US862418A

US862418A - Adjustable and portable false work for arches.

Info

Publication number: US862418A
Application number: US34344506A
Authority: US
Inventors: Jacob E Street
Original assignee: Individual
Current assignee: Individual
Priority date: 1906-11-14
Filing date: 1906-11-14
Publication date: 1907-08-06
Anticipated expiration: 1924-08-06

Description

' PATENTE'DAUG. 6, 190' J. E. STREET. RTABLE FALSE WORK FOR ARGHES. APPLICATION FILED NOV. 14. 1906.

ADJUSTABLE AND P0 Q Av 52 M Jam? 5 Street, /j

Invent 1-": minus rzrnrs UN TED STATES PATENT onnron.

JACOB E. STREET, OF SAN FERNANDO, CALIFORNIA, ASSIGNO'R or ONE-HALF To RIGHARl) WILLIAM MARTIN, OF Los ANGELES, CALIFORNIA.

ADJUSTABLE AND PORTABLE FALSE WORK FOR ARGHES.

To all whom it may concern:

Be it known that I, .lacon E. STREET, a citizen of the United States, residing at San Fernando, in the county blocks, solid concrete, or other material in an BifiClGIll;

manner at less cost of time, labor and expense than heretofore possible; to enable constructors to line railway and other tunnels with stone, concrete blocks, or other material at small expense of time and labor; to enable railways to replace wooden linings'in their tunnels a. practicable way without interfering with traflic through the tunnel; and to provide portable means adapted to be transported in.knock-down form on railway cars for the construction of lining in railway tunnels and other arches.

The accompanying drawings illustrate the invention:

Figure 1 is an elevation of the apparatus embodying this invention as it appears in use for replacing withconcrete blocks the wooden lining in a railway tunnel 1 without interruption of the usual trafiic. Dotted lines 25 indicate the position of parts preparatory to withdrawing the apparatus from the tunnel to allow a train to pass. Fig. 2 is a fragmental plan view partially in section to expose parts which would otherwise be hidden. Lines 11;, Fig. 1, indicate the lines of section. Fig. 3 is a vertical section on line x Figs. 1 and 2, cutting axiall'ythrough a liinge and adjustable side arm.

1 designates a portable base in the form of a platform 1 railway car, mounted on wheels 2 running on rails 3.

4 in a general way designates extensible supporting means carried by said'portable base 1 and arranged to adjustably support an arch form indicated in a general way by the character 5. Said form is preferably sectional, comprising a crown section 6 and two spring sections 7 which are hinged to the opposite sides of the crown section by pins 8. The extensible supporting means 4 comprise anadjustable crown support 9 and two adjustable spring supports 10. The crown and spring sections are preferably flexible, being bendable to a suflicient extent to allow the same to conform to the form of the arch within an indefinite limit of adjustment, and to allow the arch-form to be contracted when the supports are adjusted for that purpose.

The crown support and spring supports may be variously constructed 'of suitable mechanical means for bringing the crown and spring sections of the arch form to an appropriate position above the portable base to afford a support for the structural material of the arch. Each of said adjustable supports comprises a threaded journaled base. The adjustable crown support 9 and the adjustable spring supports 10 are preferably in the Specification of Letters Patent.

- Application filed Nov mb r 14.1906. Serial No. 348,445.

Patented Aug. 6, 1907.

V form of T jacks in which 11 is the supporting '1 of the 'jacks.

12 designates screw rods; l3, the burs or shoulders on which rest U-heads 14 which are bolted, riyeted, or otherwise secured to the respective sections of the arch form.

'15 designates the head burs on the screw-rods above the base of the U-heads for securing the screw-rods in place.

l6 designates jack levers to turn the screw-rods to raise and lower the arch form sections. 5

17 designates U-bolts securing the We of the jacks in place. Duplicate and triplicate parts are indicated by In practical use, as for instance in constructing the lining in a railway tunnel without interfering with traffic, the constructor will run the portable base 1 along the track 3' to the appropriate place at a time placed in position on the arch form ment mortarg i v The work of adjusting the form to the appropriate position consumes but a very few minutes, so that the workmen may at once proceed to lay a course of blocks. These may be laid with broken joints in 'WGll-kllOWIl manner, leaving each alternate block projecting beyond or in front of the arch form. If sufficient time remains for the workmen to'shift the machine and complete another course, the-workmen will turn the screws 12 to lower the arch forin' and will then shift the base 1 along the track the width of the arch-form, and will then again adjust the archform to the form of the arch, and thereupon another course will be laid, and so on until the time approaches for a train topass. Then the screws will be turned to lower the form, and the car will be run out of the' tunnel and side-tracked to allow the train to pass, and immediately thereafter the apparatus may be again brought into position in the tunnel, again adjusted, and the work immediately proceed as before.-

The sections of the arch formmay be made of any suitable material, as for instance, boiler iron, heavy galvanized plate iron, or steel, and the like, the same being appropriately curved to conform to' the desired shape of the arch. i

It is to be understood that in constructing the liningit is advisable to construct the vertical portions of the lining ahead of the arch construction, so that all that remains to be done while the apparatus is in use is to simply turn the arch.

corresponding numbers with the addition of an index.

when no trains are du, and when the arch form has been brought to the appropriate place, [the screw rods will} be turned to bring the arch form into the appropriate/ position and form-to support the structural material ofi which the tunnel lining is to be made. -In case, for-i,

instance, concrete blocks are to be used, thesewill' be I 5 and laid with ceso The r-iaek's a or slotted base 18 through which the screw-rods project downward so as to allow the arch-form to be lowered toward the body of the car so that it may be trans ported along the road through bridges and tunnels without dismantling. In case further contraction of the apparatus is required for storage or transportation, this may be accomplished by removing the pins 8, removing the screw-rods from the Tbase, or in any other way dismantling the machine.

The crown form section 6 and spring form sections.

7, 7, may be of bendable material, as boiler iron for instance, so that when the operators desire to shift the apparatus they may screw the spring supports 10, 10 down further than they screw the crown support 9, and thereupon the crown section 6 may bend so as to allow the spring sections to be drawn away slightly from the walls of the lining. However, by setting the spring supports 10, 10 outward beyond the pivots between said spring supports and the crown support, the same effect may be secured without bending the crown section; and in the act of lowering the arch form the spring supports may first be screwed down independently of the crown support, thus bringing the same away from the spring and side walls of the arch, and then the crown support may be screwed down. A small adjustment of parts in this manner will be suflicient to release the arch form from the arch and allow the apparatus to be shifted, whereupon the operators may first adjust the crown section to the appropriate position and then adjust the spring sections to their. appropriate positions, whereupon another course may be laid, and so on.

It is to be understood that I do not limit myself to the use of the particular means herein shown as being preferable. Various equivalents may readily suggest themselves to those versed in the art, and I regard preferably mounted on a'mo'rtised' the end or said screw-rods above the II-heads below the arch form, and shoulders on said rods below said U-heads and a base in which said T-jacks are journaled.

3. A truck, three supports adjustable as to length journalcd on said truck to swing sidewise thereof, and an arch form comprising three sections hinged together, said sections respectively supported by said supports.

4. A truck, a support adjustable as to length mounted on said truck, a crown section of an arch form on said support. side supports adjustable as to length and jour' nalcd on the truck to swing toward and from the center support and each provided at its top with a bracket, spring arch sections on said brackets respectively, and means for detachably fastening thespring arch sections to the crown section.

An arch form comprising a crown section, spring sections pivoted thereto, an adjustable crown section support, and adjustable spring section supports, the latter supports being journaled to swing and attached outwardly from the pivotal connections between the crown section and the spring sections respectively, and a base in whichsaid latter supports are journaled.

G. A portable base, an arch form comprising a plurality of sections hinged together and supports, adjustable as to length. journaled to said base and connected with said sections respectively.

In testimony whereof, I have hereunto set my hand at Los Angeles, California this 8th dayof October 1906.

JACOB E. STREET.

In presence of--- Luius R. TOWNSEND, R. W. hIAll'llN.