & Abrasive, Inc. Carving cabinet having protective carving barrier
USD762749S1 (en) * 2014-07-18 2016-08-02 Digital Metal Ab Surface-treating appliance
USD759134S1 (en) * 2014-11-26 2016-06-14 Renfert Gmbh Blasting device
USD897613S1 (en) * 2016-07-21 2020-09-29 AUTO ELEX Co., LTD Incubator for animal
US10556320B2 (en) 2017-01-07 2020-02-11 James T. Carnathan Computerized method and apparatus for automated sand blasting
US11633685B2 (en) 2017-12-29 2023-04-25 Media Blast & Abrasive, Inc. Adjustable abrasive and dust separator
US20190350191A1 (en) * 2018-05-21 2019-11-21 Brian K. Noël Multi-use penetrable hunting blind apparatus
US10750737B2 (en) * 2018-05-21 2020-08-25 Brian K. Noël Multi-use penetrable hunting blind apparatus

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