close

Вход

Забыли?

вход по аккаунту

?

Патент USA US2074130

код для вставки
March 16, 1937.
2, 074,130
a. s. PENLEY “
PROCESS AND APPARATUS FOR SURFACING'ROOFING
Filed Oct. 26, 1953
2 Sheets-Sheet l
INVENTOR
13. 5: Fem/er
BYZ/‘A '
.
ATTO R N EY
March 16,1937.
‘
B. s. PENLEY
‘
2,074,130
PROCESS AND APPARATUS FOR SURFACING ROOFING
Filed Oct. 26, 1933
2 Sheets-Sheet 2
93
I
INVENTOR
B. 5. Pen /e)/~
ATTORN EY
Patented Mar. 16, 1937
2,074,130 '
um'reo" STATES PATENT OFFICE
2,014,130
PROCESS AND APPARATUS FOR SURFACING
ROOFING.
I
Benjamin S. Penley, Yeadon, Pa, assignor to The
Barrett Company, New York, N. Y., a corpora
tion of New Jersey
Application October 26, 1933, Serial No. 695,311
16 Claims. (01. 91-43)
This invention relates to the surfacing of roof
'hends such procedure as well as the apparatus for
ing, and more particularly, to the formation of practicing the same.
'
Other objects and advantages will appear from
colored composition roo?ng, such as felt base
roo?ng saturated with bituminous waterproo?ng the following detailed description, taken in con
5 material,‘ coated with bituminous waterproo?ng nection with the accompanying drawings, in 5
material, and having colored granular material
Fig; 1 is a side elevation of surfacing apparatus
partially embedded in the coating on the exposed
which-
‘
_
,
' face of the roo?ng. The term “roo?ng material” embodying this invention;
Fig. 2 is a fragmentary side elevation, partly
is used in a broad sense and is intended to in- a
10 clude material employed for roo?ng, siding, and in section, on an enlarged scale as compared with 10
other analogous protective or decorative pur
poses.
'
'
The application of‘granular material of one
color or blend of. colors to coated roo?ng mate
15 rial during the continuous passage of the roof
Fig. 1, and shows the mechanism for operating a
gate or valve controlling the discharge of granu
lar material from a hopper;
‘
Fig. 3 is a side elevation, somewhat diagram
matic in character, showing equipment for mak- l5
ing material through a roo?ng machine is well
known. It has been proposed to feed a roo?ng
ing composition roo?ng;
sheet or web beneath a series of hoppers con
ing surfaced ‘in accordance with this invention ;
taining di?erently colored granules and operated
concurrently dropped granular material on the
Fig. 5 is a side elevation, partly in section and
parts of the hoppers broken away, and illustrates 20
a modi?ed form of surfacing apparatus embody‘
moving sheet while the sheet progressed a pre-
ing this invention;
20 intermittently in such way that all the hoppers
determined distance, thus forming transverse
stripes on the sheet. Then the ?ow of grit from
25 all the hoppers‘was interrupted while the sheet
was moved a distance equal to the length of the
roo?ng material on which grit had been showered
from the hoppers. An additional hopper was
provided to pour granular material over the whole
30 sheet continuously, sov that any unsurfaced por
tions of the sheet were covered with granular
material.
I Such procedure has the disadvantages‘that ex
cessive amounts of grit require handling, and color
35 bands of desired color cannot be formed on the
roo?ng since the grit applied from the hopper
continuously feeding granular material onto the
sheet commingles with the grit delivered from
the other hoppers, thus a?ecting the color ap
' 40 pearance of the grit on the roo?ng.
Further
more, the intermittent feeding of granular mate
rial simultaneously from a plurality of hoppers
during the movement of the roo?ng is di?icult to
synchronize with the movement of the roo?ng;
45 hence, contiguous portions of certain of the dif
ferently colored bands may blend into each other
throughout to an undesirable extent, or may fail
to meet on the felt, with consequent detriment to
the appearance of the finished elements.
50
It is an object of this invention to provide a sur
facing procedure for readily and e?iciently apply
ing transverse stripes of differently colored gran
_ Fig. 4 shows a fragmentary plan view of roof
,
Fig. 6 is a. fragmentary vertical section through
one of the hoppers of Fig. 5; and
1
.
Fig. 'I is a detailed showing of a front eleva- 25
tion of one of the cams and an associated switch
of the electrically operated control for operating
the gates or valves which .control the discharge
of granular material from the hoppers.
Referring to the drawings, with particular ref- 30 -
erence to Fig. 3, a sheet of ?brous material I ll,
which may be, and preferably is, of the usual
‘roo?ng felt'made of rag ?ber, paper stock, or
other ?brous material. with or without suitable
?llers, as well known in this art, is fed by‘ feed 35
rolls ll from the usual paper making machine or
feed roll into a looping device I2. From the loop
ing device i2, rolls i3 feed the sheet into any suit
able type of saturating apparatus, indicated gen
erally by the reference numeral l4. saturating 40
tank l5 may contain suitable cementitious wa
terproo?ng composition, such as asphalt or other
bituminous material, utilized for the impregna
tion and saturation of roo?ng felts.
Rolls i6 and I1 feedthe saturated sheet to a 45
second looping device l8. The passage of the
saturated ?brous sheet or base through the loop
ing'device i8 gives the saturant an opportunity
to impregnate the base thoroughly and to cool.
Rolls l9 and 2| feed the saturatedsheet from 50
the looping device l8 to the coating apparatus
22, involving a pair of coating rolls 23, 24,‘ a
guide roll 25 being interposed between rolls 2i
and the coating apparatus 22. Coating roll 24
is rotatably mounted in a tank 26 which may 55
ular material to a roo?ng web. In the preferred
embodiment of this invention, successive stream,
each of differently colored granular material, are ‘ contain bituminous material, such as asphalt or
fedto a support, forming a continuousstream other cementitious, waterproo?ng substance suit
able for coating roo?ng felt. Bituminous ma
thereon, contiguous areas of whichare of con
trasting color. This continuous stream is fed to terial may be applied to the top of the sheet by
means of a pipe 21 having a spout of a width ap- 5o
‘60 the coated roo?ng base. This invention compre
2
2,074,180
proximately equal to that of the sheet. As the valve plate of another hopper, say hopper 34, is 4
sheet passes between the coating rolls 23, 24, the simultaneously opened, so that grit is delivered
underside is completely coated by roll 24. The from hopper 34 onto the conveyor belt 38. The
coating material delivered by pipe 21 is spread closing of the valve plate controlling the dis
5 uniformly over the top side by the coating roll _ charge of grit from hopper 35 and the opening
23, excess coating material passing over the edges of the valve plate controlling the discharge from
of the sheet and draining into the tank 26.
hopper 34 is effected substantially simultaneous
Immediately after leaving the coating appli
1y so that the grit delivered from hopper 34 forms
ance 22 and while the coating material is still a continuous stream on conveyor belt 38. Thus,
10 hot, soft and tacky, the coated sheet passes
in e?ect, differently colored grit is delivered from 10
through the surfacing apparatus‘indicated gen
each of the hoppers 3| to 35, the contiguous
erally by the reference numeral 30. The sur
streams merging on conveyor belt 38 so that a
facing apparatus involves ?ve hoppers, 3|, 32, continuous stream, contiguous areas of which are
33, 34, and 35,v each having discharge outlet or of different colors, is fed by the conveyor belt
15 spout 36 in which is rot'atably mounted a dis
38 to the coated sheet passing therebeneath.
tributing roll 31. The drive for roll 31 is pref
This continuous stream forms on the coated sheet
erably geared to that for the rolls or drums 58 transverse stripes | to 5 (Fig. 4) , each of different
and 59, hereinafter described, which pull the color and extending transversely of the length
sheet through the apparatus; hence, the feed of of the sheet.
20 granular material to the sheet is proportional
In the embodiment of the invention shown on 20
to the movement of the coated sheet. While ?ve
hoppers are shown in Fig. 1, it will be under
stood that any desired number of hoppers, de
pending upon the number of transverse bands or
25 stripesit is desired to form on the roo?ng sheet,
may be employed. The hoppers 3| to 35 are
‘ arranged in stepped relation, hopper 3|, furthest
removed horizontally from the discharge point
of the endless conveyor belt 38 disposed beneath
30 the hoppers, being positioned closest to the con
veyor belt, and the hopper 35, closest to the dis
charge end of the conveyor belt 38, being po
sitioned the greatest distance vertically above
the conveyor belt 38. By this arrangement of the
35 hoppers, the time interval required for the fall
of particles from each hopper to the conveyor
belt 38 and the movement of the particles on the
‘ conveyor belt 38 to the deposit point A is sub
stantially the same.
40 Each hopper extends across the full width of
the roo?ng web and is provided with a valve
plate or gate 39 pivoted as at 4| and secured to an
arm 42. Since the gates and the operating mech
anism therefor for all hoppers are of like con
45 struction, only one will be described in detail.
As shown in Fig. 2, arm 42 is pivoted at 43 to a
long arm 44 which passes through a guide slot 45
in a support 46. End 41 of the lever 44 is pro;
vided with a cam roll 48 arranged to travel in a
60 cam track 49 on the cam 5|, keyed to shaft 52.
Shaft 52 has one cam for each hopper 3| to 35,
inclusive, and the cams. are so arranged that the
gates 39 of the hoppers 3| to 35 are operated in
timed sequence, flow of grit from one hopper being
55 interrupted by the closing of the valve plate 39
while ?ow of grit from a second hopper is simul
taneously initiated by the opening of valve plate
39 associated with the second hopper. Different
ly colored grit is supplied to each hopper. , '
60
In operation, as the coated sheet passes be
neath the surfacing device 30, grit of one color
is fed from one hopper by the rotation of the
distributing roll 31 therein, say hopper 35, and
flows onto the belt 38, which is preferably driven
65 at a uniform linear speed at least equal to that
of the web. The belt delivers the grit to the dis
charge point A, the grit leaving the conveyor belt
38 and gravitating onto the continuously mov
ing coated sheet or web passing therebeneath.
70 A guide plate 53 may be suitably mounted to
guide the movement of the grits from the con
veyor belt onto the coated sheet. Upon passage
of the sheet through one unit, in the instant
case, the width of stripe I, 2, 3, or 4 (Fig. 4),
the drawings, the cams 5| are all keyed to one
shaft and the valve plates 39 are operated in
timed sequence so that stripes of uniform width
are formed on the coated sheet. If desired, the
cams or the electrical control hereinafter de
scribed may be designed and arranged so that
all valve plates do not remain open for the same
time interval but one or more of the plates 39
is open for a longer time than the others so
that stripes of different widths, and not of uni
form width, are produced.
After being surfaced as hereinabove described,
the sheet passes about reversing roll 54, which
functions to partially embed the mineral gran
ules in the plastic coating. Any excess granules
fall from the surfaced sheet into a hopper 55
whence they may be sent to any one of hoppers
3| to 35 or may be otherwise used. ‘In the con
tinued passage of the surfaced sheet, it travels
next under hopper 56. Powdered talc, mica; or 40
other anti-stick composition capable of rendering
the back of the sheet non-cementitious is dis
posed in hopper 56. This talc or other material
may be discharged from the hopper 58 by a dis
tributing roll 51 onto the coating on the back of 45
the sheet in the form of a layer covering sub
stantially the entire width of the sheet. The
thus covered sheet then passes over reversing
roll 58, which partially embeds the talc in the
sealback coating and imparts a smooth surface
to the back of the sheet. Excess talc falls from
the sheet as the latter passes from reversing roll
58 to the ?rst of a series of calender rolls, each
designated by the reference numeral 59 which
function to feed the sheet through the coating -55
and surfacing apparatus.
From the calender rolls 59, the sheet is fed by
feed rolls 6| through a looping device 62, where
the coated and surfaced product is given an op
portunity to cool. Feed rolls 63 feed the surfaced 60
sheet to the cutting cylinders 64 which may cut
it longitudinally of the web and transversely into
strip shingles having differently colored trans
verse stripes on the tabs extending along .one
longitudinal edge thereof.
Figs. 5 to '7 disclose a modi?ed form of appa
ratus for applying granular material to the coated
sheet. The electrical control of Figs. 5 to '7 is
preferred since it functions to operate the gates
more quickly than the cam mechanism of Figs. 70
1 and 2. Fig. 5 shows four hoppers, 1|, ‘I2, 13,
and 14, the discharge outlets of which are dis_
posed in the same horizontal plane. The hop
pers are arranged in pairs C and D, pair C be
75 the valve plate of hopper 35 is closed and the 'ing constituted of hoppers 1| and ‘I2 and pair
75
3
D of hoppers 13 and 14. The pairs of hoppers
C and D are disposed ‘ egui-distances on oppo
causing the gate 99 to move to the dotted line
, position shown on Fig. 6.
site sides of the vertical plane represented by a ‘
‘
One
circuit for’energizing and deenergizing
line passing through the deposit point 15 where the solenoids will now be described. Electrical
the grit or other granular material from the hop
conductors 93, 94 (Fig. 5) communicate with a
pers is delivered onto the coated sheet. A guide ‘ suitable source of E. M. F.
plate 16 is arranged to receive granular material
from hoppers 1|, 12 and a second guide plate 11
The solenoids 81 are
connected in parallel with the conductors 93, 94
by suitable conductors and each solenoid has con
is disposed to receive grit from the other two , nected in series therewith and individual there
10 hoppers, 13, 14. These guide plates may be of ‘ to a switch 95. When the switch individual to 10
steel and may be equipped with suitable vibrators.
Hoppers 1|, 12 are disposed equi-distanoes on
.opposite sides of the point represented by refer
ence numeral 19 where I grit is deposited from
15 these hoppers onto the guide plate 19. Guide
plates 19, 8| are associated with hoppers 1|, 12,
respectively, to guide the discharge of grit from
these hoppers onto the plate 16. Hoppers 13, 14
are disposed horizontally equi-distances from de
20 posit point 82. Guide plates 83, 84 are asso
a solenoid is closed, as will be understood, the
solenoid is energized, causing the core to move
upwardly to close the valve plate 39 operated
thereby. The switches 95 are arranged to be
opened and closed by cams 99, each individual 15
to a switch and all keyed to a shaft 91 arranged
to be rotated at a constant speed by an electric
motor (not shown) or other suitable source of
power. Each cam 96 has a raised portion 91'
and a. depressed portion 98, the raised portion be 20
ing arranged to contact with the lower leaf spring
99 of the switch 95 to cause engagement of the
contacts
thereby closing the switch 95.
pers shown in Fig. 5, the path of movement of When the I00,
depressed portion 98 of the cam 96
25 the granules from each of the hoppers to de
comes below the leaf spring 99 of the switch, 25
posit point 15 is substantially the same in ex
‘ the switch opens. The raised and depressed por
tent.“ Accordingly, a like time interval is re
tions of the cams on shaft 91 are arranged in
quired for the flow of the grit particles consti
tuting each of the streams from their source to desired relation to permit opening and closing
30 the deposit point since the speed of rotation of of the switches 95 in desired sequence.
30
‘As shown on Fig. 5, the switch'at the extreme
the distributing rolls in each of the hoppers is
left
is
open
so
that
the
solenoid
associated
with
substantially the same. »
As shown on Fig. 6, an adjustable plate 85 is hopper 14 is deenergized and the gate of this
disposed in one wall of the hopper and functions hopper maintained in open position whereas the
to regulate the extent of the opening 89 through other switches 95 are closed; hence, the solenoids 35
which granular material gravitates to the base in circuit therewith are energized and the gates
portion of the hopper. Each hopper has rotat ‘of the remaining hoppers maintained closed.
ably mounted therein a ?uted distributor roll 31. Upon rotation of shaft 91,- the switch at the ex
As hereinabove indicated, the drive for this roll ' treme left (Fig. 5) is closed and another of. the
40 is preferably geared to that for the calender rolls switches opened, causing deenergization of the 40
59 which pull the sheet through the apparatus. 1 solenoid in circuit with the open switch and the
Rotation of rolls 31 in each hopper functions to opening of the gate or valve of the hopper having
agitate the granular material therein, and when the solenoid in circuit with the open switch.
the gate or valve controlling the discharge of
It will be noted that this invention provides a
ciated with hoppers 13, 14, respectively, to guide
the ?ow of grit from these two hoppers onto
the guide plate 11. With the arrangement of hop
45 granular material is open, to discharge a stream
of granular material therefrom. .When the gate
controlling the discharge of granular material is
closed, as shown in dotted lines on Fig. 6, the
gate interrupts the discharge of granular mate
‘so rial, the continued rotation of the distributing
roll functioning to agitate‘ the material at the
base of the hopper maintaining the granules in
a loose condition so‘that upon subsequent open
ing of the gate to the full line position shown in
55 Fig. 6, discharge of the granules occurs imme
diately. It will be noted from Fig. 6 that the
distributing rolls are rotated vin such direction
that the granular material fed thereby has an
initial velocity in the direction of fall the mo
60 ment the valve plates are opened.
This insures
uniform application of the grit throughout the
surface of the roo?ng.
,
Each hopper is equipped with a solenoid 81,
the core 88 of which is pivoted at 89 (Fig. 6) to
65
an arm 9|, in turn pivoted at 92 and secured to
the gate or valve 39. The core of the solenoid
is constructed and, arranged, as well known in
. the electrical art, so ‘that upon the interruption
70 of the flow of current through the solenoid, the
core drops, pushing down on lever 9| andv caus
ing the gate or valve 39 to swing outwardly to
the full line position shown on Fig. 6. Upon
energization of the solenoid, the core is moved up
wardly to swing the lever or arm 9| upwardly,
surfacing procedure ‘for successively applying
transverse stripes of differently colored granular
45
material to a roo?ng web. Since the time in
terval required ‘for the ?ow of grit particles from
each hopper to point A is substantially the same,
the interruption of the flow of one stream and 50
the substantially simultaneous initiation of the
?ow of the second stream results in the grit con
stituting the leading end of the second stream
being disposed‘ contiguous to the grit constituting
the tail end of the ?rst stream. Hence, _a con
tinuous stream, contiguous areas of which are
of. contrasting color is fed by the conveyor belt
onto the coated sheet moving therebeneath, the
grits forming well de?ned stripes or bands and
this without leaving any portion of the asphalt 60
or- other bituminous coating layer unsurfaced.
Since certain changes in carrying out the above
proces and certain modifications of the appa
ratus ‘may be made without departing from the
scope of this invention, it is intended that all 65
,matter contained in the above description or
shown in the accompanying drawings shall be
interpreted as illustrative and not in a limiting
sense. For example, instead of applying granu
lar material of different colors, ‘granular mate 70
rial of di?erent degrees of coarseness or‘ other
physical characteristics might be supplied to the
hoppers and fed therefrom onto the coated sheet.
If desired, each hopper might be provided with 75
'4
9,074,180
partitions dividing it into compartments, each of
which is supplied with differently colored granu
to a portion of said sheet to form a colored trans
verse band thereon, interrupting the ?ow of said
lar material so that each transverse band I, 2.
3, 4', and 5 (Fig. 4) instead of being constituted
of a single color, as shown in Fig. 4, will be con
stituted of contiguous portions of different colors
and the formation of a plurality of such bands
will result in the production of a "checkerboard”
pattern. Instead of forming bands of uniform
width the cam-operated control mechanism of
Fig. 2 or'the electrically operated control of Fig.
stream of granular material and substantially
simultaneously initiating the ?ow of a second
stream of granular material of different color
extending transversely of said sheet from another
.of said sources and applying it to said sheet to
form a differently colored transverse hand there
on, and interrupting the flow of said second
stream, the ?ow of the stream from each of said 10
plurality of sources being initiated substantially
simultaneously with the interruption of a stream
from another of said sources whereby a continu
ous layer of surfacing material is applied to said
5 could be adjusted so that some gates are open
15
for longer periods than others, thus forming dif
ferently colored bands of different widths.
I claim:
1. Apparatus for surfacing a sheet of roo?ng
material comprising means for moving the sheet
longitudinally, a plurality of stationary hoppers
for containing granules of different character
20
istics, each hopper having a discharge outlet ex
tending transversely across the entire-width of
the sheet, means for ?owing streams of granular
material from said hoppers through said dis
25 charge outlets, and means for sequentially effect
ing cessation of the ?ow of said streams whereby
transverse bands of surfacing material are de
posited from said hoppers onto said roo?ng sheet,
each of said bands extending across the entire
30 width of the sheet and each being constituted
substantially entirely of granular material from
one of said sources.
,
-
2. The process of surfacing a sheet of roo?ng
material which comprises successively feeding
- onto a longitudinally moving support a plurality
of differently colored streams of granular mate
rial extending transversely of said support fmm
a plurality of sources of said material respec
tively, and applying said material from said sup
40 port to a roo?ng sheet without substantially mix
ing the particles from one source with those from
another source, thereby forming differently col
ored transverse stripes on said sheet.
3. The process of surfacing roo?ng which com
prises coating a felt base with cementitious water
sheet, said layer being composed of transverse 15
bands, each constituted substantially entirely of
granular material from one of said sources, the
time intervals required for the travel of the indi
vidual particles from each of said plurality of
sources to the sheet being substantially the same. 20
6. The process of manufacturing shingles
which comprises continuously feeding a coated
web in the direction of its length, successively
applying streams of di?'erently colored granular
material from a plurality of differently colored 25
sources thereof to said web to form differently
colored stripes thereon, said streams extending
transversely with respect to the direction of
movement of said web, the flow of each of said
streams from its source taking place only while 30
the streams from the remainder of said sources
are interrupted, each of said streams forming a
band corresponding'in color to the color of the
source from which it is fed and forming a band
extending transversely across said web, and cut. 35
ting said web longitudinally of its length into
strip shingles having tabs along one longitudinal
edge thereof.
’
»
'I. The process of surfacing roo?ng which com
prises feeding a roo?ng sheet longitudinally, suc 40
cessively feeding from a plurality of sources of
differently colored granular material a plurality
of differently colored streams of such material
extending transversely with respect to said sheet
45
proo?ng material, feeding a stream of granular v and applying said transversely extending streams
material from a source of such material onto
said roo?ng sheet, interrupting said stream of
granular material, initiating a second stream of
Cl 3 granular material of different characteristics
from another source and applying said second
stream to said roo?ng sheet in contiguous rela
tion to said ?rst named stream, each of said
streams extending across the entire width of said
sheet to form transverse stripes of different ap
pearance thereon, the successive ?ow of said
streams preventing substantial mixing of the
granular material of said streams.
4. The process of forming vari-colored roo?ng
60
which comprises applying a stream of colored
surfacing material from a single source to a roof
ing base at a substantially uniform rate, inter
rupting the ?ow of said stream and initiating the
?ow of another stream from a second, different
ly colored source at a substantially uniform rate
to form stripes on said base each of which corre
sponds in color to the granular material of one
of said sources.
5. In a process of surfacing roo?ng material
by applying granular material from a plurality
of differently colored sources thereof to a roo?ng
sheet, the steps comprising ?owing a stream of
‘said material extending transversely of said
75 sheet from one of said sources and applying it
to said sheet, thereby forming differently colored
transverse stripes thereon, the color of each of
which stripes is the same as the color of one of
said sources.
'
8. The process of surfacing roo?ng material 50
which comprises successively feeding differently
colored streams of granular material from a
plurality of sources thereof respectively, onto a
moving support in timed relation to form a con
tinuous stream thereon, and applying the said 55
continuous stream to a roo?ng sheet thereby
forming colored stripes thereon, the color of
each of which corresponds to the color of the
granular material of one of said sources.
9. The process of surfacing roo?ng material
which comprises continuously feeding a cementi
tious sheet beneath a moving support, continu
ously and successively feeding differently colored
streams of granular material from differently
60
65
colored sources of such material onto said mov
ing support to form on said support a continu
ous stream having differently colored areas, the
color of each area of said stream being the same
as the color of the granular material of a corre
70
sponding source, and applying said stream to
said sheet.
10. A machine for making roo?ng including in
combination, means for coating a moving roo?ng
sheet with cementitious material and means for 75
2,074,180
5
applying substantially parallel transverse bands of
14. The process of surfacing a sheet of roo?ng
granular material of di?erent appearance to said material which comprises providing a plurality
,roo?ng sheet, said last named means comprising - of sources of surfacing material of different char
a plurality of stationary sources of granular ma
5 terial of different characteristics, said sources
extending transversely of the direction of move
ment of said roo?ng sheet,‘ means for continu
ously feeding the coated sheet beneath said
sources, means for ?owing a stream of granular
l0 material from one of said sources and applying
said stream to said sheet to form a transverse
band thereon, means for interrupting the ?ow
of said stream from said source, means for suc
cessively initiating the ?ow of a second stream
15 of granular material from another of said sources
for applying said second stream to said sheet in
acteristics, ?owing from one of said sources onto
said sheet for a predetermined interval of time 5
a stream of surfacing material extending trans
versely of the sheet to form a band constituted
substantially entirely of surfacing material of
characteristics corresponding to the characteris
tics of the surfacing material of said one source, 1Q
said band extending transversely of said sheet,
discontinuing the flow of surfacing material from
said one source and flowing from a second source
stream, each of said streams forming a transverse
onto said sheet for a second predetermined inter
val of time a second stream of surfacing material 15
of di?erent characteristics, said second stream
also extending transversely of the sheet, to form _
a second transverse band on said sheet, said sec- ‘,
band on said sheet constituted substantially en
0nd band being constituted substantially entirely‘
substantially parallel relation to said first named
20 tirely‘ of granular material from one of said
sources.
of surfacing material from said second sources” 20
15. The process of surfacing a moving sheet of‘
'
11. In apparatus for surfacing roo?ng, means
for continuously feeding a roo?ng sheet, means
for coating the sheet with cementitious water
25 proo?ng material, a plurality of stationary hop
pers, each containing differently colored gran
ular material, and extending above the sheet
across the width thereof, means for discharging
a stream of granular material from one hopper
‘30 and applying said stream to a portion of the
sheet ‘to form a stripe of the color of the gran
roo?ng material which comprises providing a
plurality of individual, di?erently colored sources
of surfacing material extending transversely of
the sheet across the entire width thereof, ?owing 25
a stream of surfacing material extending trans
versely of said sheet from one of said sources at
a substantially uniform rate for a predetermined
interval of time onto said sheet to form a trans
verse band of predetermined width thereon ex
__ular material in said one hopper extending across
tending transversely entirely across said sheet,
said band being constituted substantially entirely
. ‘the sheet, means for interrupting the discharge
of granular material from said one source, dis
of granular material from said one hopper and
35 means for‘substantially simultaneously initiating
the discharge of a second stream of granular
material from another hopper and applying said
second stream to another portion of the sheet to
form another stripe of the color of the granular
40 material in said last named hopper extending
across the sheet.
‘
-
.
12. In a roo?ng machine in combination, means
for continuously moving a sheet of roo?ng mate
rial, a plurality of independent stationary sources
45 of granular material of different characteristics
located above the path of movement of said roof
ing sheet, said sources extending transversely of
the direction of movement of said roo?ng sheet,
means for initiating ?ow of. a stream of granular
50 material from one of'said sources and flowing
said stream onto a portion of said sheet to form
a transverse band thereon, means for interrupt
ing said stream and successively initiating the
continuing the ?ow of granular material from
said one source, ?owing a stream of differently 35
colored granular material extending transversely
of said sheet from a second source at a substan
tially uniform rate for another predetermined
interval of time onto said sheet to form a second
hand of predetermined width thereonysaid sec- 40
0nd band being constituted substantially entirely
of granular material from said second source and
extending transversely substantially entirely
across said sheet, the bands of surfacing mate
rial from said plurality of sources covering the 45
entire roo?ng sheet Without substantial overlap
ping of contiguous bands.
16. In apparatus for surfacing roo?ng mate
rial in combination, means for continuously feed
ing a cementitious sheet of roo?ng, a conveyor 50
disposed above said sheet and arranged to move
at substantially the same linear speed as said
sheet, a plurality of hoppers having discharge
outlets extending transversely with respect to
tion of said sheet to form a second transverse said conveyor, said hoppers being disposed above
band thereon, said sources and applying means vsaid conveyor in stepped relation, the hopper
being constructed and arranged so that the time remote from the discharge and of the conveyor
being closest to the conveyor and the hopper
interval required for travel of the granular mate
?ow of a stream from- another of said sources
65 and ?owing said second stream to another por
_ 60 rial from each of said sources to said sheet is
closest to the discharge end of the conveyor being 60 _
substantially the same.
disposed vertically the greatest distance above
13. In a machine‘ for surfacing roo?ng mate
the conveyor, means for successively operating
rial, means for coating the roo?ng sheet, a plu
said hoppers to discharge falling streams of ma
rality of stationary hoppers each containing dif- ’ terial therefrom onto said conveyor, said falling
‘55 ferently colored granular material, means for streams forming a continuous layer of granular 65
continuously feeding the coated sheet beneath
said hoppers, andmeans for discharging gran
ular material from each of said hoppers while
preventing the ?ow of granular material from
70 the remaining hoppers, and means for interrupt
ing the ?ow of granular material from each of‘
material on said conveyor, contiguous areas of
whichare of contrasting color, said conveyor
operating to discharge said continuous layer as
a stream onto ‘said continuously moving sheet
forming transverse stripes of differently colored
granular material thereon.
‘ said hoppers while initiating the ?ow from an
other of said hoppers.
BENJAMIN S. PENLEY.
Документ
Категория
Без категории
Просмотров
1
Размер файла
1 039 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа